KR20230121413A - A Connecting bracket for anchor with reinforcing material of slope wall and connecting methods of thereof - Google Patents

Abstract

The present invention relates to a bracket for connecting the rear end of a reinforcing member to an anchor during the construction of a retaining wall in a cut portion, wherein the reinforcing materials (S, S') embedded in a reinforced soil body (G) are attached to the anchor (A) of the cut portion (P) as a connecting bracket 10 for connecting; In the connection bracket 10, anchor insertion holes 14 into which anchors A are inserted are formed at the rear of the body 12 through the front and rear, and are spaced apart at a predetermined width on the left and right sides in the front of the body 12 Two vertical ribs 16 are formed, and through holes 18 are formed in the left and right directions in the vertical ribs 16, so that the connecting pin 20 or the round rod 20' is inserted.

Description

A connecting bracket for anchor with reinforcing material of slope wall and connecting methods of it}

The present invention relates to a bracket for connecting the rear end of a reinforcing material to an anchor embedded in a cut part during the construction of a retaining wall in a cut part, and a connection bracket that can be firmly connected to an anchor regardless of a strip-type fiber reinforcement or a geogrid reinforcement and a reinforcing material using the same It's about how to connect.

In general, a reinforced soil retaining wall refers to a structure that builds a nearly vertical front wall by horizontally embedding a mesh or belt-shaped reinforcing material with high tension and high friction with soil in the backfill soil. Execute excavation along the natural slope line to the foundation point to be erected, install the foundation on the bottom, then fill and compact the earth to the height where the reinforcement of the lowermost layer will be installed, and install the front block (or panel) of the lowermost layer. And after the reinforcing material is laid, a reinforced soil retaining wall in which the front block (or panel) and the embankment are integrated is built while repeating this process.

On the other hand, Patent Document 1 discloses the above-mentioned strip-shaped fiber reinforcement, in which a polyester fiber bundle is disposed inside and a polyethylene resin is coated on the outside, and a folding groove is formed in the middle part along the length direction to form a front end of the reinforcement material. It can be folded in half width and hung in the reinforcing material insertion groove of a block or panel, as well as folded the rear end of the reinforcing material in half width and fixed to a passive resistor with a pin, or as disclosed in Patent Document 2, the exposed portion of the anchor embedded in the cut It is designed to be easy to hang on the ring formed in.

In addition, since the backfilling length of the reinforced soil retaining wall constructed in the cut part is short, the method of connecting the strip-shaped fiber reinforcement embedded in the reinforced soil body to the anchor of the cut part as described above to secure sufficient bearing capacity is a reinforced soil retaining wall disclosed in Patent Document 3 Also disclosed in Patent Document 4, a connector for connecting a geogrid to an anchor is disclosed, and Patent Document 5 also discloses an anchor nut for connecting a reinforcing material of a cut retaining wall.

On the other hand, since the conventional connector or anchor nut as described above is manufactured by a casting method, its molding and processing process are complicated and the manufacturing cost is high, and a male screw is formed at the end of the anchor for binding to the anchor (usually, deformed reinforcing bar). It had to be accompanied by a complicated construction process, and the weight was also heavy, which led to an increase in logistics costs, as well as a disadvantage that workers were easily fatigued during its transportation and installation. In the case of , the reinforcement material peeled off during construction, making the work difficult, and in the case of a closed ring, the reinforcement material had to be connected by threading it through the eye of the needle, so the work was not efficient. .

On the other hand, Patent Document 6 discloses a bracket for connecting a reinforcing material and an anchor of a cut retaining wall and a manufacturing method thereof, which has an anchor insertion hole 112 formed in the center as shown in FIGS. 1 to 3, and the anchor On the left and right sides of the insertion hole 112, a front surface 110 in which a reinforcing material insertion hole 114 is formed into which the rear end of the strip-shaped fiber reinforcement 200 embedded in the reinforcing soil body is inserted; A locking pin 170 extending at right angles from the upper and lower portions of the front surface 110 toward the rear, and the rear end of the strip-shaped fiber reinforcement 200 is caught at a position corresponding to the reinforcing material insertion hole 114 of the front surface 110. ) Disclosed is a bracket 100 composed of upper and lower surfaces 120 and 130 in which engaging pin insertion holes 122 and 132 are formed, respectively.

