WO2023038449A1

WO2023038449A1 - Retaining wall structure

Info

Publication number: WO2023038449A1
Application number: PCT/KR2022/013495
Authority: WO
Inventors: 이계일
Original assignee: 이계일
Priority date: 2021-09-08
Filing date: 2022-09-07
Publication date: 2023-03-16
Also published as: KR20230037004A; KR102484636B1

Abstract

The present invention relates to a retaining wall structure. According to an embodiment of the present invention, disclosed is a retaining wall structure configured by vertically stacking geocells, each geocell being configured by combining a plurality of unit cells, wherein resistance force against horizontal earth pressure is strengthened by using a column element vertically installed through some unit cells of upper-layer geocells and some unit cells of lower-layer geocells, thereby improving stability and durability of the retaining wall.

Description

retaining wall structure

The present invention relates to a retaining wall structure, which is constructed by vertically stacking geocells formed by combining a plurality of unit cells, and pillars installed in the vertical direction through some unit cells of an upper geocell and some unit cells of a lower geocell. It relates to a retaining wall structure that improves the stability and robustness of a retaining wall by strengthening resistance to lateral earth pressure using elements.

A retain wall is a structure made to prevent ground collapse that occurs when the stable slope of the earth surface and the ground is steeper than that, and is made to prevent the soil from collapsing by resisting the pressure of soil. say the wall

Concrete blocks or panels are widely used for installing retaining walls, and in particular, geocells are widely used to construct vegetation retaining walls by planting plants on the front of the retaining wall.

A geocell is a geotextile reinforcing material made in a honeycomb-shaped three-dimensional shape with a synthetic resin board with a thickness of about 10 mm. By filling and compacting soil (granular soil) in a unit cell, the engineering properties such as stiffness of the composite structure are improved. It is used to maximize the shear strength and bearing capacity of the ground by increasing the

When installing a retaining wall by stacking a plurality of geocells in the vertical direction, it is necessary to consider a configuration that prevents the geocells from moving in the lateral direction due to earth pressure, unlike when the geocells are installed in a single layer on a slope.

In view of this, the present inventors, through Korean Registered Patent No. 10-2132732 (registered on July 6, 2020), Korean Registered Patent No. 10-2066728 (registered on January 9, 2020), and Korean Registered Patent No. 10-2010575 (registered on August 7, 2019), geocell A configuration that strengthens the resistance to lateral movement of the bar has been proposed.

However, since the prior art is a method of reinforcing the lateral resistance by using a civil reinforcing material for some of the geocell layers among the plurality of geocell retaining walls stacked in the vertical direction, the lateral resistance from the viewpoint of the entire retaining wall structure of the geocell retaining wall It is necessary to further explore the configuration for strengthening.

In particular, in order to minimize environmental damage caused by the development of urban areas and mountainous areas, and to minimize interference with underground structures at the back of the soil filling section and invasion of the site boundary on the land boundary, civil engineering installed behind the geocell retaining wall It is necessary to reduce the length of the stiffener to a minimum, and in this condition, a configuration to further strengthen the lateral resistance of the entire retaining wall structure is required.

In addition, it is necessary to find a retaining wall structure that can secure the structural stability of the retaining wall even if the height of the retaining wall is increased according to the installation environment.

The present invention was devised in view of the above problems, and is composed of vertically stacking geocells formed by combining a plurality of unit cells, passing through some unit cells of the upper geocell and some unit cells of the lower geocell. It is an object of the present invention to provide a retaining wall structure with improved stability and robustness of a retaining wall by strengthening resistance to lateral earth pressure using pillar elements installed in the vertical direction.

According to one aspect of the present invention, a geocell retaining wall composed of a plurality of unit cells combined and stacked up and down to have a gradient on the front side of a civil engineering slope, and installed by filling the inside of the geocell with soil; and one or more pillar elements installed along the vertical direction to have the same inclination as the geocell retaining wall through some unit cells of the upper geocell and some unit cells of the lower geocell.

Preferably, the pillar element may be a tubular member in which the inner space is filled with a filling material.

Preferably, the filling material may be at least one of soil and aggregate.

Preferably, the filling material may be at least one of concrete, cement grouting, and soil cement.

Preferably, the present invention further includes reinforcing bars inserted and arranged along the vertical direction into the inside of the column element.

Preferably, the tubular member may be a perforated pipe.

Preferably, the pillar element is partially embedded in soil located on the rear surface of the geocell retaining wall and receives a tensile force toward the rear from a civil engineering reinforcing material that receives earth pressure and frictional force.

Preferably, the civil engineering reinforcing material is a belt-shaped reinforcing material, and the belt-shaped reinforcing material is coupled to the pillar element in a form of enclosing at least a portion of the pillar element.

Preferably, two or more of the pillar elements are installed at intervals along the transverse direction, the reinforcing material for civil engineering is a belt-shaped reinforcing material, and at least a portion of the transverse reinforcing bars installed by penetrating the two or more pillar elements in the transverse direction is formed in the belt-shaped The reinforcing material is configured to be bonded in an enveloping form.

Preferably, the reinforcing material for civil engineering is a geogrid configured in the form of a lattice net, and the geogrid is installed in a form passing through the upper and lower separated parts of the column elements.

Preferably, the column element is a tubular member in which reinforcing bars are inserted and disposed along the vertical direction and the inner space is filled with a filler material, and the reinforcing bars form any one grid constituting the geogrid installed to pass through

Preferably, the column element is a tubular member in which the inner space is filled with a filler material containing aggregate, and the aggregate constituting the filler material constitutes the geogrid so as to be engaged with the geogrid through the filler material It is installed so as to penetrate the lattice.

Preferably, a block-shaped resistor is placed on top of a unit cell of a geocell filled with soil inside, the geogrid is installed to be located in the middle of a plurality of vertically stacked geocells, and the front side of the block-shaped resistor, It is bent and deformed in the form of covering the upper side and the rear side, and is installed in the form of covering the block-shaped resistor.

Preferably, two or more fixing rods are installed in a hole drilled in a civil engineering slope by grouting and have one end exposed to the outside of the hole, and the geogrid is installed at different vertical positions. The rear end of the expansion part of the upper geogrid and the rear end of the expansion part of the lower geogrid are integrally connected to each other through a connection part, and one end of a support rod installed across the front side of the connection part is coupled to one fixing rod material, and the other end of the support rod is another one It is coupled to the fixing bar, and the expansion part of the upper geogrid and the expansion part of the lower geogrid receive tensile force from the fixing bar through the support bar.

Preferably, the reinforcing material for civil engineering is a reinforcing bar grid in which reinforcing bars are arranged and combined in a lattice shape, and the front end of the reinforcing bar grid is installed by penetrating two or more column elements installed at intervals in the lateral direction in the lateral direction. configured to be combined.

Preferably, the pillar element is a tubular member capable of filling the internal space with a filling material, fixed to a hole drilled in a civil engineering slope by grouting, and a fixing bar having one end exposed to the outside of the hole is installed. And, one end of the fixing bar inserted through the pillar element is configured to be fastened to the support plate in the inner space of the pillar element.

Preferably, the fixing bar is configured to connect two or more bar elements through a coupler.

Preferably, the pillar element extends toward the soil side located on the rear surface of the geocell retaining wall and is provided with rearward tensile force by a rear reinforcing bar coupled to the pillar element in a form surrounding at least a portion of the pillar element.

Preferably, a support plate is fastened to the rear end of the reinforcing bars for the rear, and the support plate is configured to be buried in the soil located on the rear surface of the geocell retaining wall.

Preferably, a fixing bar is installed in a hole drilled in a civil engineering slope by grouting and has one end exposed to the outside of the hole, and the rear end of the rear reinforcing bar is connected to the fixing bar through a coupler. .

Preferably, the pillar element is a tubular member capable of filling the internal space with a filling material, and has reinforcing bars inserted and arranged along the vertical direction inside the pillar element, and on the rear surface of the geocell retaining wall The rear end extends to the side of the located soil and passes through the column element to receive a rearward tensile force by a band-shaped steel plate reinforcement having a front end coupled to the reinforcing bar in the inner space of the column element.

Preferably, two or more of the pillar elements are installed at intervals along the transverse direction, transverse reinforcing bars penetrating the two or more pillar elements in the transverse direction are installed, and the rear end toward the soil side located on the rear surface of the geocell retaining wall The transverse reinforcement is coupled to the front end of the steel plate reinforcement in the form of an extending band, and a tensile force toward the rear is provided by the steel plate reinforcement.

Preferably, the geocell retaining wall includes a first geocell retaining wall located in front of the civil slope on one side of the soil stack and a second geocell retaining wall located in front of the civil slope on the other side of the soil stack, , The pillar element is installed along the vertical direction by penetrating some unit cells of the upper geocell and some unit cells of the lower geocell of the first geocell retaining wall, and of the first pillar element and the second geocell retaining wall It includes a second pillar element installed along the vertical direction through some unit cells of the upper geocell and some unit cells of the lower geocell, and is coupled to the first pillar element in a form surrounding at least a portion of the first pillar element A belt-shaped reinforcing member is coupled to the second pillar element in a form of passing through the soil laminate and surrounding at least a portion of the second pillar element, so that the first pillar element and the second pillar element have a tensile force toward the soil laminate. is provided

Preferably, two or more of the pillar elements are installed at intervals along the transverse direction, transverse reinforcing bars penetrating the two or more pillar elements in the transverse direction are installed, and the transverse reinforcing bars and another angle in the transverse direction The placed auxiliary transverse reinforcing bars are coupled to the transverse reinforcing bars, and at least one of the transverse reinforcing bars and the auxiliary transverse reinforcing bars is fixed to a hole drilled in a civil engineering slope by grouting, and one end is exposed to the outside of the hole It is coupled and installed to the fixed rod material.

