KR20160128560A - Reinforced earth retaining wall with blocks of structure frame and wire mesh - Google Patents

Abstract

The present invention relates to an improved reinforced earth retaining wall and a method of constructing the reinforced earth retaining wall, which eliminates the disadvantages of the block type reinforcing earth retaining wall and the gravel retaining wall,
Forming a layer of a front structural block of the reinforcing earth retaining wall; Installing a filter mat on the back of the front structural block; And filling the backfill material on the filter mat to complete the one end of the reinforced earth retaining wall and then repeating the above steps at one end of the reinforcing earth retaining wall to construct a reinforced earth retaining wall, The front surface structural block includes a body in the form of a housing having an opening at an upper portion and having a filling space in which a block filler can be installed therein and a lid covering the upper portion of the body after filling the filling space of the body with the filling material, And a reinforcing earth retaining wall formed by the reinforcing earth retaining wall,
It is structurally stable by presenting the wire net which is formed integrally with the structural frame while having the advantages of the existing Gobion retaining wall, but also can be used economically and efficiently when it is used as the garbage filling material by taking it from the field or from the site. have. The present invention has solved the problem that the creeping and deformation overgrowth phenomenon occurs when the earth pressure is increased because it is weak in bending due to the engineering characteristics of the gabion wire mesh.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforced earth retaining wall,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforced earth retaining wall and a method of constructing the reinforced earth retaining wall, and more particularly, to an improved reinforced earth retaining wall and a reinforced earth retaining wall, And a construction method thereof.

1 shows a conventional block type reinforced earth retaining wall and its construction method. Conventional block type reinforced earth retaining wall has problems in that it is constructed by conveying already manufactured concrete panels or blocks and is liable to be damaged during transportation and lowering of workability due to weight at the time of construction and the ground water and the surface infiltration water drainage on the back side of the front side wall are not smooth Which caused the increase of earth pressure on the wall part of the retaining wall and the folding phenomenon. In addition, there is a problem that when the backfill material of reinforced earth filler is poor, there is a risk of deformation of the wall when excessive compaction occurs, difficulty in vegetation, and inconvenience due to a huge concrete structure.

2 shows a conventional gabion-retaining wall and its construction method. Conventionally, the Gavion-retaining wall has a problem that the quality depends on the workability of the worker due to the lowering of the workability due to the assembly of the wire mesh. Because of the engineering characteristics of the gabion wire mesh, it is general that excessive creep and deformation occurs when the earth pressure is increased due to the deflection, and when the deformation of the gabion wall is accumulated, the problem of stability of the whole gabion retaining wall is weak. . It is difficult to compose the front wall wall, and when the wall is collapsed due to force, it causes excessive deformation of the wall wall. As a result of these problems, although the gabion has many merits (drainability, flexibility, economical efficiency, etc.), it is not actively applied to the front wall of the reinforced earth retaining wall, When applied as a gravity type retaining wall, there is a limit to the height of the retaining wall.

The present invention overcomes the problems and limitations of the present invention while having both of the advantages of the block type reinforced earth retaining wall and the garbage retaining wall, and is referred to as a 'block type structure frame and wire netting'. However, the present invention falls within the scope of the present invention as long as the technical ideas described below are applied thereto without being limited to these names. First, the garbons used by the present invention will be described in detail, and means for solving the problems will be presented.

In the cutting area (incision site) or the slope slope slope slope in the road slope or the quarry, the slope cover and bottom slope of the river in the river repair work, the slope protection slope of the river crossing bridge pier, And the like can be applied or applied. Gabion (gabion, gabion) is easy to obtain materials, and easy to construct. In addition, it is possible to construct oyster shell, and the construction cost is relatively economical. (This specification uses a gabion, a wire net, a garbage, or the like in combination as needed, but falls within the scope of the present invention irrespective of the expression if the use and function described below are common.)

On the other hand, along with the development of civilization, in order to construct a road which is enlarged due to the development of transportation means, a portion of a mountain, a portion of a river, a river, . Unexpected heavy rainfall due to over-temperature phenomena (El Niño, La Niña, etc.) or 70 to 80% of rainfall on the incision surface during the rainy season will flow down to the ground. In this way, rainwater flows down along the incision surface, and a part of the rainwater impregnates into the ground of the flat surface. The rainwater that permeates through the incision surface becomes bulky in the weak soil portion, causing the incision surface to collapse and cause landslides. Such a collapse of the incision plane cuts off the road traffic, as well as accidents such as burial or overturning of the vehicle. The soil of these cut-outs is made of excavated rocks or gypsum. The soil that forms most of the gypsum is formed by physical, chemical and biological weathering for many years. In addition, the major components of the soil generated from the rock include minerals that are weathering products of rocks, organic matter formed from debris of animals and plants, water generated by decomposition process of organic matter, carbon dioxide gas, and oxygen. Therefore, the cut-off sites of the mountains and rivers are changed into the soil that can be grown by the biological weathering of the soil after about 5 to 10 years after the cut-out construction. Therefore, the present invention is included in the content of the viscosity technique for vegetation.

