KR101544756B1 - Retaining wall block construction method using stone - Google Patents

Abstract

The present invention relates to a method for constructing a retaining wall block having stone attached thereto. The purpose of the present invention is to improve construction stability and work efficiency by preventing damage to artificial stone or the separation of the artificial stone in the process of constructing a retaining wall block having artificial stone attached to a front surface. To realize the purpose, the present invention comprises: a hole forming step (ST1) of forming a hole (11) at a constant angle with respect to the surface of a dissected area (10); a reinforcing material installing step (ST2) of inserting a reinforcing material (20) with a certain length into the hole (11) so that the upper part of the reinforcing material (20) can be exposed to the outside; a grouting material inserting step (ST3) of inserting a grouting material (12) into the hole (11) having the reinforcing material (20) inserted therein; a retaining wall block stacking step (ST4) of installing a base part (30) on the ground at the lower end of the surface of the dissected area (10), stacking the retaining wall block (40) in a multilayer shape above the base part (30), combining artificial stone (41) with the front surface of the retaining wall block (40) using adhesive and forming a concave groove part (42) and a protrusion part (43) at the upper part and the lower part of the retaining wall block (40) respectively so that the retaining wall blocks (40) can be supported by an insertion-fitting method; a backfilling step (ST5) of a filling a filling material (50) of ready-mixed concrete or earth and sand into a space between the retaining wall block (40) and the surface of the dissected area; and a grid installing step (ST6) of horizontally connecting and installing a grid (60) between the retaining wall block (40) and the surface of the dissected area (10) in the backfilling step.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a retaining wall block having a stone attached thereto,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of constructing a retaining wall block, and more particularly, to a method of constructing a retaining wall block in which a retaining wall structure is installed in a block manner in order to secure stability of a building.

Generally, the retaining wall is the most common structure to resist earth pressure. It is used for the purpose of optimizing the land according to the restriction of the paper such as road, railway, harbor, seawall, alternation, redevelopment apartment, Are installed on slopes of a residential site, a foothill, etc. which form a boundary with a road, and are responsible for preventing collapse thereof by natural conditions such as earth pressure and storm.

In the past, in the case of retaining wall structures, there was a construction method in which a formwork was installed as much as the installation height, a reinforcing bar was laid, and concrete was laid. Recently, however, a variety of prefabricated retaining wall methods using a retaining wall block .

As an example of construction using a retaining wall block, Korean Patent Registration No. 0648110 discloses a structure and a method of installing a reinforcing soil block that is anchored by an anchor bar using a reinforcing soil block and geogrid, and a method of installing a reinforcing soil block using the same And Korean Patent No. 0386406 disclose a block structure for building a retaining wall using a retaining wall for building a retaining wall, a geogrid and a hinge, and a method for constructing a retaining wall using the same.

However, since the retaining wall block is made of concrete in the above-mentioned conventional technique, the edges and the edges are broken due to the aging phenomenon as a result of appearance of roughness and roughness, and it is completely different from the flat shape at the time of construction For example, it has been pointed out that the fogging and turning into a broken and broken shape, especially the concrete whitening phenomenon, will cause the surrounding environment of reinforced earth retaining wall to be damaged.

The present invention has been proposed in order to solve the problems of the prior art described above, and it is an object of the present invention to provide a method for constructing a stable retaining wall block in a state where artificial stone is bonded to a front surface of a retaining wall block, To be maintained.

According to an aspect of the present invention, there is provided a method of forming a perforation hole, the method comprising: forming a perforation hole at a predetermined angle on a cut surface; A stiffener mounting step of inserting a predetermined length of stiffener into the perforation hole so that an upper portion of the stiffener protrudes to the outside; A grouting material injection step of injecting a grouting material into the perforation hole into which the reinforcing material is inserted; The base block is provided on the lower ground of the incision surface, and a multi-layered retaining wall block is laminated on the base portion, wherein an artificial stone material is bonded to the whole of the retaining wall block by an adhesive, A retaining wall block stacking step in which the retaining wall blocks are fitted to each other; A backfill step of filling a space between the retaining wall block and the storage floor with a soil or a remocon; And a grid mounting step of horizontally connecting the grid between the retaining wall block and the incision surface in the back-filling process.

The method of constructing the retaining wall block according to the present invention prevents the artificial stone from being damaged or dislodged during the construction of the retaining wall block having the artificial stone material on the front thereof, thereby improving the stability and efficiency of the construction.

In addition, since the retaining wall block is supported by the grid together with the reinforcing material, the retaining wall structure can be maintained in a stable construction state.