Preferably, an auxiliary reinforcing bar is provided along the vertical direction inserted into the unit cell at a position overlapping with at least one of the transverse reinforcing bar and the auxiliary transverse reinforcing bar, and the auxiliary reinforcing bar is the transverse reinforcing bar And at least one of concrete, cement grouting, and soil cement is combined with at least one of the auxiliary transverse reinforcing bars and filled with at least one of concrete, cement grouting, and soil cement inside the unit cell in which the auxiliary reinforcing bars are inserted and disposed along the vertical direction. The filling of is done.

Preferably, the geocell retaining wall is a gravity-type retaining wall formed by connecting two or more unit geocell retaining walls stacked at different heights, and the column elements are separately installed for each unit geocell retaining wall.

Preferably, the pillar element is composed of two or more unit pillar elements coupled along the longitudinal direction, the unit pillar element is manufactured to a preset height, and a protrusion is formed on one end surface and a groove into which the protrusion is inserted and coupled to the other end surface. It is configured so that the portion is formed.

Preferably, the inside of the column element is provided with reinforcing bars inserted and disposed along the vertical direction, the lower portion of the column element is provided with a steel pile or steel pipe drilled into the lower ground, and the reinforcing bar is the steel pile or It is fixedly coupled to the steel pipe.

Preferably, two or more of the column elements are installed at intervals along the transverse direction, transverse reinforcing bars penetrating the two or more column elements in the transverse direction are installed, and a steel pile or steel pipe drilled into the lower ground is provided And, the transverse reinforcing bar is coupled through the steel pile or steel pipe.

Preferably, two or more of the column elements are installed at intervals along the transverse direction, and a reinforcing bar inserted and disposed along the vertical direction is provided inside the column element, and is drilled into the lower ground, and the inside of the column element A steel pile having at least a portion inserted in the vertical direction is provided, and a transverse reinforcing bar penetrating the two or more column elements in a transverse direction is combined with at least one of the reinforcing bar and the steel pile.

Preferably, the column element is a tubular member, and the inner space is filled with aggregate, and a drain board or bundle pipe inserted through the incised side portion of the column element is used to connect some unit cells of the upper geocell and the lower geocell. It is arranged between some unit cells of the cells so that moisture stored inside the column elements can be supplied to the geocell retaining wall through the drain board or the bundle pipe.

Preferably, the pillar element is a tubular member capable of filling the internal space with a filling material, and has reinforcing bars inserted and arranged along the vertical direction inside the pillar element, and on the rear surface of the geocell retaining wall The rear end extends to the side of the located soil and passes through the column element to receive a rearward tensile force from a civil engineering reinforcing bar coupled to the reinforcing bar in the inner space of the column element.

Preferably, two or more of the pillar elements are installed at intervals along the transverse direction, transverse reinforcing bars penetrating the two or more pillar elements in the transverse direction are installed, and the rear end toward the soil side located on the rear surface of the geocell retaining wall The transverse reinforcing bar is coupled to the extending civil reinforcing material, and a tensile force toward the rear is provided by the civil reinforcing material.

Preferably, a fixing bar is installed in a hole drilled in a civil engineering slope by grouting and has one end exposed to the outside of the hole, and the pillar element is provided with a rearward tensile force based on the fixing bar .

Preferably, two or more of the pillar elements are installed at intervals along the transverse direction, fixed by grouting to a hole drilled in a civil slope, and a fixing bar having one end exposed to the outside of the hole is installed, wherein the At least a portion of the transverse reinforcing bars installed by penetrating two or more column elements in the transverse direction is provided with a rearward tensile force based on the fixing bar.

Preferably, a civil reinforcing member is installed that is partly buried in the soil located on the back side of the geocell retaining wall and receives a tensile force toward the rear based on the soil pressure and frictional force of the soil, and a part of the front side of the civil engineering reinforcing member is vertically It is installed to be located in the middle of a plurality of stacked geocells.

Preferably, the civil engineering reinforcing material is a belt-shaped reinforcing material, and a block-shaped resistor is placed on top of a unit cell of a geocell filled with soil inside, and the band-shaped reinforcing member surrounds the front side and left and right sides of the block-shaped resistor. It includes a bending part and an expanding part that extends laterally toward the civil engineering slope to form an unfolded state, and the bending part is installed to be located in the middle of a plurality of vertically stacked geocells.

Preferably, the reinforcement material for civil engineering is a geogrid composed of a grid-shaped net, a block-shaped resistor is placed on top of a unit cell of a geocell filled with soil inside, and the geogrid is composed of a plurality of vertically stacked geocells. It is installed to be positioned in the middle, and is bent and deformed to cover the front, upper, and rear sides of the block-shaped resistor to cover the block-shaped resistor.

Preferably, one pillar element is configured to be installed over the entire vertical height of the geocell retaining wall by vertically penetrating a preset unit cell location of an upper geocell and a preset unit cell location of a lower geocell.

Preferably, the geocells constituting each layer are stacked in a horizontally spread state, and the geocell retaining wall configured by stacking the geocells constituting each layer up and down has a slope, respectively In the geocell layer of the unit cells located at the frontmost part, at least one of soil and aggregate is buried therein, and the upper surface is exposed in a stepwise manner.

The present invention as described above is composed of vertically stacking geocells formed by combining a plurality of unit cells, and uses pillar elements installed in the vertical direction through some unit cells of the upper geocell and some unit cells of the lower geocell. There is an advantage in improving the stability and robustness of the retaining wall by providing a structure in which the geocell retaining wall is integrated up, down, left and right, thereby strengthening resistance to lateral earth pressure.

In addition, the present invention can reduce the length of the civil reinforcing material used in the geocell retaining wall to a minimum length, thereby minimizing environmental damage caused by the development of urban areas and mountainous areas, and preventing interference with underground structures at the back of the soil filling section and land boundary It has the advantage of minimizing the case of encroaching on the site boundary.

In addition, the present invention has the advantage of securing the structural stability of the retaining wall even if the height of the retaining wall is increased according to the installation environment.

In addition, the present invention has the advantage of securing the structural stability of the retaining wall and reducing the cutting width of the original ground even when the inclination angle of the retaining wall is installed close to vertical according to the installation conditions.

1 is a schematic diagram in the side direction of a retaining wall structure according to an embodiment of the present invention;

2a and 2b are a schematic plan view and perspective view schematic diagram of a retaining wall structure according to an embodiment of the present invention;

3a and 3b are a planar and perspective view schematic diagram of a retaining wall structure according to an embodiment of the present invention;

4a, 4b, and 4c are planar, perspective, and lateral schematic views of a retaining wall structure according to an embodiment of the present invention;

4D and 4E are schematic diagrams in a perspective view direction and a schematic diagram in a side direction of a retaining wall structure according to an embodiment of the present invention;

4F is a cross-sectional schematic diagram showing an installation state of a block-shaped resistor according to an embodiment of the present invention;

Figure 4g is a schematic cross-sectional view showing the installation state of the geogrid according to an embodiment of the present invention;

5A and 5B are a schematic plan view and a side view schematic diagram of a retaining wall structure according to an embodiment of the present invention;

5c and 5d are a perspective view direction schematic diagram and a cross-sectional direction schematic diagram showing an installation state of a block-shaped resistor according to an embodiment of the present invention;

6A and 6B are schematic diagrams in a plane direction, a side view and a perspective view of a retaining wall structure according to an embodiment of the present invention;

7A and 7B are a schematic plan view and perspective view schematic diagram of a retaining wall structure according to an embodiment of the present invention;

7C is a perspective view direction schematic diagram of a support plate according to an embodiment of the present invention;

7d is a perspective view direction schematic diagram of a coupler according to an embodiment of the present invention;

8a and 8b are a schematic plan view and perspective view schematic diagram of a retaining wall structure according to an embodiment of the present invention;

9a and 9b are a schematic plan view and perspective view schematic diagram of a retaining wall structure according to an embodiment of the present invention;

9c and 9d are schematic diagrams of a retaining wall structure according to an embodiment of the present invention in a plane direction, a side view and a perspective view;

10A and 10B are a schematic plan view and a side view schematic diagram of a retaining wall structure according to an embodiment of the present invention;

11a and 11b are planar and lateral schematic views of a retaining wall structure according to an embodiment of the present invention;

12a, 12b and 12c are schematic views of the side direction of the retaining wall structure according to an embodiment of the present invention;

13a and 13b are a schematic planar view, a schematic side view and a side view of a coupled state of a pillar element according to an embodiment of the present invention;

14a, 14b, 14c, and 14d are schematic diagrams in a plane direction, a schematic diagram in a plan direction, a schematic diagram in a side direction, and a coupled state diagram of column elements of a retaining wall structure according to an embodiment of the present invention;

15a, 15b, and 15c are schematic diagrams in a plane direction, a schematic side view, and a perspective view of a retaining wall structure according to an embodiment of the present invention;

16 is a schematic view showing various embodiments of a pillar element according to an embodiment of the present invention.

The present invention may be embodied in other various forms without departing from its technical spirit or essential characteristics. Therefore, the embodiments of the present invention are mere examples in all respects and should not be construed in a limited manner.

The terms first, second, etc. are used only for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but other components may exist in the middle.

Singular expressions used in this application include plural expressions unless the context clearly dictates otherwise. In this application, terms such as "comprise" or "have" or "have" are intended to express that the components described in the specification or a combination thereof exist, but the possibility that other components or features may exist or be added. It is not precluded.

