KR101696854B1 - Various assembling construction methods of E shaped precast concrete block retainning wall - Google Patents

Abstract

The present invention relates to a method for realizing a precast concrete E block retaining wall made of segments in a manner similar to a reinforcing earth retaining wall so as to be applicable as a retaining wall for various purposes. The method of applying to the retaining wall, and the method applied to the soundproof wall retaining wall. For this method, the method of constructing by using the method of installation in the past and the elements of each retaining wall are disassembled and assembled, Unlike the above two methods in which a steel bar is inserted and a bottom plate and a front wall are tightly coupled to each other, an E-shaped block using a subwall is installed by various mounting methods to achieve both external and internal stability, Because of different methods of assembling according to site conditions, And, retaining walls, sound barriers is assembled in a variety of construction methods of the precast concrete retaining wall block E constituting the structure to resist wind pressure,
The present invention has a first effect that the construction can be simplified and the ease of construction is improved,
Since it is manufactured by PC at the factory, it has excellent quality and the second effect that the air is shortened by carrying and assembling installation work,
The third effect that the thickness of the sphere can be reduced and the economical efficiency is improved,
The fourth effect which is easy to install and apply without limit to the site conditions up to the embankment, the cut soil and the soundproof wall,
E-block shape and is bound to a fiber reinforcing material such as a reinforcing soil block,
A sixth effect that the concrete E-block retaining wall for each portion is bundled by inserting the reinforcing bars in the insertion hole to form a single structure,
The seventh effect is that the fiber reinforcement band can be installed on the rear wall unlike the reinforced earth retaining wall so that the cause of defects due to the back water pressure can be eliminated,
It is possible to design a colored and embossed pattern on the front wall of the retaining wall,
A ninth effect that the fiber reinforcement band plays a role as an anchor to resist the earth pressure by binding using a band bundle in the two-row parallel stacking of the E block retaining wall and the one-
The 10th effect of constructing vegetation without a large increase in construction cost can be expected.

Description

       [0002] Various assembling construction methods of E-shaped precast concrete block retaining wall [

The present invention relates to a method for realizing a precast concrete E block retaining wall made of segments in a manner similar to a reinforcing earth retaining wall so as to be applicable as a retaining wall for various purposes. The method of applying to the retaining wall, and the method applied to the soundproof wall retaining wall. For this method, the method of constructing by using the method of installation in the past and the elements of each retaining wall are disassembled and assembled, Unlike the above two methods in which a steel bar is inserted and a bottom plate and a front wall are tightly coupled to each other, an E-shaped block using a subwall is installed by various mounting methods to achieve both external and internal stability, Because of different methods of assembling according to site conditions, And, retaining walls, sound barriers, the present invention relates to a variety of construction methods for assembling the precast concrete retaining wall block E constituting the structure to resist wind pressure.

There is a block type retaining wall having a structure that is made of a general precast and improved in rigidity during construction for assembly and construction, and an " extended precast block of a retaining wall and a method of constructing a retaining wall using the same ", which is disclosed in Korean Patent Registration No. 10-1315290 have.

The extended precast block of the retaining wall includes a plate-shaped wall portion formed in a vertical direction from a bottom portion supported by a ground or a foundation, and a shape disposed on the upper side of the bottom portion and vertically penetrating The wall portion and the upper plate portion are formed in a pre-casting manner. The improved pre-cast block has improved workability, mobility and rigidity as a retaining wall, There is an advantage that a structure arranged on various roads and railways can be formed according to the selection of the direction length.

       A detailed description of the retaining wall may be such that the bottom portion of the retaining wall has a protruding portion protruding toward the inner periphery of the poured portion, and the fastening force between the bottom portion and the top plate is improved. In addition, it is possible to further include a top plate straining member arranged in a transverse direction and arranged so as to cross the arrangement of the top plate portion and the ridge portion, and the stiffness at the time of pouring is improved and the fastening force is excellent. The stone tongues are preferably arranged in two rows in the longitudinal direction, and the rigidity at the time of concrete pouring is further improved.

       Meanwhile, the upper plate portion has a step portion extending downward so that the end portion side of the bottom portion is closely contacted with the inner surface. It is possible to accurately assemble the display portion in the field, and the wall portion has a plurality of walls fastened to each other in the height direction And the workability and mobility can be further improved.

       In addition, it is possible to further include a longitudinal tensional member arranged to penetrate the plurality of walls and the bottom portion in the longitudinal direction, whereby the fastening force between the bottom portion and the walls is excellent, and the rigidity of the retaining wall is improved. Preferably, the bottom portion has a shape corresponding to a bottom surface of the wall portion and has a groove portion into which a part of a lower end portion side of the wall portion is inserted, and can be accurately installed.

       It is further contemplated to further include a transverse tensional element disposed to transverse the wall or bottom portion, wherein the transverse tensional element is disposed through adjacent pre-cast blocks and may provide a tensile force, The robustness is improved.

       In addition, it is preferable for the wall portion to have a protruding portion protruding from one side and to have a groove portion corresponding to the protruding portion on the other side in order to improve the assembling property and the sealing performance. The sealing member may further include a sealing member interposed between the grooves of the cast block, and the airtightness of the connecting portion of the retaining wall is improved.

       The apparatus may further include a cover member disposed to cover the front surface or the rear surface of the adjacent precast block connecting portion. On the other hand, a method of constructing a retaining wall using the precast block, includes the steps of: placing a bottom portion on a ground or foundation; placing a top plate on an upper surface of the bottom portion; And a retaining wall of a rigid structure is provided while the workability is improved. And a fastening step of disposing the plurality of walls and the bottom surface portion in the height direction and passing the longitudinal tension member after the seating step, and the mobility is improved, and the assembly is robust. And a connecting step of disposing the top plate tension member so as to traverse the arrangement of the tongues to be exposed in the poured portion of the top plate after the top plate positioning step. Therefore, the rigidity of the retaining wall by combination of the precast block and the precast block can be further improved.

The method may further comprise the step of the plurality of precast blocks being in close contact with one another and the transverse straining members being disposed through the plurality of precast blocks, thereby increasing the robustness by the prestress

However, in the case of the above-mentioned patent, the base of the retaining wall is constructed so as to be massive, so that it is not possible to load a large number of vehicles in the vehicle according to the weight and size when the vehicle moves on the road after production. However, it is difficult to calculate the moment of inertia due to the displacement due to the transverse earth pressure, and it is difficult to calculate the moment of inertia. The use of the PC steel wire in the vertical and horizontal directions can cause the bending in the process of tightening the PC steel wire and the attempt to reduce the concrete material by forming the front wall with the concave steel However, since a considerable rigidity is required on the convex side, there is a problem that the concave side may be rather uneconomical. The.