On the other hand, in the connection bracket 100 of Patent Document 6, the reinforcing material insertion hole 114 is formed on both left and right sides of the front surface 110, so that only a thin strip fiber reinforcement can be connected through this part. Moreover, since the hooking pin insertion holes 122 and 132 are formed on the upper and lower surfaces 120 and 130, the rear end of the strip-type fiber reinforcement is made in a way to stand up and insert it, so the connection work of the strip-type fiber reinforcement is cumbersome and inconvenient. However, there was a disadvantage in that it was impossible to connect the rear end of the geogrid reinforcement (network reinforcement) used for the reinforcement of the reinforcement soil body in the reinforcement soil retaining wall.

Korean Patent Registration No. 10-0660356 (registered on December 15, 2006) Utility model registration No. 20-0427946 (registered on September 26, 2006) Korean Patent Registration No. 1072414 (2011.10.05. Registration) Korean Patent Registration No. 10-1091846 (registered on 2011.12.02) Korean Patent Publication No. 10-2012-077041 (registered on December 28, 2012) Korean Registered Patent No. 10-1369209 (registered on February 25, 2014)

The present invention has been made to solve the above problems, and an object of the present invention is to provide a reinforcing material for a retaining wall of a cut portion and a bracket for anchor connection that can support a grid-shaped geogrid reinforcing material by connecting it to an anchor of a cut portion in addition to a strip-shaped fiber reinforcement material. It is to provide a bracket for connecting the reinforcing material of the retaining wall of the cut part and the anchor with an improved structure that can firmly connect the rear end of the reinforcing material to the anchor embedded in the cut part, and a method of connecting the reinforcing material using the same, not limited to the anchored position. .

In order to achieve the above object, the present invention is a connecting bracket for connecting a reinforcing material embedded in a reinforced soil body to an anchor of a cut portion; The connecting bracket has anchor insertion holes through which anchors are inserted at the rear of the body, which pass through the front and rear of the body, and in the front of the body, two vertical ribs spaced apart by a predetermined width are formed on the left and right sides, and the vertical ribs penetrate in the left and right directions. A bracket for connecting a reinforcing member and an anchor of a retaining wall of a cut portion in which a hole is formed to insert a connecting pin or a round bar is provided.

In another embodiment of the present invention, a connection bracket for connecting the reinforcing material embedded in the reinforcing soil body to the anchor of the cut portion; The connection bracket has a structure in which anchor insertion holes through which anchors are inserted into the body are formed through the body, and two horizontal wings spaced apart by a predetermined width are formed on the left and right sides of the body, and through holes are formed in the vertical direction in the horizontal wings. Provides a bracket for connecting the reinforcing material of the retaining wall of the cut portion and the anchor to be connected to the anchor by folding the rear end of the reinforcing material and inserting it inside the horizontal wing and fastening the connecting pin to the through hole.

The present invention is also a method of connecting a strip-shaped fiber reinforcement or a geogrid reinforcement to an anchor using the above connection bracket, by folding the rear end of the strip-type fiber reinforcement and inserting it into the vertical flesh of the connection bracket or the inside of the horizontal wing, and inserting the connecting pin into the above A reinforcing member connection method so that it is connected to the anchor by fastening to the through hole, fixing the connecting brackets to the anchors spaced apart from each other to the left and right of the cutout with wedge nuts, folding the rear end of the geogrid reinforcing member, and then inserting a round bar into the geogrid Provided is a reinforcement connection method in which the rear end of the geogrid reinforcement is supported by an anchor by inserting it in the through hole on the reinforcement material in the left and right directions, overlapping the erected geogrid reinforcement material, and burying it in the reinforcement soil body.

According to the above-described embodiments of the present invention, the connection bracket is made of a kind of crevice or biplane-like structure, so that the band-shaped fiber reinforcement can be connected to each anchor by fastening the connection pin to each connection bracket, and spaced apart from side to side The rear end of the geogrid reinforcing member can be folded and connected by hooking the connecting bracket to each anchor and inserting round bars such as reinforcing bars for a long time. There are useful effects such as enabling the construction of a solid reinforced soil retaining wall at the construction site of a reinforced soil retaining wall where the backfill length of the sieve is not sufficiently secured.