In general, rivers, dams, shorelines, cut-outs, etc. are provided with various embankments, dams or retaining walls to prevent flooding of water or seawater, or to maintain waterways. These various embankments, dams, retaining walls, etc. have been constructed using a shore block or concrete structure that is traditionally easy to work with and relatively easy to maintain. However, various construction methods adopted for reasons such as ease of operation have not been environmentally friendly, and thus, side effects are occurring, or at least such side effects are expected (see FIG. 1).

On the other hand, the construction method using the above-described gabion (gabion) is to fill gravel, rubble and the like inside the gab of a square wire mesh or a hexagonal wire mesh to smooth the water flow around the gap through the gap of the filler And when the soil is used as a filler, grasses and trees can grow, which is attracting attention as an eco-friendly construction method. Because of the nature of the construction method, rubble, gravel and the like are collected in the interior of the gabion wire (or gabion wire mesh) and filled in as a filler material. The filler material retains its shape by the wire mesh on the outside.

On the other hand, Gavion Wire Mesh performs the greatest function in preserving and maintaining the filler materials filled in it. However, when a considerable external force is applied from the outside, a phenomenon that the gabion wire mesh is cut by the filler material occurs. For example, when a retaining wall is constructed using a gabion gabion, such a retaining wall is constructed to prevent a rock falling out of the incision, such as a retaining wall of a river where a water flow is generated, or a retaining wall of a cut- , Rocks or large stones transported by the rapidity strike the gabion retaining wall. In the case of the incision site, the rocks, such as rocks falling from above, collide against the gabion retaining wall. In this case, the stability of the retaining wall itself is problematic due to the breakage of the garbage, and the present invention provides a structure that can secure a certain level of safety above a certain level.

Open No. 10-2011-0000311 (a unit surface member of a gobion block and a method of manufacturing a gobion block and a mattress gobion using the same) related to a conventional block type or a gobion-retaining wall, etc., a registered trademark 10-0475521 And a method of reinforcing it), a utility model registration No. 20-0300440 (an eco-friendly building retaining wall block), and a registered patent No. 10-0363435 (a method of building a slope).

The prior art includes a retaining wall block in which a block having an overall hexahedral shape in which concrete or stone is combined is formed and then a retaining wall is formed by laminating the blocks to fill the central space of the block with soil to allow plants to grow. A base made of a wire mesh is provided on a slope and a side member is fixed to a side of the slope so as to form a receiving space for containing the stone material. Then, the stone material is filled in the space, the support material is covered on the stone material, the soil is covered on the supporting material, And the like.

However, due to the structural limitations of the prior art, there is a problem in that the soil filled in the block is easily lost due to structural limitations, the continuous supply of water to the soil is difficult at the time of drought, In the construction site where the slope of the incision surface is so severe that the slope of the incision surface is close to the vertical direction or the unit gap temperature should be stacked in the vertical direction, It is difficult.

In addition, due to the fact that the conventional garbons are generally composed of a wire net and a stone which is a filler material filled in the inside thereof, it is difficult to maintain the shape in its entirety during the transportation process or the construction process. Due to the filler material stored in the wire net, A phenomenon may occur, and when a plurality of garbons are arranged vertically or horizontally, there is a space between the garbons adjacent to each other.

It is difficult to apply it to the exact position when stacking up and down according to the norm line. Therefore, even if the construction of the garbons is completed, even when the construction of the garbons is completed, due to the load such as water pressure or earth pressure acting on the back wall, There is a fear that the shape or position of the light guide plate may be deformed.

Above all, it is economically desirable to secure a filler material in the vicinity of the site or site depending on the need. However, it is difficult to apply the filler material such as sandstone, gravel, or mixed stone to the open space, Even if it is necessary to close the inside of the garbage, there is a problem of efficiency of deformation or compaction in the compaction process.

Patent application title: Patent Application WO / 2007 / Registered Trademark of Korea (EN) Registered Utility Model Bulletin (Y1) 20-0300440 (Jan. 14, 2003) Patent application title: Patent Application WO / 2009 / Patent application title: Patent Document 1: Japanese Patent Application Laid-Open (JP-A) No. 2001-0007665 (Feb. 5, 2001)

The present invention proposes a wire mesh integrally formed with a structural frame while having the advantages of the existing gabion retaining wall, and is structurally stable. In addition, when the gabion filler is used in the field or near the site, .

