KR20180129150A - Block type reinforcement retaining wall structure and it's construction method - Google Patents

Abstract

The present invention discloses a block-type reinforced earth retaining wall structure using a strip stiffener and a construction method thereof. The disclosed block-type reinforced earth retaining wall structure using the strip stiffener and the construction method thereof comprise: a retaining wall block having a fitting hole unit, having a rubble fitting hole unit formed vertically, and in which a plurality of blocks are aligned and laminated successively left and right, and backfilled soil is buried in the rear; a block supporting unit coupled to the fitting hole unit and supported on the backfilled soil by the retaining wall block and rotating downward from the retaining wall block according to settlement of the backfilled soil; and a laminated support unit provided on upper and lower surfaces of the retaining wall block to support the retaining wall blocks to be stacked.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a block type reinforced earth retaining wall structure using a strip reinforcement,

The present invention relates to a block type reinforced earth retaining wall structure using a strip reinforcing material and a method of constructing the same. More specifically, the present invention relates to a block reinforcing earth retaining wall structure using a strip reinforcing material, The present invention relates to a block type reinforced earth retaining wall structure using a strip reinforcing material, which is capable of stably supporting a retaining wall block while preventing the block supporting portion from being damaged by rotation of the strip reinforcing material upon settlement of the filled soil.

Generally, a retaining wall refers to a wall that prevents the earth or crushed soil from collapsing or falling due to earth pressure. It is a structure constructed to prevent the collapse of the ground when the steep slope of the ground is set to a steep slope.

Such a conventional retaining wall is formed by weaving reinforcing bars that form a framework of a retaining wall in a horizontal direction and a vertical direction, wrapping them in a form, placing concrete in a form and curing it, Was filled with reinforcing soil including soil, crushed stone, rubble, and the like.

However, such a conventional reinforced concrete retaining wall has a problem that when the backfilled soil subsides, the reinforcing strip is broken. Therefore, there is a need to improve this.

On the other hand, a block-type reinforced earth retaining wall is disclosed in Korean Patent Registration No. 10-1285266 (filed on March 31, 2013).

It is an object of the present invention to provide a block-type reinforced earth retaining wall structure using a strip reinforcement that can easily mount a block support on a retaining wall block, and a method of constructing the same.

Further, since the strip reinforcing member is rotatably connected to the retaining wall block by using the coupling pipe passing through the strip reinforcement, when the back-filling gravel filled in the rear of the retaining wall block sinks, the strip reinforcement is rotated to prevent breakage of the block supporting portion The present invention provides a block type reinforced earth retaining wall structure using a strip reinforcing material capable of stably supporting a retaining wall block and a construction method thereof.

In order to accomplish the above object, a block type reinforced earth retaining wall structure using a strip reinforcement according to an aspect of the present invention includes a coupling hole portion, a plurality of through holes are vertically arranged, A block supporting part connected to the coupling hole part and supported on the backfilled gypsum and rotated downward in the retaining wall block in accordance with the settlement of the backfilled gypsum; And a lamination support portion provided on the upper and lower surfaces of the retaining wall block to support the retaining wall blocks to be stacked.

The fitting hole may include an elongated groove formed in the rear wall of the retaining wall block and a seating groove formed in the retaining wall perpendicular to the elongated groove and having a depth lower than a depth of the elongated groove, .

The block supporting portion may include a strip reinforcement formed with a coupling hole communicating with the seating groove portion and inserted in the long groove portion and embedded in the backfilled soil gravel to be supported, And a coupling pipe.

In addition, the strip reinforcement is rotated in the retaining wall block while the lower surface of the strip reinforcement is spaced apart from the bottom surface of the elongated portion to sink together with the settlement of the backfilled gypsum.

The strip reinforcement is characterized in that the support ribs are formed on both sides so as to increase the pull-out resistance and improve the frictional force with the back-filling gypsum.

In addition, the block type reinforced earth retaining wall structure using the strip reinforcing material may include a decorative panel coupled to the mounting surface of the retaining wall block, a decorative panel mounted on the synthetic resin to be fixed to the retaining wall block by a screw, And a panel fixing member formed by the panel fixing member.