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIG. 2 is a view showing a state in which a reinforcing member is installed in a perforation hole in the present invention. FIG.
Fig. 3 is a state in which the grouting agent is injected into the perforation hole in the present invention. Fig.
Fig. 4 is a view showing the state of construction of the single-wall construction of the retaining wall in the present invention. Fig.
5 is an enlarged view of part A in Fig.
6 is an enlarged view of a portion B in Fig.
FIG. 7 is a graph showing the state of the soil fill in the rear surface of the retaining wall in the present invention. FIG.
8 is a view illustrating a state in which a grid is connected to a retaining wall block in the present invention.
Fig. 9 is a state in which the retaining wall block of the present invention is completed. Fig.
10 is an enlarged view of a portion C in Fig.
Fig. 11 is a sectional view of the installation of a stone support in the present invention. Fig.
FIG. 12 is a perspective view of a part of a stone support member in the present invention. FIG.
FIG. 13 is a sectional view of a stone foundation according to another embodiment of the present invention. FIG.
Figure 14 is a sectional view of a stone support according to another embodiment of the present invention.
FIG. 15 is a sectional view of a stone support according to another embodiment of the present invention. FIG.
16 is a cross-sectional view of a stone support according to another embodiment of the present invention.

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

First, the construction of a retaining wall block according to an embodiment of the present invention will be described.

<Step 1: Perforation hole formation>

First, a perforation hole 11 is formed at an incision surface 10 formed by cutting a slope of a construction site at an angle as shown in FIG.

<Step 2: Installing the stiffener>

A reinforcing member 20 having a predetermined length is inserted into the formed hole 11. At this time, a portion of the upper end of the reinforcing member 20 protrudes to the outside as shown in FIG.

It is preferable that the reinforcing member 20 provided at this time is welded and fixed with the wire wire 21 wrapped around the outer surface thereof to increase the contact area with the grouting material 12 and to strengthen the adhesive force.

At this time, the reinforcing material 20 to be used may be an anchor or a steel pipe depending on the field conditions as well as the nail.

<Step 3: Grouting Injection>

When the insertion of the reinforcing material 20 is completed, the grouting material 12 mixed with water, cement, fluidizing agent and water reducing agent is poured into the perforation hole 11 as shown in FIG. 3 and then cured to fill the perforation hole 11 It is possible to fix the reinforcing member 20 together with the zoom.

<Step 4: Stacking the retaining wall block>

When the grouting material injection is completed, the foundation 30 is installed on the lower ground of the incision surface 10 as shown in FIG. 4, and a multi-layered retaining wall block 40 is stacked on the foundation 30 And work is performed.

The artificial stone 41 is adhered to the front surface of the wall block 40 installed at this time by an adhesive agent. In the upper and lower portions of the retaining wall block 40, the recessed portion 42 and the projection 43 are So that the retaining wall blocks 40 can be fitted to each other.

Particularly, in the present invention, in order to prevent the artificial stone 41 from being separated in the construction process, a stone support 70 having a sectional structure of a "T" shape is inserted into a gap between the retaining wall blocks 40 11 and 12, the stone support 70 includes an insertion portion 71 inserted between the retaining wall blocks 40, and an upper portion 70 extending perpendicularly from the front end of the insertion portion 71. [ And a stone support part 72 extending symmetrically to the lower part and supporting the artificial stone 41. It is preferable that a urethane coating layer 73 for reducing the impact with the artificial stone 41 is formed on the upper and lower surfaces of the stone support 70.

Therefore, the stone receiving portion 72 supports the artificial stone 41 while the insertion portion 71 is pressed and fixed by the load of the retaining wall block 40, so that the artificial stone 41 is removed Can be prevented.

6, the artificial stone 41 is adhered to the retaining wall block 40 by means of an adhesive agent, In the process of adhesion.

In addition, in the laminating process of the retaining wall block 40, the front end of the reinforcing material 20 is fastened to the retaining wall block 40 by using the fastening nut 24 as shown in Fig.

<Step 5: Backfilling>

In the process of installing the retaining wall block 40, as shown in FIG. 7, the filler 50 of the soil or the remotecon is filled in the space between the retaining wall block 40 and the cut floor 10, 40, it is preferable that a sufficient compaction operation is performed after the embankment so that the gravel can be brought into close contact with the retaining wall block 40. [

In addition, a nonwoven fabric 51 is installed on the back surface of the retaining wall block 40 to prevent drainage and soil erosion during the backfilling operation.

<Step 6: Installing the grid>

When the backfilling operation is completed, a grid installation work is performed in which the grid 60 is connected horizontally as shown in FIG. 8 between the retaining wall block 40 and the incision surface 10.

At this time, the tip of the grid 60 is pressed and fixed between the protrusion 43 and the fitting groove 44 at the laminated portion of the retaining wall block 40, and the fixing pin 61 is fixed to the rear end of the grid 60 The fixation pin 61 is inserted into the pin engagement groove 13 formed in the cut surface 10 and then the grout material is injected so that the fixation pin 61 is fixed to the cut surface 10.

Then, by repeating the above steps 4, 5 and 6, the construction of the retaining wall block as shown in FIG. 9 is completed.

Accordingly, the retaining wall block constructed by the construction method of the present invention has the artificial stone 41 adhered to the entire block, thereby improving the appearance of the retaining wall and allowing only the artificial stone 41 of the damaged portion to be replaced And it is easy to maintain the facilities.