The present invention is intended to solve the problem of the existing gabion retaining wall because the construction of the wire mesh is assembled in the field and the quality tends to depend on the skill of the worker.

The present invention is to solve this problem because it is vulnerable to bending due to the engineering characteristics of the gabion wire netting, which causes overburden and deformation overload when the earth pressure is increased. In addition, when the deformation of the open-walled wall is accumulated, the stability of the entire open-walled retaining wall is weakened.

The present invention is intended to solve the problem that it is difficult to compose the front open wall and that excessive deformation of the open wall occurs during compaction. It is also intended to suppress deformation through the formation of a comprehensible front wall.

The present invention is intended to control the displacement due to the earth pressure which is increased during the front wall laminating, and it can improve the binding force of the front wall, and can secure the drainage processing ability of ground water and infiltration water as in the conventional open- To ensure similar rigidity to the filler material and to make it behave as one.

The present invention is advantageous from the viewpoint of economical efficiency, simplification of work type, easy workability, and easy transportation and construction of the front wall. In addition, if necessary, it is possible to utilize it as an eco-friendly method with vegetation and excellent aesthetics.

In order to solve the above-mentioned problems, the present invention provides a method of constructing a reinforced earth retaining wall after forming a slope part to form a slope or a clay part, and a base part forming a base part by pouring concrete or crushed stone; Forming a layer of a front structural block of the reinforcing earth retaining wall; Installing a filter mat on the back of the front structural block; And filling the backfill material on the filter mat to complete the one end of the reinforced earth retaining wall and then repeating the above steps at one end of the reinforcing earth retaining wall to construct a reinforced earth retaining wall, The front surface structural block includes a body in the form of a housing having an opening at an upper portion and having a filling space in which a block filler can be installed therein and a lid covering the upper portion of the body after filling the filling space of the body with the filling material, The method comprising the steps of:

The filter mat may cover the backfill material on the back surface of the front structural part block to prevent the backfill material from being disturbed or lost, thereby acting as an integral part.

The front structural block may be formed of a wire mesh.

The front structural block includes a structural frame, and the wire net is fixed to the structural frame.

The structural frame may be formed of a structural member (for example, a pipe or the like).

The cover may extend from the backfill material and may be integrally formed with the reinforcing material.

The lid is a reinforced lid extending to the backfill material, and the reinforcing lid and the reinforcing material are selectively applied to the layers.

A binding pin is formed on an upper portion of the front structural block and the binding pin is bound to the reinforcing material or the reinforcing lid so that the front structural block and the back filling agent can move integrally with each other. have.

The block filler may include gravel, geotextile fibers may be disposed in the filling space of the front structural block, and the block filler may be installed, and the filler may be sealed in a tubular form using the geotextile.

The front portion of the structural frame may be formed with a round portion protruding forward in a round shape.

The round portion may be formed to protrude in a round shape, and the protrusion width may be 20% to 30% of the protrusion height.

The present invention may further comprise a step of filling the filler material charged in the front surface structural block body filling space.

Wherein the structural frame comprises an outer frame of the front structural block and an inner frame of the front structural block, the upper height of the inner frame being lower than the upper height of the outer frame so that the compaction and the inner frame are not interfered .

The upper portion of the side frame of the outer frame is formed lower than the upper portion of the front portion or the rear portion of the structural frame so that the compaction and the side frame do not interfere with each other.

The present invention may include any one of a vegetation pocket or a pattern plate fixed to the front surface of the front structural block.

The geoscientific fiber is a vegetation mat, and vegetation is formed on the front structural block.

In order to solve the above-mentioned problems, the present invention also discloses a reinforced earth retaining wall that is constructed by the method of constructing the reinforced earth retaining wall.

According to the present invention, it is possible to provide a wire net integrally formed with a structural frame, which has advantages of existing gyven-retaining walls, and is structurally stable. In addition, when the gyven- It can be done efficiently. According to the present invention, because of the engineering characteristics of the gabion wire mesh, it is vulnerable to bending, thereby solving the problems of overburden and deformation overload when the earth pressure is increased. In addition, the present invention solves the problem that the stability of the whole garbage retaining wall becomes weak when the deformation of the garbage wall is accumulated through the accumulation. The present invention can cope with the displacement due to the earth pressure which is increased in the front wall laminating.