Further, the decorative panel is formed to be longer than the length of the mounting surface so that both side surfaces are exposed on the mounting surface.

In addition, the block type reinforced earth retaining wall structure using the strip reinforcement is formed by forming a trapezoidal shape that is coupled to the upper surface of the retaining wall block stacked on the uppermost of the retaining wall blocks to cover the retaining wall block, And further comprising a block.

According to another aspect of the present invention, there is provided a method of constructing a block-type reinforced earth retaining wall structure using a strip reinforcement according to another aspect of the present invention includes cutting a slope of a road for constructing a retaining wall block to form a cut- A step of placing a concrete base part for stacking the retaining wall block on a bottom surface of the cut soil part; a step of disposing the retaining wall blocks in a row in the concrete base part, and a distance between the retaining wall block and the cut soil part A stiffener mounting step of cutting the strip reinforcement member to fit the strip reinforcement member and forming a coupling hole in the strip reinforcement member and inserting a coupling pipe into the coupling hole to connect the strip reinforcement member to the retaining wall block; And the strip reinforcing material is supported by covering the gravel to adjust the height of the cut- And a retaining wall block laminating step to proceed the re-installation step continuously, depositing a finishing block in the retaining wall blocks are stacked on top, and characterized in that it comprises a finishing step to combine the decorative panel on the front of the retaining wall blocks.

Also, in the step of installing the stiffener, the strip reinforcement is cut, the both ends of the strip reinforcement are folded to reinforce the durability, and then the engaging hole is formed in the folded portion of the strip reinforcement.

As described above, the block type reinforced earth retaining wall structure using the strip reinforcement according to the present invention and the construction method thereof have an effect that the block supporting portion can be easily installed on the retaining wall block unlike the prior art.

In addition, since the strip reinforcement is rotatably connected to the retaining wall block using the coupling pipe passing through the strip reinforcement, the strip reinforcement is rotated in the retaining wall block as the backfilled soil buried in the rear of the retaining wall block sinks It is possible to stably support the retaining wall block while preventing breakage of the block supporting portion.

In addition, the present invention not only improves the feel of the retaining wall block by joining the decorative panel to the front surface of the retaining wall block, but also facilitates assembly and disassembly when the decorative panel is broken, .

1 is a perspective view illustrating a block type reinforced earth retaining wall structure using a strip reinforcement according to an embodiment of the present invention.
2 is an enlarged exploded perspective view showing a block type reinforced earth retaining wall structure using a strip reinforcement according to an embodiment of the present invention.
3 is an enlarged perspective view showing a block type reinforced earth retaining wall structure using a strip reinforcement according to an embodiment of the present invention.
4 is a cross-sectional view illustrating a state in which the strip reinforcement is engaged according to an embodiment of the present invention.
5 is a perspective view illustrating a decorative panel and a panel fixture according to an embodiment of the present invention.
FIG. 6 is a sectional view showing the installation state of a decorative panel and a panel fixture according to an embodiment of the present invention.
Fig. 7 is a plan view of Fig. 3. Fig.
8 is a side view showing a laminated state of a block type reinforced earth retaining wall structure using a strip reinforcement according to an embodiment of the present invention.
9 is an enlarged view of the main part of Fig.
10 is a perspective view showing a closed state of a block type reinforced earth retaining wall structure using a strip reinforcement according to an embodiment of the present invention.
11 is a plan view showing an installed state of a finishing block according to an embodiment of the present invention.
12 is a plan view showing another installed state of a finishing block according to an embodiment of the present invention.
13 is a flowchart illustrating a method of constructing a block type reinforced earth retaining wall structure using a strip reinforcement according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a method of constructing a block type reinforced earth retaining wall structure using a strip reinforcement according to the present invention and a construction method thereof will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a perspective view illustrating a block type reinforced earth retaining wall structure using a strip reinforcement according to an embodiment of the present invention. FIG. 2 is a perspective view illustrating a block type reinforced earth retaining wall structure using a strip reinforcement according to an embodiment of the present invention. And FIG. 3 is an enlarged perspective view of a block type reinforced earth retaining wall structure using a strip reinforcement according to an embodiment of the present invention.

