KR20140021445A - Structure for reinforcing bridge transitional zone and restraining vertical-horizontal deformation, and constructing method for the same - Google Patents

Abstract

Provided is an integral construction structure and an integral construction method for reinforcing an earthwork transition zone and restraining the vertical-horizontal displacement of the earthwork transition zone, wherein the structure and the method allow the earthwork transition zone to be applied with a reinforced earth retaining wall method so that: subsidence can be restrained and drainage can be accelerated by reducing earth pressure due to a vertical load and restraining a displacement due to a horizontal load; an area for constructing an abutment wing-wall can be saved; and stability can be improved by securing the drainage and stiffness using a geobag in an abutment direction. The integral construction structure for reinforcing an earthwork transition zone and restraining the vertical-horizontal displacement of the earthwork transition zone comprises: L-shaped plate holders arranged on wing-walls of an abutment; a geogrid arranged on the L-shaped plate holders and forming wing-wall geobags at the portions thereof that touch the L-shaped plate holders; a gabion placed at the upper side of the geogrid to form an abutment front geobag on the front side of the abutment; and backfill soil spread on the upper sides of the abutment wing-wall geobags and the abutment front geobag and connecting the abutment wing-wall geobags and the abutment front geobag by the weight thereof, wherein the earthwork transition zone is integrated by connecting the abutment wing-wall geobags and the abutment front geobag so that the vertical-horizontal displacement of the earthwork transition zone is restrained. [Reference numerals] (AA) Abutment front side direction; (BB) Abutment wing-wall direction

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an integrated construction structure for reinforcing the earth connection portion and suppressing vertical and horizontal displacement,

More particularly, the present invention relates to an integrated construction structure for reinforcing a bridge-to-earth connection and suppressing vertical-horizontal displacement, and a method thereof.

The structure connection part refers to a section where the supporting stiffness of a substructure that supports a track is changed, such as a bridge of earth, a tunnel of a tunnel, a track of a guided track in a guided track, and the like. Due to sudden change of characteristics, it is easy to cause the progress of the track misalignment and deterioration of the ride feeling when the train is running.

Many researches have been made to solve these problems, but no innovative solutions have been presented. The reason for this is that the problem at the actual connection includes various causes such as environmental causes such as rainfall, freezing and drainage, and structural causes of the earth and bridge, in addition to the unevenness of running and supporting stiffness of the train.

It also behaves very complicated due to bridge / track / bedrock interaction and so on. Therefore, it is empirically evaluated because it is very difficult to evaluate the correct behavior at the design stage. Therefore, various approaches and efforts are needed to improve the understanding and performance of the connections.

1B shows the reference of the back fill material quality standard of the connection part of the structure, FIG. 1C shows the reference for managing the back filling of the structure connection part, and FIG. 1D shows the reinforcing method of the structure connection part .

As shown in FIG. 1A, the design and management standards of the domestic connection part are performed by setting four items of the up-and-down vibration acceleration of the vehicle body, the variation of the rolling-weight, the rail stress and the upward rail pressure.

1B, the soil piling material of the structure connection portion should be of the same material as the auxiliary padding having small compressibility and good particle size distribution, To be consistent. The criteria for backfill compaction management of such a structure connection portion is as shown in FIG. 1C.

As shown in FIG. 1D, an approach block, an approach slab, an auxiliary slab, a shear key, or the like may be used for reinforcing the structure connecting portion.

2 is a view for explaining an approach block among reinforcement schemes of a structure connecting portion according to the prior art.

Referring to FIG. 2, an approach block 22 in a reinforcing scheme of a structure connecting portion according to the related art is a bridge stand (alternatively, a bridge stand) A sudden step is generated in the formation level depending on the difference between the settlement of the structure 21 and the structure 10 and the irregularity of track or the ride quality is deteriorated according to sudden change of the road surface strength. It is necessary to provide a buffer section called an approach block in order to avoid a sudden change in the strength of the furnace bed. Such an approach block must be sufficiently fastened with a good quality material (grain size adjustment stone, etc.)

