JP5765734B2 - Lightweight embankment sidewall - Google Patents

Description

  The present invention is a lightweight embankment side wall formed along the side surface of a lightweight embankment in which synthetic resin foam plates are stacked, and is attached between the struts erected along the side surface of the lightweight embankment. It is related with the side wall for lightweight embankment provided with the wall panel.

  Conventionally, as shown in Patent Document 1, along the side of a lightweight embankment in which synthetic resin foam plates are stacked, an H-shaped steel column is erected with the space portion sandwiched between both flanges facing each other. There is known a light-weight embankment side wall in which a wall panel is installed so that an end portion is inserted into a space portion between flanges of adjacent struts. Usually, the struts are firmly self-supporting by being driven into the soil or supported by foundation concrete. Moreover, the concrete board is normally used as a wall panel.

JP 2010-222806 A

  However, in the case of the above-mentioned conventional light-weight embankment side walls, long and heavy H-shaped steel columns are erected firmly, and concrete heavy wall panels are dropped from the top of the erected columns in sequence between the columns. Therefore, heavy machinery is indispensable for construction, and there is a problem that construction cost is high. In addition, if the wall panel is damaged, it cannot be replaced unless a heavy machine is inserted, and there is a problem that maintenance and management are laborious and costly.

  On the other hand, for example, in mountainous areas, it is often necessary to construct a lightweight embankment by bending gently. However, in the case of the above-described conventional light-weight embankment side wall, two struts whose directions are changed to the bent portion must be erected, and there is a problem that it takes time to align the direction.

  The present invention has been made in view of the above-described conventional problems, and a first object of the present invention is to provide a lightweight embankment that can be easily constructed and repaired without using heavy machinery. In addition, a second object of the present invention is to make it possible to easily construct a lightweight embankment side wall having a gentle bent portion without adjusting the direction of the support column.

The present invention includes, for the first and second objects, a support column erected along a side surface of a lightweight embankment in which synthetic resin foam plates are stacked, and a wall panel attached between the support columns. In the side wall for lightweight embankment,
The wall panel is a composite plate provided with a surface material on the surface of a core material of a synthetic resin foam,
The support column is attached to a main body section having a hat-shaped cross section in which both leg sections are bent outwardly when the opening of the U-shaped cross section section is directed downward to form a flange section, and the top surface section of the main body section. A back plate, and the back plate side is erected toward the lightweight embankment,
While the side edge of the wall panel is inserted and held between the flange portion of the support column and the back plate,
The distal end side of the anchor pin attached to the column on the rear end side is held by the synthetic resin foam plate constituting the lightweight embankment ,
In addition, the flange portion and the back plate end portions are bent to the opposite sides, and holding portions are formed to sandwich the wall panel at the tip portions of the bent pieces, respectively, so that the flange of the wall panel is formed. The light-filling side wall is characterized in that the insertion angle between the portion and the back plate is variable .

In the present invention, the tip side of the anchor pin is held through the synthetic resin foam plate in the synthetic resin foam plate constituting the lightweight embankment,
The anchor pin is attached to the column by passing the anchor pin through the top surface portion of the main body portion and the back plate, and two nuts screwed to the rear end side of the anchor pin. What is done by sandwiching the top plate and the back plate,
A preferable embodiment includes that a column cover having a U-shaped cross section is inserted into and attached to the opening of the U-shaped cross section of the column from the opening side.

  Usually, the side wall for lightweight embankment is constructed | assembled sequentially with the stacking | stacking of the synthetic resin foam board which comprises a lightweight embankment. The struts in the present invention are supported by anchor pins held by a synthetic resin foam plate that constitutes a lightweight embankment, so that they are joined together with a stack of synthetic resin foam plates and sequentially extended to the height required for wall panel mounting. I can go. Therefore, when installing the wall panel, it is possible to eliminate the work of lifting the wall panel and attaching it, and the wall panel is a composite plate of a synthetic resin foam core material and a surface material, and is lightweight. It can be easily installed by hand. The same applies to repairs, and wall panels and columns can be easily replaced manually.

  In particular, the flange part and the end of the back plate are bent to the opposite sides, and a holding part that sandwiches the wall panel is formed at the end of this bent piece, so that the flange between the wall panel and the back plate If the angle of insertion into the variable is variable, if it is a gentle bend, just adjusting the angle of insertion of the wall panel makes it possible to construct a light-weight embankment wall that can be bent easily without adjusting the orientation of the column that stands on the bent part. be able to.