5 is a perspective view illustrating a decorative panel and a panel fixture according to an embodiment of the present invention. FIG. 6 is a cross- 1 is a cross-sectional view illustrating an installation state of a decorative panel and a panel fixture according to an embodiment of the present invention.

FIG. 7 is a plan view of FIG. 3, FIG. 8 is a side view showing a laminated state of a block type reinforced earth retaining wall structure using a strip reinforcement according to an embodiment of the present invention, and FIG. 9 is an enlarged view of the main part of FIG. 8 .

FIG. 10 is a perspective view showing a closed state of a block type reinforced earth retaining wall structure using a strip reinforcement according to an embodiment of the present invention, FIG. 11 is a plan view showing an installed state of a finish block according to an embodiment of the present invention, And FIG. 12 is a plan view showing another installed state of the finishing block according to an embodiment of the present invention.

Referring to FIGS. 1 to 12, a block type reinforced earth retaining wall structure 100 using a strip reinforcement according to an embodiment of the present invention is formed on an inclined surface of a cut soil or fillet to prevent the soil from collapsing or flowing down. To this end, the block-type reinforced earth retaining wall structure 100 includes a retaining wall block 110, a block supporting portion 120, a stack supporting portion 130, a decorative panel 140, a panel fixing hole 150, 160).

The retaining wall block 110 is continuously stacked on the left and right and up and down along the slope of the sloped surface. The decorative panel 140 is attached to the front surface and the block supporting portion 120 is coupled to the rear surface. At this time, the front surface of the retaining wall block 110 is flatly formed with the mounting surface 113 so that the decorative panel 140 can be closely and easily attached.

The retaining wall block 110 is cured by concrete, and can be formed in various shapes according to the terrain or height where the block type reinforcing earth retaining wall structure 100 is installed. In addition, the retaining wall block 110 includes a coupling hole portion 111 for coupling the block supporting portion 120 and a rubble filling hole portion 115 for transmitting rainwater.

The coupling hole portion 111 has an elongated groove portion 111a formed inward from the rear surface of the retaining wall block 110 and a seating groove portion 111b formed to be perpendicular to the elongated groove portion 111a. At this time, the long groove part 111a guides the block supporting part 120, and the seating groove part 111b has a function of fixing the block supporting part 120. [

The depth D1 of the elongated groove portion 111a is formed to be deeper than the depth D2 of the seating groove portion 111b in the coupling hole portion 111. This is because the block supporting portion 120 is depressed In order to secure a movable space in the retaining wall block 110.

The retaining wall blocks 110 are arranged in a row on the left and right sides of the floor of the construction site, and then the block supporting portions 120 are coupled to each other. Further, the retaining wall block 110 is stably supported up and down by the stack supporting portion 130 when stacked in a staggered manner.

The stacked support part 130 includes a support protrusion 131 protruding from the upper surface of the retaining wall block 110 and a support recess 133 formed on the lower surface of the retaining wall block 110. The stacked support portion 130 is inserted into the support groove portion 133 of another retaining wall block 110 where the support protrusions 131 of one of the retaining wall blocks 110 are stacked.

The block supporting portion 120 includes a strip reinforcement 121 inserted into the elongated groove 111a so as to be embedded in the backfilled soil and a stiffener 121 which passes through the strip reinforcement 121 to fix the strip reinforcement 121 to the retaining wall block 110, And a coupling pipe 123 coupled to the groove portion 111b.

Both ends of the strip reinforcement 121 are inserted into the elongated grooves 111a and a coupling hole 121a into which the coupling pipe 123 is inserted is formed. The strip reinforcement 121 is made of synthetic resin and is rotated in the long groove 111a with reference to the coupling pipe 123. The strip reinforcement 121 is formed so that the width W1 thereof is smaller than the depth D1 of the long groove portion 111a and the bottom surface of the strip reinforcement 121 is spaced apart from the bottom surface of the long groove portion 111a.