Further, the retaining wall block can be stably supported by the reinforcing member 20 and the grid 60, which shows an advantage that the structural safety is improved.

13 and 14 illustrate an installation structure of the stone support 70 according to another embodiment of the present invention. The stone support part 72 can be inserted into the bottom and top surfaces of the artificial stone 41 It can be confirmed that the fastening groove 41a is formed.

With such a structure, it is possible to more stably support the artificial stone 41 located at the upper part and the lower part by inserting the stone supporting part 72 into the engaging groove 41a, so that the artificial stone 41 is supported by the retaining wall block 40 can be prevented more effectively.

15 and 16 illustrate an installation structure of the stone support 70 according to another embodiment of the present invention. In the projection 43 formed in the retaining wall block 40, A retaining groove 44 is formed on an upper surface of the retaining wall block 40 and an insertion portion 71 corresponding to the retaining groove 44 is formed. A variable adjuster 75 is provided at the lower end of the fitting protrusion 74 so as to be able to adjust the length of the fitting groove 44 in accordance with the depth of the fitting groove 44, As shown in FIG.

With such a structure, since the front end of the insertion portion 71 is inserted into the insertion groove 43a, the upper and lower artificial stone 41 and the retaining wall block 40 are supported by the stone support 70 Can be more effectively achieved.

Particularly, since the variable adjuster 75 is resiliently supported by the elastic spring 76, the stable state of the stone support 70 can be maintained at all times regardless of the depth of the fitting groove 44.

10: incision surface 11: perforation hole
12: grouting material 13: pin fastening groove
20: Stiffener 21: Steel wire
22: Packer 23: Spacer
30: base part 40: retaining wall block
41: artificial stone 41a: fastening groove
42: recessed portion 43: protruding portion
43a: Support insertion groove 44: Fitting groove
50: Filler (soil, remicon) 51: Nonwoven fabric
60: Grid 61: Retaining pin
70: stonewall 71: insertion part
72: Stone bearing portion 73: Urethane coating layer
74: fitting projection 75: variable adjustable fitting
76: Elastic spring 80: Support pin

Claims (8)

A perforation hole forming step of forming a perforation hole (11) at an incline plane at an incision surface (10); (ST 1)
A stiffener mounting step of inserting a stiffener 20 of a predetermined length into the perforation hole 11 so that the upper portion of the stiffener 20 protrudes to the outside;
A grouting material injection step of injecting the grouting material 12 into the perforation hole 11 into which the reinforcing material 20 is inserted;
A foundation block 30 is installed on the lower ground of the incision surface 10 and a multi-layered retaining wall block 40 is stacked on the foundation block 30. The artificial stone 40 41 are joined by an adhesive and recessed portions 42 and protruding portions 43 are formed on the upper and lower portions of the retaining wall block 40 so that the retaining wall blocks 40 are fittable to each other, A stone support 70 having a sectional structure of a "T" shape is inserted and installed in a gap between the retaining wall blocks 40 in order to prevent the separation of the retaining wall 41, And a stone support part 72 extending symmetrically at the top and bottom in a direction perpendicular to the front end of the insertion part 71 to support the artificial stone 41 And an insertion groove 44 is formed on the upper surface of the retaining wall block 40. On the bottom surface of the insertion portion 71 corresponding to the fitting groove 44, And a variable adjuster 75 is provided at the lower end of the fitting protrusion 74 by a resilient spring 76 so that the length of the fitting protrusion 74 can be varied according to the depth of the fitting groove 44 (ST 4)
A backfill step of filling a filler material 50 of a soil or a concrete with a space between the retaining wall block 40 and the cut floor 10;
A grid installation step of connecting the grid 60 horizontally between the retaining wall block 40 and the incision surface 10 after the back-filling step ST 5;
Wherein the method comprises the steps of: The method according to claim 1,
Wherein the steel wire (21) is welded and fixed along the outer surface of the reinforcing member (20) in the stiffener mounting step (ST 2). delete The method according to claim 1,
And a locking groove 41a is formed on a bottom surface and an upper surface of the artificial stone 41 in the step of stacking the retaining wall blocks ST 4, Construction method. delete The method according to claim 1,
In the protruding portion 43 formed in the retaining wall block 40 in the retaining wall block laminating step ST4, a retaining groove 43a into which the leading end of the inserting portion 71 of the stone retainer 70 can be inserted is formed A method of constructing a retaining wall block having a stone attached thereto. delete The method according to claim 1,
In the grid installation step ST6, the leading end of the grid 60 is press-fitted between the protruding portion 43 and the fitting groove 44 at the laminated portion of the retaining wall block 40 and fixed to the rear end of the grid 60 The fixing pin 61 is fixed by inserting the fixing pin 61 into the pin locking groove 13 formed in the cut surface 10 in a state where the pin 61 is integrally formed and then injecting grout material. A method of constructing a retaining wall block having a stone attached thereto.

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