KR102087905B1 - the fiber cell unit for retaining wall and the prefabricated retaining wall structure using the same - Google Patents

Abstract

The present invention is to be used in the construction of the retaining wall structure of the slope
A first partition wall 110 installed vertically;
A second partition wall 130 installed across the first partition wall 110;
A loss prevention cover 170 installed below the filling space 190 formed by the first partition wall 110 and the second partition wall 130;
Consists of including
Even if the filling material is filled in the filling space 190, the filling material is not lost to the lower portion due to the loss prevention cover 170, the fiber cell unit for the retaining wall, characterized in that the self-supporting due to the weight of the filling material (100) ) And a prefabricated retaining wall structure using the same.

Description

The fiber cell unit for retaining wall and the prefabricated retaining wall structure using the same}

The present invention forms a lightweight cell structure in the retaining wall structure, but the structure is simple and easy to construct, so that even unskilled workers can be constructed with a predetermined quality. Independently stable and can reduce maintenance costs, and the structure of vertical stacking of tens of centimeters in height is strictly applied to the stratification of reinforced earth so that it is efficient for quality wall retaining cell unit and prefabricated retaining wall structure using the same It is about.

In general, the retaining wall is a structure that resists transverse earth pressure by using a retaining wall or backfill material weight and a reinforcing material installed on the retaining wall.

(1) reinforced concrete retaining walls of gravity-type anti-gravity structure, (2) reinforcement earth retaining walls that are layered using reinforcement and front blocks, and (3) gabion retaining walls that are stacked in multiple stages by putting a stone into a mesh mesh.

The present invention aims at improving the existing reinforced earth retaining wall, gabion retaining wall (gebion retaining wall), and geocell retaining wall.

1 is a photograph taken on the factory surface of the conventional geocell reinforcement retaining wall,

Figure 2 is a photograph of the commercial factory surface of the conventional gebion retaining wall.

The reinforcement soil retaining wall finish type is divided into panel type, block type, separate type, geocell reinforcement soil retaining wall, etc. According to the present invention, construct the reinforcement soil first and then install the front block to minimize the effect of deformation of the reinforcement soil. It is included in the form of the application of the removable reinforced retaining wall.

In general, the reinforcement soil retaining wall represented by the block type is to form a reinforcement soil by repeating the process of laminating the block on the front surface, filling the gravel in between, laying the grid on the back and compacting the soil.

In block type reinforced soil retaining walls, block loss occurs due to the settlement of blocks and reinforced soil at the interface between block and reinforced soil due to inequality between block and reinforced soil due to settlement occurring in reinforced soil after compaction. There are many examples.

Therefore, the present invention solves the problems such as block separation generated from the existing reinforced soil retaining wall by applying a separate reinforced soil retaining wall of the form that performs the front finish after constructing the reinforced soil first using the fiber cell.

The gabion retaining wall shown in FIG. 2 is a gravity retaining wall structure in which a crushed stone (gebstone) having an average diameter of 150 mm or more is placed in a mesh form made of iron wire and stacked in multiple stages by repeating a process of making a block.

In the case of gabion retaining wall, it is widely used because it is easy to install and install gabion and crushed stone in the field. There is a vulnerability.

Therefore, the present invention proposed a retaining wall structure that can replace the gabion retaining wall by applying various materials and construction methods such as gravel, soil compaction, and solidified material by securing a structure trapped inside using a fiber cell.

Geocell retaining wall shown in Figure 1 is utilized to prevent slope loss, foundation reinforcement by using a reinforcement consisting of a honeycomb-shaped rectangular cells of several tens of centimeters in size, the process of laying a cell on top of the geocell and filling the soil inside. The retaining wall can be repeatedly constructed.

However, when the geocell retaining wall is stacked vertically due to the external shape, as shown in FIG.

Therefore, in the present invention, the loss prevention cover 170 is installed outside the fiber cell, and thus, even when the fiber cells are stacked vertically, no loss of internal fillers occurs, so that the retaining wall structure can be stacked vertically.

[Document 1] Republic of Korea Patent Publication No. 10-2010-0067565 'Ecogebion', 2010. 06. 21. [Document 2] Republic of Korea Patent Publication No. 10-2007-0066544 'Steel Reinforcement Retaining Wall Reinforcement', 2007. 06. 27.