The present invention has an effect of increasing wall stability by forming a steel structure with a front wall. In addition, it is effective to control the displacement due to the earth pressure which is increased in wall lamination by applying a round geometry.

In the case of the existing Gobion retaining wall, the construction of the wire net was assembled in the field, the workability was lowered and the quality tended to depend on the skill of the worker. However, according to the present invention, a relatively constant quality can be ensured.

The present invention has the effect of preventing deformation of the front wall in the form of a comprehensible structure, solving the problem that the front wall is difficult to compaction and the deformation of the open wall is excessively generated in compaction. In addition, deformation is suppressed through the formation of the compartmentalized front wall.

The present invention basically has the effect of preventing rapid increase of water pressure on the back surface of the front wall due to drainage failure, which is a main problem of the reinforcement earth retaining wall and the rapid drainage of the ground surface infiltration water and groundwater.

According to the present invention, it is possible to improve the stability of the wire mesh structure and improve the stability of the wire mesh structure. The same material as the backfill material can be installed on the front wall to mitigate the difference in rigidity between the backfill material and the front wall, It is effective.

The present invention has the effect of facilitating transportation and construction compared to a concrete panel and a block, as compared with a concrete block or a panel of an expensive price. In addition, it is more advantageous to secure economical efficiency because it is simple in construction and excellent in workability compared to a gable wall which is assembled in the field.

According to the present invention, it is possible to produce a natural aesthetic appearance by filling natural stone, crushed stone and, if necessary, natural gypsum in the form of a wire mesh structure, and it is possible to produce vegetation as needed, thereby enabling excellent aesthetic appearance, environment and harmonious appearance.

1 shows a conventional block type reinforced earth retaining wall and its construction method.
2 shows a conventional gabion-retaining wall and its construction method.
3 is a view showing a reinforced earth retaining wall constructed by a block type reinforced earth retaining wall construction method which is one embodiment of the present invention. 4 to 7 illustrate a step of constructing a reinforced earth retaining wall according to the present invention. FIG. 4 conceptually shows the formation of one layer, FIG. 5 shows a state after the reinforcement cover is installed, FIG. 6 is a view showing that a layer is stacked on the layer according to FIG. 5 and a reinforcing material is installed. FIG. 8 shows a layer stacked on the upper part of the reinforcing member shown in FIG.
FIG. 8 is a conceptual view showing the stacked front structure block separated. FIG.
9 to 11 are views showing various front surface structural blocks and block fillers, FIG. 9 is a view illustrating a row and a multi-row front surface structural block in comparison with each other, and FIG. 10 is a cross- And FIG. 11 is a view showing that a mixed stone including soil or gravel is put into a block filler.
FIG. 12 conceptually shows that vegetation pockets and glazing plates are installed on the front structural block and vegetation is formed by the vegetation mat.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. It will be understood by those skilled in the art that the present invention may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know.

3 is a view showing a reinforced earth retaining wall constructed by a block type reinforced earth retaining wall construction method which is one embodiment of the present invention. 4 to 7 illustrate a step of constructing a reinforced earth retaining wall according to the present invention. FIG. 4 conceptually shows the formation of one layer, FIG. 5 shows a state after the reinforcement cover is installed, FIG. 6 is a view showing that a layer is stacked on the layer according to FIG. 5 and a reinforcing material is installed. FIG. 8 shows a layer stacked on the upper part of the reinforcing member shown in FIG.

First, the present invention basically comprises the steps of forming a slope part to form a slope or a clay part, and a step of forming a reinforced earth retaining wall 20 after the step of forming the foundation part 10 by pouring concrete or installing a crushed stones .

Reinforced earth "refers to earth reinforced so that the supporting structure such as a retaining wall increases the overall supporting force by arranging long bands such as metal, fiber and wood at appropriate intervals. A retaining wall, which is a structure for installing the reinforcing soils to prevent the soil from collapsing, is a 'reinforcing earth retaining wall' that is the object of the present invention. This is a method of inserting a reinforcing material having large binding force with soil into a reinforcing soil section, And reinforcing material between the reinforcements to integrate the two methods to reinforce the soil.

According to the present embodiment, a step of forming one layer of the front structural block 30 of the reinforcing earth retaining wall 20; Installing a filter mat (40) on the back surface of the front structural block (30); And forming a reinforcing soil section (50) by laying a backfill material (51) on the filter mat (40) to complete one end of the reinforcing earth retaining wall, and repeating the above steps at the upper end of the reinforcing earth retaining wall, The retaining wall 10 is constructed.

