WO2009125935A1

WO2009125935A1 - Multi-purpose earth anchor bracket

Info

Publication number: WO2009125935A1
Application number: PCT/KR2009/001605
Authority: WO
Inventors: 손일준; 이만기; 남석우
Original assignee: (주)신기술산업
Priority date: 2008-04-08
Filing date: 2009-03-30
Publication date: 2009-10-15
Also published as: MY159716A; CN102046886A; EP2278076A1; KR100992942B1; KR20090107354A; AU2009234636A1

Abstract

The present invention concerns an earth anchor bracket for securing an anchor body which is inserted into the ground during earth-anchor working. The earth-anchor bracket of the present invention comprises: two facing side plates which are respectively provided with shaft holes; connecting members which are provided between the two side plates, and which connect the two side plates; and an earth-pressure means which is provided between the two side plates and which has a through-passing part for drawing out the free length of the anchor body and a rotational shaft for insertion into the axial hole. When the present invention is employed, a cylinder member into which the anchor body is inserted is able to rotate centred on a rotational shaft, and hence the position of the cylinder member is determined automatically in accordance with the pulling angle of the anchor body. Consequently, this eliminates an inconvenience of the prior art whereby a workman has had to set the position of the earth-pressure means daily. Additionally, a first bracket unit and a second bracket unit can be connected and used as a single earth anchor bracket, or else just the first bracket unit can be used by itself, and thus the present invention can be used for many purposes in diverse forms of earth-retention work. Consequently, the earth-anchor bracket of the present invention is advantageous in that it can provide a substantial reduction in construction costs since it obviates the need to provide earth-anchor brackets having constructions which differ depending on the nature of the earth-retention work.

Description

Multi-Purpose Earth Anchor Bracket

The present invention relates to an earth anchor bracket for fixing the anchor body (anchor body) inserted into the ground in order to prevent the collapse of the soft ground in accordance with the earth anchor method, specifically, the position of the acupressure means is anchored The present invention relates to an earth anchor bracket which can be used for various purposes in various earthquake methods while being automatically adjusted according to the tensioning direction of.

In general, when forming excavation hole of steep slope in the excavation work or foundation work of civil engineering and construction site, the earth anchor method is widely used to prevent the fall of the wall. The ground anchor method is briefly described as follows.

First, as shown in FIG. 1, a thumb pile (H-pile) is put on the ground, and after excavating the designated ground, a soil plate is inserted between each of the thumb piles to form the retaining wall (1).

Subsequently, the perforated wall 1 is drilled at a predetermined inclination angle, the anchor body 3 is driven in the perforated portion 2, and then primary grouting is performed for the fixed anchor length Lb. To fix the anchor body 3. In general, the anchor body (3) is based on the part that meets the perforations (2) after setting the virtual collapse line (dotted line in the drawing) according to the design criteria according to the soil between the edge of the bottom surface (6) of the excavation hole and the ground It is divided into a free anchor length (La) and the anchorage (Lb) and usually the first grouting is performed for the anchorage (Lb).

When curing of the primary grouting is completed, the anchor body 3 is fixed to the earth anchor bracket 10 installed on the horizontal beam 4 of the retaining wall 1 by applying a tensile force to the free field La of the anchor body 3. For this purpose, the free field La of the anchor body 3 is passed through a through portion formed in the earth anchor bracket 10 and then fixed using a cone 5 having a diameter larger than the through portion.

After fixing the anchor body 3 to the earth anchor bracket 10, secondary grouting is performed on the remaining portion of the perforated portion 2, whereby the tensile force of the anchor body 3 against the earth pressure wall (1) will be supported.

There are many types of earth anchor brackets used in the earth anchor method.

Figure 2 shows the earth anchor bracket 10 that was most used in the conventional construction site, two side plates 11 of substantially triangular shape installed parallel to each other, the side of the side of the same inclined sides of the side plates 11 (Iii) and an acupressure plate 12 having a penetrating portion 12a through which the anchor body 3 is drawn out.

