KR100657656B1 - Ground stabilization pile and its manufacturing method - Google Patents

Abstract

An object of the present invention is to provide a pile structure that can effectively prevent the deformation of the pile due to the stress of the support material and the soil backing. The pile for ground stabilization method according to the present invention is a support means for improving the rigidity of the pile against the stress of the support material and / or the rear soil at the position where the support material is fixed, a sleeve having a cross-sectional shape of the front and rear sides and the side is closed. A member or a plurality of webs is formed. In addition, the pile for ground stabilization method according to the present invention is able to arrange the head of the support material in the pile through the inner cavity formed of the sleeve member or the plurality of webs. Therefore, it is possible to maximize the utilization of the paper because the support material fixing portion can reduce the area protruding to the outside of the pile, and can reduce the construction cost because it can reduce the amount of concrete poured during the construction of the permanent retaining wall.

Thumb Pile, Earth Plate, Earth Anchor, Earth Block

Description

Pile stability method and manufacturing method {PILE FOR METHOD OF GROUND IMPROVEMENT, AND METHOD FOR MANUFACTURING THE SAME}

1 is a view showing a state in which a sleeve member is attached to a pile main body as a first embodiment of a pile for ground stabilization method according to the present invention.

2 is a view showing a state in which a sleeve member is attached to a pile main body as a second embodiment of a pile for ground stabilization method according to the present invention.

Figure 3 (a) to Figure 3 (c) is a cross-sectional view showing a vertical section of the sleeve member as a view showing various embodiments of the sleeve member of the pile for ground stability method according to the present invention.

4 is a cross-sectional view of the pile with a pair of engaging members attached to reinforce the binding of the sleeve member and the web.

Figure 5 (a) is a perspective view of a sleeve member provided with a cavity support plate, Figure 5 (b) is a cutaway view of the sleeve member.

Fig. 6 is a cutaway view showing a state in which the head of the support is fixed to the pile main body.

7 is a view showing a state in which the flange reinforcing plate is attached to both flange portions of the ground stability method pile according to the present invention.

8 and 9 are views showing other embodiments of the ground stabilization pile according to the present invention, Figure 8 (a) and Figure 9 (a) is a perspective view, respectively, Figures 8 (b) and 9 (b) is a cross-sectional view of the support stock government, Figures 8 (c) and 9 (c) is a vertical cross-sectional view of the support stock government.

Fig. 10 (a) shows the case where the vertical cross section of the cavity composed of the second web and the web continuous portion of the pile shown in Fig. 8 is rectangular, and Fig. 10 (b) shows that the vertical cross section of the cavity is hexagonal. It is a figure which shows the case where it is a phase.

Fig. 11 (a) shows the case where the vertical cross section of the cavity composed of the second web and the web continuous portion of the pile shown in Fig. 9 is rectangular in shape, and Fig. 11 (b) shows that the vertical cross section of the cavity is hexagonal. It is a figure which shows the case where it is a phase.

FIG. 12 (a) shows the case where the vertical sections of the second web and the web continuous portion of the pile shown in FIG. 8 are deck plate shaped, and FIG. 12 (b) shows the case where the corrugated shape is formed.

FIG. 13 is a cross-sectional view illustrating a state in which a support material is mounted in the cavity when the cavity supporting plate is provided in the cavity including the second web and the web continuous portion.

14 (a) to 14 (c) are views showing various shapes of the second support material insertion hole formed in the rear flange portion of the pile shown in FIG.

FIG. 15 is a perspective view illustrating a state in which the first and second flange reinforcement plates are attached to the front flange portion and the rear flange portion of the pile illustrated in FIG. 8.

FIG. 16 is a cross-sectional view illustrating a state in which a pipe member is attached to a first support insertion hole and a second support insertion hole formed in a pile for a ground stability method according to a third embodiment of the present invention.

The present invention relates to a pile for a thumb pile used in the ground stabilization method for securing the stability of the pit surface in the construction of the excavation work for the construction of a structure such as a basement or retaining wall of the building during construction or civil engineering. In more detail, as a means for fixing a support material such as an earth anchor or a nail to the file itself, the file for the ground stability method and the method of manufacturing the file is formed with one or more of the support stock government including a cavity It is about.

Excavation of ground in static equilibrium will inevitably cause ground displacement. Therefore, it is very important to select the ground stability method to minimize the ground displacement and deformation. In particular, the design of the masonry structure considering the size, distribution and displacement of the lateral earth pressure acting on the wall is very important in the construction of today's underground structures where problems that can occur with excavation are becoming more complicated in size and contents. Is getting. Therefore, it is essential to select an economical and safe earthing method considering all the conditions such as the topography and geological conditions of the site.

In general, the earthen block method is divided into a earth wall method for maintaining the independence of the back soil sediment and a support method for structurally reinforcing it, and the most popular earth wall method is the thumb pile earth plate method, CIP (Cast In Place) Pile method, SCW (Soil Cement Wall) method, underground wall (Slurry Wall) method, sheet pile method. In addition, the method of supporting the retaining wall is largely divided into a beam method and an anchor method, and the beam method includes a reinforcement method and a reverse hammering method, and the anchor method includes an earth anchor method and a small nailing method.

In particular, the thumb pile earth plate method is to install a thumb pile such as H-Pile in the ground at intervals of 1 to 2 meters before excavation, and to support the collapse and earth pressure of the soil by installing the earth plate between the thumb pile at the same time as the excavation. This type is most commonly used in earth wall, but it is almost unprotected against soil deformation, soil plate backfill, and groundwater, so it must be applied in parallel with grouting if it is necessary for geological conditions. In addition, the earth anchor method does not require braces and braces, thus securing a wide working place, thus improving the excavation efficiency, and supporting the side pressure of the retaining wall with the anchors on the back side, so that it is easy to apply even in digging planes with irregular slope or shape. have. Soil nailing method is a method developed for the purpose of providing a flexible support to the excavation surface or slope stability. This method basically inserts stiffeners that can resist tensile stress, shear stress and bending moment at relatively tight intervals without prestressing, increasing the overall shear strength of the original ground and restraining the displacements as much as possible during or after excavation work. It is a technique to limit the relaxation expected afterwards.