In other words, the strip reinforcing material 121 can be used as a reinforcement material in the case where the backfilled soil material is settled in the state where the block type reinforced earth wall structure 100 is installed or in order to stack the backfill block 110, And is rotated in the retaining wall block 110 while sinking together. It is possible to prevent breakage due to subsidence of the backfilled soil.

The strip reinforcement 121 is cut and used at the construction site of the retaining wall block 110 according to the topography of the retaining wall block 110 or the coverage of the backfilled soil. In the field.

In addition, the strip reinforcement 121 is provided such that the support ribs 121b are spaced apart from each other so that the frictional force with the backfilled soil is increased and the pull resistance is improved. The support ribs 121b protrude from both sides of the strip reinforcement 121.

The fitting hole 121a of the strip reinforcing member 121 is perforated in a folded state so that the end of the strip reinforcing member 121 overlaps. As described above, the strip reinforcement 121 is folded to form the engaging hole 121a in order to ensure the durability of the strip reinforcement 121 in which the engaging hole 121a is formed. A coupling pipe 123 is inserted into the coupling hole 121a.

The coupling pipe 123 is inserted into the fitting hole 121a of the strip reinforcement 121 and inserted into the seating groove portion 111b. The strip reinforcement 121 can be easily coupled to the retaining wall block 110 through the coupling pipe 123. [ Therefore, the workability of the block supporting portion 120 can be improved.

Although the coupling pipe 123 is shown as being hollow in the present embodiment, the coupling pipe 123 may be formed in the form of a round bar.

In addition, the block support 120 according to the present embodiment further includes a strip fixing member 125 to stably and stably support the strip reinforcement 121 to the backfilled soil.

The strip fixing member 125 is formed in the shape of "?" So as to have the fixing groove 125a to which the strip reinforcement 121 is inserted and supported, and is stuck to the backfill by the impact of the impact rod or hammer. The wedge portion 125b is formed so that the strip fixing member 125 can be easily embedded in the gravel and the support plate 125c is protruded from the side surface. The support plate 125c prevents the strip fastening member 125 from sinking and moving in the backfilled soil.

The strip fixing member 125 according to this embodiment prevents the strip reinforcement 121, which is erected to be supported by the backfilled soil, from collapsing during the backfilling of the backfilled soil.

The decorative panel 140 is coupled to the front surface of the retaining wall block 110 according to the present embodiment. The decorative panel 140 is coupled to the mounting surface 113 of the retaining wall block 110 by a panel fastener 150 so as to decorate the front surface of the retaining wall block 110.

The decorative panel 140 may be made of at least one of plasterboard, wood panel, and synthetic resin panel, and is coupled to the panel fixture 150 through a screw or bolt. In particular, the decorative panel 140 is formed so that its width is wider than the width of the mounting surface 113, so that both ends thereof protrude from the mounting surface 113.

The panel fastener 150 is provided on both sides of the mounting surface 113 of the retaining wall block 110 and is made of synthetic resin so that screws or bolts can be easily engaged. In particular, the panel fixture 150 is inserted into the retaining wall block 110 so as to be more firmly coupled to the retaining wall block 110. For example, the retaining wall block 110 is cured with the panel fixture 150 embedded when it is cured by concrete. It is possible to prevent the panel fixing tool 150 from being led to the outer surface of the retaining wall block 110 and to prevent the panel fixing tool 150 from being damaged when the retaining wall block 110 is carried or stacked.

The panel fixture 150 according to the present embodiment is formed in the shape of "? &Quot;, and one side thereof is exposed to the front surface of the retaining wall block 110.

On the other hand, the block type reinforced earth retaining wall structure 100 using the strip reinforcing material may further construct the geogrid between the retaining wall blocks 110 stacked up and down.

Hereinafter, the operation of the block type reinforced earth retaining wall structure according to one embodiment of the present invention will be described.

First, the retaining wall block 110 is arranged in a row on the construction site such as the excavation site of the cave site or the slope, the block supporting portion 120 is coupled to the retaining wall block 110, And the strip reinforcement 121 of the block supporting portion 120 is buried.