Korean Patent No. 10-1315290

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide an E1 block manufactured from an E shape at the beginning and an E2 block connecting a rear wall at the center in a C shape, a front wall panel, And E3 blocks combining the E3 blocks are selected according to the transportation distance and the installation amount. In the construction method in which the E3 blocks are stacked, it is possible to divide the E3 block into the indentation method and the belt accumulation method. In the cut- And it can be applied by vertical stacking method when it is used as a soundproof wall retaining wall. All of these can be constructed by appropriately selecting a method according to the site conditions, so that construction is easy, workability is improved, air can be remarkably shortened , It is possible not only to make the cross section of the E block retaining wall spheres thinner, It can be changed in the horizontal direction, and it is possible to make it possible to adjust the thickness of the spherical sphere through separate calculations for each retaining wall end. Therefore, it is possible to reduce the amount of concrete, thereby reducing the construction cost. In addition,

In addition, it is a second object of the present invention to provide a general purpose application of a retaining wall in a place where a retaining wall is required, without any limitation in the field conditions. And to achieve clear visible results in economic efficiency. As a key to making this possible, an E-shaped block is implemented. In this construction, the fiber reinforcement tied to the E-block retaining wall is bound to the soil nailing buried in the ground, so that it is secured to the transverse earth pressure. Thereby reducing the thickness of the front wall.

In addition, while mounting the E-block retaining walls and mounting the E-block retaining walls while mounting the reinforcing bars in the insertion holes provided at the time of manufacturing the E-block retaining walls, the entire E-block retaining walls are bundled to form a single structure, And the third purpose is to minimize maintenance.

In order to accomplish the above object, the present invention provides a method of increasing the size of an E-block retaining wall for each portion to increase the size of a retaining wall so as not to generate any one of folding, sinking, breakage, The method of construction to the retaining wall of the embankment and the construction method to the retaining wall of the cut-off part and the construction method of the soundproof wall retaining wall are variously applied to the method of assembling the precast concrete E block retaining wall in the indentation method As a result,

A foundation installation step (SlO) of installing a buried wall retaining wall foundation and a shear key,

(S20) assembling and installing precast concrete E-block retaining walls,

A step (S30) of bundling and binding the band bundle, which is installed at a certain distance from the opening of the back wall of the pre-cast concrete E block retaining wall, by a fiber reinforcement band;

(S40) of installing and backfilling the drain board and compaction,

And repeating the steps S10 to S40 (S50).

The present invention also provides a method of assembling a pre-cast concrete E block structure,

(S10) of performing soil nailing with top-down method together with soil cutting work,

(S20) of setting the foundation of the cut-off retaining wall and the foundation of the site to the inclined micro-pile anchor (S20)

A step (S30) of assembling and installing a pre-cast concrete E block retaining wall,

(S40) binding the soil nailing or tilting micropile anchor to the E block retaining wall,

A step (S50) of installing drainage facilities and backfilling and compaction,

And repeating the steps S10 to S50 (S60).

Further, in the vertical stacking method among various assembling methods of precast concrete E block retaining walls,

(S10) of integrating the soundproof wall retaining wall foundation trench and the bottom plate with the concrete E block retaining wall made by precast and integrating them into a vertical micro pile anchor (S10)

(S20) of fixing a fiber reinforcement band to the rear wall attached to the E block retaining wall,

(S30) assembling and installing the sound barrier wall facilities.

The present invention has a first effect that the construction can be simplified and the ease of construction is improved,

Since it is manufactured by PC at the factory, it has excellent quality and the second effect that the air is shortened by carrying and assembling installation work,

The third effect that the thickness of the sphere can be reduced and the economical efficiency is improved,

The fourth effect which is easy to install and apply without limit to the site conditions up to the embankment, the cut soil and the soundproof wall,

E-block shape and is bound to a fiber reinforcing material such as a reinforcing soil block,

A sixth effect that the concrete E-block retaining wall for each portion is bundled by inserting the reinforcing bars in the insertion hole to form a single structure,

The seventh effect is that the fiber reinforcement band can be installed on the rear wall unlike the reinforced earth retaining wall so that the cause of defects due to the back water pressure can be eliminated,

It is possible to design a colored and embossed pattern on the front wall of the retaining wall,

A ninth effect that the fiber reinforcing material band plays a role as an anchor to earth pressure by bundling using a band bundle in the double row parallel building of the E block retaining wall,

The 10th effect of constructing vegetation without a large increase in construction cost can be expected.

1 to 11 are views showing a first embodiment according to the present invention,
BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing a process flow for a work process for installing a clay retaining wall of the present invention
Fig. 2 is a typical view showing a three-dimensionally exploded view of a prefabricated concrete E1 block retaining wall constructed by indenting a building wall retaining wall
3 is a view schematically showing the floor plan of the E1 block retaining walls, including the details of the connection restraint detail 2 between the back wall concave detail 1 and the adjacent E1 block retaining wall
4 schematically shows detail 3 binding the fiber reinforcement bands for single row overlaying and detail 4 and 5 binding the fiber reinforcement bands for double row parallel indentation
Fig. 5 is a schematic view showing a three-dimensionally developed development of installing a precast concrete E2 block retaining wall in an embankment retaining wall
6 is a view schematically showing an E2 block retaining wall plan view;
Fig. 7 is a representative drawing showing a three-dimensionally developed development in which the precast concrete E3 block retaining wall is built by stacking in a clay retaining wall
8 schematically shows a top view of the E3 block retaining wall, detail 6 connecting the front wall to the rear wall, and detail 7 connecting and restraining the adjacent E3 block retaining walls
9 is a view schematically showing a side surface on which a pre-cast concrete E block retaining wall is stacked in a stacking manner
10 is a view schematically showing a side surface of a precast concrete E block retaining wall stacked in a stacking manner
11 is a view schematically showing a side in which a step is formed by stacking an E-block retaining wall in order to prevent slipping due to earth pressure in a stacking manner
12 schematically shows details of a drainage pipe for drainage and a gravel layer provided at the lower part of the back wall of the E block retaining wall;
13 to 17 are views showing a second embodiment according to the present invention,
13 is a view showing a process flow for a work process for installing a cut-off retaining wall of the present invention
14 is a view schematically showing a side surface of a pre-cast concrete E block retaining wall stacked in a stacking manner on a cut-away portion retaining wall and bound to a sole nailing by a fiber reinforcement band
15 is a view schematically showing a front surface of an E-block retaining wall engaged with an inclined micro-file anchor
Fig. 16 is a view schematically showing side surfaces of the E-block retaining wall, which are provided with microfibers instead of the fiber reinforcement bands in Fig. 14,
17 is a view schematically showing the details of a plane, an end face,
18 to 21 are views showing a third embodiment according to the present invention,
18 is a view showing a process flow for a work process of installing the soundproof wall retaining wall of the present invention
Fig. 19 is a typical view showing a three-dimensionally developed development of a pre-cast concrete E1 block retaining wall installed vertically and connected to a foundation bottom plate at a soundproof wall retaining wall
20 is a view schematically showing a plane in which a bottom bottom plate and an E block retaining wall are integrally joined and a vertical micro pile is installed;
21 is a view schematically showing a side of a soundproof wall retaining wall that is bonded to a foundation with a precast concrete E block and provided with a fiber reinforcement band

