KR20110038886A - Retaining wall connection structure - Google Patents

Abstract

PURPOSE: A connecting structure for a retaining wall is provided to enhance the reinforcing efficiency of entire ground bearing a landscape stone since a nail construction method, in which a PC strand is used, is applied, the tensile force of the PC strand enhances the reinforcing efficiency of the ground and the landscape stone is directly connected to the PC strand. CONSTITUTION: A connecting structure for a retaining wall comprises a first connecting/fixing body, a second connecting/fixing body, a PC strand nail and a connecting member. The first connecting/fixing unit forms a first hole on a landscape stone. The PC strand nail is installed on a second hole on a low soil stack or a high soil stack and comprises an anchoring unit. The PC strand nail fixes the PC strand and an acupressure plate using a fist fastening unit. The PC strand nail connects the second connecting/fixing body through the hole of the acupressure plate. The connecting member connects the first connecting/fixing body to the second connecting/fixing body of the PC strand nail.

Description

Retaining Wall Connection Structure {RETAINING WALL CONNECTION STRUCTURE}

The present invention relates to a retaining wall connection structure, and more particularly, a retaining wall for connecting a landscaping stone to a ground reinforcing member in a process of forming a retaining wall using landscaping stones in order to prevent collapse of a fill section and a cut section generated in a civil engineering and building construction process. It relates to a connecting structure.

In general, in the process of civil engineering and building construction, the cut portion formed by the arbitrary cutting and the fill portion formed by the height difference in the process of filling is inevitably generated.

Since such cuts and fills are made with a steeper slope than a stable slope of the ground, a retaining wall structure is required to prevent soil from collapsing due to soil pressure.

In order to form such a retaining wall structure, a retaining wall structure using a concrete pour or a retaining wall structure using a ridge is conventionally used.

However, the retaining wall structure using concrete pouring lacks flexibility and variability corresponding to the type of slope and rock to be installed. And a support base is needed to solve the flexibility and variability, but a considerable space is required to secure the support base. In addition, securing such spaces required a lot of backfilling work, which extended the construction period and cost a lot of construction costs. In addition, when partial breakage occurs, the repair thereof is difficult and there is a problem that does not meet the landscape aspect considering the aesthetics.

Therefore, in recent years, retaining wall structures using natural stone, which can solve the problems of concrete pouring and, as a result, have sufficient improvement, are widely used.

However, in the case of the retaining wall structure using the conventional natural stone as shown in A and B of Figure 1 by providing a separate front support for supporting the front landscape stone and the front landscape stone is difficult to connect the structure as well as a separate time to form a separate rear support There was a problem with the cost.

In order to solve the above problems, to provide a retaining wall connecting structure to connect the landscape stone directly to the PC strand while at the same time applying the nail method using a PC strand for ground reinforcement of the cut and fill section for the first object of the present invention. It is.

The second object of the present invention is to directly connect with the landscape stone by using the structure of the PC strand used for the ground reinforcement of the cut section and the fill section, not only does not need a separate structure for fixing the landscape stone, but also makes the landscape stone more firmly To provide retaining wall connections that can support and significantly reduce time and cost.

In order to achieve the above object, the retaining wall connecting structure according to the first embodiment of the present invention comprises a first connecting fixing body fixed to the first perforation formed in the landscape stone; Inserting and grouting the PC strand including the fixing unit at one end into the second perforation formed in the cut or fill section, the PC strand and the pressure plate is fixed using a first fastening device, and a bulb is formed at the other end of the PC strand PC strand wire nail to secure with a second fastening device by; And a connecting member connecting the first connecting fixture and the bulb of the PC strand nail.

In this case, the first connection fixing body includes an expansion fixing tube for expanding while sliding the head of one end of the guide rod and a connection ring connected to the other end of the guide rod.

On the other hand, the first fastening device and the second fastening device of the PC strand wire nail may include a wedge nut and a wedge, the bulb of the plurality of strands constituting the PC strand between the pressure plate and the second fastening device The twist can be loosened and formed.

In addition, one end of the connection member is provided with a turnbuckle, the tensile force may act on the connection member according to the operation of the turnbuckle.

In order to achieve the above object, the retaining wall connecting structure according to the second embodiment of the present invention includes a first connecting fixture fixed to the first perforation formed in the landscape stone; Inserting and grouting a PC strand including a fixture at one end into a second perforation formed in the cut or fill section, the PC strand and the pressure plate is fixed using a first fastening device, through at least one hole formed in the pressure plate PC strand wire nail is fastened to the second connection fixture; And a connecting member connecting the first connecting fixture and the second connecting fixture of the PC strand nail.