Among the above methods, as a method of forming the earth wall by the pile pile earth plate method and supporting it by the anchor method, the active earth pressure acting in the direction of the earth wall when the excavation hole is formed according to the excavation work of civil engineering and construction work Earth-anchor method using a horizontal beam has been widely used as a method for preventing the earth wall from collapsing. That is, as a method of stacking a plurality of earth plate between a plurality of H-shaped steel column fixed at an arbitrary interval, the earth anchor is used to fix a plurality of H-shaped steel column supporting the earth plate to the earth wall or rock wall. At this time, the fixing of the earth anchor is installed in a horizontal beam as a horizontal beam to a plurality of H-shaped steel column fixed in the vertical direction, and fixed to the H-shaped steel band anchor anchor.

However, in the conventional anchoring method, H-steels are inevitably installed in the longitudinal and transverse directions so that additional heavy equipment must be mobilized, and when using the heavy equipment, H-steels can be lifted and rotated. The risk is very high. In addition, since H-shaped steel is an expensive product, when a pair of H-steel strips are installed at an arbitrary height on the H-shaped steel column, the construction cost is increased by using more materials than necessary. In addition, when the formal structure is integrally constructed on the earth wall supported by the earth anchor, the concrete retaining wall much thicker than the required wall thickness needs to be cast due to the interference of the horizontal beam and the reinforcing steel used in the formal structure. There is a problem that this excessive input.

Therefore, an object of the present invention is to provide a thumb pile for the wall of the mud wall that can be installed on the thumb pile itself, such as an earth anchor or a soil nail, without using the H-shaped steel strip as in the prior art. This eliminates the need for the use of H-beams, thus eliminating complex work processes such as lifting and rotating long piles using heavy equipment. In addition, by using a pair of H-shaped steel strips to fix the anchors, the construction cost of more than necessary materials will be reduced, and the paper usage ratio will be maximized by reducing the paper use area.

Furthermore, an object of the present invention is to provide a pile structure capable of effectively preventing the deformation of the pile due to the stress of the support material and the rearing soil. The file for the ground stabilization method according to the present invention is provided with a support means for improving the rigidity of the pile against the stress of the support material or the soil behind at the position where the support material is fixed. In addition, since the support means forms a cavity inside the pile, it is possible to place the support holding part inside the pile. Therefore, since the support holder fixing portion can reduce the area projecting out of the file, it is possible to maximize the utilization of the paper.

In addition, another object of the present invention is to provide a method for manufacturing a pile file for the ground stabilization method including a tubular sleeve member having a cavity formed at the position where the support material is constructed in the field. This makes it possible to cope with various geologic environments more efficiently by manufacturing piles with superior rigidity in a short time at the construction site.

Hereinafter will be described the characteristics of the configuration of the ground stability method file of the present invention by illustrating the preferred embodiments. Embodiments described below are just one embodiment of the ground stabilization method file according to the present invention, and those skilled in the art may use various modifications within the scope of the technical idea of the present invention.

Ground stabilization pile according to the present invention, the front flange portion and the rear flange portion disposed opposite each other; A web interconnecting the front flange portion and the rear flange portion; An inner cutout portion formed by partially cutting a portion extending from the front flange portion to the rear flange portion through a web for each portion of the support material to be formed into a predetermined shape; And a tubular sleeve member disposed on the inner incision to support the web and having a cavity formed therein. In addition, the sleeve member is characterized in that the front and rear (front and back) is open and the side is closed tubular.

According to another embodiment of the present invention, a front flange portion and a rear flange portion, which are disposed to face each other and have first and second support material insertion holes formed therein, are respectively inserted into and supported by the support material; A first web interconnecting the front flange portion and the rear flange portion, wherein the first and second support material insertion holes are not formed, the first web being disposed at the center of the cross section; A second web interconnecting the front flange portion and the rear flange portion, the second web being disposed parallel to the left and right sides in an area in which the first and second support material insertion holes are formed; And a pair of web continuous parts formed continuously with the first web and the second web and forming a cavity together with the second web.

Furthermore, a method for manufacturing a pile for ground stabilization method according to the present invention, comprising a front flange portion and a rear flange portion disposed opposite to each other, a web connecting the front flange portion and the rear flange portion, the height is H Preparing a file having a width W and a cross section H; Forming an inner incision by partially cutting an inner portion from the front flange portion to the rear flange portion through a web for each portion of the H-shaped pile to be constructed; And attaching a tubular sleeve member disposed in the inner incision to support the web and having a cavity formed therein.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a view showing the support stock 110 of the ground stabilization method file according to the first embodiment of the present invention. The ground stabilization pile 100 according to the first embodiment includes a front flange portion 120 and a rear flange portion 140 disposed to face each other, the front flange portion 120 and the rear flange portion Web 160 interconnecting 140. The pile 100 is made of a long pile, the front flange portion 120 and the rear flange portion 140 has a width of W and a flat plate shape having a predetermined thickness, the web 160 is the front flange portion ( 120) and the rear flange portion 140 is formed in succession at each central portion. That is, the front flange portion 120, the rear flange portion 140 and the web 160 is made of an etched pile having a height of H and a width of W.

The ground stabilization method file according to the first embodiment of the back flange portion via the web 160 on the inside of the front flange portion 120 for each portion of the support material (not shown), such as earth anchors or soil nails A portion up to 140 includes a medial incision formed by partial incision into a predetermined shape. For example, as shown in Figure 1, the inner portion of the front flange portion 120 and the rear flange portion 140 is cut in a rectangle having the dimensions of the horizontal L1 and vertical L2, the incision surface 122 and the incision surface, respectively 142 may be formed. The inner cutout portion is formed by cutting the cut surface 162 of the web 160 in the same plane as the cut surface 122 of the front flange portion 120 and the cut surface 142 of the rear flange portion 140. In other words, the inner incision is formed by cutting in a cube shape having a horizontal length L1, a vertical length L2, and a height H. The inner cutout of such a shape is formed for each position where the support material is to be constructed, and thus, a plurality of inner cuts may be formed in one pile 100.