 On the other hand, as the cause of the destruction of the structure connection part, the damage and the cause of the trajectory due to the running of the train at the connection part occur due to complicated action of the track, bridge, earth and the like. One generating factor affects another factor and eventually causes a faulty track or destruction. Therefore, the deformation is more rapid than other sections and maintenance is required. If the maintenance is not carried out in a timely manner, it will affect the ride comfort and driving stability of the vehicle. For this reason, the burden on the maintenance of the structural joints is increasing.

Particularly, the stiffness variation section such as the connection part of the concrete track and the gravel track or the connection part of the bridge or the tunnel should be managed as a vulnerable point in terms of maintenance due to the acceleration of the slippage due to the dynamic stiffness change and the dynamic impact caused by the deflection of the gravel road section . In this regard, in the railway advanced countries, various methods such as low elastic pad laying, reinforcement rail installation, approach block and approach slab have been attempted for stiffness serialization.

In Korea, the approach block was installed in the gravel trajectory of the bridge and the earth connection at the first stage of high-speed railway, and there were no additional reinforcement measures for the tunnel and earth connection. In addition, due to lack of technical review on the method of reinforcing the connection section between the gravel track and the concrete track, and the position of the connection section, it was difficult to maintain the track because of frequent trajectory misalignment at some points in some places. If the concrete track is adopted for the entire section, it is necessary to establish countermeasures especially for the section of the stiffness change of the roadbed. In order to be able to be a tracked track structure that can be managed within a limited track tolerance, research is needed to establish efficient maintenance and planning, quantitative and qualitative analysis, and analysis and experimentation.

In the case of a road bridge or a railway bridge, the alternation is mainly composed of reinforced concrete, and the toe formed on the back surface is composed of gravel or the like. Since the construction is performed by using materials having different rigidity from each other, And the portion where the alternation and the earth contact come into contact with each other is easily buried. This phenomenon occurs not only in alternation but also in concrete culvert. The same phenomenon occurs in the concrete culvert side or the soil which is filled in the back side of the retaining wall.

In addition, since the earth section adjacent to the alternation, tunnel, and box structures is relatively less rigid than the structure, when the same load is applied, more subsidence occurs in the portion of the earthquake with small stiffness. In order to prevent the rapid change of stiffness to such structure and earthwork section, the connection structure is placed in the middle of this part to make the difference of stiffness smooth. In particular, in the case of high-speed railway, the flatness of the track is a very important factor for the speed, so if a displacement exceeding the allowable value affects the driving and safety of the vehicle due to the impact load caused by the step of the track surface.

Especially, in the case of alternation, the vertical load and the horizontal load are generated at the same time, unlike the structure which is normally subjected to the vertical load, so the structure should be strengthened so as to resist it. In order to reduce this effect, the connection structure is varied, and various materials are used to solve the problem. However, the existing structures are complicated in construction steps such as approach slab, approach block, and cement stabilization, and various types of materials are used, and settlement behaves differently due to material properties. Also, most of the vertical loads are considered.

 FIG. 3 illustrates a standard cross-section of a bridge-tunnel connection approach slab according to the prior art, wherein FIG. 3A shows a standard cross-section of a bridge-to-earth connection approach slab and FIG. And the material and the degree of compaction of the cemented gravel 34, the common gravel 35 and the earth surface standard piling 36, respectively.

Fig. 4 illustrates a standard cross section of a tunnel-to-earth connection method approach block according to the related art, wherein Fig. 4a shows a standard cross-section of the tunnel-to-earth connection approach block and Fig. 4b shows a cross- And the material and the degree of compaction of the subsidiary ballast 41, the auxiliary ballast 42, and the particle size adjusting unit, respectively.

In other words, the connection section between the present structure and the earth is constructed with two sections by using high quality materials such as cement treated gravel and general gravel, and is reinforced with concrete auxiliary supports and approach slabs.

However, in the case of the reinforcing method of the structure connecting portion according to the related art, various materials such as concrete structure, gravel, and cement stabilizing treatment can be used to prevent separation and integration of the materials, There is a problem in that the self weight due to the increase in the unit weight is increased. In addition, the environmental problems such as high cost of gravel materials and stones are caused, the quality is deteriorated due to the complicated structure, the reduction effect on the horizontal load is insignificant, and the greater the stiffness of the connecting portion, There is a problem.