At this time, the second connecting fixture is formed in plural, each second connecting fixture is characterized in that it is connected using a first connecting fixture and a connecting member formed in a separate landscape stone.

In addition, one end of the connecting member is provided with a turnbuckle, characterized in that the tensile force acts on the connecting member according to the operation of the turnbuckle.

On the other hand, the first connection fixing body may include an expansion ring for dilating while sliding the head of one end of the guide rod and a connecting ring connected to the other end of the guide rod.

As described above, the retaining wall connection structure according to the present invention improves the ground reinforcement efficiency by using the tensile force which is a material characteristic of the PC strand, and connects the landscape stone directly to the PC strand to connect the ground stone with the ground reinforced by the PC strand. It is formed to have the effect of improving the reinforcement efficiency of the entire ground including the landscape stone.

In addition, the retaining wall connection structure according to the present invention has an effect that can be easily connected as well as cost saving by using the structure of the PC strand directly to connect the landscape stone and the PC strand.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, if it is determined that detailed descriptions of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

2 is a view showing a first embodiment of the retaining wall connecting structure according to the present invention.

As shown, the retaining wall connecting structure according to the present invention is a first connection fixing body 200 fixed to the first perforation 101 formed at a predetermined position of the landscape stone 100, 110, 120 formed in a multi-layer, Connect the end of the PC strand wire nail 300, PC strand wire nail 300 and the first connection fixing body 200 which is installed to reinforce the ground in the second perforation 11 formed in the cut portion or the fill portion, and the ground stone is It includes a connecting member 400 for supporting.

Among the landscape stone (100, 110, 120) formed in a multi-layer, the lowest landscape stone (100) is dug the ground to a predetermined depth, and is built on the basis of the support layer 20 for supporting the landscape stone (100) to the ground.

Here, the support layer 20 may be based on concrete. Concrete foundation work is performed at a predetermined depth so that the landscape stone 100 can be set at a predetermined position of the ground 20.

Here, the concrete foundation work may be carried out in various ways.

As an example, digging the ground to a certain depth so that the landscaping stone 100 can be set at a predetermined position of the ground 20, and the concrete foundation construction to a certain height to form a first concrete layer.

After the first concrete layer is firmly cured, a second concrete layer serving as a support of the landscape stone 100 is formed and cured. However, the first concrete layer and the second concrete layer may be separately performed and may be formed of one layer.

When the second concrete layer is formed, the landscaping stone 100 is erected and the concrete is filled in the empty space again. Through this, a third concrete layer is formed, and the third concrete layer performs a function of firmly fixing the landscape stone 100.

Here, the landscape stone (100, 110, 120) may be used in various kinds of stones. For example, there are natural, blasted and processed stones.

The size of the landscape stone 100, 110, 120 may be formed in various forms according to the conditions of the working space.

At a predetermined position of the landscaping stone 100, a first perforation 101 through which the first connection fixing body 200 is inserted and fixed is formed.

The first connection fixing body 200 connected to the first perforation 101 of the landscape stone 100 may be provided with a ring to be connected to the PC strand wire nail 300 using the connection member 400. A detailed configuration of the first connection fixture 200 will be described with reference to FIGS. 3 and 4.

PC strand wire nail 300 installed to reinforce the ground in the second perforation 11 formed in the cut portion or fill portion is fixed to the PC strand wire 310, PC strand wire 310 formed at a predetermined length A sieve 370, a pressure plate 330 fastened to the other end of the PC strand 310, and a first fastening device 340 for fastening and fastening the pressure plate 330 to the PC strand 310; The connecting bulb 350 is formed on the PC strand 310 extending through the fastening device 340, and includes a second fastening device 360 to prevent loosening at the end of the connecting bulb 350. The specific form of each component is described in FIG.

When the PC strand wire nail 300 is installed to reinforce the ground in the cut portion or the fill portion, the connection bulb 250 of the first connection fixing body 200 and the PC strand wire nail 300 is connected using the connection member 400. do.

If the connection member 400 can be fixed by connecting the first connection fixing body 200 and the connection bulb 250 can be implemented in a variety of ways.

As described above, the landscaping stone 100 is erected on the foundation concrete formed on the ground, and the PC strand wire nail 300 for the ground reinforcement in the first connection fixing body 200 and the cut or fill soil which is inserted and installed in the landscape stone 100. ) Is connected to the connection member 400, the backfill is performed in the empty space formed between the landscape stone 100 and the cut portion or fill portion.

Specifically, the drainage layer 31 using gravel for drainage may be formed on the rear side of the landscape stone 100. In addition, the part except the drainage layer 31 can be backfilled using earth and sand.

The process of backfilling can utilize a variety of techniques that have already been disclosed.

3 is an enlarged view of a portion A of FIG. 2.

