KR101222078B1 - Recovering Structure and Method of Base Displacement by side injection of wedge - Google Patents

Abstract

According to the present invention, when settlement occurs in the ground where the pavement such as asphalt pavement or concrete railroad is laid on the roadbed and the lower part of the gravel trajectory, the pavement in which vertical displacement occurs by press-fitting the wedge is quickly and easily the original height. It relates to a settlement restoring structure and restoration method by indentation of the side wedge to be restored to the.
In the present invention, the restoring module (1) consisting of the restoring pile (10) and the press-fitting wedge (20) to support the load on the upper part of the package (3) is continuously arranged in a plurality in the longitudinal direction on the upper surface of the ground (2). There is; A package 3 is installed on the ground 2 and the restoration module 1; The restoration module 1 has a column-shaped restoration pile 10 which is wrapped with a fiber shell 11 and filled with a filling material therein, and restoration piles 10 from both ends of the restoration pile 10 in the lateral direction. The side fitted to the center of the center but fitted to the restoration pile includes a press-fitting wedge 20 configured to have a tapered shape; When the downward vertical displacement of the package 3 is caused by the ground subsidence under the restoration module 1, the press-fit wedge 20 is further stuck in the direction of the center of the restoration pile 10, so that the restoration pile 10 There is provided a settlement restoring structure and method for restoring settlement by applying an upward vertical displacement to the package 3 by causing the cross-sectional area to expand.

Description

Restoration structure and method of base displacement by side injection of wedge

The present invention relates to a structure and a method for restoring the submerged subgrade and pavement when ground subsidence occurs in the subbed of the gravel under the orbit and concrete pavement or asphalt pavement, specifically, If settlement occurs in the subsurface under the gravel road track, or in the ground where pavement such as asphalt pavement or concrete rail road is laid, press-fit wedge can be pressed to restore the pavement with vertical displacement to original height quickly and easily. It relates to a settlement restoring structure and restoration method by indentation of the side wedge of a new way.

In a section in which the rigidity of the upper part of the ground changes, such as a bridge connecting part of a road that is connected to the upper structure of the bridge, excessive settlement may occur in the ground by an impact caused by the change of the rigidity. In addition, when some sections are made of soft ground, the ground may be settled locally due to the daily traffic load of the vehicle. This phenomenon occurs not only on ordinary concrete or asphalt pavement but also on roadbeds of concrete railroad tracks and gravel tracks.

In particular, local ground sedimentation tends to occur frequently in certain sections, such as stiffness change zones and soft ground zones. When the pavement installed on the ground is made of soft asphalt, As the vertical displacement occurs on the asphalt pavement, cracks occur on the asphalt and at the same time, a gradient occurs on the road surface, which threatens the driving stability of the vehicle. When the pavement is made of concrete pavement or concrete railroad, the step is generated due to the vertical displacement of the concrete slab, resulting in the deformation of the rail, resulting in a deformation of the rail, which is a great obstacle to the stability of the running train. The subsidence of the gravel road track causes the gravel road and rail to settle down, which impairs the ride and driving safety of the train and increases the maintenance cost.

Conventionally, when the vertical displacement of the upper package body due to the ground subsidence, that is, settlement occurs, a method of injecting a chemical solution is used as a method of restoring the settlement of such a package. That is, by injecting the chemical liquid into the ground where settlement occurs, the package is raised again. However, the conventional settlement restoration method through the injection of such a chemical solution requires a considerable time for the expansion and curing of the chemical solution, there is an inconvenience that the road or railway traffic is interrupted for a certain period of time. In addition, there is a high possibility of environmental damage such as soil contamination due to indiscriminate injection. In addition, when ground subsidence occurs repeatedly in the same section, it is difficult to inject the chemical liquid again while the chemical liquid is already injected into the pores of the ground, and the effect of restoring settlement by the chemical liquid injection is also weak. In other words, the restorative restoration technique through the injection of the chemical solution is difficult to apply in the section in which the settlement occurs repeatedly.

The present invention was developed to solve the problems of the prior art as described above, specifically, the settlement of restoration of the upper structure and the package due to the ground subsidence that occurs in the section consisting of a soft ground or a section in which the stiffness of the upper ground changes As the subsidence of the superstructure and package due to the ground subsidence, it is possible to quickly restore the submerged superstructure and package to the original height, reducing the environmental damage by minimizing the injection of chemical liquid into the ground and repeated An object of the present invention is to provide a settlement restoring structure and method for easily restoring a submerged package in response to ground settlement.