On the other hand, the sleeve member 200 to be fitted to the inner incision of the same shape as in the first embodiment is manufactured in a tubular shape in which the upper and lower sides or the front and rear sides are opened and the four sides are closed. A cavity is formed. When the direction toward the front flange portion 120 is referred to as a front direction, and the direction toward the rear flange portion 140 is referred to as a rear direction, the sleeve member 200 has a front and rear opening. It can be said that the four sides are closed tubular shape. Sleeve member 200 is preferably formed in a tubular shape having the same outer dimensions as the inner incision. In other words, it is manufactured in a tubular shape having a length L1, a length L2, and a height H1, where the height H1 has the same size as the height H of the pile 100. When the sleeve member 200 having such a structure is fitted to the inner cutout of the pile 100, the four side surfaces 220 of the sleeve member have a cut surface 122 and a rear flange portion 140 of the front flange portion 120. Adjacent to the incision face 142 of the incision) and the incision face 162 of the web 160, respectively. The sleeve member 200 is attached to the pile 100 by welding the cut surfaces 122, 142, and 162 to the four sides 220 of the sleeve member 200. Thus, the four outer surfaces 220 of the sleeve member 200 are attached to respective cut surfaces of the front flange portion 120, the rear flange portion 140, and the web 160 to support each.

Figure 2 shows a second embodiment of the pile for ground stabilization method according to the present invention. The basic structure of the file 100 shown in FIG. 2 is similar to the file shown in FIG. However, the inner cutout shape formed by cutting a part of the front flange part 120, the rear flange part 140, and the web 160 may have a somewhat different shape from that of FIG. 1. That is, the cutout area of the front flange portion 120 and the rear flange portion 140 is cut in a rectangular shape having dimensions of horizontal L1 and length L2, but the area where the web 160 is cut is of length L4 and height D. It is cut to size and formed. D is an inner distance of the front flange portion 120 and the rear flange portion 140. According to the shape of the inner cutout of the pile 100 according to the present invention shown in Figure 2, the longitudinal cut length L4 of the web 160 is the front flange portion 120 and the rear flange portion 140 cut in the longitudinal direction. Have a dimension greater than L2. Therefore, when viewed from the inside of the pile 100, the cut surface 162 of the web 160 is located in the inner side than the cut surface 122 of the front flange portion 120 and the cut surface 142 of the rear flange portion 140. Done. Therefore, a clearance between the incision surface 162 and the incision surface 122 and a clearance between the incision surface 162 and the incision surface 142 is formed.

On the other hand, the sleeve member 200 is preferably formed in a tubular shape having an outer dimension L3, a length L4 and a height H2. Thus, the sleeve member 200 is fitted to the region in which the web 160 is partially cut in the left or right direction of the pile 100. At this time, it is preferable that the horizontal length L3 of the sleeve member 200 is larger than L1 and smaller than or equal to the width W of the pile 100. Accordingly, the upper side 222 and the lower side 224 of the sleeve member 200 are attached to the upper and lower cut surfaces 162 of the web 160 to support the web 160. In addition, both end surfaces 230 formed before and after the sleeve member 200 (not shown in the drawing, but including opposite cross sections) are attached to the inner side surfaces of the front flange portion 120 and the rear flange portion 140, respectively. It will support the flange. In other words, the sleeve member 200 is disposed in the area A indicated by a dotted line in FIG. 2. After arranging the sleeve member 200, the contact surface between the pile 100 and the sleeve member 200 is attached by welding, thereby completing the ground stabilization pile 100 according to the second embodiment.

The sleeve member 200 of the pile for the ground stabilization method according to the present invention shown in Figures 1 and 2 has a tubular shape is opened up and down or front and rear and four sides are closed. In the drawings, the cross-sectional shape of the four sides of the sleeve member 200 is illustrated as having a rectangle or a rectangle. However, the four sides of the sleeve member 200 according to the present invention are attached to the inner side of each of the cut surfaces or both flanges formed by the front flange portion 120, the rear flange portion 140 and the web 160 is partially cut. The shape may be modified in various ways as long as they are supported.

3 is a view for explaining that various modifications of the sleeve member 200 according to the present invention is possible. FIG. 3A illustrates a case in which four edges 222, 224, 226, and 228 of the sleeve member 200 are curved at four corners where they meet each other. The stress transmitted through the web 160 through the sleeve member 200 of this configuration can be prevented from being concentrated in the corner. FIG. 3 (b) shows a case where the deck plate 232 is attached to the inner side of the four sides of the sleeve member 200, and FIG. 3 (c) shows the case where the corrugated support plate 234 is attached. Through such a configuration, the stiffness of the sleeve member 200 can be further enhanced. It is also possible to form the four sides 222, 224, 226, and 228 itself of the sleeve member 200 as a deck plate or corrugated support plate. The sleeve members 200 of various shapes shown in FIGS. 3A to 3C are applicable to both the first embodiment and the second embodiment. In particular, when the sleeve member 200 is disposed inside the inner cutout as shown in FIG. 2 to attach both end surfaces 230 to the inner side surfaces of the front flange portion 120 and the rear flange portion 140, the deck plate. Alternatively, by arranging a sleeve member having a corrugated support plate or having a deck plate or corrugated four sides as such, it is possible to more effectively support the stress caused by the supporting material or the back ground applied in the horizontal direction. Therefore, the file can be more effectively prevented from being deformed.

Figure 4 shows the case of using a pair of coupling members 300 to improve the adhesion of the pile and the sleeve member for ground stabilization method according to the present invention. The pair of coupling members 300 are selectively attached to each of the upper surface 222 and the lower surface 224 of the sleeve member 200 at a portion where the sleeve member 200 contacts the web 160. The pair of coupling members 300 are spaced apart from each other at intervals of the thickness of the web 160, and the web 160 is positioned between the gaps. As shown in FIG. 4, the pair of coupling members 300 may be coupled to the sleeve member 200 by a bolt / nut coupling method. In this case, the bolt insertion hole 320 is previously drilled in the coupling member 300, so that the bolt and nut 322 may be fastened, but it may be fastened by welding or the like.