As shown, FIG. 3 relates to an enlarged shape of the portion A of FIG. 2, which is one embodiment of the first connecting fixture 200 inserted into and fixed to the first perforation 101 formed in the landscape stone 100. Indicates.

The first connecting fixture 200 is a guide rod 210 is inserted into the first perforation 101, expansion tube fixing tube 220 and the guide rod 210, one end is expanded while moving along the outer peripheral surface of the guide rod 210 It is fixed to the other end of the connecting member 400 includes a connecting ring 230 to form a ring that can be connected.

Here, the guide rod 210 is formed of a rod having a predetermined length, and forms a head 211 having a large diameter at one end, and a thread 212 is provided at the other end so that the connecting ring 230 can be screwed. do.

The head 211 of the guide rod 210 is formed to be inclined at a predetermined angle at one end thereof, so that one end of the expansion tube fixing tube 220 can be expanded while the expansion tube fixing tube 220 slides.

Expansion tube fixing tube 220 is formed of a tube so as to slide to the outer peripheral surface of the guide rod 210, the end of the tube is divided into a plurality of slits, expansion tube fixing tube 220 is moved to the head 211 of the guide rod 210 In this case, it is expanded along the inclination of the head 211.

Here, the expansion means that the pipe is divided into a plurality of slits and passes through the head 211 having a large diameter, and the portions divided by the slits are expanded.

The expansion tube fixing tube 220 is fixed to the inner wall of the first hole 101 while being expanded.

The connection ring 230 has a ring to which the connection member 400 can be connected at one end, and forms a female screw to which the guide rod 210 can be coupled at the other end.

However, the guide rod 210 and the connecting ring 230 may be screwed, of course, may be formed integrally in some cases.

4 is a view showing another shape in which the portion A of FIG. 2 is enlarged.

As shown, the first connecting fixture 200 according to Figure 4 is formed of a rod having a predetermined length so that one end can be inserted into the first perforation 101, the other end is connected to the connecting member 400 It is formed to have a connecting ring 242.

A fixing agent may be used to fix the first connecting fixture 200 to the first perforation 101.

As the fixing agent, a fixing agent such as a confix may be filled in the first hole to fix the first connection fixing body 200.

The first connection fixing body 200 is connected to the connecting member 400 by the turnbuckle 250, and the tension is applied using the turnbuckle 250 to firmly secure the first connection fixing body 200 and the PC strand wire nail 300. Can be connected.

The turnbuckle 250 includes ring portions 251 and 253 formed as rings on both sides and a body portion 252 for tensioning both ring portions 251 and 253 through screwing.

Therefore, by rotating the body 252 in a state in which the first connection fixing body 200 and the PC strand wire nail 300 are connected to both ring portions 251 and 253, the first connection fixing body 200 and the PC strand wire The nail 300 may be tensioned.

FIG. 5 is an enlarged view of a portion B of FIG. 2.

As shown, the PC strand wire nail 300 is installed to the ground reinforcement in the second hole 11 formed in the cut portion or fill portion of the PC strand itself so that it can be connected to the first connection fixture 200 The first fastening device 340 for fixing the pressure plate 330 and the second fastening device 360 for maintaining the shape of the bulb 350 to form the bulb 350 and to be connected using the bulb 350. It includes.

PC strand wire nail 300 is made of a PC strand (310), a fixing body 370 for fixing one end of the PC strand (310) formed to a predetermined length, the PC strand (310) is made to be inserted into the hole to be fixed 2 perforations 11 includes a pressure plate 330 for fixing the ground around the inlet, the first plate 330 for fastening and fastening the pressure plate 330 and the PC strand (310).

As such, the PC strand wire nail 300 is inserted into the second perforation 11 in order to reinforce the ground, grouting, and is fixed by the pressure plate 330 and the first fastening device 340 while ground reinforcement work Is completed.

However, one bulb 350 is formed at one end of the PC strand wire nail 300 completed as described above, and the bulb 350 is fixed by the second fastening device 360 again.

Specifically, the PC strand is formed by twisting a plurality of strands. For example, six strands may be twisted around one strand to form a strand of seven strands.

Accordingly, the PC strand 310 passes through the pressure plate 330 and releases the bulb 350 by twisting the plurality of strands of the portion protruding to a predetermined length after being fastened by the first fastening device 340. Form.

Then, the formed bulb 350 is fixed using the second fastening device 360 so that it is no longer loosened.

The connecting member 400 is connected through the bulb 350 formed as described above, thereby fixing the landscape stone 100.

Here, the first fastening device 340 and the second fastening device 360 may be formed in the same structure. However, the first fastening device 340 supports and fixes the pressure plate 330, and the second fastening device 360 serves to support and fix the bulb 350.