In order to achieve the above object, in the present invention, as a structure for restoring the settlement of the package according to the settlement of the ground, the restoration module for supporting the load on the upper package by having a rigidity consisting of a restoration pile and the press-fitting wedge, the A plurality of consecutively arranged longitudinally on the upper surface of the ground such that the longitudinal direction of the restoration pile coincides with the transverse direction of the package; A package is installed on the ground and the restoration module; The restoring module has a column-shaped restoring pile which is wrapped in a fiber shell and filled with a filling material therein and extends in the transverse direction of the package, and the center of the restoring pile from both ends of the restoring pile in the transverse direction. One side includes a press-fitting wedge configured to have a tapered shape, the cross section of which is inserted in the direction but becomes smaller in the direction fitted to the restoration pile; When the vertical displacement of the package occurs due to the ground subsidence under the restoration module, the press-fitting wedges inserted at both ends of the restoration pile are further stuck in the direction of the center of the restoration pile, thereby restoring the filling material filled in the fiber jacket. The settlement restoring structure is provided by moving the center direction and the upward direction so that the cross-sectional area of the restoring pile is expanded to apply the upward vertical displacement to the package to recover settlement.

In addition, in the present invention, as a method for restoring the settlement of the package according to the settlement of the ground, a column-type restoration pile and the transverse direction of the package is wrapped in the outer side with a fiber jacket and the filling material is filled in the transverse direction, and transverse It is configured to include a press-fitting wedge configured to have a tapered shape in which the cross-section becomes smaller from both sides of the restoration pile in the direction toward the center of the restoration pile, respectively, and toward the direction of being fitted into the restoration pile. Thereby restoring a plurality of restoring modules for supporting the load on the upper part of the package, in the longitudinal direction, in the longitudinal direction on the upper surface of the ground such that the longitudinal direction of the restoring pile coincides with the transverse direction of the package; Installing a package over the ground and the restoration module; And when the vertical displacement of the package is caused by the ground subsidence under the restoration module, the press-fitting wedges, which are fitted at both ends of the restoration pile, are further pushed toward the center of the restoration pile to restore the fillers filled in the fiber jacket. Moving to the center direction and the direction of the pile to expand the cross-sectional area of the restoration pile, thereby providing a settlement restoration method characterized in that to restore the settlement by applying an upward vertical displacement to the package.

In the present invention described above, one side of the tapered shape of the press-fitting wedge may have a shape in which the lower surface thereof is not inclined but the straight surface is inclined and the upper surface is inclined and tapered to the fiber jacket of the restoration module 1. The enveloping material may consist of crushed stone, earth and sand, soil cement or mixtures thereof.

According to the present invention, the filling material is contained in the fiber shell so that the restoring module made of piles or beams is placed under the package, and since the restoring module has greater rigidity than the ground against bending and tensioning, the load is applied to the package. Even if the restoration module is to support this load of rigidity, the settlement of the ground is reduced by that much.

In addition, according to the present invention, as the indentation wedge in the restoring module is further embedded into the restoring pile, the cross-sectional size of the restoring pile is expanded so that the restoring pile pushes the package upwards to generate an upward vertical displacement. The downward vertical displacement that occurred in the sieve is recovered, and the upper surface of the package is made flat again, so that the settlement of the package is restored.

In particular, in the present invention, since the settlement restoring operation is performed by the press-fitting of the indentation wedge, the restoring operation can be performed simply and quickly.

In addition, the present invention is to be able to recover the settlement through the mechanical process as described above, it is possible to reduce the injection of the chemical solution into the ground by that much, there is an advantage that can be performed more environmentally friendly settlement restoration work.

On the other hand, if the settlement occurs again after performing the above settlement restoration work, the indentation wedge can be driven deeper into the restoration pile to further expand the cross-sectional area of the restoration pile to restore additional settlement. Even if the settlement occurs repeatedly by repeating the additional indentation operation of the indentation wedge as described above, it is possible to easily settle restoration.

Filler of the restoration module according to the present invention may be made of environmentally friendly and easy to drain material, such as crushed stone or sand, and thus the restoration module also functions as a drain hole, so that the inflow surface water is easily drained. do.