The present invention is proposed to solve the conventional problems as described above. The purpose is to form a lightweight cell structure in the retaining wall structure, but the structure is simple and easy to construct, so that even unskilled workers can be constructed with a certain quality. Independently stable and can reduce maintenance costs, and the structure of vertical stacking of tens of centimeters in height is strictly applied to the stratification of reinforced earth so that it is efficient for quality wall retaining cell unit and prefabricated retaining wall structure using the same To provide.

In order to solve the above technical problem, the present invention is to be used in the construction of the retaining wall structure of the slope

A first partition wall 110 installed vertically;

A second partition wall 130 installed across the first partition wall 110;

A loss prevention cover 170 installed below the filling space 190 formed by the first partition wall 110 and the second partition wall 130;

Consists of including

Retaining wall fiber cell unit 100, characterized in that even if the filling material is filled in the filling space 190 is not lost to the lower portion due to the loss prevention cover 170, due to the weight of the filling material is independent ) And a prefabricated retaining wall structure using the same.

According to the present invention, a lightweight cell structure is formed in the retaining wall structure, but the structure is simple and easy to construct, so that even unskilled workers can be constructed with a predetermined quality, and additionally because the filling material is prevented from filling the cell structurally. It is a self-supporting material that can stably freeze and reduce maintenance costs, and has a structure of vertical stacking of several tens of centimeters in height. Provide structure.

Figure 1 is a photograph of the factory surface of the conventional geocell reinforcement earth retaining wall.
Figure 2 is a photograph of the commercial factory surface of the conventional gebion retaining wall.
Figure 3 is a perspective view showing the inside by cutting a part in the retaining wall fiber cell unit of the present invention.
Figure 4 is a perspective view of the retaining wall fiber cell unit of the present invention.
5 is a perspective view of another embodiment of a fiber cell unit for a retaining wall of the present invention.
Figure 6 shows a prefabricated retaining wall structure using the retaining wall fiber cell unit of the present invention constructed without a step without forming a curved end surface in a curved incision or slope.
Figure 7 shows the prefabricated retaining wall structure using the retaining wall fiber cell unit of the present invention constructed in a stepwise form the curved curved incision or slope.
8 is a side view of an embodiment of the present invention.
9 is a plan view of FIG. 3.

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

Figure 3 is a perspective view showing the inside by cutting a part in the retaining wall fiber cell unit of the present invention,

Figure 4 is a perspective view of the retaining wall fiber cell unit of the present invention.

Retaining wall fiber cell unit 100 of the present invention is to be used for the construction of the retaining wall structure of the slope

A first partition wall 110 installed vertically;

A second partition wall 130 installed across the first partition wall 110;

A loss prevention cover 170 installed below the filling space 190 formed by the first partition wall 110 and the second partition wall 130;

Consists of including

Even though the filling material is filled in the filling space 190, the filling material is not lost to the lower portion due to the loss preventing cover 170, and is able to stand on its own due to the weight of the filling material.

Therefore, the filling material, such as earth and sand, press the loss prevention cover 170 from the top to the lower weight by itself to prevent loss of the filling material, so that the filling material can be freely standing vertically, in a sealed structure such as sand contained in a so-called bag. Maintain structural stability.

In other words, the present invention is to form a retaining wall by stacking in a vertical or trapezoidal shape using a fiber cell unit 100 for a rectangular parallelepiped retaining wall fiber cells having a cell structure divided into one or multiple stages in the height direction. A prefabricated retaining wall structure and a construction method are provided.

The retaining wall fiber cell unit 100 has a structure in which a plurality of cells in a honeycomb form having a height and a width of several tens of cm are connected and connected in multiple stages,

After expanding the retaining wall fiber cell unit 100 from the lower end to fill the soil, gravel or solidified materials,

Form the reinforcement body to the retaining wall in the form of repeating the filling and compacting process by opening the upper end.

Panel or block-shaped finish material 200 is applied to the outer side of the blocked cell structure, and when the retaining wall fiber cell unit 100 is stacked, a function of maintaining a cross-sectional shape of a flat or curved shape and a fiber cell exposed to the outside The unit is applied for the purpose of preventing corrosion from progressing due to deterioration.

The present invention has a structure of vertical stacking of about tens of cm in height, so that the stratification of reinforcement soil is strictly applied, which is effective for quality control.

Because the conventional block-type reinforcement soil retaining wall stacks and compacts more than two or three stages, the standard or the height of the compaction of one or one stage is not constant, causing a lot of cases to settle or fill depending on the construction conditions.

However, in the present invention, since the height of one cell or one end of the cell is determined, the stratification between the cell filling and the back section should be performed regularly according to the height of the corresponding cell. have.