It is a longitudinal cross-sectional view of the lightweight banking which has the side wall for lightweight banking which concerns on an example of this invention. It is an expansion cross-sectional view of the lightweight embankment which has the side wall for lightweight embankment shown by FIG. FIG. 3 is an enlarged view around a support shown in FIG. 1 and FIG. 2, (a) is a cross-sectional view, and (b) is a partial front view. It is an enlarged view of the baseplate used for standing support | pillar in this invention, (a) is a longitudinal cross-sectional view, (b) is a top view. It is an enlarged view of the flat plate-shaped presser plate used for standing installation in this invention, (a) is a longitudinal cross-sectional view, (b) is a top view. It is an enlarged view of the holding plate with a nail | claw used for standing support | pillar in this invention, (a) is a longitudinal cross-sectional view, (b) is a top view. It is a longitudinal cross-sectional view of a wall panel. (A)-(c) is a cross-sectional view which shows the other example of the support | pillar used for this invention, respectively.

  Hereinafter, the present invention will be further described with reference to the drawings. In the drawings referred to below, the same reference numerals indicate the same components.

  As shown in FIGS. 1 and 2, a lightweight embankment 2 is constructed by stacking synthetic resin foam plates 1. The synthetic resin foam board 1 constituting the lightweight embankment 2 may be an extruded foam-formed product or a bead foam-molded product, but is preferably an extruded foam-molded product because of its excellent compressive strength and low water absorption. As the synthetic resin, polystyrene, hard polyurethane, phenol resin, or the like can be used. Polystyrene is preferable because a foam having low water absorption and excellent compressive strength can be obtained.

  Along the side surface of the lightweight embankment 2 shown in the figure, support columns 3 are erected at intervals corresponding to the width of the wall panel 4. Is formed.

  As shown in an enlarged view in FIG. 3, the support column 3 is a hat-shaped cross section in which both leg portions when the opening of the U-shaped cross section 5a faces downward are bent outward to form a flange portion 5b. And a flat back plate 6 attached to the top surface portion of the main body 5. Each column 3 is erected with the back plate 6 facing the lightweight embankment 2. Further, a column cover 7 having a U-shaped cross section is inserted into the opening of the U-shaped cross section 5a of the column 3 from the opening side. By providing the column cover 7, the column 3 can be reinforced and the appearance can be improved. It is preferable that the support cover 7 be bent slightly inward at both ends on the insertion side, because it becomes easier to insert the support cover 3 into the opening.

  A plurality of support columns 3 are connected up and down to the required height. Each support | pillar 3 connected up and down is each supported by the synthetic resin foam board 1 which comprises the lightweight embankment 2 so that it may mention later. For this reason, the connection between the support | pillars 3 does not need to give high intensity | strength, and can be performed by simple means, such as fitting of edge parts.

  A support tube 9 of the base plate 8 is inserted into the lower end portion of the lowermost support column 3 to lock the shift of the support column 3. As shown in an enlarged view in FIG. 4, the base plate 8 is a plate material in which a support cylinder 9 protrudes from the upper surface and a fixing pin driving hole 10 is formed in all directions. The support cylinder 9 protrudes from the base plate 8. A drain hole 11 is formed in the central portion. For example, as shown in FIG. 1, the base plate 8 drives a fixing pin (not shown) through a driving hole 10 on a foundation concrete 12 provided along the formation position of the lightweight embankment side wall 100. It can be used by fixing at an installation interval of 3. It is preferable to use the base plate 8 to lock the lower end portion of the lowermost support column 3 because it is easy to increase the stability of the entire support column 3 connected vertically.

  As shown in FIGS. 1, 2, and 3, anchor pins 13 are inserted into the synthetic resin foam plate 1 that constitutes the lightweight embankment 2 through the top surface portion of the main body 5 and the back plate 6. . The anchor pin 13 penetrates through the synthetic resin foam plate 1 stacked on the lightest embankment side wall 100 side, and the synthetic resin foam plate is formed by pressing plates 14 and 15 provided on the front end portion and the rear end portion side. 1 is sandwiched. That is, the tip end side of the anchor pin 13 is fixed and held by the synthetic resin foam plate 1 through which the anchor pin 13 passes by being clamped by the presser plates 14 and 15. In addition, the anchor pin 13 can also be fixed through the joint between the synthetic resin foam plates 1 without piercing the synthetic resin foam plates 1 as in this example.