In the present invention, the present invention can be applied to all fields ranging from embankment and cut-to-earth retaining walls to soundproof wall retaining walls by using various assembling methods of pre-cast concrete E block retaining wall 1. In the prior art, It is possible not only to reduce air and construction cost in the retaining wall of any condition such as clay and cut, but also to realize all-weather construction and various stacking method without any restriction on height and length of retaining wall. So that the construction can be easily constructed with the retaining wall of the above-mentioned shape, thereby simplifying the process.

In the meantime, since various implementations of the present invention are possible, the preferred embodiments of the present invention will be described with reference to the accompanying drawings.

1st Example

As shown in FIG. 1, the present invention is applied to a clay retaining wall structure,

A foundation installation step (SlO) of installing a buried wall retaining wall foundation and a shear key,

(S20) of assembling and installing precast concrete E-block retaining wall 1,

A step (S30) of bundling and binding the band bundle, which is located at a certain distance from the opening of the rear wall of the E block retaining wall,

A step S40 of installing and backfilling the drain board 114 and compaction,

And repeating the steps S10 to S40 (S50).

Accordingly, the flow of the present invention and the respective constitutions thereof will be described by dividing each of the above steps into processes.

Retaining wall  Foundation tearing and Shek and Field installation  Basic installation steps ( S10 )

In this step, as shown in FIGS. 2, 5, and 6, in order to form a pre-cast concrete E block retaining wall 1, a foundation trowel is firstly installed at a location where a retaining wall is to be installed, (1), which is made of precast which is placed on the upper part of the foundation (1), in order to support the weight of the concrete E block retaining wall (1) As shown in FIG. 9, the bottom surface must be widened as shown in FIG. 9 so as not to generate a buoyant force. The slider 121 is applied with a shear key 121 to improve safety, and the center of gravity is guided to the back side .

It is a matter of course that the above-mentioned basic facilities need to satisfy three external conditions such as bearing capacity, conduction and sliding that can often occur in the retaining wall. However, since the present invention is constructed in block form like a reinforced earth retaining wall and constructed in a built- Since the same phenomenon as folding, sinking, breakage, warping which may often occur in the reinforced earth retaining wall may occur, the first step of the safe facility to prevent this is the above-mentioned foundation facility.

Precast  Concrete E block Retaining wall  Assembly step ( S20 )

This step is a step of assembling and installing the pre-cast concrete E block retaining wall 1, which corresponds to each other at the retaining wall of the embankment, and can be divided into the indentation and the overlaying. It can be regarded as a mutually facing structure in which two lines are juxtaposed and stacked in parallel, and it can be seen that it is piled up in a row in a row at a low hill to secure the site to be built in.

However, it is important to recognize that there is a risk factor that can cause re-assembly at the time of assembling because the conventional retention retaining wall has a small product retention. In order to solve this problem in the present invention, The inventors have devised the invention so that the shape is E-shaped. The reason for this is that the stiffener must be staggered like a reinforcing earth retaining wall, so that the structure having the back wall in place of the rear wall 2 But it is made by putting reinforcing bars in large size and it is excellent in safety.

Since the above-described indentation method is an important factor for realizing external stability factors such as breakage due to shearing and conduction between the retaining wall blocks and invasion and sliding, the E block retaining wall 1 In order to further reinforce the stacking method, the E-block retaining wall 1 is divided into a plurality of E-block retaining walls 1, It is possible to achieve the same effect as the cast-in-place retaining wall.

Here, the indentation is not limited to the indentation in the present invention, as it can be carried out by stacking the indentations even further in the manner shown in FIG. 10 according to the field conditions.

On the other hand, if the piling method is described in detail,

As shown in FIG. 9, the indentation is pushed from the base foundation slightly to the back side, and is set so as to form a certain angle from the upright. Therefore, when viewing from the front side of the retaining wall, the visual stability can be obtained and the center of gravity can be guided to the back side. , It is effective, but the utilization side of the site at the upper part of the retaining wall and the piling method in which there is a disadvantage that the whole of the retaining wall can not be vegetated,

As shown in FIGS. 10 and 14, when the E-block retaining wall is stacked, a plurality of types of plants such as a grasshopper, a grasshopper, and a vine are used as a method of stacking a certain distance so as to enable vegetation. And it can be applied for the purpose of pursuing eco-friendliness. It has a favorable aspect in that it plays a role in reducing the amount of backfill in the cut part, but it is insufficient in terms of utilization of the site at the upper part of the retaining wall because it pushes a considerable distance toward the back side.

Since the E-block retaining wall 1 is manufactured by a prefabricated pre-cast concrete structure, there is always a risk factor for repositioning according to the stacking method and the back-filling condition at the time of assembling, It should be noted that the method should be adopted. In order to achieve this, the stability is the top priority, and the shape is E-shaped. The reason is that the back wall 2 is to be laid on top of the reinforced earth retaining wall or stacked vertically. It is the most suitable structure in the structure that there is a support in the seat. It is possible to increase the height of the retaining wall by changing the generating direction of the structural force by providing the rear wall and facilitating the mounting of the retaining wall.