In the case of the reinforcing method of the structure connecting portion according to the prior art, the structure of the connecting portion and the construction process are complicated in terms of construction, and the order of the construction is changed according to the alternate installation, and the workability is hindered due to the complicated structure, May occur. In addition, it is difficult to ensure uniform quality due to poor compaction of the front part of the alternation, and the construction of three sections including the cement stabilized section, the gravel aggregate section and the earth section is sequentially carried out so that the integrated construction due to the long construction period and the heterogeneous structure There is a problem that it is difficult.

In the case of the reinforcing method of the structure connecting portion according to the related art, cracks in the upper concrete caused by the change of the stiffness between the concrete structure and the soil, such as the portion adjacent to the alternation, the approach slab, There is a problem in that it sometimes occurs that the material is permeated.

5 is a view for explaining a reinforcing earth retaining wall according to a conventional technique.

As shown in FIG. 5, the reinforced earth retaining wall forming the reinforced earth retaining wall according to the related art is mainly constructed in a direction perpendicular to the traveling direction of a train and is constructed as a retaining wall of an alternating wing wall. Reference numeral 51 denotes an embankment floor reference numeral 52 denotes a stiffener, and reference numeral 60 denotes a train.

The earth reinforcement for forming the reinforcing earth retaining wall is a method for constructing the soil and the reinforcing material to be integrated with each other by putting a reinforcing material such as metal, synthetic fiber or cloth on the back wall or slope .

In other words, unlike other structures, the shift part has difficulty in actively controlling the load in various directions. Especially, when the load is shifted as the traffic load, the settlement is considerably large in the earthquake which has a small stiffness due to the difference of the support stiffness.

In order to overcome such a problem, a structure connecting portion is provided. However, as described above, the structure connecting portion according to the related art is very complicated and can be regarded as a design method more focused on the vertical load than the horizontal load.

1) Korean Registered Patent No. 10-620057 (Filing Date: December 24, 2004), entitled "Method of Reinforcing Support Rigidity of Railway Bridge and Earth Connection" 2) Korean Registered Patent No. 10-768777 filed on November 8, 2006, entitled "Ground Reinforcement Method for Concrete Railroad" 3) Korean Patent Publication No. 2009-130637 (Disclosure Date: December 24, 2009), entitled " Backfill reinforcement structure of rigid structure & 4) Korean Patent Laid-open No. 2009-46309 (published on May 11, 2009), entitled "Reinforced earth retaining wall using rigid wall and rear wall structure of retaining wall & 5) Korean Patent Laid-open No. 2009-93556 (Published on Sep. 2, 2009), entitled "Structure of wall and reinforced earth retaining wall using rigid wall structure & 6) Korean Registered Patent No. 10-891979 filed on November 28, 2008, entitled "Double Structure Shift and Non-Jointed Bridges Using the Same" 7) Korean Registered Patent No. 10-894542 filed on Nov. 18, 2008, entitled "

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems and has as its object the provision of a reinforced earth retaining wall system in the earth connection portion to suppress settlement through effects of reducing earth pressure by vertical load and suppression of displacement by horizontal load, Which is capable of accelerating the vertical-horizontal displacement of the earth connection portion, and a method of the same.

It is another object of the present invention to provide a method and a device for constructing a structure capable of saving paper of an alternative wing wall, And to provide an integrated construction structure for suppressing displacement and a method therefor.

As a means for achieving the above-described technical problem, the integrated construction structure for reinforcing the earthwork connection portion and the suppression of the vertical-horizontal displacement according to the present invention, the L-shaped plate holder disposed on the alternate wing wall; A geogrid disposed on an upper portion of the L-shaped plate holder and forming a wing wall geoback at a portion in contact with the L-shaped plate holder; A gabion disposed above the geogrid to form an alternating front part Geobag in an alternating front direction; And a backfill soil installed on the alternating wing wall geobag and the alternating front portion geobag to connect the alternating wing wall geobag and the alternating front portion geobag to its own weight, wherein the alternating wing wall geobag and the alternating front portion geobag By connecting the bag to integrate the earth connection, it characterized in that the vertical-horizontal displacement of the earth connection is suppressed.

Here, the alternating wing wall geoback and the alternating front part geoback are arranged in such a manner as to surround the entire earthwork connection portion, thereby suppressing horizontal displacement and vertical displacement of the earthwork connection portion.