Particularly, the length of the strip reinforcing member 121 is adjusted according to the condition of the site to be cut, and the fitting hole 121a for insertion of the coupling pipe 123 is drilled at both end portions. The engaging pipe 123 is inserted into the engaging hole 121a and the engaging pipe 123 is engaged with the seating groove portion 111b so that the strip reinforcement 121 is inserted into the long groove portion 111a.

At this time, since the depth D1 of the long groove portion 111a is formed to be smaller than the width W1 of the strip reinforcement 121, the strip reinforcement 121 can be rotated by the retaining wall block 110, The strip reinforcement 121 is prevented from contacting the retaining wall block 110 to be deformed or broken.

Then, another retaining wall block 110 is stacked on the upper surface of the first retaining wall block 110 in a staggered manner to locate the second retaining wall block 110, and then the strip reinforcing material 121 is engaged. At this time, the support protrusion 131 is inserted into the support recess 133 to support the retaining wall block 110, which is vertically stacked.

When the lining of the retaining wall block 110 is completed, the decorative panel 140 is coupled to the front surface of the retaining wall block 110 to decorate the retaining wall block 110 in various shapes. Since the panel fastener 150 is integrally inserted into the retaining wall block 110 while being prevented from protruding from the outside of the retaining wall block 110, And the decorative panel 140 can be easily combined. In addition, since the decorative panel 140 can be easily replaced, the design can be changed and the maintenance can be easily performed.

A method of constructing a block type reinforced earth retaining wall structure using the strip reinforcement according to the present invention will now be described.

1 to 13, a method of constructing a block type reinforced earth retaining wall structure using a strip reinforcement according to the present invention includes a cutting step S10, a base forming step S20, a stiffener mounting step S30, A block stacking step S40, and a finishing step S50.

The cutting step S10 cuts the slope of the road or cutout for constructing the retaining wall block 110 to form a cut-out portion. At this time, the bottom surface of the cut-out portion excavates the road or cut-out paper to a specific depth so as to proceed to the base forming step (S20).

In the base forming step S20, a concrete foundation for laying the retaining wall block 110 is laid on the bottom culvert of the cut soil. In this base forming step S20, the retaining wall block 110, which is stacked through the curing of the concrete foundation, is prevented from sinking.

When curing of the concrete base is completed, the reinforcing material installation step S30 is performed in which the retaining wall blocks 110 are arranged in one row in the concrete foundation and the strip reinforcement material 121 is installed to support the retaining wall block 110.

In the stiffener installation step S30, the strip reinforcement 121 is cut in accordance with the distance between the retaining wall block 110 and the cut-off portion arranged in one line in the base portion of the concrete, the coupling hole 121a is formed in the strip reinforcement 121, A coupling pipe 123 is inserted into the coupling hole 121a and is engaged with the coupling hole 111 of the retaining wall block 110. [ The stiffener mounting step S30 proceeds so that the strip reinforcement 121 can be installed on all the retaining wall blocks 110 arranged and stacked in order.

Particularly, the stiffener mounting step S30 is performed such that the end portions of the strip reinforcement 121 are folded so that the durability of both ends of the strip reinforcement 121 forming the engaging hole 121a can be reinforced. (121a). Thus, even if the coupling hole 121a is formed in the strip reinforcement 121, the tensile strength at that portion is prevented from being lowered.

When the engaging hole 121a is formed in the strip reinforcing member 121, heat is applied to the strip reinforcing member 121 by using a heating rod or the like. As a result, it is possible to facilitate the piercing of the coupling hole 121a and smoothly finish the inner surface of the coupling hole 121a.

In the step of stacking the retaining wall blocks S40, after the strip reinforcing material 121 is installed, the back reinforcing material 121 is supported on the back of the retaining wall block 110 to cover the strip reinforcing material 121, Fill it. In addition, in the step of stacking the retaining wall blocks S40, the retaining wall blocks 110 are stacked in accordance with the height of the cut-away portions while the reinforcing material installing step S30 is continuously performed each time the retaining wall blocks 110 are stacked.