A reinforcing material 60 is installed between one end of the reinforcing earth retaining wall and the upper part of the reinforcing earth retaining wall. The front structural block 30 has a filling space 31 in which a block filler can be installed, And a lid (not shown) that fills the filling space 31 of the body 32 with the filling material and then covers an upper portion of the body.

The reinforced structured block 30 refers to one end wall material of the reinforcing earth retaining wall specialized according to the present invention. The wall material moves integrally with the reinforcing soil section and forms a side surface of the reinforcing earth retaining wall.

A plurality of the front structural part blocks 30 are provided side by side on the front surface of the soil erosion part to form one end, and a filler is filled in the front part structural block 30 to form a part of the front surface of the reinforced earth retaining wall. In the present specification, the expression 'one-tier' or 'one-tier' is used as needed, which refers to a part of the front surface of the reinforced earth retaining wall, and indicates some of the front surface building blocks stacked.

When one layer is formed, one or two or more front surface structural block layers are further formed on the front surface structural block layer so as to be entirely formed up to the front surface height of the reinforced earth retaining wall. Of course, the process of repeatedly filling the back side of the front structural block with a backfill material and forming a reinforcing soil section must be performed together. The upper end of the wall surface of the reinforcing earth retaining wall may be a protective cap or a finishing member.

The reinforcing material 60 plays an important role in the behavior of the reinforcing earth retaining wall 10, such as a so-called geogrid. In other words, it is generally made of a polymer material to make a lattice structure, but it has a high rigidity and plays a structural role to act as a reinforced earth retaining wall in the ground. The stiffener 60 may be installed on every layer of the front structural block 10, but it may be installed on some of the stratum in order to secure the design conditions in consideration of economy and workability. This will be applied differently depending on the size of the front structural block 30 and the design conditions. In this case, a layer to which the reinforcing material is not laid can be additionally applied to another reinforcing means as described later.

And the reinforcing soil section 50 is formed by the backfill material 51. When vertical stress is applied to the reinforcing soil section 50 provided with the reinforcing material 60, the soil tends to be deformed in the lateral direction, and frictional force for suppressing the deformation of the soil between the soil particles in contact with the reinforcing material 60 And a tensile force is generated in the stiffener. In this case, the tensile force generated by the reinforcing material is equal to the friction force generated between the soil and the reinforcing material. If the tensile strength of the reinforcing material is greater than the tensile strength, the reinforcing soil section 50 is maintained in a stable state. As a result, it can be considered that all soil particles directly in contact with the reinforcing material behave as if the reinforcing material and the reinforcing material are directly connected to each other. The reinforcing soil section 50 is integrally acting with the reinforcing material 60, And so on.

It would generally be economical to procure the block filler either on-site or on-site. It is preferable to use rocks (stream aggregates or crushed stone aggregates) mixed with appropriate particle sizes as in the case of the gabion-retaining wall. Generally, it is preferable not to use weathered rocks, rocks that are susceptible to weathering, and rocks containing iron in the case of Gavion retaining walls. However, unlike the wire mesh of the Gavion-retaining wall, the present invention can utilize stones, mixed stones, or gravel as well as fine granular rocks as the block filler. The use of various fillers in this way means that the filler material can be procured from the site itself or from the site, and the economics of construction can be ensured. Depending on the kind of the filler, a certain additional step (for example, a geotextile tube sealing or compaction described later) may be required, which will be described later in detail.

The filter mat (40) is an integral type filter mat that covers the backfill material on the back surface of the front structural part block (30), thereby preventing the backfill material from being disturbed and acting as an integral body. The filter mat may function as a geoid having a large binding force with the backfill material in the reinforced earth retaining wall. However, the filter mat should be structurally considered so as not to separate the reinforcing soil section from the consideration of the structure. The filter mat 40 prevents the leakage of the backfill material and prevents the backfill material from being disturbed, thereby enhancing the safety of the reinforced earth retaining wall. Particularly, as will be described later, when the block material is a rock, the front mat structural block 30 takes the form of a frame, and through the construction of the filter mat 40, Prevention. In addition, the filter mat (40) must be smoothly drained. The filter mat may be applicable if it can function to prevent the loss of backfill in any form, but it should be selected to be well drained.

The front structural block may be formed of a wire net 33. The wire mesh may generally be a wire mesh. The wire mesh refers to a net or net made of coarse wire, and a welded wire net welded to the contact point may be applied to this embodiment. It is needless to say that a net by the twist of the wire can be formed in addition to the welding. The wire mesh to be applied to the present invention may be either a square network or a rhombus network, and the mesh size of the wire mesh may be appropriately selected depending on the type and size of the filler. However, it should be understood that the material is not limited to iron, and it is within the scope of the present invention that it is responsible for the following functions.