Here, the geogrid disposed in the portion in contact with the L-shaped plate holder is characterized in that the installation of crushed stone to form a geogrid bag, the geogrid bag is characterized in that the alternating wing wall geoback.

The integrated construction structure for the reinforcement of the earthwork connection portion and the suppression of the vertical-horizontal displacement according to the present invention may further include a clamping pin for fixing the alternating wing wall geoback to the L-shaped plate holder.

Here, the garbled temperature is a garbled mattress, and the garbled mattress is disposed at an upper portion of the geogrid to allow the garbage to be installed therein; And a garbage top network that is bound to the garbone subnetwork with a wire mesh.

Here, the alternating front surface geobag serves as a drainage layer that excludes a horizontal earth pressure that may be generated by the water pressure of the earth connection portion.

Here, the displacement occurring during the construction of the earth connection portion is sufficiently compressed by a pre-loading method to minimize the residual strain in the joint.

As a means for achieving the above technical problem, the integrated construction method for reinforcing the earthwork connection portion and the suppression of vertical-horizontal displacement according to the present invention, a) L-shaped plate holder in the earthwork connection portion between the alternating structure and the earthworks Placing on the alternate wing wall; b) disposing Geogrid, a geosynthetic fiber, on the L-shaped plate rest; c) the geogrid contacting the L-shaped plate rest platform forms a turret and includes a crushed stone therein; d) fixing the geogrid bag on which the crushed stone is placed to form an alternating wing wall geobag; e) disposing a gabion on the top of the geogrid at the alternation front; f) forming a crushed stone at the garbage to form an alternate front geobag; And g) arranging a backfilling soil on an upper portion of the alternating wing wall geobag and the alternating front portion geobag and connecting the alternating wing wall geobag and the alternating front portion geobag according to their own weight to integrate the connecting portion.

Here, the alternating wing wall geoback and the alternating front part geoback are arranged in such a manner as to surround the entire earthwork connection portion, thereby suppressing horizontal displacement and vertical displacement of the earthwork connection portion.

Here, the geogrid bag in step d) is fixed by anchor type bracket-type fixing pins.

Here, the step (g) is characterized in that the displacement occurring during the construction of the earth connection portion is sufficiently compressed by a pre-loading method to minimize the residual strain in the joint.

Here, the alternate front surface geobag of step f) serves as a drainage layer that excludes a horizontal earth pressure that may be generated by the water pressure of the earth connection part.

According to the present invention, by introducing the concept of a reinforced earth retaining wall in the cross section of the earth connection portion, it is possible to suppress the alternate horizontal displacement and strengthen the friction force between the soil and the reinforcing material, thereby increasing the rigidity of the roadbed, And the stability can be secured in the long term.

According to the present invention, it is possible to save the paper of the alternating wings and to construct the alternating direction geoback, thereby securing the drainage and the rigidity and improving the stability.

Fig. 1A shows the design and management reference of the connection, Fig. 1B shows the backfill material quality reference of the structure connection, Fig. 1C shows the backfill compaction management reference of the structure connection, and Fig. 1D shows the reinforcement scheme of the structure connection.
2 is a view for explaining an approach block among reinforcement schemes of a structure connecting portion according to the prior art.
3 is a diagram illustrating a standard cross-section of a bridge-tunnel connection approach slab according to the prior art.
4 is a diagram illustrating a standard cross-section of a tunnel-to-earth connection approach block according to the prior art.
FIG. 5 is a view for explaining a reinforced earth retaining wall according to a conventional technique.
6 is a schematic view for explaining the concept of an integrated construction structure for reinforcing the earth connection portion and suppressing vertical-horizontal displacement according to an embodiment of the present invention.
7 is a vertical sectional view of an integrated construction structure for reinforcing the earth connection portion and suppressing vertical-horizontal displacement according to an embodiment of the present invention.
8 is a view showing a construction cross section of an integrated construction structure for reinforcing the earth connection portion and suppressing vertical-horizontal displacement according to an embodiment of the present invention.
FIGS. 9A and 9B are views showing an L-shaped plate rest and an enlarged view in an integrated construction structure for reinforcing the earth connection portion and suppressing vertical-horizontal displacement, respectively, according to an embodiment of the present invention.
10 is a view showing that an L-shaped plate rest and a geogrid are connected to each other by a bracket type fixing pin in an integrated construction structure for reinforcing the earth connection portion and suppressing vertical-horizontal displacement according to an embodiment of the present invention.
11 is a flowchart of an integrated construction method for reinforcing the earth connection portion and suppressing vertical-horizontal displacement according to an embodiment of the present invention.
12 is a view illustrating an installation structure constructed by an integrated construction method for reinforcing the earth connection portion and suppressing vertical-horizontal displacement according to an embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise.