However, since the tensile force applied to the anchor body 3 is very large, the use of this type of earth anchor bracket 10 frequently causes the acupressure plate 12 to be bent or the side plate 11 to be deformed during actual construction. do.

In addition, in the related art, the tension direction of the anchor body 3 and the reference tensile angle of the earth anchor bracket 10 do not coincide, which causes a problem of bending the anchor body 3 when installing the earth anchor bracket 10. As such, bending the anchor body requires a larger tensile force than in the normal case, and there is a problem in that the size or weight of the earth anchor bracket needs to be increased to support such pressure.

Patent No. 760213 is intended to solve this problem. In order to cope with various tension angles, a locking jaw engaging with the teeth on a cylinder supported by both side plates while forming a curved portion having teeth on the inclined sides of both side plates. It is proposed an earth anchor bracket having a structure formed.

However, even in the case of using the earth anchor bracket according to the registered patent, after mounting the earth anchor bracket on the horizontal beam, the operator has to inconvenience the need to mount the cylinder by selecting the teeth according to the tension angle.

In addition, since the earth anchor bracket of the above-described structure is fixed or mounted on two horizontal beams spaced apart from each other, a concrete wall applied to a continuous pile wall method or an underground continuous wall method without using the horizontal beams is used. There is a problem that can not be used.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an earth anchor bracket which can automatically adjust the position of acupressure means according to the tensioning direction of the anchor body without the operator adjusting the installation angle. .

It is also an object of the present invention to provide an earth anchor bracket that can be used for fixing anchors in various sites having different earthen screening methods.

The present invention, in order to achieve the above object, in the earth anchor bracket for fixing the anchor body (anchor body) inserted into the ground according to the earth anchor (earth anchor) method, each having two shaft plates and facing each other ; A connection member installed between the side plates to connect both side plates; It is provided between the two side plates, and provides an earth anchor bracket including a pressure axis having a rotating shaft coupled to the shaft hole and a through portion through which the free length of the anchor body is drawn out.

In the earth anchor bracket, the acupressure means may be a cylinder member having a through portion penetrated at both ends, and the rotating shaft may protrude from an outer surface of the cylinder member.

In addition, the both side plates may each have a curved portion at the upper end, and an engaging jaw having a curved surface mounted on the curved portion of both side plates may be formed on the outer side of the cylinder member.

In addition, the side plates, each of the first side plate with the shaft hole formed; It may be characterized in that it comprises a second side plate coupled to the first side plate by a coupling means, wherein the first side plate and the second side plate may be characterized in that it has a coupling edge that is engaged in a zigzag form with each other. have.

In addition, the side plates may be characterized in that the annular reinforcement member surrounding the periphery of the shaft hole is installed.

In addition, the first base plate and the second base plate spaced apart from each other are coupled to the bottom side of the side plate, characterized in that the reinforcing member is installed between the side plate and the first base plate or the second base plate. have. In addition, the bottom side of the side plate may be characterized in that the base plate having an anchoring hole for coupling the fixing anchor.

In addition, the present invention is provided with two first side plates each having a shaft hole and opposed to each other, a first connection member installed between the first and second side plates to connect the first and second side plates, and the first and second side plates A first bracket unit installed between the first bracket unit and the acupressure unit having a through shaft through which the rotating shaft inserted into the shaft hole and the free field of the anchor body are drawn out; A second bracket unit including two second side plates facing each other and a second connection member installed between the second side plates to connect the second side plates; It provides an earth anchor bracket comprising a coupling means for connecting the first bracket unit and the second bracket unit.

In addition, the present invention, the rotation shaft is formed on each inside, two side plates facing each other; A connection member installed between the side plates to connect both side plates; It is provided between the two side plates, and provides an earth anchor bracket comprising a pressure-bearing means having a shaft hole to which the rotating shaft is coupled and a free portion of the anchor body is drawn out.