1 is a construction state diagram of a reinforcement connecting bracket according to the prior art;
Figure 2 is a side view of the construction state shown in Figure 1
Figure 3 is an enlarged view of the main part of Figure 2;
4 is a construction state diagram of the connection bracket according to the present invention;
Figure 5 is an enlarged view of the main part of Figure 4;
Figure 6 is a side cross-sectional view showing the state of Figure 5;
7 is a construction state diagram of a connection bracket according to another embodiment of the present invention;
Figure 8 is an enlarged view of the main part of Figure 7;
Figure 9 is a side cross-sectional view showing the state of Figure 8;
10 is a construction state diagram of a connection bracket according to another embodiment of the present invention;
Figure 11 is an enlarged view of the main part of Figure 10;
12 is a side cross-sectional view showing the state of FIG. 11;
13 is a front view of the connecting bracket shown in FIG. 11;

Hereinafter, preferred embodiments that do not limit the present invention will be described in detail with reference to the accompanying drawings.

4 to 6 show a bracket for connecting a reinforcing material according to an embodiment of the present invention and a connection state of a reinforcing material using the same.

As shown in the drawing, this embodiment discloses a connection bracket 10 for connecting the strip-shaped fiber reinforcement (S) embedded in the reinforcing soil body (G) to the anchor (A) of the cut portion (P), In the connection bracket 10, anchor insertion holes 14 into which anchors A are inserted are formed at the rear of the body 12 through the front and rear, and are spaced apart at a predetermined width on the left and right sides in the front of the body 12 Two vertical ribs 16 (shank) are formed, and the vertical shank 16 has a structure in which through holes 18 are formed in the left and right directions, so that the rear end of the strip-shaped fiber reinforcement (S) is folded to form the vertical shank 16 It is inserted into the inside of the anchor and connected to the anchor A by fastening the connecting pin 20 to the through hole 18.

In the drawing, reference number F is a facing member of a reinforced soil retaining wall, which is a panel or block made of various sizes and shapes, and reference number 30 is a wedge nut inserted into the rear end of the anchor (A), which is connected to the anchor (A) Bracket (10 ), and is composed of a structure in which an arc-shaped split wedge is inserted into the conical body and pressed on the surface of the anchor (A) to be fixed by a wedge action, such a wedge nut according to the present invention Since it is a technique known by a person skilled in the art to which it pertains, a detailed description thereof will be omitted.

In this embodiment, the connection bracket 10 is made in the form of a U-link or U-shaped ring such as a kind of clevis, and when viewed from the side, a vertical flesh part 16 protrudes upward from the front of the body 12. It forms an L-shape so that interference does not occur between the anchor A penetrating the body 12 and the connecting pin 20 inserted into the through hole 18, and the connecting bracket 10 is a reinforcing material ( In addition to the connection function of S), it serves to fix the acupressure plate (T) that is in close contact with the slope of the cut portion (P).

In the connection bracket 10 of this embodiment having such a structure, the exposed portion of the anchor A is connected to the body 12 with the wedge nut 30, and the through hole 18 of the vertical flesh portion 16 is connected to the strip-shaped fiber reinforcement. Since the rear end of (S) is connected to the connection pin 20, it is possible to maintain a solid and reliable connection state even with a simple connection structure.

In this embodiment, the connection pin 20 is designed to prevent the connection pin 20 from being left and right when connecting the strip-shaped fiber reinforcement (S) by using a conventional bolt and nut, but the connection In addition to bolts and nuts, the pin 20 may also use various types of short metal or synthetic resin rods.

In addition, in this embodiment, a roller 22 made of a single tube of metal or synthetic resin is inserted outside the connecting pin 20, so when folding and pulling the rear end of the strip-shaped fiber reinforcement (S), the roller 22 ) so that the surface of the connecting pin 20 and the strip-type fiber reinforcement (S) can be easily pulled without friction between the surface of the connecting pin 20 and the strip-type fiber reinforcement (S), so that it is easy to work in a taut state without sagging during installation has been

7 to 9 show a construction state according to another embodiment of the present invention. In this embodiment, by fixing the connecting brackets 10 to the anchors A spaced apart from left and right with wedge nuts 30, and inserting round bars 20' such as reinforcing bars in the left and right directions, the geogrid reinforcement ( The rear end of the geogrid reinforcing member (S') can be supported by the anchor (A) by folding the rear end of the geogrid reinforcing member (S') to be supported by the round bar (20') and then folding it up again and burying it in the reinforcing soil body.