If the front structural block is formed only of a wire mesh, it is similar to a gabion wall. In addition, even when the front structural block is formed by the structural frame as described later, the use of the wire net as in the open-close method can reduce the labor cost and the steel cost due to the utilization of the prefabricated wire net. The present invention can be said to be characterized by the fact that the present invention has the advantage of a gypsum-making method, which means a gypsum made of a wire containing a stone when the gypsum is piled up, but it is limited in the gypsum gypsum method. Particularly, the drainage property and the oyster property, which are advantages of the gavion process, can be directly applied to the present invention.

The front structural block may include a structural frame 34, and the wire net 33 may be fixed to the structural frame.

The structural frame is formed so as to form a filling space in which the filler material is installed, and the wire mesh is fixed to the structural frame so that the filler material in the structural frame does not escape from the frames. Although the structural frame has a hexahedral shape, it may be applied in various forms such as a cylinder shape, and the technical scope of the present invention is not limited to the shape of the structural frame.

The structural frame may be formed as a structural tube. Of course, the scope of the present invention is not limited to the fact that the frame must be a square tube. A structural frame can be made of a steel pipe or a synthetic resin material having a certain strength. Welding is preferred when the structural frame is made of structural steel pipes. For example, in the present embodiment, the front structural block 30 having a height of 30 centimeters and a depth of 55 centimeters is applied, and the wire net 33 has a width of 5 centimeters and a width of 5 centimeters. Respectively.

The lid may be integrally formed with the reinforcing member by extending to the backfill member and may be a reinforced lid 61 extending to the backfill member.

4 shows that a backfilling material 51 is formed on the back surface of the front structural block 30 to form a reinforcing soil section 50. FIG. The front structural part block 30 is installed, and the backfill material is laid and compaction is performed. It can be seen that the filler 35 is installed in the front structural block 30. [ The filler material in the drawing is sealed in the form of a tube by the geoscientific fibers, which will be described later in detail.

5 shows a cover which covers the top of the front structural block 30 and which is covered with a reinforced lid 61 extending to the back and functioning as a reinforcing member. 4 and 5 may be replaced with the reinforced lid 61 without laying a separate reinforcing material. This may be reflected in the design and may be applied with additional safety considerations.

The reinforcing lid 61 serves as a cover of the front structural block 30 and partially extends to the reinforcing soil section 50 to perform a function similar to the reinforcing material 60. [

Fig. 6 shows the construction of the additional stage by the same process on one end shown in Figs. 4 and 5. Fig. In this case, the reinforcing member 60 is provided according to the design. FIG. 7 shows the process shown in FIGS. 4 to 6 repeatedly.

The reinforcing lid 61 and the reinforcing member 60 may be selectively applied. That is, it is possible to selectively install the reinforcing member 60 or to make the reinforcing lid 61 function as the reinforcing member 60.

A binding pin 36 is formed on the upper part of the front structural block and the binding pin 36 is coupled to the reinforcing material 60 or the reinforcing lid 61 to form the front structural block 30, And the backfill material can be integrally moved. In addition, the binding pin may facilitate a binding between the front structural block and a guide function for stacking the front structural block at a predetermined position.

FIG. 8 is a conceptual illustration thereof. FIG. 8 is a conceptual diagram showing a separated front structural block.

9 to 11 are views showing various front surface structural blocks and block fillers, FIG. 9 is a view illustrating a row and a multi-row front surface structural block in comparison with each other, and FIG. 10 is a cross- And FIG. 11 is a view showing that a mixed stone including soil or gravel is put into a block filler.

The front structural block is divided into a front structural block 30a and a multiple structural front structural block 30b depending on whether a plurality of the filling spaces 31 are formed in one front structural block. As shown in FIG.

Meanwhile, the block filler 35 installed in the filling space 31 of the front structural block may be formed of not only fine-grained rock but also stalactite, mixed stone or gravel, It can be procured, which ensures the economical efficiency of construction. 10 shows a multi-row front surface structural block 30b in which a rock or a rubble is inserted, and FIG. 11 shows a mixed stone containing soil or gypsum as a block filler 35, The geosynthetic fiber 37 is disposed in the filling space of the front structural block, and the filler is installed, and the filler is sealed in the tubular shape with the geoscientific fiber. In the case where the block filler 35 is a fine-grained rock, it is easy to embed the block filler 35 in the wire net 33 itself. However, if the block filler 35 includes gravel, the block filler 35 may be lost. It uses geosynthetic fiber (37). In other words, it is possible to prevent the block filling material containing the gravel from being lost by the tube sealing of the geosynthetic fibers. By using this method, the gravel can be utilized in the front structural block, It is possible to utilize it.