  As shown in FIG. 5, the presser plate 14 has a recess 14 a that is pressed from the front side to the back side at the center, and the anchor pin 13 (see FIGS. 1 and 2) is passed through the bottom of the recess 14 a. It is a rectangular flat plate member having a through hole 14b. Further, as shown in FIG. 6, the presser plate 15 has a recess 15a in the center, and a through hole 15b through which the anchor pin 13 (see FIGS. 1 and 2) passes is formed at the bottom of the recess 15a. This is the same as the pressing plate 14 except that the four corners of the rectangular plate material are bent 90 ° toward the back surface to form a claw member 15c. As shown in FIG. 2, in this example, a flat presser plate 14 is used on the rear end side of the anchor pin 13 and a presser plate 15 with a claw is used on the front end side. Both of them can be either a flat pressing plate 14 or a pressing plate 15 with claws. The press plates 14 and 15 are both used with the back side facing the synthetic resin foam plate 1, and the synthetic resin foam plates are fastened by tightening nuts 16 a and 16 b screwed to the anchor pins 13 from the front side. 1 is pressed. Moreover, in the case of the presser plate 15 with a nail | claw, an attachment state can be stabilized by making the nail | claw part 15c bite into the synthetic resin foam board 1. FIG.

  As described above, the anchor pin 13 passes through the top surface portion of the main body portion 5 of the support column 3 and the back plate 6. As shown in FIGS. 1, 2, and 3, the rear end portion of the anchor pin 13 is composed of two nuts 16 c and 16 d that are screwed to the rear end side of the anchor pin 13, and It is attached to the support | pillar 3 by pinching | interposing a top surface part and the backplate 6. FIG. That is, the support column 3 is supported in an upright state by the anchor pin 13 held on the synthetic resin foam plate 1 whose front end side constitutes the lightweight embankment 2. The main body 5 and the back plate 6 can be integrated by welding or the like, but if they are integrated by tightening the nuts 16c and 16d, assembly of the column 3 and attachment of the anchor pin 13 to the column 3 are performed simultaneously. This can be done, and the manufacturing process of the column 3 can be simplified.

  Each column 3 is preferably supported at a plurality of locations by anchor pins 13 in order to obtain a stable standing state. Further, it is preferable that the top surface portion of the pillar 3 of the anchor pin 13 and the back plate 6 are penetrated through a vertically long through-hole 17 as shown in FIG. When the vertically long through holes 17 allow play to the lower part of the anchor pin 13 so that the top surface portion of the support column 3 and the rear plate 6 are penetrated, the anchor pin 13 descends as the lightweight bank 2 compresses and sinks with time. Thus, it is possible to prevent a load from being applied to the column 3.

  As shown in FIG. 1, an upper concrete floor slab 18 is formed on the uppermost surface of the lightweight embankment 2 in a region that covers the support 3 and the wall panel 4 (see FIG. 2) from the upper surface of the lightweight embankment 2. . The upper concrete floor slab 18 is provided with a top cover 19 projecting above the columns 3 and the wall panel 4, and is formed from the lightweight embankment 2 to the top cover 19. Usually, the upper concrete slab 18 is formed by placing concrete (not shown) on the lightweight embankment 2 and then placing concrete. The top cover 19 can be easily provided at a predetermined position by placing concrete after the top cover 19 is fixed to the bar arrangement.

  The top cover 19 in this example has a recess 20 that opens downward. The recess 20 has a groove shape opened on the lower surface of the upper concrete floor slab 7 in correspondence with the positions of the column 3 and the wall panel 4, and the upper ends of the column 3 and the wall panel 4 play around in the recess 20. Has been stored. If it does in this way, even if the support | pillar 3 and the wall panel 4 incline outward, an upper end can be latched by the top cover 19, and a fall can be prevented. In addition, since play is provided in the surroundings, no load is applied to the columns 3 and the wall panel 4 even if the lightweight embankment 2 is compressed and subsided over time. Although not shown in the drawing, if necessary, by placing concrete on the lightweight embankment 2 in the middle of stacking and placing concrete, an intermediate concrete floor slab is provided, and the support capacity of the lightweight embankment 2 is improved. You can also plan.