On the other hand, when the shape of the pre-cast concrete E block retaining wall 1 is described in detail,

First, the E-block retaining wall 1 comprises an E1-block 101, which is an E-shaped finished product, and an E2-block 102, which is formed by assembling a rear wall 2 in a central U- And the E3-block (103) product formed by assembling the panel and the back wall (2) each in the form of an E-shape. The reason for this classification is that various restrictions This is because it is not possible to produce large-scale products due to the regulations, and it is necessary to maintain the proper size and weight when installing the crane in the field. If the size is too large, This is because it is judged that it is appropriate to make it to the standard.

As shown in FIG. 3, the front wall and the rear wall 2 of the pre-cast concrete E block retaining wall 1 are integrally formed as shown in FIG. 3. The pre-cast concrete E block retaining wall 1 is installed in left and right The E1 block 101 is constrained to be fixed at a predetermined height by using a coupling bolt 106 as shown in detail 2 of FIG. 3, and a reinforcing bar is inserted into the insertion hole 105 to integrate upper and lower blocks In order to prevent the sagging from occurring, the installation method is as follows. (1) Insert a reinforcing bar into blocks (1) and (2) to bind blocks 1 and 2, insert reinforcing bars into a 1/2 insertion hole 105 inside the block 2, 3, the blocks are connected to each other, the block 4 is placed on the block, and the block 4 is inserted by inserting the insertion reinforcing bars 112, As shown in the figure, As shown in FIG. 11, since the recessed convex 108 is provided to prevent the occurrence of lateral displacement, an indentation step 110 is formed at any position of the rear wall to prevent slippage due to the earth pressure , The fiber reinforcement band 107 is wound around the band opening 104 formed at a predetermined interval of the height of the rear wall 2 as shown in FIG. 2, so that the band bundle 113 or As shown in detail 3 of FIG. 4, a structure that can be bound to the concrete block 127 is formed.

On the other hand, since the fiber reinforcing band 107 used in this case has a self-elongation because the material thereof is made of a fiber material, an excessively loud volume due to an excessive back earth pressure may be generated to cause a reinforcement wall call, The length of the rear wall 2 is preferably adjusted to the length from the lowest point to the uppermost point depending on the influence of the earth pressure and the height of the retaining wall The length of each step can be varied without fixing.

6, the E2-block 102 is formed by integrally forming the front wall and the rear wall of the retaining wall integrally with each other. Further, the E2-block 102 is formed by joining a rear wall separately formed on the center side with the front wall, As shown in detail 2 of FIG. 3, for the restraint with the E2-block 102 installed at the left and right sides, the fastening bolts 106 are used for constrained fastening at constant intervals of height. At the center side, A guide claw 111 is provided at the center of the back wall of the wall so that the rear cowl 2 can be installed at the center of the back wall 2. A binding claw 109 provided at a predetermined position of the rear wall 2 fitted between the guide claws 111, The rear wall 2 of the center portion can be fixedly installed without being separated from the rear wall 2 due to the rear earth pressure and the upper and lower blocks are integrated by inserting the reinforcing bars into the insertion hole 5 1 block 101, As shown in detail 1 of FIG. 3, the upper and lower walls of the rear wall are provided with a concave convex portion 108 to prevent the lateral displacement, and as shown in FIG. 11, 5, the fiber reinforcing band 107 is formed through the band opening 104 formed at regular intervals of the height of the rear wall 2, as shown in FIG. 5, To form a structure that can be bound to the concrete block 127 as shown in the band bundle 113 in FIG. 4 and detail 3 in FIG. 4, as shown in details 4 and 5 of FIG.

On the other hand, since the fiber reinforcing band 107 used in this case has a self-elongation because the material thereof is made of a fiber material, an excessively loud volume due to an excessive back earth pressure may be generated to cause a reinforcement wall call, The length of the rear wall 2 is preferably adjusted to the length from the lowest point to the uppermost point depending on the influence of the earth pressure and the height of the retaining wall The length of each step can be varied without fixing.

7, the E3-block 103 is formed by separating the front wall and the rear wall 2 of the retaining wall from each other. In the E3-block 103, the E2-block 102 and the E2- The rear wall 2, which is separately manufactured using the same method, is constructed by being coupled with the front wall. In the middle part, a guiding jaw 111 (see FIG. 8) By fastening the coupling shafts 109 provided at the predetermined positions of the rear wall 2 sandwiched between the two guide flanks 111, the rear wall 2 of the center portion is pressed by the rear earth pressure to the rear 8, a coupling method at the center side is applied as it is at both ends of the front wall panel to which the front wall panel is connected, Put the reinforcing bars between the upper and lower blocks. The upper and lower surfaces of the rear wall 2 are provided with concave convex portions 108 as shown in detail 1 of FIG. As shown in FIG. 11, since the slope is prevented from being generated by the earth pressure by forming the step 110 at a certain position on the rear wall, as shown in FIG. 11, the rear wall 2 The fiber reinforcement band 107 is wound around the band opening 104 formed at regular intervals of the height of the fiber reinforcing member 107. As shown in details 4 and 5 of FIG. 4, as shown in the band bundle 113 or the detail 3 of FIG. 4, (127).

On the other hand, since the fiber reinforcing band 107 used in this case has a self-elongation because the material thereof is made of a fiber material, an excessively loud volume due to an excessive back earth pressure may be generated to cause a reinforcement wall call, The length of the rear wall 2 is preferably adjusted to the length from the lowest point to the uppermost point depending on the influence of the earth pressure and the height of the retaining wall The length of each step can be varied without fixing.

A step (S30) of bundling a band bundle, which is located at a certain distance from a rear band wall opening of the precast concrete E block retaining wall,

The pre-cast concrete E block retaining walls 1 are sequentially stacked and bound to the fiber reinforcing band 107. The binding sites are located at three positions on the rear wall 2 and a plurality of band openings 104 The band opening 104 is wound around the fiber reinforcing band 107 to be fixed in the ground. In the case of a double row parallel retaining wall in the fixing method, as shown in details 4 and 5 of FIG. 4, It is preferable that the concrete block 127 is rolled and tied tightly. In the case of the single-row reinforced retaining wall, it is preferable that the concrete block 127 is rolled up as shown in detail 3 of FIG. This is because the reinforcement earth retaining wall, which is a method of buried in a loose state, is often designed to prevent creeping due to soil pressure, which is a pressing phenomenon caused by earth pressure. Therefore, the fiber reinforcement band 107 is tied in a pulled- It can exhibit more stability than the reinforced earth retaining wall.