The block filler 35 is required to be compacted, especially when it contains gravel. The present embodiment further includes a step of damping a block filler installed in the filling space of the front structural body. In the present invention having a structural frame, it is preferable that the block filler is subjected to compaction, because not only the structural frame is reflected in the structural design, but the front structural block makes structural behavior as a whole, . In particular, in the case where the filler is sand or mixed stone, it is preferable that the compaction step includes a sufficient compaction process, and the shape of the front structural block is specified for this purpose as described later.

In the present embodiment of the present invention, the front portion of the structural frame is a round portion 38 which is formed by projecting in a rounded shape forward. The reason why the round portion 38 is formed in the front surface portion of the frame is to prevent the development and deformation of the front surface structural block, particularly the wire net constituting the front surface structural block. This is because the folding phenomenon or deformation may be accompanied by displacement and become structurally weak. The round portion is formed to protrude in a round shape. The protrusion width D is preferably 20% to 30% of the protrusion height H, as in the present embodiment. The protrusion width D and the protrusion height H are as shown in FIG.

A round portion formed by projecting a front surface of the structural frame in a forward shape is formed in a forward direction, thereby effectively controlling the lateral displacement by the laminated earth pressure. That is, due to the material characteristics of the wire mesh, the wire mesh is deformed until the earth pressure generated in the stacking and the tensile force acting on the wire mesh become parallel. In some cases, excessive deformation exceeding the acceptable range may occur.

Therefore, the round portion 38 according to the present invention can minimize the additional deformation of the wire netting by adding an artificial deformation to the front surface so as to conform to the earth pressure acting on the wire netting, thereby securing the internal and external stability.

As a result of the test, it was found that the general rectangular parallelepiped shape caused an increase in the displacement acting on the wire netting toward the lower end of the retaining wall due to the upward earth pressure, whereas when the rounding portion 38 was formed, The load in the wire net was evenly distributed, the horizontal displacement was reduced by 65% or more, the stress concentration phenomenon did not occur, and the lateral force also tended to decrease remarkably. As the height of the retaining wall structure increases, the horizontal displacement and the generated axial force increase. As a result, the round portion 38 according to the present invention reduces horizontal displacement and generated axial force, There is a technical effect that it is possible to effectively cope with the direction load and at the same time to achieve the structural stability of the wire mesh binding portion.

It is preferable that the protrusion width D of the round portion is 20% to 30% of the protrusion height H. As a result of analyzing the maximum displacement value in the case where the ratio of the protruding width D to the protruding height H of the round portion 38 is variously varied, the protruding width D of the round protruding portion 110a ) Is about 24.5% of the protrusion height (H), the maximum displacement value is the lowest, and it is shown as a constant low range within the range of 20% to 30% of the maximum height. However, And the displacement value was rapidly increased. Therefore, the protruding width D of the round portion 38 is preferably about 25% of the protruding height H, and is preferably in the range of 20% to 30%.

On the other hand, the structural frame 34 may interfere with the compaction unit when the block filler is laminated. In this case, the long side frames of the structural frame and the side frames of the structural frame may interfere with the compaction device, which may make it difficult to continuously compose or interfere with the internal frames of the multi-row front structure block.

The structural frame includes an outer frame 34a of the front structural block and an inner frame 34b of the front structural block. The height of the inner frame 34b is lower than the height of the outer frame 34a Or the height of the side frame 34c of the outer frame may be lower than that of the front frame or the rear frame 34d of the structural frame so that continuous compaction in the direction of the line can be made possible. Each frame is as shown in FIG.

The inner frame 34b is structurally required when the size of the front structure block is large. When the height of the side frame 34c and the inner frame 34b of the outer frame is low, . In other words, it is desirable to compile while continuously moving the upper part of the front part structural block, which is formed with a long compaction unit, to prevent the compaction unit from interfering with the inner frame 34b and the side part frames 34c, To be able to comprehend. This can significantly improve the efficiency of the compaction process. For example, in the present embodiment, the height of the structural frame of the front structural block is about 30 centimeters. When the height of the side frame 34c and the internal frame 34b is lowered by about 5 centimeters, . This will lead to an increase in site construction and, as a result, the construction cost and construction period can be shortened. In the case where the present invention is applied, it is very effective when compaction is performed by a human force with a small compaction device, but the present invention is not limited to this, and any kind of compaction can obtain a certain effect.