Specifically, as shown in FIG. 7B, the first fastening device 340 and the second fastening device 360 are wedge-nuts 341 and 361 supporting the pressure plate 330 and the bulb 350. And wedges 342 and 362 securing the wedge nuts 341 and 361 to the PC strand 310.

6 is a view showing a second embodiment of the retaining wall connection structure according to the present invention.

As shown, the second embodiment of the retaining wall connecting structure according to FIG. 6 uses the connecting member 400 to connect the first strands 200 fixed to the first drilling of the landscape stone 100 using the PC strand wire nail 300. ), The pressure plate 330 of the PC strand nail 300 is used.

This is different from that of directly connecting and fixing the connecting member 400 to the bulb 350 of the PC strand 300 in FIG.

In order to be connected to the connection member 400, the pressure plate 330 is provided with at least one hole in which the second connection fixing body 380 to which the connection member 400 is connected can be inserted and fixed.

7 shows an embodiment in which two holes are formed at symmetrical positions.

One end of the second connection fixing body 380 forms a connection ring to which the connection member 400 can be connected, and the other end of the second connection fixing body 380 is threaded to be screwed with the hole of the pressure plate 330.

A number of holes are formed in the acupressure plate so as to be connected to the plurality of landscape stones 100, 110, and 120 using one pressure plate 330, and the second connection fixing body 380 is screwed into the formed holes, Can be connected to the landscape stone for support. This can be applied flexibly according to the working environment.

7B shows the shape of wedge-nuts 341 and wedges 342 of the first and second fasteners. The wedge 342 is inserted into and fixed to the empty space of the wedge nut 341 and the PC strand 110. After the wedge 342 is inserted and fixed, tensile force is generated in the PC strand 310 by the elasticity of the PC strand 310, and consequently, the wedge 342 is an empty space between the PC strand 310 and the wedge nut 341. It can be inserted more deeply and more firmly fixed.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. The present invention is not limited to the drawings.

1 is a view showing the prior art.

2 is a view showing a first embodiment of the retaining wall connecting structure according to the present invention.

3 is an enlarged view of a portion A of FIG. 2.

4 is a view showing another shape in which the portion A of FIG. 2 is enlarged.

FIG. 5 is an enlarged view of a portion B of FIG. 2.

6 is a view showing a second embodiment of the retaining wall connection structure according to the present invention.

FIG. 7 is a view illustrating an enlarged shape of portion A of FIG. 6.

Claims (9)

A first connecting fixture fixed to the first perforation formed in the landscape stone; Inserting and grouting the PC strand including the fixing unit at one end into the second perforation formed in the cut or fill section, the PC strand and the pressure plate is fixed using a first fastening device, and a bulb is formed at the other end of the PC strand PC strand wire nail to secure with a second fastening device by; And Retaining wall connecting structure comprising a connecting member for connecting the bulb of the first connecting fixture and the PC strand wire nail. The method of claim 1, wherein the first linkage is Retaining wall connecting structure, characterized in that to form a connecting ring is connected to the connecting member is connected to the expansion pipe and the other end of the guide rod to expand the slide of the end of the guide rod. The method of claim 1, wherein the first fastening device and the second fastening device of the PC strand wire nail A retaining wall connection structure comprising wedge nuts and wedges. The method of claim 1, wherein the bulb is Retaining wall connection structure, characterized in that the twist of the plurality of strands constituting the PC strands between the pressure plate and the second fastening device is formed by loosening. The method of claim 1, Retaining wall connection structure, characterized in that the turnbuckle is provided at one end of the connecting member, the tensile force acts on the connecting member according to the operation of the turnbuckle. A first connecting fixture fixed to the first perforation formed in the landscape stone; Inserting and grouting a PC strand including a fixture at one end into a second perforation formed in the cut or fill section, the PC strand and the pressure plate is fixed using a first fastening device, through at least one hole formed in the pressure plate PC strand wire nail is fastened to the second connection fixture; And Retaining wall connecting structure comprising a connecting member for connecting the first connecting fixture and the second connecting fixture of the PC strand wire nail. The method of claim 6, The second connecting fixture is formed in plural, each retaining wall connecting structure, characterized in that each second connecting fixture is connected using a first connecting fixture and a connecting member formed in a separate landscape stone. The method of claim 6, Retaining wall connection structure, characterized in that the turnbuckle is provided at one end of the connecting member, the tensile force acts on the connecting member according to the operation of the turnbuckle. The method of claim 6, wherein the first linkage is Retaining wall connecting structure, characterized in that to form a connecting ring is connected to the connecting member is connected to the expansion pipe and the other end of the guide rod to expand the slide of the end of the guide rod.

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