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

1 is a schematic diagram showing a side direction of a retaining wall structure according to an embodiment of the present invention, and FIG. 16 is a schematic diagram showing various embodiments of a column element according to an embodiment of the present invention.

The retaining wall structure according to this embodiment strengthens the resistance against earth pressure in the lateral direction (in particular, the front and rear direction) by using the pillar elements 4 installed in the vertical direction through the plurality of geocells 10 stacked vertically. This improves the stability and robustness of the retaining wall. A plurality of geocells 10 are stacked with an inclination as illustrated in FIG. 1, and the pillar elements 4 correspondingly have the same or similar inclination as the geocell 10, and the plurality of geocells 10 It is inserted through and installed. Stacking with an inclination refers to a state in which the geocell 10 of the lower layer is installed so as to protrude more forward than the geocell 10 of the layer immediately above it.

To this end, the retaining wall structure according to this embodiment includes a geocell retaining wall 2 and one or more pillar elements 4.

The geocell retaining wall 2 is constructed by stacking a geocell 10 composed of a plurality of unit cells 12 in a vertical direction (U-D) on the front (F) side of a civil engineering slope 102, The inside of the cell 10 is filled with soil (S) and installed. For example, sandy soil of good quality may be used as the soil S inside the geocell 10, and crushed stone aggregate may be filled together or instead. In the case of filling the crushed stone aggregate, the horizontal resistance is higher than that of general soil.

As an example, in the geocell retaining wall 2, as shown in FIG. 1, two or three unit cells 12 are arranged along the front-back direction in one layer of the geocell 10, and a number of them along the left-right direction It has a form in which the number of unit cells 12 are arranged. The number of unit cells 12 in the forward and backward directions or in the left and right directions to form one layer of geocells 10 can be changed.

The civil engineering slope 102 may be an embankment surface or a cut surface. When the civil engineering slope 102 is a cut surface, the geocell retaining wall 2 may be installed with the nonwoven fabric covering the cut surface, and soil backfilling may be performed.

The geocell 10 may be, for example, one having a thickness of 10 mm or more and a height of about 150 to 300 mm. For example, in a state in which three unit cells 12 are spread forward and backward, one unit cell 12 may have a size of about 200 to 300 mm in a horizontal direction and about 200 to 300 mm in a front and rear direction.

Referring to FIG. 2B together, one or more pillar elements 4 pass through some unit cells 12 of the upper geocell 10' and some unit cells 12 of the lower geocell 10'' up and down ( U-D) is installed along the direction. Preferably, the column element 4 is installed over the entire vertical height of the geocell retaining wall 2. Preferably, one pillar element (4) vertically penetrates the preset unit cell location of the upper geocell (10') and the preset unit cell location of the lower geocell (10'') to form the geocell retaining wall (2). ) is configured to be installed over the entire vertical height of the

To this end, the geocell 10 is stacked in a state in which the geocell 10 is spread in the transverse direction (horizontal direction) on the front side of the civil engineering slope 102, and the location of the unit cell 12 preset in the state in which the geocell 10 is stacked is Install the pillar element 4 through the top and bottom. The unit cell 12 in which the column element 4 is not installed is filled with soil S, and the space between the outer surface of the column element 4 and the inner surface of the inserted unit cell 12 is also filled with soil S. . At the time of soil filling, manpower compaction can be performed by using a surface leveling tool, a roller, and a ramma. As the height of the geocell retaining wall (2) rises, soil (S') is also injected into the back space of the geocell (10) to backfill and compact. In addition, during the installation process of the geocell retaining wall 2, various civil reinforcing materials, which will be described later, are installed in preset positions according to each civil reinforcing material structure.

Preferably, the pillar element 4 is composed of a tubular member in which the inner space is filled with a filler material 4a. The cross section of the pillar element 4 is not limited to a specific cross section, but it is preferable to have a circular cross section in order to increase resistance to external pressure caused by earth pressure or internal pressure caused by the filling material 4a.

For example, the tubular member may be a perforated pipe. A perforated pipe is a plastic pipe with a diameter of 7 to 30 cm and has many holes on the side. It is generally used to promote drainage and ventilation after being wrapped with non-woven fabric or geotextile to prevent soil from entering the hole and buried in the soil. used Since the perforated pipe is light in weight, it is advantageous to insert and construct inside the geocell 10, and can provide sufficient rigidity so that the filling material 4a inside can maintain the column shape, and through small holes Since drainage is possible, it is suitable for application to the column element (4) of the retaining wall for vegetation.

For example, the filling material 4a may be at least one of soil and aggregate. Inside the column element (4) in the form of a tubular member, soil or aggregate forms a dense filling state due to its own weight, and by this filling state, the column element (4) has a load and a load similar to that of a column precast with concrete. have strength.

In the case of using soil or aggregate as the filling material (4a), soil or aggregate (crushed stone aggregate) procured directly from the site or externally procured in the internal space of the tubular member inserted into the geocell 10 The filling operation can be performed by inserting through the upper opening of the tubular member. In the case of installing one column element 4 by assembling several unit column elements of a pre-manufactured length in the vertical direction, soil or aggregate (crushed stone aggregate) may be introduced according to the height at which each unit column element is assembled. .

In the case of using sand or aggregate as the filling material 4a, there is an advantage in that the filling material 4a can be directly procured and used in the field. Soil and aggregate may be used together, and in this case, the aggregate is preferably included in a ratio of 30% or more based on the total content of soil and aggregate. In the case of using aggregate as the filling material 4a, it is possible to lower the level of leachate and groundwater in the rear part and provide a function of a drainage hole for infiltration water during the rainy season.

As another example, the filling material 4a may be at least one of concrete, cement grouting, and soil cement.

In the case of using concrete as the filling material (4a), concrete prepared in the form of ready-mixed concrete is poured into the interior space of the tubular member inserted into the geocell 10 through the upper opening of the tubular member Filling can be done in this way.

In the case of using concrete as the filling material 4a, it has the advantage of providing the same level of load and rigidity as the precast pillar after curing the concrete.

In this way, when the pillar element 4 is configured in a structure in which the inner space of the tubular member is filled with the filling material 4a, when inserting and constructing the inside of the geocell 10, a light weight tubular Since the work is performed in the form of a member, it is possible to secure much better workability than a structure using a heavy concrete precast column, and after installation, sufficient load and rigidity of the column can be secured by the filling material (4a) inside. Therefore, it can provide sufficient stability and solidity of the retaining wall.

However, it is of course possible to use a column filled with the inside (eg, a precast column) if only the site constructability is secured smoothly.

(a) of FIG. 16 illustrates a case in which the filling material 4a is at least one of soil, concrete, cement grouting, and soil cement, and (b) of FIG. 16 illustrates a case in which the filling material 4a is an aggregate. exemplify

Preferably, a reinforcing bar 50 may be provided inside the pillar element 4 and inserted along the up-and-down (U-D) direction. 16(c) illustrates a case in which the reinforcing bar 50 is provided inside the column element 4.

The reinforcing bar 50 may be inserted and disposed inside the column element 4 in the form of a tubular member, and the inner space surrounding the reinforcing bar 50 may be filled with a filling material 4a.

When the reinforcing bar 50 is provided, there is an advantage in further strengthening the rigidity of the column element 4.

On the other hand, the pillar element 4 may be formed with cut side portions 4s or 4ps. 16(d) illustrates a case in which side portions 4s cut along the entire outer circumferential surface of the pillar element are formed, and FIG. exemplify The incision length of the incised side portion 4ps may be varied as needed.

As will be described later, the side portion 4ps cut along a portion of the outer circumferential surface of the column element 4 has a steel plate reinforcement 430, a rear reinforcing bar 330, a drain board or a bundle pipe 70 installed through, or a geogrid ( 130) may be installed by passing in the front and rear directions.

As will be described later, the geogrid 130 can be installed through the front and rear directions on the side portions 4s cut along the entire outer circumferential surface of the pillar element 4 .

For example, the incised side portion 4s or 4ps may be formed using a cutter or the like at a construction site.

On the other hand, the upper layer of the plurality of geocells 10 in which the strip-shaped reinforcement 30, the geogrid 130, the steel plate reinforcement 430, the rear reinforcement 330, the drain board or the bundle pipe 70 are stacked vertically To enable insertion and installation between the cell 10 'and the adjacent lower geocell 10'', the incised side portion 4s or 4ps of the pillar element 4 is a plurality of geocells 10 stacked vertically It is preferable to be formed according to the interface position of the upper geocell 10' and the lower geocell 10'' adjacent to the upper geocell 10'. In addition, in order not to reduce the rigidity of the column element 4, the incised side portions 4s or 4ps of the column element 4 correspond to the height of two or more layers of the plurality of geocells 10 stacked vertically. It is preferable to be formed to have a vertical gap. When two or more pillar elements 4 are installed, the heights of the incised side parts 4s or 4ps of the pillar elements 4 are offset from each other in consideration of the type and installation state of the civil reinforcing material for each pillar element 4 You may.

Reference numeral 4h in FIG. 16(e) denotes a through hole formed in the pillar element 4.

As will be described later, a fixing rod 40 or a transverse reinforcing bar 60 may be installed through the through hole 4h formed in the pillar element 4 .

For example, the through hole 4h may be formed using a drill or the like at a construction site.

The non-explained code S' is backfill soil located on the back of the geocell retaining wall (2), and the code S'' is backfill rubble.