5 shows another embodiment of the sleeve member 200 used in the pile for the ground stabilization method according to the present invention. The sleeve member 200 shown in FIG. 5 (a) has the same tubular shape as above or below, and four sides are closed. However, the sleeve member 200 shown in FIG. 5 (a) has a difference in that a cavity supporting plate 240 is formed to support an inner cavity surrounded by four sides. By improving the bending strength of the sleeve member 200 through the cavity support plate 240, it is possible to more effectively prevent deformation due to external stress. In addition, the pile for the ground stabilization method according to the present invention is to insert a support material such as an earth anchor or a nail nail through a cavity formed in the sleeve member (200). Therefore, when the cavity support plate 240 is formed of a flat plate disposed parallel to the front flange portion 120 and the rear flange portion 140, there is a support member insertion hole 242 is formed therein the support material is inserted through It is preferable. The formation position of the support member insertion hole 242 is determined according to the inclination angle of the support member to be inserted, and is preferably formed in an elliptical shape to have a sufficient free space. FIG. 5 (b) shows a cut-away cross section of the upper surface 222 and the lower surface 224 of the cavity support plate 240 and the sleeve member 200 in which the support insertion hole 242 is formed. In addition, the joint supporting plate for supporting the sleeve member 200 may be composed of a flat plate perpendicular to both flanges. In this case, it is preferable to be disposed opposite to each other on the left and right of the region through which the support is inserted through the cavity.

When using the sleeve member 200 including the hollow support plate 240 shown in FIG. 5, it is possible to install a head fixing bracket for fixing the head of the support material to the hollow support plate 240. Do. FIG. 6 illustrates a case in which the bracket 440 is disposed on the cavity support plate 240 and the sleeve member 200, and the support head 420 is attached to the support fixing surface of the bracket 440. In this configuration, the head is fixed to the support head 420 after constructing the support material 400 such as an earth anchor or a soil nail through the support material insertion hole formed in the cavity support plate 240. Therefore, it is possible to arrange the head of the support material, which was conventionally fixed using the H-shaped steel strip, inside the cavity formed in the pile 100 according to the present invention used as a thumb pile. In addition, after fixing the head of the support member 400 in this way, it is also possible to seal the inside of the cavity of the sleeve member 200 using a filler. In this case, if the cover 422 is applied to cover the cutout region of the front flange 120, it is easier to seal the cavity using a filler. The cover 422 may be attached to the front flange portion 120 by welding or the like using a flat plate. Moreover, the flange reinforcement board mentioned later can also be used as a cover which seals the said cavity. As the filler 460 for sealing the support head, it is preferable to use plastic or concrete. That is, by using a synthetic resin such as epoxy, urethane, or the like filling concrete mortar, it is possible to waterproof or anticorrosive treatment of the cavity of the sleeve member 200 equipped with the support head. In addition, the use of reinforced plastics, such as fiber-reinforced plastics may prevent the cavity from being deformed due to external stress. In addition, since the head fixing portion of the support material is disposed in the cavity formed in the pile itself, the area protruding to the outside is reduced. Therefore, when the concrete is installed to install the permanent retaining wall after forming the retaining wall, the amount of concrete required for the retaining wall installation can be reduced, thereby reducing the overall construction cost. In addition, in the past, since the H-shaped steel strip was used, the area where the head of the support material protrudes to the outside inevitably occupies a considerable area. However, when the support material head is mounted in the cavity formed inside the file using the file according to the present invention, You can increase the usage rate of the paper.

On the other hand, Figure 7 is shown with respect to the flange reinforcement plate usable in the pile for the ground stabilization method according to the present invention. The flange reinforcement plate shown in FIG. 7 includes a first flange reinforcement plate 520 attached to the front flange portion 120 and a second flange reinforcement plate 540 attached to the rear flange portion 140. As shown in FIGS. 1 and 2, since the inner cutout is formed in the pile 100, cross-sectional coefficients of the front flange part 120 and the rear flange part 140 may be reduced. Therefore, as a means for reinforcing the front flange portion 120 and the rear flange portion 140, it is also possible to employ the first and second flange reinforcing plates (520, 540). The flange reinforcing plates 520 and 540 may have a size that includes all of the cutout regions formed in both flange portions, and may have a dimension covering only a part of the flange reinforcing plates 520 and 540. In addition, the first flange reinforcement plate 520 and the second flange reinforcement plate 540 may be selectively employed, and if necessary, only the first flange reinforcement plate 520 may be employed to reinforce only the front flange part 120. It is also possible. In addition, these flange reinforcing plates (520, 540) can be fastened to the pile 100 in a bolt / nut fastening method, it may be attached by a welding method. In addition, when attaching both the first flange reinforcing plate 520 and the second flange reinforcing plate 540, each of the first insert through the support member (not shown) through the cavity of the sleeve member 200 It is preferable that the first and second support insert insertion holes are formed.

On the other hand, the first flange reinforcing plate 520 using a flat plate manufactured in an appropriate size, if necessary, in the front flange portion 120 at a position including all or a portion of the cut portion of the front flange portion 120 Attached. In addition, a head fixing bracket 522 may be attached to the first flange reinforcing plate 520 to fix the head of the support member. If necessary, the bracket 522 may be attached to the first flange reinforcing plate. It is also possible to form integrally with the. The bracket 522 is provided with a support head 524 to fix the head of the support material, to fix the head after the construction of the support material.

Next, another embodiment of the ground stability method pile according to the present invention will be described. The file for the ground stabilization method to be described below is a case where a cavity is formed by itself. The basic configuration of the file is similar to the embodiments described above. That is, it comprises a front flange portion 120 and the rear flange portion 140, consisting of a web 160 for interconnecting them are made of a long file in the longitudinal direction. In addition, when the area where the support material is fixed, such as the earth anchor or the nail, is referred to as the support inventory 110, one or more support inventory is formed in the file. Hereinafter, the features of the specific configuration will be described with reference to the accompanying drawings.