In other words, after fixing the connection brackets 10 to the anchors A spaced apart from each other to the left and right of the cut portion P with wedge nuts 30, and folding the rear end of the geogrid reinforcing member S' , Geogrid reinforcing material (S') by inserting the round bar (20') into the through hole (18) in the left and right directions on top of the geogrid reinforcing material (S'), and laying the erected geogrid reinforcing material (S') overlaid and buried in the reinforcing soil body (G) The rear end of is supported by the anchor (A).

In FIG. 7, only one anchor (A) is shown, but in reality, long round rods (20') are installed so that they are continuously connected between a plurality of anchors (A) spaced apart from left to right, so that the rear end of the geogrid reinforcement (S') of a predetermined width You just have to work to support the wealth.

10 to 13 show a bracket for connecting a reinforcing member according to another embodiment of the present invention and a connection state of a reinforcing member using the same.

The present embodiment discloses a connection bracket 10 for connecting a strip-shaped fiber reinforcement (S) embedded in a reinforcing soil body (G) to an anchor (A) of a cut portion (P), the connection bracket (10) An anchor insertion hole 14 into which the anchor A is inserted is formed through the body 12 in front and back, and two horizontal wings 16 spaced apart by a predetermined width up and down are formed on the left and right sides of the body 12, The horizontal wing 16 has a structure in which through holes 18 are formed in the vertical direction, so that the rear end of the strip-shaped fiber reinforcement (S) is folded and inserted into the horizontal wing 16, and the connecting pin 20 is inserted into the through hole 18. By fastening to the hole 18, it is designed to be connected to the anchor A.

In this embodiment, the connection bracket 10 has a kind of biplane-like structure when viewed from the front as shown in FIG. 7, that is, two layers of wings are attached in parallel vertically to both sides of the aircraft body It is made of a shape so that interference does not occur between the anchor (A) passing through the anchor insertion hole 14 of the body 12 and the connecting pin 20 inserted into the through hole 18 of the horizontal wing 16. , The connection bracket 10 serves to fix the acupressure plate (T) in close contact with the slope of the cut portion (P) together with the connection function of the reinforcing material (S).

The spacing of the horizontal blades 16 may be manufactured wider or narrower than shown in the drawings according to the specifications of the reinforcing material, and may be manufactured in various specifications within a range that does not reduce the strength of the connecting bracket.

In the connection bracket 10 of this embodiment having such a structure, the exposed portion of the anchor A is connected to the body 12 with the wedge nut 30, and the through hole 18 of the horizontal wing 16 is connected to the strip-shaped fiber reinforcement. Since the rear end of (S) is connected to the connection pin 20, it is possible to maintain a solid and reliable connection state even with a simple connection structure.

In addition, in this embodiment, a roller 22 made of a single tube of metal or synthetic resin is inserted outside the connecting pin 20, so when folding and pulling the rear end of the strip-shaped fiber reinforcement (S), the roller 22 ) so that the surface of the connecting pin 20 and the strip-type fiber reinforcement (S) can be easily pulled without friction between the surface of the connecting pin 20 and the strip-type fiber reinforcement (S), so that it is easy to work in a taut state without sagging during installation has been

In addition, the connection bracket 10 of this embodiment is also shown in FIG. 7 by vertically connecting the round bar to the through hole 18 formed in the upper or lower horizontal wing 16 as in the first embodiment described above. As in, it is possible to connect the geogrid reinforcing material (S') to the anchor (A), and even at a site where the left and right construction intervals of the anchor (A) are wide, the band-shaped fiber reinforcement (S) is installed in the middle of the round bar (20'). It can also be connected by hooking the rear end.

As can be seen from the above-described embodiments, in the present invention, while commonly using the connection bracket 10 formed in the form of a kind of crevice, the connection pin 20 is connected to the connection bracket 10 according to the type of reinforcing material to be constructed. By inserting or inserting the round bar (20') long, the rear end of the reinforcing material (S, S') can be supported by the anchor (A), so regardless of the type of reinforcing material used in each construction site of the reinforced soil retaining wall, There is an advantage in enabling the construction of a solid reinforced retaining wall at a site where a sufficient backfill length cannot be secured, and when a round bar (20') is inserted into the connecting bracket (10), the left and right construction interval of the anchor (A) is reduced. Even in a wide site, it is possible to connect by hanging the rear end of the strip-shaped fiber reinforcement (S) in the middle of the round bar (20'), so that the reinforcement can be closely spaced according to the type of facing member or the situation at the construction site, thereby providing a solid bearing capacity. It is possible to build a reinforced soil retaining wall with