In each geocell 10 layer, the upper surface of the unit cells 12 located at the frontmost part is exposed in a stepped state with soil buried therein. When plants are vegetated on the exposed surface of each unit cell 12 and a period of several months elapses, the stems and leaves of the plants grow and cover the entire retaining wall composed of the geocell 10 with plants, which is also aesthetically pleasing. It can form a good vegetation retaining wall.

2A and 2B are a schematic plan view and a perspective view view of a retaining wall structure according to an embodiment of the present invention.

In the case of the present embodiment, the pillar element 4 is partially embedded in the soil S' located on the rear side of the geocell retaining wall 2 to protect the rear B from the civil engineering reinforcing material that receives the earth pressure SP and frictional force. A tensile force (TF) is provided. Tensile force (TF) can also be understood as the pull-out resistance of civil engineering stiffeners from another point of view.

2a and 2b, the civil engineering reinforcing material is a belt-shaped reinforcing material 30, and the belt-shaped reinforcing material 30 surrounds at least a part (front side part) of the pillar element 4, and the pillar element Combined with (4).

The strip-shaped reinforcing material 30 is generally manufactured by double-injecting a fiber core material coated with a synthetic resin covering material.

3A and 3B are schematic views of a planar direction and a perspective view of a retaining wall structure according to an embodiment of the present invention.

Even in the case of this embodiment, the pillar element 4 is partially embedded in the soil S' located on the rear side of the geocell retaining wall 2, and the rear (B) is provided with a tensile force (TF) toward

In this embodiment, two or more of the pillar elements 4 are installed at intervals along the transverse direction L-R. The installation interval and number of pillar elements 4 may be appropriately set in consideration of the overall height and size of the retaining wall, and may be installed at intervals of 3 to 4 m, for example.

In this embodiment, the civil engineering reinforcing material is a belt-shaped reinforcing material 30, and at least a portion (front side portion) of the transverse reinforcing bar 60 installed by penetrating the two or more column elements 4 in the transverse direction (L-R) The band-shaped reinforcing material 30 is configured to be coupled in a wrapping form.

Preferably, when the reinforcing bar 50 is inserted and disposed along the vertical (U-D) direction inside the column element 4, the transverse reinforcing bar 60 is positioned on the front side of the reinforcing bar 50, and reinforcing After bonding the contact point between the reinforcing bar 50 and the transverse reinforcing bar 60 through welding or a fixing means (eg, wire, connector), the inside of the column element 4 can be filled with the filling material 4a.

4a, 4b and 4c are planar, perspective and side view schematics of a retaining wall structure according to an embodiment of the present invention, and FIGS. 4d and 4e are perspective view schematics of a retaining wall structure according to an embodiment of the present invention And a schematic diagram in the side direction, Figure 4f is a cross-sectional schematic diagram showing the installation state of the block-shaped resistor according to an embodiment of the present invention, Figure 4g is a cross-sectional schematic diagram showing the installation state of the geogrid according to an embodiment of the present invention.

In this embodiment, the reinforcing material for civil engineering is a geogrid 130 configured in the form of a lattice net. The geogrid 300 can be classified into a plastic geogrid and a textile geogrid depending on the manufacturing method and material. The plastic geogrid is manufactured by passing a polymer sheet that has passed through an extruder through a roller, punching holes in a lattice-like grid shape, and then stretching the polymer sheet uniaxially or biaxially. The textile geogrid is manufactured by supplying high-strength fibers in warp and weft directions, respectively, to form a lattice-shaped fabric, and coating with polyvinyl chloride, bitumen, acrylic, latex, and rubber-based resin. In this embodiment, the type of geogrid 300 is not limited.

In this embodiment, the geogrid 130 is installed in a form passing through the upper and lower (U-D) separated parts (cut side parts, 4s or 4ps) of the pillar element 4.

For example, the pillar element 4 is a tubular member in which rebar 50 is inserted and disposed along the vertical (U-D) direction and the internal space is filled with a filler 4a, and the reinforcement The reinforcing bars 50 are installed to pass through any one grid constituting the geogrid 130 (see (a) in FIG. 4g).

Through this configuration, the pillar element 4 is engaged with the geogrid 130 through the reinforcing bars 50 and coupled in a state in which friction or bonding force is applied through the filler 4a, the geogrid 130 It receives a tensile force (TF) toward the rear (B) from

As another example, the pillar element 4 is a tubular member in which the inner space is filled with a filler material 4a, and the aggregate constituting the filler material 4a is a lattice constituting the geogrid 130 It is installed so that the aggregate (or part of the aggregate) can be caught on the grid by at least partially penetrating the grid (see (b) of FIG. 4g).

Through this configuration, the pillar element 4 is engaged with the lattice portion of the geogrid 130 through the filler material 4a containing aggregate and coupled in a state in which frictional force or bonding force is applied through the filler material 4a, A tensile force (TF) toward the rear (B) is provided from the geogrid (130).

In the case of the embodiment of Figures 4a, 4b and 4c, one geogrid 130 is folded up and down from the rear and arranged in the form of an upper geogrid (130U) and a lower geogrid (130D), using a fixing rod 40 and install it fixedly.

To this end, two or more fixing rods 40 and 40' are fixed to a hole 104 drilled in a civil engineering slope 102 by grouting 106 and one end exposed to the outside of the hole 104 is installed. do. For example, perforation (穿孔) can be made while maintaining an angle of about 0 to 20 degrees with a crawler drill (crawler drill) the position selected by the perforation position survey.

A fixing rod 40 is inserted into the drilled hole 104 and fixed with grouting 106. At this time, one end of the fixing bar 40 is fixed so as to be exposed to the outside of the hole 104 . For the grouting 106, cement milk grouting may be performed from the tip using a grouting hose.

In the geogrid 130, the rear end of the expanded part of the upper geogrid 130U and the rear end of the expanded part of the lower geogrid 130D installed at different up and down (U-D) positions are integrally connected to each other through a connection part 130C.

One end of the support rod 150 installed across the front (F) side of the connecting portion 130C is coupled to one fixing rod 40, and the other end of the support rod 150 is another fixing rod (40 '), the expansion part of the upper geogrid (130U) and the expansion part of the lower geogrid (130D) through the support bar 150, the tensile force (TF) from the fixing rods (40, 40') be delivered

For the coupling, a through hole 40h is provided in the exposed end 40a of the fixing rod 40, and one end 150a of the support rod 150 has one fixing rod 40'. ), and is inserted into and coupled to the through hole 40h provided in the support bar 150, and the other end 150a of the support bar 150 is inserted into and coupled to the through hole 40h provided in another fixing bar 40.

4d and 4e, the geogrid 130 is installed in the form of increasing lateral resistance by using the block-shaped resistor 20.

To this end, a block-shaped resistor 20 is placed on top of the unit cell 12 of the geocell 10 filled with soil (S).

The geogrid 130 is installed to be positioned in the middle of the plurality of geocells 10 stacked vertically (U-D), and the front (F) side, upper (U) side and rear ( It is bent and deformed in the form of wrapping the B) side and installed in the form of covering the block-shaped resistor 20 .

Referring to FIG. 4F, the geogrid 130 is a cover covering the block-shaped resistor 20 in a form surrounding at least a portion of the front side 20f and the upper side 20u of the block-shaped resistor 20 It includes a portion 30 'and an expanding portion 30'' extending in the transverse direction toward the civil engineering slope 102 to form an unfolded state. The cover part 30' may be formed by bending deformation of the geogrid 130.

For example, the block-shaped resistor 20 may be stacked on top of the soil layer Sd of the lower geocell 10 and located inside the soil layer Su of the upper geocell 10, as shown in FIG. 4F. As a modified example, a part of the block-shaped resistor 20 may be partially positioned inside the soil layer Sd of the lower geocell 10.

The geogrid 130 transmits the tensile force TF generated based on the earth pressure SP applied from above to the mesh area to the block-shaped resistor 20. The tensile force (TF) generated based on the earth pressure (SP) can be regarded as a kind of frictional resistance force and/or tensile resistance force.

Through this structure, in the retaining wall structure of this embodiment, the block-shaped resistor 20 receives the tensile force TF from the geogrid 130, and the block-shaped resistor 20 is stacked on top and bottom of the soil (S) The lateral movement of the filled geocell 10 is prevented through the friction resistance of the block-shaped resistor 20.

6A and 6B are a schematic plan view, a side view schematic view, and a perspective view view of a retaining wall structure according to an embodiment of the present invention.

In this embodiment, the reinforcing material for civil engineering is a reinforcing bar grid 230 in which reinforcing bars are arranged in a lattice shape and combined.

In this embodiment, the front end of the reinforcing bar grid 230 is coupled to the transverse reinforcing bars 60 installed through two or more column elements 4 installed at intervals along the transverse direction L-R in the transverse direction L-R It is composed so that For example, the front end of the reinforcing bar grid 230 may be formed bent in a "c" shape as shown in (b) of FIG.

7a and 7b are a planar and perspective view schematic diagram of a retaining wall structure according to an embodiment of the present invention, FIG. 7c is a perspective view direction schematic diagram of a support plate according to an embodiment of the present invention, and FIG. It is a schematic diagram of the perspective view direction of the coupler according to.

In the case of this embodiment, the pillar element 4 is a tubular member capable of filling the internal space with a filling material 4a.

In this embodiment, a fixing rod 40 is fixed to a hole 104 drilled in a civil engineering slope 102 by grouting 106 and one end exposed to the outside of the hole 104 is installed. One end (40a) of the fixing bar 40 inserted through the pillar element 4 is configured to be fastened to the support plate 120 in the inner space of the pillar element 4.