On the other hand, the binding method by the fiber reinforcing band 107 is different from that of the embedding wall of the embankment, in that the embedding and the embedding are different. In the two-row stacking method, After the fiber reinforcement bands 107 are placed in contact with each other, both ends of the band bundle 113 are inserted into the respective arcs of the fiber reinforcement bands 107 and rotated as shown in detail 4 of FIG. 4, The reinforcing band 107 is tensed to be tangent to the band bundle 113 and fixed in the ground so that the fiber reinforcing band 107 is not loosened. Even if the E block retaining wall 1 tries to move in the front direction due to the action of the earth pressure by interposing the concrete block as shown in detail 3 in FIG. 4 on the fiber reinforcing band 107 which is bundled up to a certain length in the longitudinal direction Concrete block is to be configured to exert a resistance.

However, since the band bundle 113 is reversely rotated due to the action of the E-block retaining wall 1 on one side, the band bundle 113 fixed in this way can be loosened and tied, It is preferable to arrange a plurality of band bundles 113 in a bundle so as to prevent the band bundles 113 from being influenced by reverse rotation as shown in detail 5 of FIG.

Drain board  With installation Backfilling  A step of backfilling and compaction ( S40 )

The drain board 114 is installed on the back surface of the E block retaining wall 1 and the back board 114 is mounted on the back surface of the E block retaining wall 1, Since it is used to reduce the ground water so that the water pressure does not act on the back surface of the retaining wall 1, it is disposed on the back surface of the front wall of the E block retaining wall 1. In principle, backing up and compaction are performed by back- Is not generated.

On the other hand, when the fiber reinforcing band 107 reaches a position where the fiber reinforcing band 107 can be bundled in the back and compaction process, the band reinforcing band 113 is used to tie the fiber reinforcing band 107 and to fix the band And the fiber reinforcing band 107 is fastened and fixed by using the concrete block 127, and then the backing and compaction are continued.

remind S10 ~ Up to S40  Repeating the process ( S50 )

This step repeats a series of steps in the previous step. The installation process is the same as that of the retaining wall due to the height of the retaining wall. .

Second Example

As shown in FIG. 13, the present invention is applied to a belt-laying structure in a cut-

(S10) of constructing the soil nailing (3) together with soil cutting work by a top-down method,

(S20) of fixing the foundation of the cut-off retaining wall and the founding foundation to the inclined microfile anchor 122,

A step (S30) of assembling and installing a pre-cast concrete E block retaining wall 1,

A step (S40) of binding the soil nailing (3) or the inclined micro-pile anchor (122) to the E-block retaining wall (1)

A step (S50) of installing drainage facilities and backfilling and compaction,

(S60) of repeating the processes of S10 to S50,

Each of the above-described steps is divided into processes, and the flow of the present invention and the respective configurations are separately described.

Soil nailing  Top-down method with soil cutting work S10 )

In this step, since the protection facility should be installed in order to prevent the slope collapse while excavating the cut slope face, the slope slope is reinforced by the method of reinforcing the soil nailing (3) in order to install the wedge device A protective hole is provided while being cut so as not to collapse the cut slope having a proper height to be installed on the retaining wall so as to form an aggregate so as to be formed by progressing from the upper end to the lower end.

14, the pre-cast concrete E block retaining wall 1 is placed while gradually progressing from the lower end to the upper end. The pre-cast concrete E block retaining wall 1 is placed on the sole nailing 3, Of the E-block retaining wall (1) by binding and backfilling the fiberboard reinforcement band (107), or by binding two front panel plates to the inclined micro-file anchor (122) .

This is more advantageous in that it is inexpensive in terms of cost and site securing compared to a top-down type crush-retaining wall that is installed on slope slope, and stabilizes the whole settlement.

Cut-off retaining wall  Foundation tearing and Field installation  Slope foundation Micro file to anchor  Settlement step ( S20 )

In this step, as shown in FIG. 14, in order to form a pre-cast concrete E-block retaining wall 1, a foundation trowel is first installed at a location where a retaining wall is to be installed, And fixing the sloped micro-pile anchor 122 to the slab-shaped micro-pile anchor 122. The slab-type micro-pile anchor 122 is provided with a rigid supporting force capable of supporting the weight of the concrete E block retaining wall 1 made of pre- However, it is preferable to install a base having an inverted 'L' shape having no backsheing in consideration of the retaining wall of the cut-off portion, in order to minimize the amount of cuts as much as possible.

Since the above-mentioned cut-away portion retaining wall can not have three external stabilization conditions in the retaining wall structure, the inclined micro-pile anchor 122 is fixed to the foundation wall in order to compensate for this, so that the external stability condition is satisfied have. To elaborate on the elements forming such an infrastructure,

It is important that the inclined micro-file anchor 122 is formed so as to be perpendicular to the cut-away surface by inclining the micro-file in an inclined manner. This is to increase the resistance of the foundation wall due to the earth pressure, The intermediate tool 130 is punched in the oblique direction and then an anchor body is formed by inserting the bundle reinforcing bars 132 assembled with the casing 131 into the intermediate tool 130 as shown in FIG. The reinforcing bars are composed of a plurality of reinforcing bars, spacers 133 and PC strands 136. The reinforcing bars are provided with reinforcing bars for each of the spacing grooves 134 arranged at regular intervals along the arc around the spacers 133 And a PC stranded wire 136 is disposed in the gap re-hole 135 at the center of the gap material 133. After the injection and curing of the mortar into the ground steel tool 130, The To secure the fixing slope micropile anchor 122 of the retaining wall to the ever meet the stability condition of the external infrastructure.

For the above-mentioned foundation, a foundation type foundation with an inverted 'L' shape is installed to support the load placed on the upper part with a foundation waveguide perpendicular to the cut- It is preferable to dispose an intermittent bracket 119 having a short length at the top of the back surface of the foundation so that the E block retaining wall 1 to be placed thereon can be installed in a stable manner and the E block retaining wall 1 is placed on the bracket . The bracket 119 is installed at the rear wall of the E block retaining wall 1 so as to achieve overall structural stability.

Precast  Concrete E block  Assembling and installing the retaining wall ( S30 )

In this step, the pre-cast concrete E block retaining wall 1 is assembled and installed, and the E block retaining wall 1 is placed on the cut retaining wall retaining wall 1, as described in detail in the first embodiment.