  The wall panel 4 is comprised with the composite board which provided the surface material 22 on the surface of the core material 21 of a synthetic resin foam, as FIG. 7 shows. As a synthetic resin foam which comprises the core material 21 of the wall panel 4, a polystyrene-type foam, a polyethylene-type foam, a polyurethane-type foam etc. can be used, for example. The core material 21 may be an extruded foam molded product, a bead foam molded product, or a material injected and foamed between the surface materials 17. Preferably, since it is excellent in rigidity, it is a polystyrene-based extruded foam molded product. As the surface material 22, for example, a metal plate such as a galvalume steel plate is preferable from the viewpoint of strength, weather resistance, and the like. In the wall panel 4 in this example, the upper and lower ends are formed as a protrusion 23 and the other end is a groove 24 into which the protrusion 23 can be inserted so that the wall panel 4 can be connected in the vertical direction.

  The strut 3 can also have a structure as shown in FIG. The support column 3 shown in FIG. 8A has a hat-shaped cross section with a shallow back plate 6, and is attached by fitting an opening to the top of the main body 5. If it does in this way, when assembling the support | pillar 3 combining the main-body part 5 and the backplate 6 on-site, it can align automatically by fitting of an unevenness | corrugation, and there exists an advantage that an assembly becomes easy. The support 3 shown in FIG. 8B is bent to the side where the end portions of the flange portion 5b and the back plate 6 face each other, and a holding portion 25 for sandwiching the wall panel 4 is formed at the end portion of the bent piece. The insertion angle between the flange portion 5b of the wall panel 4 and the back plate 6 is variable. In other words, as indicated by the alternate long and short dash line, the wall panel 4 is inserted obliquely between the holding portions 25 and is held, so that if the wall panel 4 is gently bent, the wall panel 4 can be easily adjusted without adjusting the orientation of the column 3. The direction can be adjusted to bend. The column 3 shown in FIG. 8 (c) is a back plate 6 having a shallow hat-shaped cross section as in (a), and has a holding portion 25 formed in the same manner as in (b). The column 3 of (c) has the advantages of (a) and (b).

DESCRIPTION OF SYMBOLS 100 Side wall for lightweight embankment 1 Synthetic resin foam board 2 Light embankment 3 Support | pillar 4 Wall panel 5 Main body part 5a U-shaped cross-section part 5b Flange part 6 Back panel 7 Support column cover 8 Base plate 9 Supporting cylinder 10 Drain hole 11 Drain hole 12 Basic Concrete 13 Anchor pin 14 Flat plate 14a Indented portion 14b Through hole 15 Holding plate 15 with claw 15a Indented portion 15b Through hole 16a to 16d Nut 17 Through hole 18 Upper concrete floor slab 19 Top cover 20 Recessed portion 21 Core material 22 Surface Material 23 Projection part 24 Groove part 25 Holding part

Claims (5)

In the side wall for lightweight embankment comprising a column that is erected along the side surface of the lightweight embankment in which synthetic resin foam plates are stacked, and a wall panel that is attached between the columns.
The wall panel is a composite plate provided with a surface material on the surface of a core material of a synthetic resin foam,
The support column is attached to a main body section having a hat-shaped cross section in which both leg sections are bent outwardly when the opening of the U-shaped cross section section is directed downward to form a flange section, and the top surface section of the main body section. A back plate, and the back plate side is erected toward the lightweight embankment,
While the side edge of the wall panel is inserted and held between the flange portion of the support column and the back plate,
The distal end side of the anchor pin attached to the column on the rear end side is held by the synthetic resin foam plate constituting the lightweight embankment ,
In addition, the flange portion and the back plate end portions are bent to the opposite sides, and holding portions are formed to sandwich the wall panel at the tip portions of the bent pieces, respectively, so that the flange of the wall panel is formed. A light-weight side wall for embankment characterized in that an insertion angle between the portion and the back plate is variable . The side wall for lightweight embankment according to claim 1, wherein the tip end side of the anchor pin is held by the synthetic resin foam plate constituting the lightweight embankment so as to penetrate the synthetic resin foam plate. When the anchor pin is attached to the support column, the main body portion is formed by two nuts that pass through the anchor pin through the top surface portion and the back plate of the main body portion and are screwed to the rear end side of the anchor pin. The side wall for lightweight embankment according to claim 1 or 2, wherein the side wall is sandwiched between the top surface portion and the back plate. 4. The lightweight embankment side wall according to claim 3 , wherein penetration of the top surface portion of the main body portion and the back plate by the anchor pin is performed through a vertically long through hole. In the opening of the U-shaped cross section of the strut, the strut cover U-shaped cross section according to any one of claims 1 to 4, characterized in that attached is inserted from the opening side Lightweight embankment sidewall.

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