In the finishing step S50, the finishing block 160 is stacked on the retaining wall block 110 stacked on the top and the decorative panel 140 is coupled to the mounting surface 113 of the retaining wall block 110. [

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.

Accordingly, the true scope of protection of the present invention should be defined by the claims.

100: Block type reinforced earth retaining wall 110: Retaining wall block
111: engaging hole portion 111a: long groove portion
111b: seating groove portion 113: pin engagement hole
120: block support 121: strip reinforcement
121a: engaging hole 121b:
123: coupling pipe 125: strip fixing member
125a: Fixing groove part 130: Lamination support part
140: decorative panel 150: panel fixture
160: Finishing block

Claims (7)

A retaining wall block having a joint hole portion, a plurality of luffing holes formed in the upper and lower portions, and a plurality of lining blocks stacked successively on the left and right sides,
A block supporting part coupled to the coupling hole part and supported on the backfill so as to rotate downward from the retaining wall block according to the settlement of the backfilled soil; And
A laminated support provided on upper and lower surfaces of the retaining wall block to support the retaining wall blocks stacked;
The block type reinforced concrete retaining wall structure using the strip reinforcement.
The method according to claim 1,
Wherein the engaging hole portion includes: an elongate groove portion formed inward from a rear surface of the retaining wall block; And
And a seating groove portion formed on the retaining wall block so as to be perpendicular to the long groove portion and having a depth lower than a depth of the elongated groove portion,
The block supporting portion includes a strip reinforcement formed with a coupling hole communicating with the seating groove portion and inserted in the long groove portion and embedded in the backfilled soil gravel to be supported therein; And
And a coupling pipe inserted in the coupling hole and seated in the seating groove,
Wherein the strip reinforcement is rotated in the retaining wall block while the lower surface of the strip reinforcement is spaced apart from the bottom surface of the elongated portion and is submerged together with the settlement of the backfilled gypsum.
3. The method of claim 2,
Wherein the strip reinforcement is formed such that the support ribs are spaced apart from each other in order to increase the pullout resistance and improve the frictional force with the backfilled soil.
The method according to claim 1,
A decorative panel coupled to a mounting surface of the retaining wall block; And
And a panel fixture inserted into the retaining wall block to be exposed to the mounting surface and formed of synthetic resin so that the decorative panel is fixed by a screw,
Wherein the decorative panel is formed to be longer than the length of the mounting surface so that both side surfaces are exposed on the mounting surface.
5. The method according to any one of claims 1 to 4,
Further comprising a finishing block joined to an upper surface of the retaining wall block stacked on the uppermost one of the retaining wall blocks to cover the retaining wall block and formed in a trapezoidal shape so as to be arranged in a curved shape. Block type reinforced earth retaining wall structure.
A cutting step for partially cutting the inclined surface for constructing the retaining wall block to form a cutout portion in which the retaining wall block is installed;
A base forming step of placing a concrete base portion for stacking the retaining wall block on a bottom surface of the cut soil portion;
A step of disposing the retaining wall block in one row in the concrete base portion, cutting the strip reinforcement material in accordance with the distance between the retaining wall block and the cut soil portion, forming a coupling hole in the strip reinforcement material, inserting the coupling pipe into the coupling hole, A stiffener mounting step of connecting the strip reinforcement to the retaining wall block;
A retaining wall block stacking step of covering the backfilled soil on the rear side of the retaining wall block to support the strip reinforcement and continuing the step of installing the reinforcing material in conformity with the height of the cut-off portion; And
A finishing step of laminating a finishing block on the retaining wall block stacked on the uppermost portion and joining a decorative panel to the front face of the retaining wall block;
Wherein the reinforcing layer is made of a metal.
The method according to claim 6,
Wherein the stiffener mounting step comprises cutting the strip reinforcement member and folding both end portions of the strip reinforcement member to reinforce durability and then forming the engaging hole in the folded portion of the strip reinforcement member. Construction method of reinforced earth retaining wall structure.

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