8 and 9 are a third and fourth embodiment according to the present invention, the first support member insertion hole 112 and the second support member insertion hole 112 which are arranged to face each other and the support member can be inserted through each position where the support member is to be constructed. A front flange portion 120 and a rear flange portion 140 in which holes 114 are formed, respectively; The first web 160 disposed at the center of the cross section as a region where the front flange portion 120 and the rear flange portion 140 are connected to each other, but the first and second support material insertion holes 112 and 114 are not formed. ); A second web 164 interconnecting the front flange portion 120 and the rear flange portion 140 and disposed parallel to left and right sides in an area where the first and second support material insertion holes 112 and 114 are formed; And a pair of web continuous portions 166 formed continuously with the first web 160 and the second web 164 to form a cavity together with the second web. The pile 100 of such a configuration is provided with one or two or more support stock 110, the support web 110, the second web 164 and the web continuity 166 forming a cavity Is formed integrally with the front flange portion 120, the rear flange portion 140 and the first web 160. In addition, the first support member insertion hole 112 and the second support member insertion hole 114 through which the support member can be inserted are positioned at predetermined positions of the front flange part 120 and the rear flange part 140 of the support member 110. Is formed.

8 (a) and 9 (a) are perspective views of a pile for stabilization method according to the third and fourth embodiments of the present invention, Figures 8 (b) and 9 (b) is a first support material insertion hole FIG. 8 is a cross-sectional view of the support stock 110, and FIG. 8 (c) and FIG. 9 (c) show a vertical cross section of the support stock 110. FIG. 8 (c) and 9 (c), the first support holder insertion hole 112 and the second support holder insertion hole 114 are formed at the inclination angle at which the support member (not shown) to be inserted is inserted downward. It is formed to have. 8 (a) to 8 (c) show a case in which the second web 164 is formed continuously from the left and right edges of the front flange portion 120 and the rear flange portion 140. 9C, the second web 164 includes left and right edges of the front flange portion 120 and the rear flange portion 140, and the first and second support material insertion holes 112 and 114. Is placed between the left and right edges. That is, when comparing the cross-sections of the support stock 110 of the piles shown in Figs. 8 and 9, the case of Fig. 8 is in the shape of a rectangle, and Fig. 9 is a "II" shape is different. Since the first and second support member insertion holes 112 and 114 are formed in the pile stabilization method file having such a configuration, the support member can be constructed therethrough, and the support member can be fixed to the pile itself used as a thumb pile. It becomes possible. In addition, by forming the second web 164 formed opposite to each other on the left and right sides of the support inserting holes, it is possible to prevent the rigidity of the pile due to the first and second support inserting holes.

10 and 11 are cross-sectional views showing the cross-sectional shape of a cavity composed of the second web 164 and the web continuous portion 166 of the pile according to the third and fourth embodiments of the present invention. 10 (a) and 11 (a) show a case where the vertical cross section of the cavity formed of the second web 164 and the web continuous portion 166 has a rectangular shape, and FIGS. 10 (b) and 11 ( b) is a case where the vertical cross section of the cavity which consists of the 2nd web 164 and the web continuous part 166 is hexagon shape. As such, it is preferable to modify the shape of the cavity formed by the second web 164 and the web continuous part 166 so that the stress transmitted from the first web 160 is not concentrated in a part. In addition, although not shown in the drawings, the portion where the second web 164 and the web continuous portion 166 are continuous and the portion where the web continuous portion 166 and the first web 160 are continuous may be curved. Do. Through such a configuration, the stress transmitted from the first web 160 is prevented from being concentrated at the bent portion.

12 (a) and 12 (b) show a case where the second web 164 and the web continuous portion 166 are formed of deck plates or corrugated support plates instead of flat plates. As a result, the second web 164 and the web continuous part 166 may increase the area of contact with the front flange portion 120 and the rear flange portion 140, resulting in a horizontal stress transmitted from the support material and / or the rearing soil. It is possible to prevent the file from being modified more effectively. In addition, the stress transmitted from the first web 160 is prevented from being deformed due to the localization of the pile. FIG. 12 illustrates a case in which both the second web 164 and the web continuous portion 166 are formed of a deck plate or a corrugated support plate. However, only one of the second web 164 and the web continuous part 166 is formed of a deck plate or a corrugated support plate. It is also possible.

On the other hand, the ground stabilization pile according to the third and fourth embodiments is characterized in that it comprises a cavity surrounded by the second web 164 and the web continuity (166). Therefore, it is possible to form a cavity support plate therein for supporting the second web 164 and the pair of web continuous portions 116 therein to support the cavity. The cavity support plate may be disposed at various positions therein to support the cavity. For example, the cavity support plate may be formed as a flat plate parallel to both flange portions, or may be formed as a flat plate perpendicular to both flange portions. In particular, as shown in the cut cross-sectional view of the pile according to the third and fourth embodiments shown in Figure 13, when the joint supporting plate 168 is disposed parallel to the front flange portion 120 and the rear flange portion 140 In this case, it is preferable to form the third support member insertion hole 169 through which the support member 400 can be inserted at a predetermined position of the cavity support plate 168. Through such a configuration, it becomes possible to include the head of the support member 400 in the interior of the cavity. Furthermore, the head fixing bracket 440 for fixing the head of the support material is disposed on the joint support plate 168, and after the support material 400 is constructed, the head is supported by the support head 420. ) To fix it. In addition, it is possible to waterproof or anticorrosive the head of the support by filling the interior of the cavity with plastic or concrete. The filler 460 used herein is the same as the first and second embodiments described above. When the inside of the cavity is sealed using the filler 460, it is preferable to use the cover plate 422. In this case, after fixing the head of the support material, the cover plate 422 is attached to the front flange part 120 in a bolt / nut fastening method or a welding fastening method, and the filler (not shown) is pre-drilled through the cover plate (not shown). 460). The cover plate 422 may also be used as a means for reinforcing the front flange portion 120, in which case a flange reinforcement plate may be employed. In the case of fixing the head of the support material in the cavity formed in the pile body as described above, the stress transmitted from the support material 400 is transmitted to the second web 164 and the web continuous part 168 through the joint support plate 168. The stress is transmitted to the front flange portion 120, the rear flange portion 140, and the first web 160 to be transferred to the entire pile 100.