10: connection bracket
12: body
14: anchor insertion hole
16: Vertical Salbu (Horizontal Wings)
18: through hole
20: connection pin
20': round bar
22: roller
30: wedge nut
20': round bar
A: Anchor
F: absence of pacing
G: Reinforced soil body
P: cut-out
S: Belt-shaped fiber reinforcement
S': Geogrid reinforcement
T: acupressure plate

Claims (7)

As a connection bracket 10 for connecting the reinforcing materials (S, S') embedded in the reinforcing soil body (G) to the anchor (A) of the cut portion (P);
In the connection bracket 10, anchor insertion holes 14 into which anchors A are inserted are formed at the rear of the body 12 through the front and rear, and are spaced apart at a predetermined width on the left and right sides in the front of the body 12 Two vertical ribs 16 are formed, and through holes 18 are formed in the left and right directions in the vertical ribs 16 to insert a connecting pin 20 or a round bar 20'. Brackets for connecting reinforcement and anchors in retaining walls.
The method of claim 1,
When viewed from the side, the connection bracket 10 has a vertical flesh part 16 protruding upward in the front of the body 12 to form an L shape, and the anchor A and the through hole 18 penetrating the body 12 ) Bracket for connecting the reinforcing material of the retaining wall and the anchor, characterized in that there is no interference between the connecting pins 20 inserted into the cut.
As a connection bracket 10 for connecting the strip-shaped fiber reinforcement (S) embedded in the reinforcing soil body (G) to the anchor (A) of the cut portion (P);
The connection bracket 10 has an anchor insertion hole 14 through which the anchor A is inserted into the body 12, and is formed through two horizontal wings spaced apart by a predetermined width up and down on the left and right sides of the body 12. (16) is formed, and the horizontal wing 16 has a structure in which through holes 18 are formed in the vertical direction by folding the rear end of the strip-shaped fiber reinforcement (S) and inserting it into the horizontal wing 16 and connecting it. A bracket for connecting the reinforcing member of the retaining wall of the cut-out portion and the anchor, characterized in that it is connected to the anchor (A) by fastening the pin (20) to the through hole (18).
The method of claim 3,
The connection bracket 10 is formed in the form of a biplane in which two layers of wings are attached in parallel to both sides of the fuselage, and the anchors A and horizontal wings passing through the anchor insertion holes 14 of the body 12 16) so that interference does not occur between the connecting pins 20 inserted into the through holes 18, and the connecting bracket 10 closely adheres to the slope of the cut portion P along with the connecting function of the reinforcing material S A bracket for connecting the reinforcing material and anchor of the retaining wall of the cut, characterized in that it serves to fix the pressure plate (T) to be.
According to claim 1 or 3,
A bracket for connecting the reinforcing member of the retaining wall and the anchor, characterized in that the roller 22 is inserted into the connecting pin 20.
A method for connecting the strip-shaped fiber reinforcement (S) embedded in the reinforced soil body (G) to the anchor (A) of the cut portion (P) using the connection bracket (10) according to any one of claims 1 to 4 ,
By folding the rear end of the strip-shaped fiber reinforcement (S) and inserting it inside the vertical flesh part (16) of the connecting bracket (10) and fastening the connecting pin (20) to the through hole (18), it is connected to the anchor (A). Reinforcement connection method, characterized in that to be.
As a method for connecting the geogrid reinforcing material (S') embedded in the reinforced soil body (G) to the anchor (A) of the cut portion (P) using the connecting bracket (10) according to any one of claims 1 to 4 ,
Fix the connection brackets 10 to the anchors A spaced apart from each other on the left and right sides of the cut portion P with wedge nuts 30, fold the rear end of the geogrid reinforcing member S', and round bar 20' ) is inserted into the through hole 18 on the geogrid reinforcing material (S') in the left and right directions, and the built-up geogrid reinforcing material (S') is superimposed and buried in the reinforcing soil body (G), so that the rear end of the geogrid reinforcing material (S') is an anchor ( Reinforcement connection method, characterized in that supported by A).