1 is a schematic plan view showing a state in which a restoration module according to the present invention is installed on a ground and a package is installed thereon.
FIG. 2 is a schematic cross-sectional view taken along line AA of FIG. 1 and showing a longitudinal cross-sectional structure of the package, the restoration module, and the ground.
FIG. 3 is a schematic cross-sectional view taken along line BB of FIG. 1, showing a cross-sectional structure of the package, the restoration module, and the ground in the lateral direction.
4 is a schematic perspective view showing a state before the press-fitting wedge is fitted to the restoration pile in the restoration module according to the present invention.
FIG. 5 is a longitudinal cross-sectional view corresponding to FIG. 2, which is a schematic cross-sectional view showing a state in which ground is subsided and a vertical vertical displacement occurs in a package.
FIG. 6 is a schematic plan view of a state corresponding to FIG. 1 showing a state in which the press-fit wedge is further push-ined into the restoration column to restore settlement of the package. FIG.
7 and 8 are schematic cross-sectional views taken along the line CC and the line DD of FIG. 6, respectively.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Although the present invention has been described with reference to the embodiments shown in the drawings, it is to be understood that the technical idea of the present invention and its essential structure and operation are not limited thereby.

FIG. 1 is a schematic plan view showing a state in which a restoration module according to the present invention is installed on a ground and a package is installed thereon, and FIG. 2 is a schematic sectional view taken along line AA of FIG. 1. A schematic cross-sectional view showing the longitudinal cross-sectional structure of the module and the ground is shown, and FIG. 3 is a schematic cross-sectional view taken along line BB of FIG. 1, showing a cross-sectional cross-sectional structure of the package, the restoration module and the ground in the cross-sectional structure. Is shown. 4 is a schematic perspective view showing a state before the press-fit wedge 20 is fitted to the restoration pile 10 in the restoration module according to the present invention.

As shown in the figure, in the settlement restoring structure of the present invention, a restoration module 1 composed of a restoration pile 10 and a press-fitting wedge 20 is installed between the ground 2 and the package 3. That is, in a state in which the restoration module 1 is installed on the upper surface of the ground 2, a structure such as a gravel track or the like is installed on the restoration module 1, or a pavement 3 such as an asphalt pavement or a concrete rail road. It is installed.

The restoring module 1 is surrounded by a fiber envelope 11 made of geotextiles such as geogrids or wire meshes, and filled with fillers such as crushed stone, earth and sand, and the inside of the package 3. It consists of a column-shaped restoration pile 10 extending in the long direction, and a press-fitting wedge 20 fitted in the center direction from the end of the restoration pile 10 in the transverse direction.

Specifically, the restoration pile 10 has a configuration in which a fiber envelope 11 made of a fiber network of geosynthetic fibers such as geogrid or wire mesh surrounds a filling material such as crushed stone, soil, soil cement or a mixture thereof. Or have an elliptical to the other cross-sectional shape having a columnar shape extending long and is laid lying so as to extend in the transverse direction of the package (3). That is, using the fiber mesh or fabric made of geosynthetic fiber having a tensile strength to form a fiber jacket 11 in the form of a pipe-shaped bag and restoring pile 10 in the form of filling the filler in the interior of the fiber jacket 11 (10). ) Is made.

Indentation wedge 20 is the restoration pile 10 toward the center of the restoration pile 10 in the longitudinal direction (reverse direction in the state where the restoration pile 10 is placed on the ground) of the restoration pile 10 at both ends of the restoration pile 10 ( 10) It is inserted into the interior, so that the filling material filled in the fiber jacket 11 is pressed to function to cause the cross section of the restoration pile 10 to expand. To this end, the press-fitting wedge 20 has a tapered shape on one side such that its cross-sectional area gradually decreases from the outer side toward the side in which it is fitted to the restoration pile 10. The indentation wedge 20 may be made into a tapered cylindrical shape using wood, synthetic resin, and the like. In particular, as shown in the figure, when forming the tapered portion of the press-fitting wedge 20, it is preferable that the bottom surface of the press-fit wedge 20 is kept constant while the top surface is tilted and tapered, but smooth settlement Various shapes can be applied for restoration.

The restoration module 1 is manufactured in a state in which the indentation wedge 20 is embedded at both ends of the restoration pile 10, and the indentation wedge 20 is not completely lodged in the restoration pile 10 but will be described later. In order to be able to restore it when settlement occurs, the press-fit wedge 20 is further pushed into the restoring pile 10 and left to leave the margin enough to advance. That is, as shown in the figure, the other side of the press-fitting wedge 20 protrudes outward of the restoring pile 10, and the press-fitting wedge 20 is embedded in both sides of the restoring pile 10, both press-fitting wedges. There is a gap between the tapered one side of the restoring pile 10 in the inner direction of (20), so that the indentation wedge 20 is embedded only enough to advance further into the restoring pile 10.