In the third and fourth embodiments according to the present invention, the first and second support inserting holes 112 and 114 are formed in the support stock fixing unit 110 of the pile 100. The forming positions of the support inserting holes 112 and 114 may be arranged to have an inclination angle in which the support insert to be inserted downward is inserted, as shown in FIGS. 8 and 9. It may be formed to have. In addition, as shown in Figure 14 (a), it is also possible that the second support material insertion hole 114 formed in the rear flange portion 140 is formed in an elliptical shape having a long diameter in the vertical direction. Therefore, it is possible to freely adjust the inclination angle according to the surrounding environment during the construction of the support. It is preferable to avoid the construction of the ground soil to insert the support material such as earth anchor or soil nail, if it is soft ground or locally, so that it can actively cope with the construction environment than if it is formed at a fixed inclination angle. Is advantageous in For the same reason, as shown in Fig. 14B, it is also possible to form the second support material insertion hole having a long diameter in the horizontal direction. Furthermore, FIG. 14 (c) shows a case in which the support fixing portion 116 extending from the rear flange portion 140 is formed at the position where the second support inserting hole is formed in order to more easily fix the support. The second support insert insertion hole in FIG. 14 (c) is formed in an elliptical shape, but does not affect the second web 164 and the web continuous part 166 extending from the rear flange part 140. It is also possible to freely deform the shape.

15 shows a flange reinforcing plate attachable to the pile for the ground stability method according to the third embodiment. The first flange reinforcing plate 520 is attached to the front flange portion 120, the second flange reinforcing plate 540 is attached to the rear flange portion 540. The flange reinforcing plate (520, 540) is attached to prevent the reduction of the cross-sectional coefficient due to the first and second support member insertion holes (112, 114) formed, selectively in the front flange portion or the rear flange portion Can be used. In particular, the flange reinforcing plate (520, 540) is provided with a fourth support member insertion hole 526 through which the support material can be inserted, which is the first and second support member insertion holes (112, 114) formed in the pile 100 It is preferably arranged to coincide with. In addition, a head fixing bracket 522 for fixing the head of the support material is disposed on the first flange reinforcing plate 520 attached to the front flange part 120. The bracket 522 may be manufactured as a separate member and attached to the first flange reinforcing plate 520, or may be manufactured integrally with the first flange reinforcing plate 520. After the construction of the support material to secure the head (頭部) of the support material through the support head 524. Here, the first flange reinforcing plate 520 functions not only as reinforcing means for reinforcing the front flange portion 120 but also as a pressure plate for a bearing force transmitted through the supporting material. Although FIG. 15 illustrates a state in which the flange reinforcing plates 520 and 540 are attached to the pile shown in FIG. 8, the present invention is also applicable to the pile shown in FIG. 9.

Meanwhile, in the pile structure illustrated in FIG. 8, the second web 164 extends from the left and right edges of the front flange portion 120 and the rear flange portion 140. Therefore, since the horizontal cross-section of the support stock 110 is in a quadrangular shape, the free space for arranging the earth plate constituting the retaining wall in the thumb pile earth plate method is not provided. In order to compensate for these disadvantages, the first flange reinforcing plate to be disposed in the support stock fixing unit 110 has a width larger than that of the front flange portion 120 so that the earth plate catching portions 526 are formed on the left and right sides, respectively. In addition, in order to more easily arrange the earth plate, an inclined portion 528 is formed to be inclined on the upper or lower portion of the earth plate catching portion 526.

In addition, as shown in Figure 16, the ground stabilization method files of the third and fourth embodiments according to the present invention is extended from the first and second support holder insertion holes 112, 114 of the support stock 110 It includes a formed pipe member 600. The pipe member 600 may be made of a separate member, and may be formed by fitting the first and second support member insertion holes 112 and 114 and then welding them or may be integrally formed with the pile. It is possible to prevent deformation of the first and second support retaining insertion holes through the pipe member 600. It is also possible to waterproof or anticorrosive the head of the support by filling the pipe member with plastic or concrete.

The ground stability method file of the present invention described above, and the first and second flange reinforcement plate, the pipe member, and the sleeve member, etc., which are fastened in addition thereto, may be adopted as long as the material has the rigidity required for structural design. . Although the pile for the ground stabilization method of the present invention is preferably made of H-Pile having a steel material, it can be made of plastic as long as it satisfies the conditions required for the construction of the basement wall or retaining wall. . In particular, when manufacturing the ground stability method pile of the present invention in a plastic material, reinforced plastics such as engineering plastics (FRP: Fiber Reinforecd Plastics) such as engineering plastics, or carbon fiber or glass fiber composited in plastic It is also possible to manufacture with Reinforced Plastics. In particular, when the plastic is manufactured, since the corrosion resistance is good, it is more advantageous for the construction of the permanent retaining wall in consideration of problems such as environmental pollution. In addition, the use of recycled plastics is more preferable in terms of not only saving manufacturing costs but also reducing plastic by-products. It will also be readily understood by those skilled in the art that it is possible to use a pile of reinforced concrete material.

In addition, in the case of forming a cavity in the fixing member, it is possible to seal the inside with a filler such as synthetic resin or concrete to waterproof and anticorrosive treatment. As described above, it is preferable to seal the interior of the cavity with a filler even when the head of the reinforcing member is embedded and fixed in the cavity, as well as when the head of the reinforcing member is fixed to the front flange of the fixing member. In particular, when the sleeve member is attached to the first and second reinforcing material insertion holes, it is easier to seal the filler material.

The present invention provides a thumb pile for the wall of the mud wall that can be installed on the thumb pile itself, such as earth anchors or soil nails without using the H-shaped steel strip as in the prior art. Therefore, there is no need to use H-steel strips, so complicated work processes such as lifting and rotating long piles using heavy equipment can be omitted. In addition, by using a pair of H-shaped steel strips to fix the anchor, it is possible to reduce the construction cost of more than necessary materials, and also to maximize the paper usage rate by reducing the paper use area due to the banding.

Furthermore, the present invention provides a pile structure that can effectively prevent the deformation of the pile due to the stress of the support material and the soil backing. In addition, the file for the ground stabilization method according to the present invention forms a cavity at the position where the support is fixed, it is possible to place the support holding part inside the file through this. Therefore, the support holder fixing portion can reduce the area protruding out of the file can maximize the utilization of the paper.