In the case of shifts, unlike vertically loaded structures, both vertical and horizontal loads occur at the same time. Particularly in the case of soft ground, problems such as lateral flow may be caused by horizontal load.

Accordingly, the integrated construction structure and the construction method for reinforcing the earthwork connection portion and suppressing the vertical-horizontal displacement according to the embodiment of the present invention, by introducing a reinforced soil retaining wall method with a lot of construction records and excellent method management for the earthwork connection section The purpose of this study is to solve the long-term problems of roadbeds such as restraint suppression and drainage promotion through the effect of reducing earth pressure by vertical load and suppressing displacement by horizontal load.

6 is a schematic view for explaining the concept of an integrated construction structure for reinforcing the earth connection portion and suppressing vertical-horizontal displacement according to an embodiment of the present invention. FIG. 7 is a cross- FIG. 8 is a vertical cross-sectional view of the integrated construction structure for reinforcing the connection portion and suppressing the vertical-horizontal displacement, and FIG. 8 is a sectional view of the integrated construction structure for reinforcing the earth connection portion and suppressing the vertical- Fig.

6 (a) and 6 (b)), in order to suppress the vertical-horizontal displacement, the shift of the earth connection portion according to the embodiment of the present invention In the integrated construction structure for reinforcement and suppression of vertical-horizontal displacement, a stiffener is formed in the earth connection portion 130 between the alternating structure 110 and the earth portion 120 to suppress displacement of both the horizontal load and the vertical load 6 (a)) and the train traveling vertical direction (alternating wing direction) shown in Fig. 6 (b), for example, Horizontal displacement suppression and integral reinforced soil retaining wall.

The mechanical characteristics of the integrated construction structure for reinforcing the earth connection portion and restraining the vertical-horizontal displacement according to the embodiment of the present invention are as follows: Geared fiber is applied to the alternating front portion (alternating front portion) and the alternating wing portion, After the geogrid is preloaded and preloaded (load-bearing), after the residual displacement converges, the reinforcement and the alternating wing wall are connected by the connecting material and integrated with the wall.

Here, the pre-loading method refers to a method in which a load equal to or greater than that of the structure is applied to the ground to consolidate it before construction, increase the shear strength of the ground, and then remove the load. For example, this pre-loading method is a method of constructing a structure on a soft ground by accelerating and stabilizing the consolidation settlement by putting it on the ground in advance by piling up the soil, and then removing the soil piling and constructing the structure . In addition, the pre-loading method may be used to build up a predetermined level of soil piling after consolidation settlement by performing extra soil piling.

As shown in FIG. 7, the integrated construction structure for reinforcing the earth connection portion and suppressing the vertical-horizontal displacement according to the embodiment of the present invention is constructed such that the front portion (front portion) and the alternate portion (wing portion) We will construct Geobag, a crushing porcelain, by loading method. Here, the geobag can be roughly classified into a woven geotextile and a nonwoven geotextile woven with a polypropylene (PP) raw material. Here, the woven geotextile is woven with warp and weft using filament yarn or spun yarn, and the nonwoven geotextile may be obtained by combining long filament or short filament filament by a method such as needle punching or thermal fusing, It is not.

7, the integrated construction structure for reinforcing the earth connection portion and restraining the vertical-horizontal displacement according to the embodiment of the present invention includes the alternate structure 110 shown in FIG. 6A, An L-shaped plate rest 131, a Geogrid 132, a geogrid bag 133, and a garbage bag 133 as an integrated construction structure for reinforcement of the earth connection portion 130 and suppression of vertical- Gibion: 134).

The L-shaped plate rest 131 is disposed on the alternating wing wall 111. [ Here, the wing wall of the bridge is alternately installed so that the soil does not fall down, and is a connection part between the bridge structure and the embankment and the cut slope, and is installed to prevent the aggregate and the earthwork from moving back and preventing settlement.