In addition, filling the filling material in the cell structurally prevents the loss of the filling material, there is an advantage that the front surface finishing, such as block or concrete casting after forming the reinforcement body first by stably freestanding without additional additional materials.

In the present invention, the first partition 110, the second partition 130 and the loss prevention cover 170 forms one cell,

A plurality of cells are formed adjacent to each other.

In addition, the outer wall 150 around the plurality of cells (cell); characterized in that is installed.

9 is a plan view of FIG. 3.
In addition, according to another embodiment of the present invention, the first partition wall 110 and the second partition wall 130 form one cell 190.

The outer wall 150 is integrally installed with the loss prevention cover 170 around the plurality of cells.
Specifically, as shown in FIGS. 3 and 9, the first partition 110 and the second partition 130 form one cell, and a plurality of cells are adjacent to each other. The outer wall 150 is enclosed around the plurality of cells to form one unit, and a lower end of the outer wall 150 is bent and folded into the unit to integrally form the loss prevention cover 170. and,
When the units are stacked up and down,
Since the filling space 190 is connected between the upper and lower units of each other, the filling material is filled in the filling space 190 to form one filling material bulb between the upper and lower units, thereby ensuring integrity. ,
The filling material is not lost to the lower portion of the outer wall 150 due to the loss preventing cover 170.

Materials such as the first partition wall 110, the second partition wall 130, the loss prevention cover 170 may be folded at a light weight and have a structure that prevents loss of the filling material, but retains drainage, such as fibers and synthetic resins. It is preferable to use.

In addition, components such as the first partition wall 110, the second partition wall 130, and the loss prevention cover 170 may be integrally manufactured through cutting, bonding, sewing, and the like. ) Is also the same.

5 is a perspective view of another embodiment of the retaining wall fiber cell unit of the present invention. Specifically, it shows a state of filling the filling material by the compaction work.

As shown in FIG. 5, in the present invention, the first partition wall 110 and the second partition wall 130 have a height difference h lower than that of the outer wall 150 so that the filler is the outer wall 150. It is characterized by being filled up.

The embodiment of FIG. 5 is different from the embodiments of FIGS. 2 and 3, and the fiber cell unit 100 for the retaining wall is manufactured in a large size, and the first and second partition walls 110 and 130 are at a minimum height. It is easy to manufacture and increase the self-pressing effect of the filling material.

In general, when the compaction is carried out using earth and sand, the depth of the compaction efficiency is lowered to a maximum value at a predetermined depth. Therefore, the thickness of one layer is limited and the compaction is divided into several layers.

Thus, in the present invention, as shown in Figure 5, when the soil is filled with a compaction process, the height of the unit 1 stage is divided into 20 to 50cm level so that the compaction in consideration of the compaction efficiency is characterized.

FIG. 6 illustrates a prefabricated retaining wall structure using the retaining wall fiber cell unit of the present invention, which has a curved end surface formed on a curved cutout or an inclined surface and is constructed without layers.

FIG. 7 illustrates a prefabricated retaining wall structure using the fiber cell unit for the retaining wall of the present invention, which is constructed stepwise with a curved end surface on a curved incision or slope.

As shown in Figures 6 and 7,

The prefabricated retaining wall structure using the retaining wall fiber cell unit of the present invention is freely applicable even if the cut surface is straight or curved, and has a feature that can be applied stepwise regardless of the inclination of the cut surface.

Specifically, Figure 6 shows a prefabricated retaining wall structure for the case where the compaction work is not necessary by using a filler such as a hardener, concrete, etc. in the retaining wall fiber cell unit, the method of filling the filler by the injection method rather than compacting No fiber cell unit division is required.

8 is a side view of an embodiment of the present invention. Specifically, Figure 8 (a) is a reinforced soil retaining wall (grid reinforcement type), Figure 8 (b) is a front concrete finish type, Figure 8 (c) is a gravity retaining wall type (gebion retaining wall replacement), Figure 8 (d) is a gravity type Retaining wall type (front landscape composition) is shown.

As shown in Figures 7 and 8,

The prefabricated retaining wall structure using the retaining wall fiber cell unit of the present invention is freely applicable even if the cut surface is straight or curved, and the like, and the parallel to the reinforcement according to the method of stacking the fiber cell unit, the cell weight It can be installed in various ways regardless of construction conditions such as layout plan (straight line, curve), cut, and fill that apply retaining wall, such as the gravity method used and the cell placed sequentially.