In addition, the present invention provides a method for producing a file that can be immediately produced on site in the field stabilization method file including a tubular sleeve member formed with a cavity at the position where the support material is constructed. This makes it possible to cope with various geologic environments more efficiently by manufacturing piles with superior rigidity in a short time at the construction site.

As mentioned above, the ground stability method pile and the manufacturing method of the pile which were demonstrated by demonstrating the preferred embodiment were demonstrated. However, it will be understood by those skilled in the art that the present invention may be embodied in a modified form without departing from the essential characteristics of the present invention. Therefore, the embodiments of the present invention described herein should be considered in a descriptive sense, not in a limiting sense, and the scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the scope are equivalent to the present invention. Should be interpreted as being included in.

Claims (54)

As a file used in the ground stabilization method, A front flange portion and a rear flange portion disposed to face each other; A web interconnecting the front flange portion and the rear flange portion; An inner cutout portion formed by partially cutting a portion extending from the front flange portion to the rear flange portion through a web for each portion of the support material to be formed into a predetermined shape; And A tubular sleeve member disposed on the inner incision to support the web and having a cavity formed therein; Geotechnical stability method for the file comprising a. The method of claim 1, The pile is ground stability method, characterized in that the cross-section formed by the front flange portion, the rear flange portion and the web H-shaped. The method of claim 1, The sleeve member is ground stability method, characterized in that the front and back (front) is open and the side is closed tubular shape. The method of claim 3, The inner cutout portion is formed by cutting into a cube shape having a horizontal length L1, a vertical length L2, and a height H1, and H1 is the same as the height H of the pile. The method of claim 4, wherein The sleeve member is formed in a tubular shape having the same outer dimensions as the inner cutout, the outer surface of the sleeve member is attached to the cut face of the front flange, the rear flange and the web and the front flange And a pile for supporting the ground stability method, characterized in that for supporting the rear flange and the web. The method of claim 3, The inner cutout portion is formed by partially cutting the front flange portion and the rear flange portion into a horizontal length L1 and a vertical length L2, and the cut portion of the web is formed by partially cutting the vertical length L4 and the height D, and L4. Is greater than L2, D is the ground stability method pile, characterized in that the inner distance between the front flange portion and the rear flange portion. The method of claim 6, The sleeve member is formed in a tubular shape having an outer dimension L3, a length L4 and a height H2, L3 is larger than L1 and smaller than or equal to the width W of the pile, and upper and lower sides thereof are Attached to the upper and lower cutting surfaces of the web, and supported, and both end surfaces formed before and after the support for the ground stability method, characterized in that attached to the inner surface of the front flange portion and the rear flange portion. The method according to claim 5 or 7, The sleeve member is a pile for ground stabilization method, characterized in that the vertical cross-section parallel to the front flange portion. The method of claim 8, The sleeve member is a pile for the ground stability method, characterized in that the four corners are curved. The method according to claim 5 or 7, The side surface of the sleeve member has a deck plate shape or pleat shape, characterized in that the pile for ground stabilization method. The method of claim 3, And a pair of coupling pieces attached to the upper or lower surface of the sleeve member to reinforce the coupling with the web. The method of claim 3, And the sleeve member further comprises a cavity support plate for supporting the cavity formed therein. The method of claim 12, The joint supporting plate is a ground stabilization method file, characterized in that it comprises a support material insertion hole which is disposed parallel to the front flange portion and the rear flange portion and the support material is inserted through the inside. The method of claim 12, The joint support plate is a ground stabilizing method file further comprises a head fixing bracket for fixing the head (頭部) of the support material. Claim 15 was abandoned upon payment of a registration fee. The method according to claim 1 or 14, wherein Ground stabilization method pile, characterized in that the filling of the interior of the cavity with a filler after fixing the head of the support material. Claim 16 was abandoned upon payment of a setup registration fee. The method of claim 15, The filler is a pile for ground stabilization method, characterized in that the plastic (Plastic) or concrete. The method of claim 1, Ground stabilization method pile further comprises a first flange reinforcing plate attached to the front flange. The method of claim 17, Ground stabilization method pile further comprises a second flange reinforcing plate attached to the rear flange. The method of claim 18, And the first and second flange reinforcement plates include first and second support material insertion holes that can be inserted through the support material through the cavity of the sleeve member, respectively. The method of claim 17, The first flange reinforcing plate is ground stabilized pile method further comprises a head fixing bracket for fixing the head (頭部) of the support material. As a file used in the ground stabilization method, A front flange portion and a rear flange portion disposed to face each other and having first and second support material insertion holes formed therein, through which the support material can be inserted at every position where the support material is to be constructed; A first web interconnecting the front flange portion and the rear flange portion, wherein the first and second support material insertion holes are not formed, the first web being disposed at the center of the cross section; A second web interconnecting the front flange portion and the rear flange portion and disposed parallel to left and right sides in an area where the first and second support material insertion holes are formed; And A pair of web continuous parts formed continuously with the first web and the second web and forming a cavity together with the second web; Geotechnical stability method for the file comprising a. The method of claim 21, And the second web is formed continuously from left and right edges of the front flange portion and the rear flange portion. The method of claim 21, And the second web is disposed between left and right edges of the front flange portion and the rear flange portion, and left and right edges of the first and second support holder insertion holes. The method according to any one of claims 21 to 23, The pile for the ground stabilization method, characterized in that the vertical cross section of the cavity composed of the second web and the pair of web continuous portions formed at both ends thereof has a quadrangular shape. The method according to any one of claims 21 to 23, A pile for the ground stabilization method, characterized in that the vertical section of the cavity composed of the second web and the pair of web continuous portions formed at both ends thereof has a hexagonal shape. The method according to any one of claims 21 to 23, The second web is a holding pile, characterized in that the deck plate shape or pleated shape. The method of claim 26, The pair of web continuous portion is characterized in that the holding plate characterized in that the deck plate shape or pleated shape. The method according to any one of claims 21 to 