For example, the support plate 120 is disposed in a forward facing state in the pillar element 4 and is buried by the filling material 4a, preferably, to the reinforcing bar 50 installed in the pillar element 4. It is installed to achieve an engaging state so as to receive resistance against backward movement by The support plate 120 may be formed by processing a metal plate.

The fixing bar 40 is fixed to a hole 104 drilled in a civil engineering slope 102 by grouting 106, and one end is exposed to the outside of the hole 104. For example, the fixing bar 40 may be a conventional reinforcing bar or screw-type reinforcing bar having a diameter of 25 to 35 mm. The hole 104 may be formed to have an inner diameter of 75 to 105 mm, for example. A spacer (not shown) may be inserted in the middle of the fixing bar 40 to maintain a gap with the inner surface of the hole 104 .

Fastening of one end of the fixing rod 40 and the support plate 120 is a state in which one end of the fixing rod 40 having a bolt portion passes through a through hole (not shown) of the support plate 120. It is made by screwing with the fastening nut 125 located in the front.

A plurality of fastening nuts 125 may be coupled or double coupled to the front and rear of the support plate 120 .

As a modification, the fixing bar 40 is configured by connecting two or more bar elements 40 and 40' through a coupler 42, so that the length can be extended and/or the angle adjusted.

The coupler 42 is fastened with the first fastening means 423 fastened to the other end 40a of one fixing rod 40 and one end 40a' of another fixing rod 40'. The second fastening means 424 is integrally formed to interconnect one fixing bar 40 and another fixing bar 40 '. The coupler 42 may be made of a metal material.

The first fastening means 423 and the second fastening means 424 of the coupler 42 each include a nut part 425 . The central axis of the nut portion 425 of the first fastening means 423 and the central axis of the nut portion 425 of the second fastening means 424 are integrally formed with an inclination angle therebetween.

Through the above configuration, the support plate 120 receives the bearing force from the fixing bar 40 fixed to the civil slope 102, so that the support plate 120 supports the pillar element 4 and the geocell 10 ) can be prevented from transverse movement (forward shear movement).

8A and 8B are planar and perspective view schematic views of a retaining wall structure according to an embodiment of the present invention.

In the case of this embodiment, the pillar element 4 extends toward the soil S' located on the rear surface of the geocell retaining wall 2 and surrounds at least a portion (front side portion) of the column element 4 A tensile force (TF) toward the rear (B) is provided by the reinforcing bars 330 for the rear coupled to the pillar element 4. For example, a deformed reinforcing bar or a circular reinforcing bar may be used as the rear reinforcing bar 330.

Rebar 330 for the rear may be provided with a tensile force (TF) toward the rear (B) through the following structure.

For example, the support plate 120 is fastened to the rear end of the reinforcing bar 330 for the rear, and the support plate 120 is located on the back of the geocell retaining wall 2. Configured to be buried in soil S' do. Since the fastening of the support plate 120 may be performed in the same/similar form to that of the embodiment of FIG. 7C, redundant description will be omitted.

As a modified example, a fixing bar 40 is fixed to a hole 104 drilled in a civil engineering slope 102 by grouting 106 and one end exposed to the outside of the hole 104 is installed, and the rear The rear end of the reinforcing bar 330 is connected to the fixing bar 40 through a coupler 42. Since the connection of the fixing bar 40 through the coupler 42 may be performed in the same/similar form to that of the embodiment of FIG. 7d, redundant description will be omitted.

9A and 9B are schematic views of a planar direction and a perspective view of a retaining wall structure according to an embodiment of the present invention.

In the case of the present embodiment, the pillar element 4 is a tubular member capable of filling the inner space with a filler 4a, and is inserted and disposed inside the pillar element 4 along the vertical (U-D) direction. Rebar 50 is provided.

In addition, the rear end of the pillar element 4 extends toward the soil S' located on the rear surface of the geocell retaining wall 2 and penetrates the pillar element 4 to The tensile force TF toward the rear (B) is provided by the steel plate reinforcement 430 in the form of a band to which the front end is coupled to the reinforcing bar 50. For example, the reinforcing bar 50 may be coupled through a through hole (not shown) formed through the front end of the steel plate reinforcement 430 in the vertical direction.

For example, the steel plate reinforcement 430 may have a width of 5 to 7 cm and a thickness of 4 to 5 mm, and may be composed of a galvanized steel plate reinforcement.

The steel plate reinforcement 430 is installed so that the surface corresponding to the width of 5 ~ 7 cm faces the upper and lower sides to receive earth pressure and frictional resistance from the soil S 'located on the back of the geocell retaining wall 2 desirable.

9c and 9d are a schematic plan view, a side view schematic view, and a perspective view view of a retaining wall structure according to an embodiment of the present invention.

In the case of this embodiment, two or more of the pillar elements 4 are installed at intervals along the transverse direction (L-R).

In addition, transverse reinforcing bars 60 penetrating the two or more pillar elements 4 in the transverse direction (L-R) are installed.

In this embodiment, the transverse reinforcement 60 is coupled to the front end of the band-shaped steel plate reinforcement 430 whose rear end extends toward the soil S' located on the back side of the geocell retaining wall 2, A tensile force (TF) toward the rear (B) is provided by the steel plate reinforcement 430 .

For example, the front end of the steel plate reinforcement 430 may be formed in a "c" shape as shown in (b) of FIG. 430), the front end body and the bent portion may be fastened with bolts BT.

10A and 10B are planar and lateral schematic views of a retaining wall structure according to an embodiment of the present invention.

In the case of this embodiment, the geocell retaining wall 2 is a first geocell retaining wall 2-1 located in front (F) of the civil slope 102 on one side of the soil stack ST and the soil stack It includes a second geocell retaining wall 2-2 located in front F of the civil engineering slope 102 on the other side of the body ST.

The pillar element 4 penetrates some unit cells 12 of the upper geocell 10 and some unit cells 12 of the lower geocell 10 of the first geocell retaining wall 2-1 The first pillar element 4-1 installed along the vertical (U-D) direction, and some unit cells 12 of the upper geocell 10 of the second geocell retaining wall 2-2 and the lower geocell (10) includes second pillar elements 4-2 installed along the vertical (U-D) direction through some unit cells 12.

Through this configuration, the belt-shaped reinforcing member 30 coupled to the first pillar element 4-1 in a form surrounding at least a part (a part in the F direction) of the first pillar element 4-1 is the soil laminate. Passing through (ST) and coupled to the second pillar element 4-2 in a form surrounding at least a portion (B-direction side portion) of the second pillar element 4-2, the first pillar element 4 -1) and the second pillar element 4-2 receive a tensile force TF toward the soil stack ST.

This configuration is good for installing the geocell retaining wall 2 symmetrically on both sides of the soil stack ST.

11A and 11B are planar and lateral schematic views of a retaining wall structure according to an embodiment of the present invention.

In the case of this embodiment, two or more of the pillar elements 4 are installed at intervals along the transverse direction (L-R), and transverse reinforcing bars 60 penetrating the two or more pillar elements 4 in the transverse direction (L-R) ) is installed.

In addition, auxiliary transverse reinforcing bars 160 disposed in the transverse direction (L-R) at another angle with the transverse reinforcing bars 60 are coupled to the transverse reinforcing bars 60.

The transverse reinforcing bars 60 and the auxiliary transverse reinforcing bars 160 are mutually coupled through welding or the like to form a polygon based on a plane shape, as illustrated in FIG. 11A, and the upper layer of the plurality of geocells 10 stacked vertically It may be inserted and installed between the geocell 10' and the adjacent lower geocell 10''.

Through this configuration, at least one of the transverse reinforcing bars 60 and the auxiliary transverse reinforcing bars 160 is fixed to the hole 104 drilled in the civil engineering slope 102 by grouting 106, and the hole (104) is coupled to the fixing bar 40, one end of which is exposed to the outside.

In the case of Figure 11a, the support plate 120 is fixedly installed to the auxiliary transverse reinforcing bar 160 located at the frontmost side, and the auxiliary transverse reinforcing bar 160 is fixed to the bar 40 through the support plate 120 combined installed. The installation position of the support plate 120 can be changed differently from FIG. 11A.

Fastening of one end of the fixing rod 40 and the support plate 120 is a state in which one end of the fixing rod 40 having a bolt portion passes through a through hole (not shown) of the support plate 120. It is made by screwing with the fastening nut 125 located at the front in (see FIG. 7c).

Preferably, the retaining wall structure of this embodiment is inserted along the up-and-down (U-D) direction into the unit cell 12 at a position overlapping with at least one of the transverse reinforcement 60 and the auxiliary transverse reinforcement 160 It has an auxiliary rebar 250 disposed thereon.

The auxiliary reinforcing bars 250 are combined with at least one of the transverse reinforcing bars 60 and the auxiliary transverse reinforcing bars 160.

In addition, the inside of the unit cell 12 in which the auxiliary reinforcing bars 250 are inserted and disposed along the vertical (U-D) direction is filled with a concrete filling material 4a'. For example, the auxiliary reinforcing bars 250 are installed in the vertical direction over the geocell 10 of about 2 to 4 floors, and the concrete filler 4a' is the geocell 10 in which the auxiliary reinforcing bars 250 are installed. ) is poured and cured inside the unit cell 12 of the layer to provide a role of a concrete reinforcement column having rigidity.

The polygonal structure formed by combining the transverse reinforcing bars 60 and the auxiliary transverse reinforcing bars 160 may be provided with a plurality of them at vertical intervals and coupled vertically through the auxiliary reinforcing bars 250, as illustrated in FIG. 11B. .