In the meantime, since the above-mentioned belt-laying method is an important factor for stabilizing the external stability factors such as breakage due to shearing and conduction between the retaining wall blocks, and immersion and sliding, the E block retaining walls (1) By using the stacking method, the reinforcing bars are inserted into the insertion hole 105 previously formed in the E-block retaining wall 1 to integrate the respective E-block retaining walls 1, It is possible to achieve the same effect as the cast retaining wall.

The shapes of the precast concrete E (E1 to E3) block retaining walls (1, 101 to 103) and their joining are described in detail in the first embodiment, and thus are omitted in this section.

Soil nailing  Or incline Micro file anchor and  The E block  The step of binding the retaining wall ( S40 )

The pre-cast concrete E block retaining walls 1 are sequentially stacked and bound to the anchors embedded in the ground. As shown in FIG. 14, there are three The band opening 104 of the fiber reinforcement band 107 is wound around the band opening 104 and the fiber reinforcement band 107 is fixed to the soil nail ring 3 buried in the ground, 16, it is possible to install the inclined microfibre 122 in each of two ways, such as a method in which the inclined microfibers 122 are installed at each of the two ends of the E-block retaining wall 1 and fixed at two locations in the center of the front wall.

Among the two methods of fixing the E-block retaining wall 1, the method of fixing the fiber reinforcement band 107 to the electronic nailing ring 3 is as follows. As shown in FIG. 14, This is because it is easy to fix the fiber reinforcement band 107 to the nail head, while the number of fixing points is small In the method of fixing the E-block retaining wall 1 to the latter inclined micro-file anchor 122, as shown in FIG. 16, the inclined micro-file anchor is fixedly installed at the center of the E-block retaining wall front- As described in the method of constructing the inclined micro-file anchor in the preceding step S10 in such a manner that the E-block retaining wall 1 is resisted by the earth pressure, the construction of the inclined micro- However, there is a disadvantage in that it is necessary to additionally install an inclined micro-file anchor 122. In any of the above-mentioned two methods, safety is given priority, It can be said that it is a preferable construction method as in the retaining wall of the embankment.

With drainage installation Backfilling  A step of backfilling and compaction ( S50 )

If the E-block retaining wall 1 is fixed by the method of binding the soil nailing 3 of the previous stage and the rear wall 2 of the E-block retaining wall 1, The gravel layer 116 and the nonwoven fabric layer 115 are separated from the gravel layer 116 and the nonwoven fabric layer 115 by the ground water so that water pressure does not act on the back surface of the E block retaining wall 1 The drain pipe 118 and the pipe pipe 117 are installed on the bottom surface of the front wall of the E block retaining wall 1 in such a manner that the drain pipe 118 and the pipe pipe 117 are drained as shown in FIG. It is important that the compaction should be made up to 20 cm after being backed up so that the backside settlement does not occur.

On the other hand, when the fiber reinforcing band 107 reaches a position where the fiber reinforcing band 107 can be bundled in the back and compaction process, the fiber bundling band 113 is used to bind the fiber reinforcing band 107, .

remind S10 ~ Up to S50  Repeating the process ( S60 )

This step repeats a series of steps in the previous step, so that the number of retraction is limited according to the height of the retaining wall, but the installation process is the same. .

Third Example

As shown in FIG. 18, the present invention is applied to a sound barrier retaining wall,

(S10) of integrating the concrete block E retaining wall 1 made of pre-cast and the bottom plate of the soundproof wall retaining wall base trowel and fixing the same to the vertical micro-pile anchor 122,

(S20) of fixing the fiber reinforcement band 107 to the rear wall 2 attached to the E block retaining wall 1,

And assembling and installing the sound barrier wall facilities (S30).

Accordingly, the flow of the present invention and the respective constitutions thereof will be described by dividing each of the above steps into processes.

Soundproof wall retaining wall  Foundation tearing and Bottom plate Precast  Concrete E block  Integrating the retaining wall Vertical Micro File on Anchor  Settlement step ( S10 )

In this step, as shown in FIG. 19, the micropile 122 is vertically installed in the ground and the foundation bottom plate 7 is installed. However, a rubble prepared for settlement is installed at a location where the retaining wall is to be installed, The E block retaining wall 1 is inserted into the tightening bolt 120 of the base bottom plate 7 and is fastened with a nut at the fastening hole 124 so as to secure the base bottom plate 7 and the E block retaining wall 7 1) of the E block retaining wall 1 is integrally formed with the base bottom plate 7 by fixing a tension force to the vertical micro pile 122 installed in the ground and restraining the E block retaining wall 1 It is necessary to satisfy the condition that the earth and the soundproof wall retaining wall should be supported with the strong supporting force to support the weight of the soundproof wall retaining wall. However, considering the sound absorbing wall retaining wall facility, Amount-applied according to the infrastructure that is applied it is preferable to configure that because insufficient conditions and equipping the cross product stability is equipped with at least a sufficient condition by installing a micropile vertical anchor 122 as described above.

The reason why the E-block retaining wall 1 constituting the soundproof wall retaining wall is coupled with the bolt 120 and the nut so as to be integrated with the base bottom plate 7 is to provide stability by conduction As shown in FIG. 21, a frame bottom plate 125 is formed at a position where the rear central wall 2 and the front wall meet, And the rear wall 2 integrally formed with the base bottom plate 7 is adapted to prevent the front plate from causing displacement of the conduction when a tensile force due to wind pressure is generated As a result, the overall stability of the soundproof wall retaining wall is maintained.

In the meantime, the vertical stacking method is applied in such a manner that the E block retaining wall 1 is stacked at the soundproof wall retaining wall. In the vertical stacking, the center of gravity is directed toward the front side in such a manner as to stand up without changing the angle, It is preferable to form the fiber reinforcing band 107 which is connected to the rear wall 2 as long as possible. Such a stacking method is advantageous for securing the site, However, it is constructed in such a way that there is a disadvantage that it is not a suitable method because there is a limitation on the back road in the cut part.

Here, the integration of the base bottom plate 7 and the E-block retaining wall 1 and the vertical micro-pile anchor 122 will be described in detail.

The vertical micro-pile anchor 122 fixed to the back bottom bottom plate 7 can calculate the depth and the number considering the wind pressure corresponding to the height of the sound-deadening wall since the sound-absorbing wall retaining wall facility may cause a transition of the conduction and the sliding when the wind pressure is applied to the sound- The vertical micro-pile anchor 122 is the same as that described in the previous section (the second embodiment), and the base bottom plate 7 and the concrete E block retaining wall 1 made of precast are integrated As shown in FIG. 19, an integral structure is formed by fastening the fastening bolt 120 to the cloth tool 126 embedded in the base bottom plate 7 by tightening with a nut at the fastener 124, As described in detail (2) of Fig. 3, the restraint with the other E block retaining wall 1 is performed by using the binding bolts 106 at constant intervals of height, as described in the previous (first and second embodiments) One All.