The geogrid 132 is disposed on the upper portion of the L-shaped plate rest 131 and forms a geogrid bag 133 at a portion contacting the L-shaped plate rest 131. When the geogrid bag 133 is rotated by an alternating- Thereby forming a bag. For example, Geogrid, which is one of the polymer materials for civil engineering construction, is a lattice type material having approximately 1 to 10 cm holes between ribs manufactured in the warp direction and the weft direction and is mainly used as a reinforcing material in the direction of receiving a load Is used. These geogrids can be varied in composition, connection or bonding methods of ribs, and have lattice structures in the light and weft directions, and are classified into rigid geogrid, soft geogrid, and synthetic geogrid.

The garbage 134 is disposed above the geogrid to form an alternating frontal geobag in the alternating front direction. In detail, the garbons according to the embodiment of the present invention are well known as a wire mesh network in which a hexagonal or quadrangular iron mesh panel is used to make a polyhedral structure and fill a filler such as a rubble or the like therein. For example, a garnet of wire mesh is filled with natural stones, pebbles, rubble and the like inside a garnet knitted with iron mesh, and then it is inserted into a cutout of a road, an anti-erosion mattress of a bank, an erosion prevention bridge of a bridge, And is widely used for applications such as an axial wall.

At this time, backfill soil is installed on the alternating wing wall geo-bags and the alternate front geo-bags, and the alternate wing wall geo-bags and the alternate front geo-bags are connected by their own weights. So that the earth connection portion is integrated.

That is, the alternating front portion geo-bags installed in the alternating front direction and the alternate wing portion geo-bags installed in the alternate wing walls are connected to each other to integrate the earth connection portion. In this case, in the case of the front part of the alternation, the alternating front part geogaback (crushing pod) serves as a drainage layer and serves to exclude the horizontal earth pressure which may be generated by the hydraulic pressure of the connection part. In addition, the displacement generated during the construction is sufficiently compressed by the pre-loading method to minimize the residual strain in the joint.

On the other hand, the connection between the alternate front side geology bag and the alternate wing geology bag will be described in detail with reference to Fig.

Generally, the retaining wall is liable to generate a main earth pressure. At this time, the active earth pressure refers to the earth pressure generated when the wall moves away from the soil on the back side as the main earth pressure. Particularly, the alternating wing wall 111 is a structure in which main displacement is likely to occur because there is no such structure as a lower bearing portion which manually resists against a main earth pressure.

In order to compensate for these disadvantages, sufficient resistance can be exhibited in the geogrid 132, which is the geosynthetic fiber, according to the embodiment of the present invention. However, in order to secure more stability, the connecting material of the alternating wing wall 111 and the geogrid 132, For example, the garbage temperature 134 is installed.

In addition, in the embodiment of the present invention, the alternating wing wall 111 and the alternating wing wall geo-bag 133 are anchored in a loose state after forming the alternate wing wall geo bag 133, for example, , Which will be described later with reference to Fig.

The alternating front part geo bag according to the embodiment of the present invention can secure rigidity by using crushed stone in the interior of the alternate front part geo bag 134 and secure vertical drainage at the alternate part at the same time, Residual deformation can be suppressed by interposition with the geo bag 133. Further, since the entire earth connection portion is surrounded by the geoback, horizontal displacement and vertical displacement can be suppressed. In addition, the geo bag 133 of the alternating wing wall according to the embodiment of the present invention is a system integrated with the longitudinal reinforcing material to suppress the horizontal displacement of the alternate wing wall 111, and the geo bag at the alternate front side, ). ≪ / RTI >

In other words, in the integrated construction structure for reinforcing the earth connection portion and suppressing the vertical-horizontal displacement according to the embodiment of the present invention, the alternating wing wall 111 is provided with an L-shaped plate rest 131 and a bag supporting the geogrid 132 In addition, the alternating front wall portion and the alternating front portion can be integrated by stacking the backside heaters 134 and laying back-filled soil on the alternation front portion. At this time, due to the weight of the garbage 134, no additional equipment is required.