When this configuration is taken, a horizontal structure is formed in which the transverse reinforcing bars 60 and the auxiliary transverse reinforcing bars 160 are combined and disposed while forming a polygon horizontally, and the plurality of auxiliary reinforcing bars 250 are arranged with vertical intervals. In a state in which a three-dimensional structure is formed by combining the horizontal structures of the up and down, the auxiliary reinforcing bars 250 are inserted and arranged along the up and down (U-D) direction to the inside of the unit cell 12 with a concrete filler (4a') to create a space of the interior space. Filling is done, and at least one of the transverse reinforcing bars 60 and the auxiliary transverse reinforcing bars 160 is coupled to the fixing bar 40 to receive a supporting force toward the civil slope 102, so that the entire structure of the retaining wall It can be constructed robustly and stably. The three-dimensional structure may be set to an appropriate position and number in consideration of the height and width of the geocell retaining wall 2 and installed to constitute a part of the geocell retaining wall 2.

As a modified example, at least one of cement grouting and soil cement may be used as the filling material 4a' instead of concrete.

12a, 12b and 12c are schematic side views of a retaining wall structure according to an embodiment of the present invention.

In this embodiment, the geocell retaining wall 2 is a gravity-type retaining wall formed by connecting two or more unit geocell retaining walls 2 stacked at different heights. 12a, 12b and 12c show a total of 4 geocell retaining walls (2 ) is installed.

The gravity type retaining wall is a retaining wall that is installed when a sufficient space for installing civil reinforcing materials is not secured between the rear side of the retaining wall and the civil engineering slope 102, and a plurality of geocell retaining walls (2) having different heights It is a retaining wall of the method of installing sequentially according to the front and rear positions.

The distributed installation structure of the geocell retaining wall 2 may be modified in various ways as shown in FIG. 12a, FIG. 12b or FIG. 12c. 12b or 12c shows a structure in which a part of the geocell retaining wall 2 is removed and a general soil layer is installed between the 1-row geocell retaining wall 2-A and the 4-column geocell retaining wall 2-D, 12c shows a configuration in which an intermediate geocell layer (not shown) is installed in the middle of a general soil layer. In the embodiment of FIG. 12a, FIG. 12b or FIG. 12c, it is also possible to install civil engineering reinforcing materials such as geogrids, belt-shaped reinforcing materials, steel plates, and reinforcing bars.

Referring to FIG. 12A, the geocell retaining wall (2-D) with the lowest height is installed at the rearmost side, and the geocell retaining walls (2-C, 2-B, and 2-A) with higher heights are installed toward the front. is installed to distribute and support the earth pressure applied from the civil engineering slope 102.

In the case of this embodiment, the pillar element 4 is separately installed for each unit geocell retaining wall 2, so that the earth pressure applied from the civil engineering slope 102 can be more firmly distributed and supported.

13a and 13b are a schematic plan view, a side view schematic diagram, and a side view schematic view of a coupled state of a pillar element according to an embodiment of the present invention.

In the case of this embodiment, the pillar element 4 is configured by combining two or more unit pillar elements 4u along the longitudinal direction.

Preferably, the unit pillar element 4u is manufactured with a preset height (eg, 200 to 300 mm) and diameter (eg, 200 to 300 mm), and a protrusion 4u-1 is formed on one end surface and the other end face It is configured to form a concave portion 4u-2 into which the protruding portion 4u-1 is inserted and coupled. The protrusion 4u-1 serves as a connecting pin and also serves as a shear key.

For example, the unit pillar element 4u may be manufactured in the form of a concrete structure having a circular cross-sectional shape, and may be manufactured by precasting. In addition, the unit pillar element 4u has a central through hole 4u-3 formed along the vertical direction at the center in order to insert a bar-shaped reinforcing member (not shown) through the center, and to provide an appropriate load condition. One or more auxiliary through holes 4u-4 having a smaller diameter may be formed around the hole 4u-3 along the vertical direction.

Through this configuration, as shown in FIG. 13B, two or more unit pillar elements 4u are vertically coupled along the longitudinal direction to form the pillar element 4.

The unit pillar element 4u can be used singly in combination or inserted inside a tubular member such as a perforated pipe and used in combination therein. When the unit pillar element 4u is inserted into the inside of the tubular member, the outer diameter of the unit pillar element 4u is slightly smaller than the inner diameter of the tubular member (75 to 85%). good if made

14a, 14b, 14c, and 14d are schematic diagrams in a plane direction, a schematic diagram in a plane direction, a schematic diagram in a lateral direction, and a coupled state diagram of column elements of a retaining wall structure according to an embodiment of the present invention.

In the case of this embodiment, the inside of the pillar element 4 is provided with a reinforcing bar 50 inserted and disposed along the vertical (U-D) direction.

At the bottom of the pillar element 4, a steel pile 350 or a steel pipe is provided with a hole drilled into the lower ground. The forced pile 350 may be used as an example of an H beam, but is not limited thereto. For example, the steel pile 350 or the steel pipe may be installed by drilling the lower ground where the geocell retaining wall 2 is installed, inserting it, and pouring ready-mixed concrete or grouting.

The reinforcing bar 50 is fixedly coupled to the steel pile 350 or the steel pipe. The fixed coupling of the reinforcing bar 50 to the steel pile 350 or the steel pipe may be performed using welding or a known mechanical coupling means (eg, connector).

In the case of taking this configuration, the column element 4 receives resistance to the transverse earth pressure by the reinforcing bar 50, and the reinforcing bar 50 has a bearing capacity based on the lower ground by the steel pile 350 or the steel pipe Therefore, the geocell retaining wall 2 can maintain a more robust and stable installation state.

As a modification, two or more of the pillar elements 4 are installed at intervals along the transverse direction (L-R), and transverse reinforcing bars 60 penetrating the two or more pillar elements 4 in the transverse direction (L-R) is installed

A steel pile 350 or a steel pipe drilled into the lower ground is provided, and the transverse reinforcing bar 60 is penetrated and coupled to the steel pile 350 or the steel pipe. For through insertion of the transverse reinforcement 60, the steel pile 350 or the steel pipe may form a through hole with a drill in the field. Transverse reinforcement 60 inserted through can be welded to the steel pile 350 or the steel pipe.

The transverse reinforcing bar 60 is located on the front side of the reinforcing bar 50, and the point of contact between the reinforcing bar 50 and the transverse reinforcing bar 60 is welded or coupled through a fixing means (eg, wire, connector) After that, it is possible to fill the inside of the pillar element 4 with a filling material 4a. Only one reinforcing bar 50 may be installed in one column element 4, or two or more may be installed as illustrated in FIG. 14B.

As another modification, two or more of the pillar elements 4 are installed at intervals along the transverse direction (L-R), and reinforcing bars inserted and disposed along the vertical (U-D) direction inside the pillar element 4 (50) is provided.

A steel pile 350 is provided by drilling into the lower ground and having at least a part inserted into the column element 4 along the up-and-down (U-D) direction.

Transverse reinforcing bars 60 penetrating the two or more column elements 4 in the transverse direction (L-R) are combined with at least one of the reinforcing bars 50 and the steel piles 350.

In the case of taking this configuration, since the plurality of pillar elements 4 are integrally coupled by the transverse reinforcing bars 60, the geocell retaining wall 2 can maintain a more robust and stable installation state.

15a, 15b and 15c are planar, lateral and perspective schematic views of a retaining wall structure according to an embodiment of the present invention.

In the case of this embodiment, the column element 4 is a tubular member, and the internal space is filled with aggregate.

The drain board or bundle pipe 70 installed through the incised side part (4s or 4ps) of the pillar element (4) is part of the upper geocell (10) and part of the unit cell (12) and the lower geocell (10) It is disposed between the unit cells 12.

The drain board is a known drainage system in which vacuum-formed high-density polystyrene and a special filter (non-woven fabric) are bonded, and installed on a retaining wall or structure to allow water to flow through a drainage pipe or pumping pipe. It can be cut to an appropriate size for use.

The bundle pipe is a drainage pipe that has many consecutive linear type catchments and drainage spaces, so there is no blockage and the effect of collecting and draining water is excellent. etc. The bundle pipe can be used by selecting an appropriate number of bundles and pipe diameter in consideration of the supplied flow rate and cutting to an appropriate length.

Two or more drain boards or bundle pipes 70 may be inserted and installed at one point of the incised side portion (4s or 4ps) of the pillar element 4, and when two or more are installed, they are arranged in different directions It is installed so that water can be distributed and supplied to the soil inside the geocell 10.

In the case of taking this configuration, rainwater or water supplied from the outside flows into the upper opening of the column element 4 through the water pipe 114 located at the rear of the upper side of the geocell retaining wall 2, and the inside of the column element 4 , and the water stored or flowing inside the pillar element 4 can be distributed and supplied to the middle of the geocell retaining wall 2 through the drain board or the bundle pipe 70. Through this water supply structure, plants planted on the front of the geocell retaining wall 2 can be smoothly supplied with water throughout the entire floor. Through-holes may be formed on mutually opposing sides of the water pipe 114 and/or the pillar element 4 so that water can be smoothly supplied from the water pipe 114 to the inside of the pillar element 4 .

As a modified example, it is also possible to use a non-woven fabric or non-woven perforated pipe instead of the drain board or the bundle pipe 70 .

Meanwhile, the above-described embodiments may be understood in terms of the following embodiments.

As a point of view of one embodiment, the pillar element 4 is a tubular member capable of filling the inner space with a filling material 4a, and a vertical (U-D) direction is formed inside the pillar element 4. It has a reinforcing bar 50 inserted and arranged along the geocell retaining wall 2, and the rear end extends toward the soil S' located on the rear side of the pillar element 4 through the pillar element 4. In the inner space, a tensile force (TF) toward the rear (B) is provided by the civil reinforcing material coupled to the reinforcing bar (50).