E block  Attached to the retaining wall On the back wall Fiber reinforcement band  Fixed installation step ( S20 )

This soundproof wall retaining wall usually has mutual correspondence and two-row parallel stacking, and most of the structures are opposite to each other. The stacking is performed by the band binding 113, which is the same method as in the retaining wall of the embankment However,

As a binding method by the band bundle 113, the fiber reinforcement bands 107 laid out in a predetermined length in the mutually facing E block retaining wall 1 are arranged to be in contact with each other. Then, as shown in detail 4 of FIG. 4, The both ends of the iron core 113 are inserted into the arcs of the respective fiber reinforcing bands 107 and rotated so that the fiber reinforcing bands 107 are tightly tangent to contact with the band binding hacks 113 and then fixed in the ground, The reinforcement band 107 is not loosened.

However, since the band bundle 113 is reversely rotated due to the action of the E-block retaining wall 1 on one side and the band bundle 113 thus fixed is taut due to the tension of the band bundle 113, 4, it is preferable to arrange a plurality of band bundles 113 in a bundle so as to prevent the band bundles 113 from being influenced by the reverse rotation.

However, in the case of constructing by one-row overlaying, it is preferable to wind the concrete block 127 by binding as shown in detail 3 of FIG. This is because the reinforcement earth retaining wall, which is a method of buried in a loose state, is often designed to prevent creeping due to soil pressure, which is a pressing phenomenon caused by earth pressure. Therefore, the fiber reinforcement band 107 is tied in a pulled- It can exhibit more stability than the reinforced earth retaining wall.

The E-block retaining wall 1 uses the E1-block 101 retaining wall proposed in the previous embodiment (first embodiment), and each E1-block 101 retaining wall uses another adjacent E1-block 101 ) Retaining wall and the coupling bolts 106. This is to allow the E1-block 101 retaining wall to move integrally due to the wind pressure while being able to withstand the wind pressure acting on the soundproofing plate.

Step of assembling and installing soundproof wall facilities ( S30 )

This step is a step of connecting a frame-shaped steel 123 to an anchor hole 128 embedded in the E block retaining wall 1 completed in the previous section and then installing a sound insulation plate. The frame-shaped steel 123 and the sound- It is one of the important factors that act as an intermediary for transmitting the wind pressure to the E-block retaining wall 1 which is the basic facility to which the present invention is intended to be accomplished.

- reference numerals in the first embodiment
In the indenting manner,
A foundation installation step (SlO) of installing a buried wall retaining wall foundation and a shear key,
(S20) assembling and installing precast concrete E-block retaining walls,
A step (S30) of bundling and binding the band bundle, which is installed at a certain distance from the opening of the back wall of the pre-cast concrete E block retaining wall, by a fiber reinforcement band;
(S40) of installing and backfilling the drain board and compaction,
Repeating the steps S10 to S40 (S50)
- reference numerals in the second embodiment
In the layer stacking method,
(S10) of performing soil nailing with top-down method together with soil cutting work,
(S20) of fixing the foundation of the cut-off retaining wall to the inclined micro-pile anchor,
A step (S30) of assembling and installing a pre-cast concrete E block retaining wall,
Binding the soil nailing and tilting micropile anchors with the E block retaining wall (S40)
A step (S50) of installing drainage facilities and backfilling and compaction,
Repeating the steps S10 to S50 (S60)
- reference numerals in the third embodiment
In the vertical stacking scheme,
A step S10 of integrating the soundproof wall retaining wall foundation trench and the bottom plate with the concrete E block retaining wall made of precast and integrating them into a vertical micro file anchor,
(S20) of fixing a fiber reinforcement band to the rear wall attached to the E block retaining wall,
(S30) assembling and installing the sound barrier wall facilities.
One; Precast concrete 'E' block retaining wall 1a; 1-stage retaining wall
1b; Two-stage retaining wall 2; Back wall
3; Soil Nailing 4; Paperboard
5; Cutting surface 6; Foundation retaining wall
7; Foundation bottom
101; Precast Concrete 'E1' Block Retaining Wall
102; Precast Concrete 'E2' Block Retaining Wall
103; Precast Concrete 'E3' Block Retaining Wall
104; Band opening 105; Insertion port 106; A binding bolt 107; Fiber reinforcement band
108; Abutment walls 109; Coupling
110; Step 111; Guide chin
112; The insertion hole reinforcing bar 113; Band bundle
114; Drain board 115; Non-woven
116; Gravel layer 117; A pipe
118; Drain pipe 119; Brackets
120; Tightening bolt 121; Shear key 122; Microfile anchor 123; Framework steel
124; Fastener 125; Framing plate
126; Cloth tool 127; Concrete block 128; Anchor hole 130; Zhejiang tools 131; Casing 132; Bundle reinforcing bars 133; Spacers 134; Spacers 135; Interval rehole
136; PC Strand

Claims (9)