23, The cavity further includes a cavity supporting plate for supporting the second web and the pair of web continuous portion therein. The method of claim 28, The joint supporting plate is a ground stabilized method file, characterized in that it is disposed in parallel with the front flange portion and the rear flange portion, the support material insertion hole through which the support material can be inserted. The method of claim 29, The joint support plate is a ground stabilizing method file further comprises a head fixing bracket for fixing the head (頭部) of the support material. Claim 31 was abandoned upon payment of a registration fee. The method of claim 21 or 30, Ground stabilization method pile, characterized in that the filling of the interior of the cavity with a filler after fixing the head of the support material. Claim 32 was abandoned upon payment of a registration fee. The method of claim 31, wherein The filler is a pile for ground stabilization method, characterized in that the plastic (Plastic) or concrete. The method according to any one of claims 21 to 23, File for stabilizing the ground stability method characterized in that it further comprises a flange reinforcing plate attached to the front flange portion or the rear flange portion. The method of claim 33, wherein The flange reinforcing plate is a pile for ground stabilization method characterized in that it comprises a fourth support member insertion hole through which the support member can be inserted. The method of claim 33, wherein The flange reinforcement plate is a pile for ground stabilization method, characterized in that it further comprises a head fixing bracket for fixing the head (頭部) of the support. The method of claim 33, wherein The flange reinforcing plate is ground stability method characterized in that the earth plate engaging portion is formed on the left and right sides. The method of claim 36, The soil plate engaging portion pile for ground stabilization method characterized in that it comprises a slope. Claim 38 was abandoned upon payment of a registration fee. The method of claim 33, wherein The flange reinforcing plate is ground stability method characterized in that the attachment by the bolt / nut fastening method or welding fastening method. Claim 39 was abandoned upon payment of a registration fee. The method according to any one of claims 21 to 23, The first and second support material insertion holes respectively formed in the front flange portion and the rear flange portion are ground stabilization method file, characterized in that the support member is formed to have an inclination angle to be inserted upward. Claim 40 was abandoned upon payment of a registration fee. The method according to any one of claims 21 to 23, The first and second support member insertion holes formed in the front flange portion and the rear flange portion, respectively, ground stability method characterized in that the support member is formed to have an inclination angle to be inserted downward. The method according to any one of claims 21 to 23, The second support member insertion hole formed in the rear flange portion is a ground stabilization method file, characterized in that the elliptical shape having a vertical long diameter greater than the diameter of the first support member insertion hole formed in the front flange portion. The method according to any one of claims 21 to 23, The second support member insertion hole formed in the rear flange portion is a ground stabilization method file, characterized in that the elliptical shape having a horizontal long diameter greater than the diameter of the first support member insertion hole formed in the front flange portion. The method according to any one of claims 21 to 23, The second support material insertion hole is a ground support method file, characterized in that the support material to be inserted includes a support for fixing the support for a plurality of inclination angles. The method according to any one of claims 21 to 23, And a pipe member disposed in the second support insertion hole from the first support insertion hole. Claim 45 was abandoned upon payment of a registration fee. The method of claim 1 or 21, The pile is ground (steel), characterized in that the pile for the soil stabilization method is made of reinforced concrete. Claim 46 was abandoned upon payment of a registration fee. The method of claim 1 or 21, The support material is a ground stability method file, characterized in that the earth anchor or a nail. Claim 47 was abandoned upon payment of a registration fee. As a method of manufacturing a pile for ground stabilization method according to claim 1, Preparing a pile having a front flange portion and a rear flange portion disposed opposite to each other, and a web connecting the front flange portion and the rear flange portion to each other and having a height H, a width W, and a cross-section H-shaped; Forming an inner incision by partially cutting an inner portion from the front flange portion to the rear flange portion through a web for each portion of the H-shaped pile to be constructed; And Attaching a tubular sleeve member disposed in the inner incision to support the web and having a cavity formed therein; Method of manufacturing a file for the ground stability method comprising a. Claim 48 was abandoned when the setup fee was paid. The method of claim 47, The sleeve member is a method of manufacturing a pile for ground stabilization method, characterized in that the front and rear (front and back) is opened and the side is closed. Claim 49 was abandoned upon payment of a registration fee. The method of claim 47, The inner cutout portion is formed by cutting into a hexahedral shape having a horizontal length L1, a vertical length L2, and a height H1, and H1 is the same as the height H of the pile. Claim 50 was abandoned upon payment of a set-up fee. The method of claim 49, The sleeve member is formed in a tubular shape having the same outer dimensions as the inner incision, the outer surface of the sleeve member is characterized in that attached to the incision surface of the front flange, the rear flange and the web. Method of manufacturing pile for ground stabilization method. Claim 51 was abandoned upon payment of a registration fee. The method of claim 47, The inner cutout portion is formed by partially cutting the cut portions of the front flange portion and the rear flange portion into a horizontal length L1 and a vertical length L2, and is formed by partially cutting the cut portion of the web into a vertical length L4 and a height D. , L4 is larger than L2, D is the inner distance between the front flange portion and the rear flange portion manufacturing method of the ground stabilization method pile. Claim 52 was abandoned upon payment of a registration fee. The method of claim 51, The sleeve member is formed in a tubular shape having an outer dimension L3, a length L4 and a height H2, L3 is larger than L1 and smaller than or equal to the width W of the pile, and upper and lower sides thereof are Both end surfaces attached to the upper and lower cutting surfaces of the web, and formed before and after the web are attached to the inner surface of the front flange portion and the rear flange portion, respectively. Claim 53 was abandoned upon payment of a set-up fee. The method of claim 47, The sleeve member further includes a cavity support plate for supporting the cavity formed therein, wherein the cavity support plate is disposed in parallel with the front flange portion and the rear flange portion, and the support material is inserted therethrough. Method for manufacturing a pile for ground stabilization method, characterized in that the support material insertion hole is formed. Claim 54 was abandoned upon payment of a setup registration fee. The method of claim 47, And attaching a flange reinforcement plate to reinforce the front flange portion or the rear flange portion after attaching the sleeve member, wherein the flange reinforcement plate is inserted into the support member through which the support member is inserted. Method for producing a pile for ground stabilization method, characterized in that formed.

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