Therefore, the integrated construction structure for reinforcing the earth connection portion and suppressing the vertical-horizontal displacement according to the embodiment of the present invention is a reinforced earth retaining wall and an integral retaining wall type that can appropriately disperse and suppress loads in various directions such as horizontal and vertical directions By doing so, it is possible to improve the durability performance of the earth connection portion. At this time, air can be saved through simplification of construction, and thorough quality control can be achieved through stepwise construction.

FIGS. 9A and 9B are views showing an L-shaped plate rest and an enlarged view in an integrated construction structure for reinforcement of the earth connection portion and suppression of vertical-horizontal displacement, respectively, according to an embodiment of the present invention.

The L-shaped plate rest 131 of the integrated construction structure for reinforcement of the earth connection and the suppression of the vertical-horizontal displacement according to the embodiment of the present invention is configured such that, as shown in FIG. 9A, Lt; RTI ID = 0.0 > wings. ≪ / RTI >

9B, the open space 134 of the integrated construction structure for reinforcing the earth connection portion and suppressing the vertical-horizontal displacement according to the embodiment of the present invention may be a garbage mattress. At this time, The mattress is composed of a low-temperature sub-network 134a and a low-temperature high-side network 134b. After the crushed stone is laid on the low-temperature lower network 134a, after covering the high-temperature upper network 134b, .

10 is a view showing that an L-shaped plate rest and a geogrid are connected to each other by a bracket type fixing pin in an integrated construction structure for reinforcing the earth connection portion and suppressing vertical-horizontal displacement according to an embodiment of the present invention.

10, in the integrated construction structure for reinforcing the earth connection portion and suppressing the vertical-horizontal displacement according to the embodiment of the present invention, the geogrid 132 is disposed on the L-shaped plate rest 131, At this time, the geogrid 132 is rounded so that the length of the geogrid can be made large enough to form the geogrid bag. The geogrid bag formed by installing the crushed stones 136 can be fixed with a bracket type fixing pin 135 as shown in the figure.

FIG. 11 is a flowchart illustrating an integrated construction method for reinforcing the earth connection portion and suppressing vertical-horizontal displacement according to an embodiment of the present invention. FIG. 12 is a cross- FIG. 8 is a view illustrating a construction structure applied by an integrated construction method for suppressing horizontal displacement.

11 and 12, an integrated construction method for reinforcing the earth connection portion and suppressing the vertical-horizontal displacement according to the embodiment of the present invention is characterized in that at the earth connection portion between the alternating structure and the earth, Is disposed on the alternating blade wall 111 (S110).

Next, Geogrid, which is a geosynthetics, is disposed on the L-shaped plate rest (S120).

Next, the geogrids that contact the L-shaped plate rest stand form a turret, and a crushed stone 136 is installed therein (S130). In other words, the L-shaped plate rest 131 is placed under the chiropod 132, At this time, the geogrid 132 is rounded so that the length of the geogrid can be made large enough to form the geogrid bag.

Next, the geogrid basin in which the crushed stones 136 are installed is fixed by a bracket type fixing pin 135 to form an alternating wing wall geoback (S140). That is, the geogrid baskets formed by installing the crushed stones 136 are fixed by the bracket type fixing pins 135, as shown in Fig. 10 described above.

Next, a gabion is arranged on the upper part of the geogrid in the alternation front part (S150).

Next, a crushed stone 136 is installed at the above-mentioned open-loop to form an alternate front side geoback (S160). For example, a garbage mattress is installed so as to overlap with the geogrid 132, and then a crushed stone is laid in the mattress. Specifically, as shown in FIG. 9B, after the crushed stone is installed in the lower net 134a, the upper net 134b of the narrow angle is bound using a wire mesh.

Next, backfill soil 160 is installed on the alternating wing-wall geo-bags 133 and the alternate front-side geo-bags 134, and the alternating-wing wall geo-bags 133 and the alternate front- (134) are connected to integrate the connection portions (S170).

Next, the steps S110 through S170 are repeated to form the earth connection unit (S180).