A method of fixing a fiber reinforcement band (107) to the ground,
In the case of a two-row parallel stacking retaining wall, the band bundle 113 is rotated and bound by tension. The fiber reinforcement bands 107, which are laid out in a certain length in a mutually facing E block retaining wall 1, The both ends of the bundle 113 of the bundle 113 are inserted into the respective arcs of the fiber reinforcement bands 107 and rotated so that the fiber reinforcement bands 107 are taut and taut to come into contact with the band bundle 113, The band bundle 113 is reversed by the action of the E-block retaining wall 1 on one side, and the band bundle 113 is tightly tensed and tied A plurality of band bundles 113 are bundled with reinforcing bars so as not to be released,
In the case of a single row reinforced retaining wall, the concrete block 127 is wound and bound. The concrete block is inserted into the fiber reinforcement band 107, which is bundled at a predetermined length in the E block retaining wall 1, And constructing the concrete block to exhibit resistive force even if the retaining wall (1) attempts to operate in the foreground.
A foundation installation step (SlO) of installing a buried wall retaining wall foundation and a shear key,
(S20) assembling and installing precast concrete E-block retaining walls,
A step (S30) of bundling and binding the band bundle, which is installed at a certain distance from the opening of the back wall of the pre-cast concrete E block retaining wall, by a fiber reinforcement band;
(S40) of installing and backfilling the drain board and compaction,
And repeating the steps S10 to S40 (S50). In the pre-cast concrete E block retaining wall,
A method of fixing a fiber reinforcement band (107) to the ground,
In the case of a two-row parallel stacking retaining wall, the band bundle 113 is rotated and bound by tension. The fiber reinforcement bands 107, which are laid out in a certain length in a mutually facing E block retaining wall 1, The both ends of the bundle 113 of the bundle 113 are inserted into the respective arcs of the fiber reinforcement bands 107 and rotated so that the fiber reinforcement bands 107 are taut and taut to come into contact with the band bundle 113, The band bundle 113 is reversed by the action of the E-block retaining wall 1 on one side, and the band bundle 113 is tightly tensed and tied A plurality of band bundles 113 are bundled with reinforcing bars so as not to be released,
In the case of a single row reinforced retaining wall, the concrete block 127 is wound and bound. The concrete block is inserted into the fiber reinforcement band 107, which is bundled at a predetermined length in the E block retaining wall 1, And constructing the concrete block to exhibit resistive force even if the retaining wall (1) attempts to operate in the foreground.
(S10) of performing soil nailing with top-down method together with soil cutting work,
(S20) of setting the foundation of the cut-off retaining wall and the foundation of the site to the inclined micro-pile anchor (S20)
A step (S30) of assembling and installing a pre-cast concrete E block retaining wall,
(S40) binding the soil nailing or tilting micropile anchor to the E block retaining wall,
A step (S50) of installing drainage facilities and backfilling and compaction,
And repeating the steps S10 to S50 (S60). The pre-cast concrete E block retaining wall has various assembling methods
A method of fixing a fiber reinforcement band (107) to the ground,
In the case of a two-row parallel stacking retaining wall, the band bundle 113 is rotated and bound by tension. The fiber reinforcement bands 107, which are laid out in a certain length in a mutually facing E block retaining wall 1, The both ends of the bundle 113 of the bundle 113 are inserted into the respective arcs of the fiber reinforcement bands 107 and rotated so that the fiber reinforcement bands 107 are taut and taut to come into contact with the band bundle 113, The band bundle 113 is reversed by the action of the E-block retaining wall 1 on one side, and the band bundle 113 is tightly tensed and tied A plurality of band bundles 113 are bundled with reinforcing bars so as not to be released,
In the case of a single row reinforced retaining wall, the concrete block 127 is wound and bound. The concrete block is inserted into the fiber reinforcement band 107, which is bundled at a predetermined length in the E block retaining wall 1, And constructing the concrete block to exhibit resistive force even if the retaining wall (1) attempts to operate in the foreground.
(S10) of integrating the soundproof wall retaining wall foundation trench and the bottom plate with the concrete E block retaining wall made by precast and integrating them into a vertical micro pile anchor (S10)
(S20) of fixing a fiber reinforcement band to the rear wall attached to the E block retaining wall,
And assembling and installing the soundproof wall facilities (S30). The pre-cast concrete E block retaining walls
4. The method according to any one of claims 1 to 3,
Block E-block retaining wall 1 which is divided into zig-zag blocks by sandwiching the reinforcing bars into the insertion opening 105 previously formed in the E-block retaining wall 1, in the stacking method of assembling and installing the precast concrete E- (1), (2), (3), (4), (5), (5) and (6) (2), (3), (4), (4), (4), (4) and (4) and (4) And the pre-cast concrete E is piled up at a certain distance so as to be able to do vegetation. How to assemble a variety of construction of a retaining wall Luck
4. The method according to any one of claims 1 to 3,
Block 101 which is an E-shaped finished product in which a front wall and a rear wall 2 of a retaining wall are integrally formed in a precast concrete E block retaining wall 1 product and a rear wall 2 And a coupling bar 109 installed at a predetermined position with a rear wall 2 separately formed between the guide flanks 111 is inserted between the both guide flanks 111 to form an E- The E2-block 102, the front wall panel and the rear wall 2 separately made of E2-block 102 are constituted by an E3-block 103, which is an E-shaped product assembled like the E2-block 102 In the product,
The upper and lower walls 2 are provided with concave convex portions 108 to prevent lateral displacement and to form a step 110 at any position of the rear wall to prevent slippage due to the earth pressure The fiber reinforcement band 107 is wound around the band opening 104 formed at a predetermined interval of the height of the rear wall 2 to form a structure that can be bound to the band bundle 113 or the concrete block 127 Various assembly methods of cast concrete E block retaining wall
delete 3. The method of claim 2,
In installing a cast-in-place foundation having an inverted L shape without fixing a concrete E block retaining wall 1 made of pre-cast to the inclined micro-pile anchor 122,
Referring to the configuration of the inclined micropile anchor 122,
A plurality of reinforcing bars 132 assembled together with the casing 131 are inserted into the grounding tool 130 by drilling the grounding tool 130 of a predetermined standard in an oblique direction in the ground to form an anchor body, A reinforcing bar is disposed for each of the spacing grooves 134 arranged at regular intervals along the arc around the spacing member 133 and the reinforcing bars are disposed for each of the spacing members 133, And a PC stranded wire 136 is disposed in the center interval hole 135 at the central portion 133 of the slant microfiber 133. After the injection and curing of the mortar into the ground steel tool 130, Various assembling methods of the precast concrete E block retaining wall to fix the anchor 122 to the concrete E block retaining wall in step S40 to satisfy the external stability condition of the foundation
3. The method of claim 2,
E-block retaining wall (1) is fixedly installed, a soilless nail ring (3) is formed by drilling a hole at a depth capable of sustaining sufficient pulling force in the ground and then filling a hook bar formed outside and filling the surrounding cavity with cement mortar ) And the inclined micro-pile anchors 122 are fixedly installed on the E-block retaining wall 1 to fix the E-block retaining wall 1 to the earth pressure by fixing the inclined micro- Various methods of assembling precast concrete E block retaining wall
The method of claim 3,
It is necessary to install the micro pile 122 perpendicularly to the ground and provide a bottom bottom plate 7 having an inverted 'L' shape with a short backsheet. The E block retaining wall 1 is fixed to the bottom plate 7 And the E block retaining wall 1 is restrained to be integrated with the base bottom plate 7 and the tension is applied to the vertical micro pile 122 provided in the ground, (7) Precast concrete to the soundproof wall retaining wall E Various construction methods of retaining wall

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