KR102321304B1 - A Sleeve of facing member for construct retaining wall and facing member with it - Google Patents

Abstract

The present invention relates to a facing member for constructing a reinforcing earth retaining wall, and to improve the structure of a sleeve (reinforcement material insertion hole) embedded in the facing member to connect the band-shaped fiber reinforcement, thereby reducing the slack of the belt-shaped fiber reinforcement in the sleeve's connection passage. This is to prevent the bar, so that the strip-shaped fiber reinforcement 200 embedded in the facing member 100 for the construction of the reinforcing earth retaining wall and being opened to the rear surface 120 of the facing member 100 and embedded in the reinforcing soil body is connected to the left and right sides A sleeve 170 in which an arc-shaped connection passage 176 is formed between the inlets 172 and 174 of the sleeve 170, and the sleeve 170 has a belt-shaped fiber reinforcement 200 in the middle portion of the connection passage 176. A slack barrier 178 is formed so as to be in close contact with the front wall 176a of the .

Description

{A Sleeve of facing member for construct retaining wall and facing member with it}

The present invention relates to a facing member for constructing a reinforcing earth retaining wall, and to improve the structure of a sleeve (reinforcement material insertion hole) embedded in the facing member to connect the band-shaped fiber reinforcement, thereby reducing the slack of the belt-shaped fiber reinforcement in the sleeve's connection passage. made to prevent it.

As the prior art related to the present invention, 'retaining wall facing member with built-in reinforcing material insertion hole' in Patent Document 1 by the applicant of the present invention, 'Construction method of band-shaped fiber reinforcement for reinforcing earth retaining wall' in Patent Document 2, and 'reinforcing earth retaining wall' in Patent Document 3 A facing member for use, a reinforced earth retaining wall structure using the facing member, and a 'panel for reinforced earth retaining wall construction' of Patent Document 4 are disclosed.

The reinforcing material insertion hole (hereinafter, 'sleeve') disclosed in Patent Documents 1 to 4 described above has an arc-shaped connection passage connecting the inlets on both sides open to the rear surface of the facing member, so that the band-shaped fiber reinforcement is attached to a separate bracket or connector. It can be connected by directly inserting it into the facing member without using the Preferably, until the belt-shaped fiber reinforcement exposed to the rear of the facing member is pulled back, it is in a somewhat loose state inside the connection passage, which forms a predetermined width in the front and back due to the elastic force of the belt-type textile reinforcement itself, that is, on the front wall of the connection passage. A non-adherent state is achieved. When the reinforcing soil body is poured and compacted in such a state, slack exists between the facing member and the band-shaped fiber reinforcement material, so that the reinforcing soil body is subjected to compaction force or by the load of the reinforcing soil body itself. As the facing member is pushed forward, there is a fear that a satiety phenomenon may occur.

In order to solve this problem, Patent Documents 1 to 4 use a method of inserting a fixing nail to maintain a state in which the reinforcing material is folded in half on both sides of the inlet side of the sleeve. On the side, there was a situation in which the reinforcing material was still not completely in close contact with the front wall of the connecting passage. Because it was separated from the front.

On the other hand, if the front and rear width of the connecting passage is made narrow, the above-mentioned problem can be solved, but if the front and rear width of the connecting passage is made narrow, it is not easy to insert the band-shaped fiber reinforcement. There is a problem that it is not easy to fold and insert the sleeve, and the structural strength of the sleeve itself is also lowered, so when inserting into the mold for molding the facing member and then pouring concrete to mold the sleeve, deformation may occur. There were also concerns.

Korea Patent Publication No. 10-2014-0134150 (2014.11.21) Korean Patent Registration No. 10-1397432 (2014.05.14.) Korean Patent Registration No. 10-1534541 (2015.07.01.) Korean Patent Registration No. 10-1528238 (2015.06.05.)

The present invention has been devised to solve the above problems, and an object of the present invention is to improve the structure of the sleeve so that it is easy to insert the band-shaped fiber reinforcement into the sleeve embedded in the facing member, and the belt-type fiber reinforcement can be used on the front wall of the connection passage of the sleeve. This is to prevent the filling of the facing member from occurring during or after the construction of the reinforcing earth retaining wall due to the looseness of the band-shaped fiber reinforcement by making it in close contact with it.

In order to achieve the above object, the present invention relates to a sleeve having a connection passage formed between the inlets on the left and right so that a band-shaped fiber reinforcement embedded inside a facing member for constructing a reinforcing earth retaining wall and opening to the rear surface of the facing member is connected to the reinforcing soil body. , The sleeve provides a sleeve that is embedded in the facing member for the reinforcing earth retaining wall formed with a loose sill for making the band-shaped fiber reinforcement in the middle portion of the connection passage closely adhere to the front wall of the connection passage.

The present invention also provides a facing member for the reinforcing earth retaining wall in which the above-described sleeve is embedded.