As a result, according to the embodiment of the present invention, by introducing the reinforced earth retaining wall system in the earth connection portion, the settlement can be suppressed and the drainage can be promoted through the effect of reducing the earth pressure by the vertical load and suppressing the displacement by the horizontal load. In addition, it is possible to save the paper of the alternating wing wall, and it is possible to secure the drainage and rigidity by using the geobag in the alternate direction, thereby enhancing the stability.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

110: Structure (alternating)
111:
120: Sato
130: earth connection (reinforcement)
140:
150: Front surface plate
160: backcountry soil
131: L-shaped plate holder
132: Geogrid
133: Geogrid Bag (Alternate Wing Geo Bag)
134: Gibion (shift front)
135: Screw-type fixing pin
136: Crushed stone
134a:
134b:

Claims (12)

An L-shaped plate rest placed on the alternating wing wall;
A Geogrid disposed at an upper portion of the L-shaped plate rest and forming a winged geo bag at a portion in contact with the L-shaped plate rest;
A gabion disposed at the top of the geogrid to form an alternating front side geobag in an alternating front direction; And
Backfill soil installed on the alternating wing wall geobag and the alternating front portion geobag to connect the alternating wing wall geobag and the alternating front portion geobag to its own weight.
≪ / RTI >
An integrated construction structure for reinforcing and restraining vertical-horizontal displacement of the earthwork connection portion is suppressed by connecting the alternating wing wall geoback and the alternate front part geoback to integrate the earthwork connection portion. . The method of claim 1,
The alternating wing wall geoback and the alternating front part geoback are arranged in such a manner as to surround the entire earthwork connection portion, thereby suppressing horizontal and vertical displacement of the earthwork connection portion. Integrated construction for the construction. The method of claim 1,
Geogrid disposed in the portion in contact with the L-shaped plate holder to form a geogrid bag by laying crushed stone therein, the geogrid bag to form the alternating wing wall geo-bag reinforcement and vertical-horizontal Integrated construction structure for suppressing displacement. The method of claim 1,
An integrated construction for reinforcing earthwork connection and suppressing vertical-horizontal displacement further comprising a clamping pin for fixing the alternate wing wall geoback to the L-shaped plate holder. The method of claim 1,
The garbage temperature is a garbage mattress, and the garbage mattress is
A garbion lower net disposed above the geogrids and containing crushed stone; And
A lower-side upper network connected to the lower-
And the vertical-horizontal displacement is suppressed. The method of claim 1,
Wherein the alternating front portion geoboag serves as a drainage layer that excludes a horizontal earth pressure that may be generated by the water pressure of the earth connection portion. The integrated construction structure for reinforcing the earth connection portion and suppressing vertical-horizontal displacement. The method of claim 1,
Wherein the displacement occurring during the construction of the earth connection portion is sufficiently compressed by a pre-loading method to minimize the residual deformation during the joint operation. The integrated structure for reinforcement of the earth connection portion and the vertical- a) disposing an L-shaped plate rest on an alternating wing wall at the earth connection between the alternating structure and the ground;
b) disposing Geogrid, a geosynthetic fiber, on the L-shaped plate rest;
c) the geogrid contacting the L-shaped plate rest platform forms a turret and includes a crushed stone therein;
d) fixing the geogrid bag on which the crushed stone is placed to form an alternating wing wall geobag;
e) disposing a gabion on the top of the geogrid at the alternation front;
f) forming a crushed stone at the garbage to form an alternate front geobag; And
g) arranging backfill soil on the alternating wing wall geo bag and the alternate front wall geo bag and connecting the alternating wing wall geo bag and the alternate front geo bag according to their weight to integrate the connection part
Integrated construction method for reinforcing and suppressing the vertical-horizontal displacement of the earthwork connection comprising a. 9. The method of claim 8,
Wherein the alternating wing wall geo-bags and the alternate front geo-bags are disposed in the form of an enclosing whole of the earth-to-earth connection portions, thereby suppressing horizontal displacement and vertical displacement of the earth-ground connection portions. . 9. The method of claim 8,
Wherein the geogrid bag of the step d) is fixed by an anchor type bracket-type fixing pin, and the reinforcement of the earth connection portion and the vertical-horizontal displacement are suppressed. 9. The method of claim 8,
Wherein the step (g) is a step of compressing the displacement occurring during the construction of the earth connection portion by a pre-loading method to minimize the residual deformation during the joint use. Integrated construction method. 9. The method of claim 8,
Wherein the alternating front surface geobag of step (f) serves as a drainage layer that excludes a horizontal earth pressure that may be generated by the hydraulic pressure of the earth connection unit. Way.

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