Restoration module (1) made to have such a configuration is placed on the ground of the ground (2) so that its longitudinal direction coincides with the transverse direction of the package (3), a plurality of longitudinal in the longitudinal direction over the section that needs the settlement restoring structure Recovery modules 1 are arranged in succession. As described above, in the state where the plurality of restoration modules 1 are disposed on the ground, the height of the upper surface of the restoration module 1 and the upper surface of the other part of the ground 2 may be the same. In this way, the restoring module 1 is disposed on the ground in the horizontal direction, and the package 3 is placed on the ground 2 and the restoring module 1 in a state where the plurality of restoring modules 1 are continuously arranged in the longitudinal direction. The ground subsidence restoring structure according to the present invention is achieved by the construction to be constructed. Of course, in some cases, by installing the package 3 thereon while covering the soil on the restoration module 1, there may be a soil layer between the upper surface of the restoration module 1 and the lower surface of the package (3). .

As described above, in the structure in which the restoration module 1 is placed on the ground 2 and the package 3 is constructed thereon, the occurrence of settlement of the package 3 is remarkably reduced due to the presence of the restoration module 1. The effect is exerted. The filling material is contained in the fiber shell 11 so that the restoring module 1 made of piles or beams is placed under the package 3, and the restoring module 1 is larger than the ground 2 for bending and tensioning. Has rigidity Therefore, since the package 3 is supported by the restoring module 1 having greater rigidity than the ground 2, the restoring module 1 supports the load even if a load is applied to the package 3. The effect that the settlement of the ground 2 is reduced by that much is exhibited.

FIG. 5 is a longitudinal cross-sectional view corresponding to FIG. 2, which is a schematic cross-sectional view showing a state in which the ground 2 is settled and a vertical vertical displacement occurs in the package 3, and FIGS. 6 to 8 are FIGS. 1 to 8, respectively. 3 is a schematic plan view showing a state in which the press-fit wedge 20 is press-extruded further into the restoration column 10 to restore settlement of the package 3, and FIGS. 7 and 8. Are schematic cross-sectional views taken along lines CC and DD of FIG. 6, respectively.

The dotted line in FIG. 5 is a state before settlement occurs and the solid line is a settlement state, as shown in the drawing, additional consolidation of the ground 2 itself or a load load on the upper portion of the package 3, etc. Due to this, if the ground subsidence occurs under the restoration module (1), the vertical displacement of the downward direction also occurs in the package (3).

In this case, in order to restore the downward vertical displacement state of the package 3, that is, the settlement of the package 3, as shown in FIGS. 6 to 8, the press-fitting wedges fitted to both ends of the restoration pile 10 ( 20 is further fitted in the center direction of the restoration pile (10). That is, the indentation wedge 20 is further pushed into the restoration pile 10 through a blow or other method. In the case of road pavement, when the impact space of the press-fitting wedge 20 is not secured, the press-fit wedge 20 is made by dividing it shortly, and the press-fit wedge produced in this divided state is rotated while bolted together, the press-fit wedge 20 Can be press-fitted.

Since the inner end of the press-fitting wedge 20 is tapered, when the press-fit wedge 20 is further pushed toward the inside of the restoration pile 10, the filling material filled in the fiber jacket 11 of the restoration pile 10 is moved to both sides. Under pressure, the restoration pile 10 is expanded in a direction in which its cross-sectional area is increased. In addition, the filling material on the tapered portion of the press-fit wedge 20 is moved in the direction of the center and the upward direction of the restoration pile 10 so that the cross-sectional area of the restoration pile 10 is expanded. As the press-fitting wedge 20 becomes more inclined, the restoration pile 10 expands to have a larger cross-sectional size, and thus the restoration pile 10 pushes the package 3 upward. The downward vertical displacement that occurred in 3) is recovered to make the top surface of the package 3 flat again. That is, the settlement of the package 3 is restored by generating an upward vertical displacement with respect to the package 3 generated due to ground subsidence.