The sleeve according to the embodiment of the present invention can prevent the loosening of the band-shaped fiber reinforcement inserted into the connection passage, thereby solving the filling phenomenon of the facing member during and after construction of the retaining wall, and does not use a separate fixing pin. The band-shaped fiber reinforcement can be adhered to the front wall of the connection passage without any looseness, so the connection work of the reinforcement can be done quickly and efficiently. Thereby, there is an effect that the productivity of the sleeve can also be improved.

1 is a partially cut-away perspective view of a sleeve according to an embodiment of the present invention;
Figure 2 is a rear perspective view of the sleeve shown in Figure 1;
3 is a rear view of the sleeve;
4 is a cross-sectional view taken along line A - A' of FIG. 3;
5 is a cross-sectional view taken along line B - B' of FIG. 3;
Figure 6 is a perspective view of a state in which the belt-type fiber reinforcement is connected to the facing member in which the sleeve of the present invention is embedded;
7 is a cross-sectional view taken along line C - C' of FIG. 6;
8 is a cross-sectional view taken along line D - D' of FIG. 6;
9 is a dry forming process diagram of the facing panel;
10 is an enlarged view of the sleeve and reinforcing bar shown in FIG. 9;
11 is a perspective view of a sleeve showing another embodiment of the present invention.

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

1 to 5 show a sleeve 170 according to an embodiment of the present invention, and FIGS. 6 to 8 show a facing member 100 for a reinforcing earth retaining wall in which the sleeve 170 according to this embodiment is embedded. It also shows a state in which the band-shaped fiber reinforcement 200 for supporting the facing member 100 is inserted into the sleeve 170 and connected thereto.

According to this embodiment, the inlets on the left and right so that the band-shaped fiber reinforcement 200 that is embedded in the facing member 100 for the construction of the reinforcing earth retaining wall and is opened to the rear surface 120 of the facing member 100 and is embedded in the reinforcing soil body is connected. A sleeve 170 in which a connecting passage 176 is formed between the 172 and 174, and the sleeve 170 is a front wall 176a of the connecting passage 176 in which the belt-shaped fiber reinforcement 200 is positioned in the middle of the connecting passage 176. ) to be in close contact with the loose sill 178 is formed.

In this embodiment, the left and right sides of the loosening bump 178 are at a gentle angle from the bottom surface 176b and the rear wall 176c of the connection passage 176 so as not to interfere with the insertion of the band-shaped fiber reinforcement 200 . It protrudes so that the middle part is formed to form a vertex, and when viewed from the outside, it is in a state of being depressed to the inside of the connection passage 176 , and when viewed from the inside of the connection passage 176 , it forms a protruding state.

In this embodiment, only one of the loosening bumps 178 is formed in the middle of the connection passage 176, but the present invention is not limited thereto. Of course, it can also be formed.

However, as in this embodiment, in a state in which the belt-shaped fiber reinforcement 200 is inserted into the connection passage 176 formed in an arc shape as in the present embodiment, the belt-type fiber reinforcement 200 is in close contact with the front wall 176a of the connection passage 176. In order to do this, even if only one slack sill 178 is formed in the middle position of the connection passage 176 formed in a symmetrical arc shape, a sufficient adhesion function can be exerted, and the left and right entrances 172 and 174 at both ends of the connection passage 176. Adhesion to the inside of is made by laying the strip-shaped fiber reinforcement 200 in parallel on the reinforcing soil body, or may be made by the close contact protrusions 172a and 174a protruding to the inside of the left and right inlets 172 and 174, of course.

In this embodiment, the inner bottom of the left and right inlets 172 and 174 is integrally formed with the contact protrusions 172a and 174a during blow molding of the sleeve 170. has the advantage of reducing

The contact protrusions (172a, 174a) have a protrusion height of about 10 to 20 mm, and an outer diameter of about 10 to 15 mm, which is formed to a maximum size that can be formed within a range that does not interfere with blow molding and demolding after molding. Preferably, since the close contact protrusions 172a and 174a are formed at positions spaced apart by a distance of about 10 to 20 mm from the inside of the inlets 172 and 174, that is, on the front wall side, when inserting and pulling the belt-shaped fiber reinforcement 200 In this case, the band-shaped fiber reinforcement 200 is mainly in contact with the rear wall (outer side) of the inlet on both sides, so that it does not cause any significant hindrance to the operation.