This embodiment includes any one of the vegetation pockets 70 and / or the glazing plate 80 fixed to the front surface of the front structural block, wherein the geotextile is a vegetation mat, . FIG. 12 conceptually shows that vegetation pockets and glazing plates are installed on the front structural block, and vegetation is formed by the vegetation mat. The gilded plate can be installed in a hanging shape, and it can express necessary patterns, shapes or letters.

Although the present invention has been described by way of a specific embodiment, the present invention is not limited thereto. It is needless to say that modifications and variations are possible within the scope of the technical idea of the present invention.

10: Foundation
20: Reinforced earth retaining wall
30: Front structural block
30a: Linear front structural block
30b: multi-row front structure block
31: Fill space
32: Body
33: Wire mesh
34: Structural frame
34a: outer frame
34b: inner frame
34c: side frame
34d: front or rear frame
35 :: block filler
36:
37: Geo fiber
38: Round section
40: filter mat
50: Reinforced soil section
51: Backfill material
60: Stiffener
61: Reinforced cover

Claims (17)

A method of constructing a reinforced earth retaining wall after a foundation forming step for forming a foundation by pouring concrete or crushed stone,
Forming a layer of a front structural block of the reinforcing earth retaining wall;
Installing a filter mat on the back of the front structural block; And
And filling a backfill material on the filter mat to complete the end of the reinforcing earth retaining wall,
The reinforcing soil retaining wall is constructed by repeating the above steps at the upper end of the reinforcing earth retaining wall,
A reinforcing material is installed between one end of the reinforcing-retaining wall and the upper portion thereof,
Wherein the front structural block includes a body in the form of a housing having an open top and a filling space in which a block filler can be installed, and a cover covering the top of the body after filling the filling space with the filling material, Featured
Construction method of reinforced earth retaining wall
The method according to claim 1,
Wherein the filter mat covers the backfill material on the back surface of the front structural part block to prevent the backfill material from being disturbed or lost, thereby acting as an integral filter mat
Construction method of reinforced earth retaining wall
The method according to claim 1,
Wherein the front structural block is formed of a wire mesh
Construction method of reinforced earth retaining wall
The method of claim 3,
Wherein the front structural block includes a structural frame, and the wire net is fixed to the structural frame.
Construction method of reinforced earth retaining wall
5. The method of claim 4,
And the structural frame is formed as a structural tube
Construction method of reinforced earth retaining wall
The method according to claim 1,
Characterized in that the lid is integrally formed with the reinforcing member by extending to the backfill material
Construction method of reinforced earth retaining wall
The method according to claim 1,
Wherein the lid is a reinforced lid extending to the backfill material,
Characterized in that the reinforcing lid and the reinforcing material are selectively applied to the layers
Construction method of reinforced earth retaining wall
The method according to claim 6,
Wherein a binding pin is formed on an upper portion of the front structural block and the binding pin is engaged with the reinforcing material or the cover to enable the front structural block and the back filling agent to move integrally with each other
Construction method of reinforced earth retaining wall
The method according to claim 1,
Wherein the block filler comprises gypsum,
Wherein the filler material is sealed in a tubular form with the geosynthetic fiber, wherein the geosynthetic fibers are disposed in the filling space of the front structural block and the block filler is disposed therebetween,
Construction method of reinforced earth retaining wall
5. The method of claim 4,
Wherein a front portion of the structural frame is formed with a round portion protruding forward in a round shape
Construction method of reinforced earth retaining wall
11. The method of claim 10,
Wherein the round portion is formed to protrude in a round shape, and the protrusion width is 20% to 30% of the protrusion height
Construction method of reinforced earth retaining wall
5. The method of claim 4,
Further comprising the step of dewatering the filler material poured into the front surface structural block body filling space
Construction method of reinforced earth retaining wall
13. The method of claim 12,
Wherein the structural frame comprises an outer frame of the front structural block and an inner frame of the front structural block,
Wherein an upper portion of the inner frame is lower than an upper portion of the outer frame,
So that the compaction unit and the inner frame are not interfered with each other
Construction method of reinforced earth retaining wall
14. The method of claim 13,
The upper portion of the side frame of the outer frame is formed lower than the upper portion of the front portion or the rear portion of the structural frame,
So that the compaction unit and the side frame do not interfere with each other
Construction method of reinforced earth retaining wall
The method according to claim 1,
And a vegetation pocket or a pattern plate fixed to the front surface of the front structural block.
Construction method of reinforced earth retaining wall
10. The method of claim 9,
Wherein the geoscientific fiber is a vegetation mat, and vegetation is formed on the front structural block
Construction method of reinforced earth retaining wall
A construction method of a reinforced earth retaining wall according to any one of claims 1 to 16,
Reinforced earth retaining wall

Images