As described above, in the present invention, when downward vertical displacement occurs in the package 3 due to the ground subsidence, the package is easily carried out by simply pushing the press-fit wedge 20 deeper into the restoration pile 10. The vertical displacement of (3) is restored. Therefore, it is possible to restore settlements easily and quickly as compared with the prior art. In using the present invention, if necessary, a method of injecting a chemical solution into the ground can be performed in parallel as in the prior art. As described above, since the substantial part of the settlement can be recovered by the present invention, the chemical solution is injected as much as that. It can be reduced, and there is an advantage that the settlement restoration work can be performed more environmentally.

On the other hand, if settlement occurs again after performing the settlement restoration work as described above, by pushing the indentation wedge 20 deeper into the restoration pile 10 to further expand the cross-sectional area of the restoration pile 10 further Settlement can be restored. That is, in the present invention, even if the settlement occurs repeatedly in the same section, by repeatedly performing the additional indentation operation of the indentation wedge 20, it is possible to easily settle restoration.

Restoration module (1) according to the present invention can perform a drainage function in addition to the restorative restoration function as described above, and is an eco-friendly and easy drainage, such as crushed stone or sand as a filler filled in the fiber jacket 11 of the restoration module (1) When the material is used, the restoration module 1 also functions as a drain hole, so that the inflow surface water and the like are easily drained.

1: restoration module, 2: ground, 3: package, 10: restoration pile, 20: press-fit wedge

Claims (4)

As a structure for restoring the settlement of the upper structure and the package (3) according to the settlement of the ground (2),
Restoration module (10) supporting the load on the package 3 by having a rigidity consisting of a restoration pile 10 and the press-fitting wedge 20, the longitudinal direction of the restoration pile 10 is the package (3) A plurality of continuously arranged in the longitudinal direction on the upper surface of the ground (2) to coincide with the transverse direction of the;
A package 3 is installed on the ground 2 and the restoration module 1;
The restoring module 1 has a column-shaped restoring pile 10 extending in the transverse direction of the package 3 with the outer surface of the fiber shell 11 and filled with a filling material therein, and in the transverse direction. Press-fitting wedges configured to have a tapered shape, each of which is fitted in the direction of the center of the restoring pile 10 from both end portions of the restoring pile 10, the one end of which is smaller in cross-section toward the restoring pile 10 ( 20);
When the downward vertical displacement of the package 3 occurs due to the ground subsidence under the restoration module 1, the press-fitting wedges 20, which are fitted to both ends of the restoration pile 10, are artificially restored. By further pushing in the direction of the center of the press the wedge 20 deeper into the restoring pile 10, the filling material that was filled in the fiber jacket 11 of the restoring pile 10 is the pressing force of the indenting wedge 20 Received to move in the direction of the center and the upward direction of the restoration pile 10, the restoration pile 10 is expanded to increase the cross-sectional area, by applying an upward vertical displacement to the package (3) to recover the settlement Settlement Restoration Structure.
The method of claim 1,
One side of the tapered shape of the press-fit wedge 20, the lower surface is not tilted to maintain a straight line, but the upper surface is inclined restoring restoration structure, characterized in that the tapered shape.
The method according to claim 1 or 2,
Filling material to be filled and wrapped in the fiber jacket 11 of the restoration module 1, the settlement restoring structure, characterized in that consisting of crushed stone, earth and sand, soil cement or a mixture thereof.
As a method of restoring the settlement of the package (3) in accordance with the settlement of the ground (2),
The outer shell is surrounded by the fiber shell 11 and the filling material is filled therein so that the pillar-shaped restoration pile 10 extends in the transverse direction of the package 3 and both sides of the restoration pile 10 in the transverse direction. Each end is fitted into the center direction of the restoration pile 10, one side is configured to include a press-fitting wedge 20 configured to have a tapered shape that the cross-section becomes smaller toward the direction fitted to the restoration pile 10 is rigid By having a restoring module (1) for supporting the load of the upper portion of the package (3), on the upper surface of the ground (2) so that the longitudinal direction of the restoration pile 10 coincides with the transverse direction of the package (3), Sequentially placing a plurality in a longitudinal direction;
Installing a package (3) over the ground (2) and the restoration module (1); And
When downward vertical displacement of the package 3 occurs due to ground subsidence under the restoration module 1, the press-fit wedges 20 fitted to both ends of the restoration pile 10 may be centered on the restoration pile 10. Further comprising a step of moving the filler material filled in the fiber jacket 11 in the direction of the center and the upward direction of the restoration pile 10 so as to expand the cross-sectional area of the restoration pile 10. Settlement restoration method characterized in that to recover the settlement by applying an upward vertical displacement.

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