On the other hand, in the present embodiment, the outside of the left and right inlets 172 and 174 are made to coincide with the rear surface of the facing member 100, but the present invention is not limited thereto, and as in the embodiment shown in FIG. 11 , the facing member ( It is also possible to form flanges 172b and 174b in contact with the rear surface 120 of 100, which flanges 172b and 174b are on both sides of the base plate when the sleeve 170 is turned over on the base plate for molding the facing member. The inlets 172 and 174 are kept in close contact and serve to prevent concrete from flowing toward the inlets 172 and 174 on both sides, and at the same time, the rear surface 120 of the facing member 100 and the flanges 172b and 174b are the same. Since it is exposed so as to form a plane, the belt-shaped fiber reinforcement 200 is in direct contact with the rough concrete back surface of the facing member 100 during insertion and withdrawal operations of the belt-shaped fiber reinforcement 200 to effectively prevent damage such as being scratched. can be combined with

6 to 8 show a state in which the belt-type fiber reinforcement 200 is connected to the facing member 100 in which the sleeve 170 is embedded according to the present embodiment, which is the front end of the belt-type fiber reinforcement material 200. 170) is inserted inside and the rear is installed in a state of being spread in full width on the reinforcing soil body (not shown), and then the reinforcing soil body is covered and compacted to support the facing member 100. The front end portion is in close contact with the front wall 176a of the connection passage 176 in a state folded in half by forming a state sandwiched between the slack prevention sill 178 and the front wall 176a, whereby the sleeve (170) Since the internally connected belt-type fiber reinforcement 200 does not loosen itself, it is possible to effectively prevent the occurrence of fullness of the facing member even if time elapses during the compaction of the reinforcing soil body and after the construction of the reinforcing soil retaining wall. there will be

6 to 9 show a construction method in which the front end of the belt-shaped fiber reinforcement 200 is folded in half and inserted into the connection passage 176 of the sleeve 170, but the present invention is not limited thereto. ) can be applied as it is to the construction method of inserting and connecting the sleeve 170 in a state in which the front end of the front end is unfolded to the full width.

9 and 10 show a process of manufacturing the facing member in which the sleeve of the present invention is embedded by dry press molding rather than wet molding, which is a sleeve 170 and reinforcing bar on a base plate B made of an iron plate. (S10) of seating (180), placing the mold (M) on the base plate (B) (S20), and injecting the mortar (C) in which aggregate and cement are mixed (S30), press The molding of the dry facing member 100 is completed through the compression step (S40) by (P) and the molding die removal step (S50), and the sleeve 170 of this embodiment is vertically and horizontally as shown in FIG. The position is set by the reinforcing reinforcing bars 180 that are reinforced and bent to achieve a predetermined thickness in the upper and lower directions, and the entrances 172 and 174 on both sides are in close contact with the base plate B, and the mortar is injected and pressed, so in the molding process. It can be buried inside the facing member without fear of deformation by external pressure, and thus the facing member can be molded not only by wet but also by dry molding method, thus reducing manufacturing cost and omitting the steam coloring process. There is an advantage in that time can be reduced.

As described above, according to this embodiment, it is possible to prevent the slack of the belt-shaped fiber reinforcement inside the sleeve, so that the satiation phenomenon of the facing member does not occur, and it is possible to prevent the slackness prevention without using a separate fixing pin. As a result, the belt-shaped fiber reinforcement can be closely attached to the front wall of the connection passage, so that the connection work of the reinforcement can be performed quickly and efficiently. There are advantages such as being able to improve.

100: panel
110: front
120: back
130: side
140: side
150: top
160: if
170: sleeve
172,174 : Entrance
172a, 174a: close contact
172l,174b: Flange
176: connecting passage
176a: front wall
176b: bottom surface
176c: rear wall
178: slack bump
180: reinforcing bar
200: belt-type fiber reinforcement
B: base plate
C: Mortar
M: mold
P: press

Claims (5)

Connected between the inlets 172 and 174 on the left and right so that the band-shaped fiber reinforcement 200 embedded in the facing member 100 for constructing the reinforcing earth retaining wall and being opened to the rear surface 120 of the facing member 100 and embedded in the reinforcing soil body is connected a sleeve 170 having a passageway 176 formed therein;
The sleeve 170 has a slack preventing protrusion 178 formed in the middle of the connection passage 176 so that the band-shaped fiber reinforcement 200 is in close contact with the front wall 176a of the connection passage 176, but the slack The bump 178 protrudes at a gentle angle from the bottom surface 176b and the rear wall 176c of the connection passage 176 on the left and right sides so as not to interfere with the insertion of the band-shaped fiber reinforcement 200, so that the middle part is the apex (頂点). ) to form a recessed state inside the connecting passage 176 when viewed from the outside, and a protruding state when viewed from the inside of the connecting passage 176. A sleeve embedded in a facing member for reinforcing earth retaining wall.
delete delete The method according to claim 1,
On the inside of the left and right inlets 172 and 174, close contact protrusions 172a and 174a for maintaining a state in which the band-shaped fiber reinforcement 200 inserted into the inlets 172 and 174 is in close contact with the front wall 176a of the connection passage 176. A sleeve embedded in a facing member for a reinforcing earth retaining wall, characterized in that it is formed.
A facing member for a reinforcing earth retaining wall, characterized in that the sleeve 170 according to any one of claims 1 to 4 is embedded.

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