9a and 9b correspond to this embodiment as a case of using a steel plate reinforcement 430 as a civil engineering reinforcement. The rear reinforcing bars 330 illustrated in FIGS. 8A and 8B may also be installed in this embodiment (through the column element 4 and coupled to the reinforcing bar 50).

As a viewpoint of another embodiment, two or more of the pillar elements 4 are installed at intervals along the transverse direction (L-R), and the transverse direction penetrating the two or more pillar elements 4 in the transverse direction (L-R) Reinforcing bars 60 are installed, and the transverse reinforcing bars 60 are coupled to a civil reinforcing material whose rear end extends toward the soil S' located on the rear side of the geocell retaining wall 2, so that the rear ( A tensile force (TF) toward B) is provided.

3a and 3b show a case of using a belt-shaped reinforcing material 30 as a civil reinforcing material, FIGS. 6a and 6b show a case of using a reinforcing bar grid 230 as a civil reinforcing material, and FIGS. 9c and 9d show a steel plate reinforcement as a civil reinforcing material ( 430) can be seen as exemplified respectively.

As a point of view of another embodiment, a fixing bar 40 is fixed to a hole 104 drilled in a civil engineering slope 102 by grouting 106 and one end exposed to the outside of the hole 104 is installed. And, the pillar element 4 is provided with a tensile force (TF) toward the rear (B) based on the fixing bar (40).

4a, 4b and 4c, when the geogrid 130 is provided with a tensile force (TF) based on the fixing bar 40, FIGS. 7a and 7b show the support plate 120 for fixing the bar 40 When receiving a tensile force (TF) based on, Figures 8a and 8b, when the reinforcement for the rear 330 is provided with a tensile force (TF) based on the bar 40 for fixing, Figures 11a and 11b are transverse Directional reinforcing bars 60 or auxiliary transverse reinforcing bars 160 can be seen as exemplified when receiving a tensile force (TF) based on the fixing bar 40, respectively.

As a viewpoint of another embodiment, two or more of the pillar elements 4 are installed at intervals along the transverse direction (L-R), and grouting (106) in a hole (104) drilled in a civil engineering slope (102) ) and a fixing bar 40 having one end exposed to the outside of the hole 104 is installed, and the transverse reinforcing bar 60 installed by penetrating the two or more pillar elements 4 in the transverse direction (L-R) At least a portion is provided with a tensile force (TF) toward the rear (B) based on the fixing bar (40).

Figures 11a and 11b can be seen as an example of the case where the tensile force (TF) is provided based on the transverse reinforcement 60 and the fixing bar 40.

5A and 5B are planar and lateral schematic diagrams of a retaining wall structure according to an embodiment of the present invention, and FIGS. 5C and 5D are perspective and cross-sectional views showing the installation state of a block-shaped resistor according to an embodiment of the present invention. It is a schematic diagram of direction.

In the case of this embodiment, a part of the geocell retaining wall (2) is buried in the soil (S') located on the back side, and based on the soil pressure (SP) and the frictional force of the soil (S), the tensile force (TF) toward the rear (B) A reinforcement for civil engineering is installed, and a part of the front (F) side of the reinforcement for civil engineering is installed in the middle of the plurality of geocells 10 stacked vertically (U-D).

For example, the reinforcing material for civil engineering may be a belt-shaped reinforcing material 30 .

In this case, the block-shaped resistor 20 is placed on top of the unit cell 12 of the geocell 10 filled with soil (S).

In addition, the band-shaped reinforcing member 30 extends in the lateral direction (L-R) toward the bending portion 30a and the civil slope 102 forming a state of wrapping the front (F) side and left and right sides of the block-shaped resistor 20, It includes an expanding portion (30b) forming an unfolded state, and the bending portion is installed so as to be positioned in the middle of the plurality of geocells 10 stacked vertically (U-D).

The block-shaped resistor 20 is spread horizontally on the front side of the civil engineering slope 102 and is placed on top of the unit cell 12 of the geocell 10 filled with soil (S). For example, the block-shaped resistor 20 may be made of a concrete material or may be made of a rectangular parallelepiped block.

As shown in FIG. 5D, the block-shaped resistor 20 is stacked on top of the soil layer Sd of the lower geocell 10 and may be located inside the soil layer Su of the upper geocell 10. It may be located inside the soil layer (Sd) of the geocell (10).

The band-shaped reinforcing member 30 extends in the transverse direction toward the bending portion 30a and the civil slope 102 that surrounds the front side 20f and the left and right sides 20u of the block-shaped resistor 20. It includes an expanding part 30b forming a state, and is installed to be located in the middle of a plurality of geocells 10 stacked vertically.

Preferably, the band-shaped reinforcing member 30 is formed in a strip shape having a predetermined width w, and in the section forming the bending portion 30a, the front side 20f and the left and right sides 20u of the block-shaped resistor 20 ) to form a partially erect state to achieve a state of enclosing. Through this upright bending state, the contact area with respect to the block-shaped resistor 20 is widened as much as possible, and the mutually transmitted forces can be transmitted in a distributed form through the widest area as possible.

In addition, the band-shaped reinforcing member 30 maintains a lying state in the same direction as the ground so as to receive earth pressure (SP) applied from the top over a wide area as much as possible in the section constituting the expanding portion 30b.

Through this structure, in the retaining wall structure of this embodiment, the block-shaped resistor 20 receives the tensile force TF from the strip-shaped reinforcing member 30, and forms a stacked state on the upper and lower portions of the block-shaped resistor 20, It is configured to prevent the lateral movement of the geocell 10 filled with soil (S).

As another example, the reinforcing material for civil engineering may be a geogrid 130 configured in the form of a lattice net.

In addition, the geogrid 130 is installed to be located in the middle of the plurality of geocells 10 stacked vertically (U-D), and the front (F) side, upper side and rear side (B) of the block-shaped resistor 20 ) side is bent and deformed to cover the block-shaped resistor 20. In this embodiment, it can be understood that the geogrid 130 is installed in a form similar to FIGS. 4D and 4E.

Although the present invention has been described based on preferred embodiments with reference to the accompanying drawings, it is clear that many various and obvious modifications are possible to those skilled in the art from this description without departing from the scope of the present invention. Therefore, the scope of the present invention should be interpreted by the claims described to include these many modifications.

Claims

A geocell retaining wall constructed by stacking geocells formed by combining a plurality of unit cells up and down to have a gradient on the front side of a civil engineering slope, and installed by filling the inside of the geocell with soil; and

A retaining wall structure comprising: one or more column elements installed along the vertical direction to have the same inclination as the geocell retaining wall through some unit cells of the upper geocell and some unit cells of the lower geocell.
According to claim 1,

The retaining wall structure, characterized in that the column element is a tubular member in which the inner space is filled with a filling material.
According to claim 2,

The retaining wall structure, characterized in that the filling material is at least one of soil and aggregate.
According to claim 2,

The retaining wall structure, characterized in that the filling material is at least one of concrete, cement grouting and soil cement.
According to any one of claims 2 to 4,

Retaining wall structure, characterized in that further comprising a reinforcing bar inserted and arranged along the vertical direction inside the column element.
According to any one of claims 2 to 4,

Retaining wall structure, characterized in that the tubular member is a perforated pipe.
According to claim 1,

The pillar element is a retaining wall structure, characterized in that a part of it is embedded in the soil located on the back side of the geocell retaining wall and receives a tensile force toward the rear from a civil engineering reinforcing material that receives earth pressure and frictional force.
According to claim 7,

The civil reinforcing material is a belt-shaped reinforcing material,

Retaining wall structure, characterized in that the band-shaped reinforcement is coupled to the column element in a form surrounding at least a portion of the column element.
According to claim 7,

Two or more of the pillar elements are installed at intervals along the transverse direction,

The civil reinforcing material is a belt-shaped reinforcing material,

A retaining wall structure, characterized in that configured to combine at least a portion of the transverse reinforcing bars installed by penetrating the two or more column elements in the transverse direction in a form in which the strip-shaped reinforcing member surrounds.
According to claim 7,

The civil engineering reinforcing material is a geogrid configured in the form of a lattice net,

Retaining wall structure, characterized in that the geogrid is installed in a form passing through the upper and lower separated parts of the column element.
According to claim 10,

The column element is a tubular member in which reinforcing bars are inserted and disposed along the vertical direction therein and the internal space is filled with a filling material,

Retaining wall structure, characterized in that the reinforcing bars are installed to penetrate any one grid constituting the geogrid.
According to claim 10,

The column element is a tubular member in which the inner space is filled with a filler containing aggregate,

A retaining wall structure, characterized in that the aggregate constituting the filling material is installed to pass through the grid constituting the geogrid so as to be engaged with the geogrid through the filling material.
According to claim 10,

A block-shaped resistor is placed on top of the unit cell of the geocell with soil filling inside,

The geogrid is installed to be located in the middle of a plurality of geocells stacked vertically, and is bent and deformed in a form surrounding the front side, upper side, and rear side of the block-shaped resistor to cover the block-shaped resistor Installed in a form Retaining wall structure, characterized in that.
According to claim 10,

It is fixed by grouting in a hole drilled in a civil slope and two or more fixing rods having one end exposed to the outside of the hole are installed,

The geogrid has a form in which the rear end of the expansion part of the upper geogrid and the rear end of the expansion part of the lower geogrid installed at different vertical positions are integrally connected to each other through a connection part,