The prefabricated retaining wall structure using the fiber cell unit for the retaining wall of the present invention,

By using the retaining wall fiber cell unit 100,

(1) arranging the slopes, incisions or foundation grounds for installing the retaining wall;

(2) a first step retaining wall fiber cell unit installation step of installing the retaining wall fiber cell unit 100 at a first end spaced apart from the inclined surface or the incision surface;

(3) a filling material construction step of laying and filling the filling material in the filling space 190 of the retaining wall fiber cell unit 100;

(4) The first and second steps of repeating the steps (2) and (3) to the n-th end contacting the upper portion of the retaining wall fiber cell unit 100 installed in the first end spaced from the inclined surface or the incision surface n stage construction step;

Consists of including

The filling material is not lost to the lower portion due to the loss prevention cover 170, it characterized in that the self-support due to the weight of the filling material.

And laying reinforcement materials such as geogrids according to the use conditions.

Also after the step (4),

(5) a finishing material installation step of installing the outer wall finishing material 200 on an outer surface of which the plurality of retaining wall fiber cell units 100 are stacked; is characterized in that it is added.

The outer wall finishing material 200 prevents material damage due to deterioration due to external exposure of the retaining wall fiber cell unit 100 by applying a PC panel such as concrete to the outer exposed surface, and soil (filling material) for the inside of the cell. It is to secure the formability of the retaining wall structure by preventing excessive deformation during filling and compaction.

Therefore, the step (5) is carried out in parallel with the step (2), or is pre-worked in advance to the outer wall finishing material 200 is pre-attached to the retaining wall fiber cell unit 100 (1) Steps and the like may proceed.

In conclusion, the present invention forms a lightweight cell structure in the retaining wall structure, but the structure is simple and easy to construct, and the stratification of the reinforced soil body is strictly applied to the structure of vertically stacking the height of one layer several tens of cm. Efficient for management, and filling the filling material in the cell to prevent loss of the filling material structurally can be stably independent without additional materials.

Since reinforcement soils are first constructed using the fiber cell unit, and then the external finishing material 200 is installed at the time when the settlement and convergence are converged, the sedimentation deformation of reinforcement soils does not contribute to the separation and damage of the front block. There is a characteristic that can maximize the structural stability of the.

Although the present invention has been described in connection with the preferred embodiment as mentioned above, various modifications and variations are possible without departing from the gist of the present invention, and can be used in various fields.

Therefore, the claims of the present invention include modifications and variations that fall within the true scope of the invention.

100: fiber cell unit for retaining wall
110: first bulkhead
130: second bulkhead
150: outer wall
170: loss prevention cover
190: Filled space

Claims (6)

delete delete To be used for retaining wall construction of slope
A first partition wall 110 installed vertically;
A second partition wall 130 installed across the first partition wall 110;
A loss prevention cover 170 installed below the filling space 190 formed by the first partition wall 110 and the second partition wall 130;
Consists of including
Even though the filling material is filled in the filling space 190, the filling material is not lost to the lower portion due to the loss prevention cover 170, characterized in that the self-supporting due to the weight of the filling material,
The first partition wall 110 and the second partition wall 130 form one cell, a plurality of cells are formed adjacent to each other, and an outer wall (around the plurality of cells) 150); enclosed to form one unit,
The lower end of the outer wall 150 is bent to the inside folded to form the loss prevention cover 170 integrally,
When the units are stacked up and down,
Since the filling space 190 is connected between the upper and lower units of each other, the filling material is filled in the filling space 190 to form one filling material bulb between the upper and lower units, thereby ensuring integrity. ,
Retaining wall fiber cell unit 100, characterized in that the filling material is not lost to the lower portion of the outer wall 150 due to the loss prevention cover 170.
delete By using the fiber cell unit 100 for the retaining wall of claim 3,
(1) arranging the slopes, incisions or foundation grounds for installing the retaining wall;
(2) a first step retaining wall fiber cell unit installation step of installing the retaining wall fiber cell unit 100 at a first end spaced apart from the inclined surface or the incision surface;
(3) a filling material construction step of laying and filling a filling material in the filling space 190 of the retaining wall fiber cell unit 100;
(4) The first and second steps of repeating the steps (2) and (3) to the n-th end contacting the upper portion of the retaining wall fiber cell unit 100 installed in the first end spaced from the inclined surface or incision surface n stage construction step;
Consists of including
Prefabricated retaining wall structure using the retaining wall fiber cell unit, characterized in that the filling material is not lost to the lower portion due to the loss prevention cover 170, the self-support due to the weight of the filling material.
delete

Images