One end of the support rod installed across the front side of the connection part is coupled to one fixing rod, and the other end of the support rod is coupled to another fixing rod, the expansion of the upper geogrid and the lower geogrid A retaining wall structure, characterized in that the portion receives the tensile force from the fixing rod through the support rod.
According to claim 7,

The civil engineering reinforcing material is a reinforcing bar grid in which reinforcing bars are arranged in a lattice shape and combined,

A retaining wall structure characterized in that the front end of the reinforcing bar grid is coupled to transverse reinforcing bars installed by penetrating two or more column elements installed at intervals in the transverse direction in the transverse direction.
According to claim 1,

The column element is a tubular member capable of filling the internal space with a filling material,

It is fixed by grouting to a hole drilled in a civil slope and a fixing bar material having one end exposed to the outside of the hole is installed,

A retaining wall structure, characterized in that one end of the fixing bar inserted through the pillar element is configured to be fastened to the support plate in the inner space of the pillar element.
According to claim 16,

The fixing bar is a retaining wall structure, characterized in that two or more bar elements are connected through a coupler.
According to claim 1,

The column element extends toward the soil side located on the rear surface of the geocell retaining wall and receives a tensile force toward the rear by a rear reinforcing bar coupled to the column element in a form surrounding at least a portion of the column element Retaining wall, characterized in that structure.
According to claim 18,

A support plate is fastened to the rear end of the reinforcing bar for the rear,

The retaining wall structure, characterized in that the support plate is configured to be buried in the soil located on the rear surface of the geocell retaining wall.
According to claim 18,

It is fixed by grouting to a hole drilled in a civil slope and a fixing bar material having one end exposed to the outside of the hole is installed,

Retaining wall structure, characterized in that the rear end of the rear reinforcing bar is connected to the fixing bar through a coupler.
According to claim 1,

The pillar element,

It is a tubular member capable of filling the internal space with a filling material, and has reinforcing bars inserted and arranged along the vertical direction inside the column element,

The rear end extends to the soil side located on the back side of the geocell retaining wall and penetrates the column element to receive a tensile force toward the rear by a band-shaped steel plate reinforcement having a front end coupled to the reinforcing bar in the inner space of the column element. Retaining wall structure.
According to claim 1,

Two or more of the pillar elements are installed at intervals along the transverse direction,

Transverse reinforcing bars penetrating the two or more column elements in the transverse direction are installed,

Retaining wall structure, characterized in that the transverse reinforcement is coupled to the front end of the steel plate reinforcement in the form of a band whose rear end extends toward the soil side located at the back of the geocell retaining wall, and is provided with a tensile force toward the rear by the steel plate reinforcement.
According to claim 1,

The geocell retaining wall includes a first geocell retaining wall located in front of the civil slope on one side of the soil stack and a second geocell retaining wall located in front of the civil slope on the other side of the soil stack,

The pillar element is a first pillar element installed along the vertical direction passing through some unit cells of the upper layer geocell and some unit cells of the lower layer geocell of the first geocell retaining wall and an upper layer of the second geocell retaining wall It includes a second pillar element installed along the vertical direction through some unit cells of the geocell and some unit cells of the lower geocell,

A strip-shaped reinforcing member coupled to the first pillar element in a form surrounding at least a portion of the first pillar element passes through the soil laminate and is coupled to the second pillar element in a form wrapping at least a portion of the second pillar element, The retaining wall structure, characterized in that the first pillar element and the second pillar element are provided with a tensile force toward the soil laminate.
According to claim 1,

Two or more of the pillar elements are installed at intervals along the transverse direction,

Transverse reinforcing bars penetrating the two or more column elements in the transverse direction are installed,

Auxiliary transverse reinforcing bars disposed in the transverse direction at another angle with the transverse reinforcing bars are coupled to the transverse reinforcing bars,

At least one of the transverse reinforcing bars and auxiliary transverse reinforcing bars is fixed to a hole drilled in a civil slope by grouting and coupled to a fixing bar having one end exposed to the outside of the hole Retaining wall structure.
According to claim 24,

Auxiliary reinforcing bars inserted and arranged along the vertical direction inside the unit cell at a position overlapping with at least one of the transverse reinforcing bars and auxiliary transverse reinforcing bars are provided,

The auxiliary reinforcing bars are combined with at least one of the transverse reinforcing bars and auxiliary transverse reinforcing bars,

A retaining wall structure, characterized in that the filling of the internal space with at least one of concrete, cement grouting and soil cement is performed inside the unit cell in which the auxiliary reinforcing bars are inserted and arranged in the vertical direction.
According to claim 1,

The geocell retaining wall is a gravity retaining wall formed by connecting two or more unit geocell retaining walls stacked at different heights,

The pillar element is a retaining wall structure, characterized in that installed separately for each unit geocell retaining wall.
According to claim 1,

The pillar element is composed of two or more unit pillar elements coupled along the longitudinal direction,

The unit pillar element is manufactured to a predetermined height, and a retaining wall structure is configured such that a protrusion is formed on one end surface and a groove portion into which the protrusion is inserted and coupled is formed on the other end surface.
According to claim 1,

The inside of the column element is provided with reinforcing bars inserted and disposed along the vertical direction,

At the lower part of the column element, a steel pile or steel pipe is provided with a perforation inserted into the lower ground,

Retaining wall structure, characterized in that the reinforcing bar is fixedly coupled to the steel pile or steel pipe.
According to claim 1,

Two or more of the pillar elements are installed at intervals along the transverse direction,

Transverse reinforcing bars penetrating the two or more column elements in the transverse direction are installed,

A steel pile or steel pipe drilled into the lower ground is provided,

Retaining wall structure, characterized in that the transverse reinforcing bars are through-coupled to the steel pile or steel pipe.
According to claim 1,

Two or more of the pillar elements are installed at intervals along the transverse direction,

A reinforcing bar inserted and arranged along the vertical direction is provided inside the column element,

It is drilled into the lower ground and is provided with a steel pile in which at least a part is inserted and disposed inside the column element along the vertical direction,

A retaining wall structure, characterized in that the transverse reinforcing bars penetrating the two or more column elements in the transverse direction are combined with at least one of the reinforcing bars and the steel pile.
According to claim 1,

The column element is a tubular member, and the internal space is filled with aggregate,

A drain board or bundle pipe installed through the incised side part of the column element is disposed between some unit cells of the upper geocell and some unit cells of the lower geocell,

A retaining wall structure, characterized in that configured to supply moisture stored inside the column element to the geocell retaining wall through the drain board or the bundle pipe.
According to claim 1,

The pillar element,

It is a tubular member capable of filling the internal space with a filling material, and has reinforcing bars inserted and arranged along the vertical direction inside the column element,

The rear end extends to the soil side located at the back of the geocell retaining wall and penetrates the column element to receive a tensile force toward the rear by a civil reinforcing material coupled to the reinforcing bar in the internal space of the column element Retaining wall structure, characterized in that .
According to claim 1,

Two or more of the pillar elements are installed at intervals along the transverse direction,

Transverse reinforcing bars penetrating the two or more column elements in the transverse direction are installed,

Retaining wall structure, characterized in that the transverse reinforcement is coupled to a civil reinforcing material whose rear end extends toward the soil side located at the rear of the geocell retaining wall, and receives a tensile force toward the rear by the civil reinforcing material.
According to claim 1,

It is fixed by grouting to a hole drilled in a civil slope and a fixing bar material having one end exposed to the outside of the hole is installed,

The retaining wall structure, characterized in that the pillar element is provided with a rearward tensile force based on the fixing bar.
According to claim 1,

Two or more of the pillar elements are installed at intervals along the transverse direction,

It is fixed by grouting to a hole drilled in a civil slope and a fixing bar material having one end exposed to the outside of the hole is installed,

A retaining wall structure, characterized in that at least a portion of the transverse reinforcing bars installed through the two or more column elements in the transverse direction receive a tensile force toward the rear based on the fixing bar.
According to claim 1,

A part of the soil is buried in the soil located on the back of the geocell retaining wall, and a civil reinforcement is installed that receives a tensile force toward the rear based on the soil pressure and frictional force of the soil,

A retaining wall structure, characterized in that a part of the front side of the civil engineering reinforcing material is installed to be located in the middle of a plurality of vertically stacked geocells.
37. The method of claim 36,

The civil reinforcing material is a belt-shaped reinforcing material,

A block-shaped resistor is placed on top of the unit cell of the geocell with soil filling inside,

A plurality of geocells in which the band-shaped reinforcing member includes a bending portion forming a state of wrapping the front side and left and right sides of the block-shaped resistor and an expanding portion extending in the transverse direction toward the civil slope to form an unfolded state, and the bending portion is stacked vertically Retaining wall structure, characterized in that installed to be located in the middle of.
37. The method of claim 36,

The civil engineering reinforcing material is a geogrid configured in the form of a lattice net,

A block-shaped resistor is placed on top of the unit cell of the geocell with soil filling inside,

The geogrid is installed to be located in the middle of a plurality of geocells stacked vertically, and is bent and deformed in a form surrounding the front side, upper side, and rear side of the block-shaped resistor to cover the block-shaped resistor Installed in a form Retaining wall structure, characterized in that.
According to claim 1,

A retaining wall structure, characterized in that one column element is configured to be installed over the entire vertical height of the geocell retaining wall by penetrating the preset unit cell position of the upper geocell and the preset unit cell position of the lower geocell.
According to claim 1,

The geocells constituting each layer are stacked in a horizontally spread state, and the geocell retaining wall configured by stacking the geocells constituting each layer vertically has a slope,

A retaining wall structure characterized in that the upper surface of the unit cells located at the frontmost part of each geocell layer is exposed in a stepped state with at least one of soil and aggregate buried therein.