According to the present invention, since the cylinder member into which the anchor body is inserted can rotate about the rotation axis, the position of the cylinder member is automatically determined according to the tension angle of the anchor body. Therefore, the inconvenience that the operator must determine the position of the shiatsu means one by one as conventional.

In addition, by connecting the first bracket unit and the second bracket unit can also be used as one earth anchor bracket, it can also be used for a variety of earth shielding method because only the first bracket unit can be used separately. Therefore, when using the earth anchor bracket of the present invention, there is an advantage that can greatly reduce the construction cost because it does not have to have the earth anchor bracket of the different structure according to the characteristics of the earthquake method.

1 is a view schematically showing the earth anchor method

Figure 2 is a perspective view showing one type of conventional earth anchor bracket

3 is a perspective view of the earth anchor bracket according to the embodiment of the present invention;

Figure 4 is an exploded perspective view of the earth anchor bracket according to an embodiment of the present invention

5 and 6 are respectively a perspective view showing the first bracket unit and the second bracket unit of the earth anchor bracket according to an embodiment of the present invention.

Figure 7 is a side cross-sectional view showing the installation of the earth anchor bracket according to an embodiment of the present invention

8a and 8b is a view showing a state in which the angle of the cylinder member is changed according to the tension direction of the anchor body

9 and 10 are side cross-sectional views showing various examples of use of the first bracket unit, respectively.

* Description of the symbols for the main parts of the drawings *

100: earth anchor bracket 110: side plate

111: first side plate 112: second side plate

114: shaft hole 120: connecting member

130a, 130b: first and second base plates

140: cylinder member 150: rotating shaft

160: first reinforcing member 170: second reinforcing member

3 and 4 are a perspective view and an exploded perspective view of the earth anchor bracket 100 according to an embodiment of the present invention, respectively.

Earth anchor bracket 100 according to the present invention is interposed between the two side plates 110, the side plates 110 facing each other, the connecting member 120 for connecting the both side plates 110, the both side plates First and second base plates (130a, 130b) are respectively spaced apart from each other at both ends of the bottom side of the 110, the cylinder member 140 installed between the side plates 110 to tension the free length of the anchor body ).

The cylinder member 140 includes a penetrating portion 141 penetrating both ends, and on the outside, two cylinders 140 protrude in opposite directions. Each rotation shaft 150 is inserted into the shaft hole 114 formed in both side plates 110, so that the cylinder member 140 is coupled in a rotatable state with respect to both side plates (110).

The rotating shaft 150 and the cylinder member 140 are preferably integrally molded, but are not necessarily limited thereto. The rotating shaft 150 may be in the form of a cylinder, or may be manufactured in a cylindrical shape to reduce the load.

Although the planar shape of the cylinder member 140 is illustrated as a quadrangular shape in the drawing, a cylinder member having a circular cross section may be used because it is not limited thereto.

Since the cylinder member 140 serves as a pressure-bearing means for applying a tensile force in the state in which the anchor body is drawn out, the shape of the cylinder member 140 does not necessarily have to be a cylinder shape. Therefore, another type of acupressure means may be used as long as it has a through part 141 through which the anchor body can be drawn out, and a rotation shaft 150 to be coupled to the shaft hole 114 of the side plate 110.

On the other hand, in order to properly distribute the pressure applied to the cylinder member 140 and guide the rotational movement properly, as shown in the upper upper end of the cylinder member 140, the locking step 142 for mounting to the upper end of each side plate 110 ) May be formed to protrude.

In this case, in consideration of the fact that the cylinder member 140 rotates about the rotation shaft 150, the side of the side engaging plate 142 in contact with each other in the side plate 110 to form a curved portion 113, while the locking jaw The bottom of 142 should be formed as a curved surface corresponding to the curved portion 113.

Since the anchor body drawn out through the cylinder member 140 is subjected to several tens of tons or more of pressure, the side plate 110 may be deformed. In order to prevent this, an annular first reinforcing member 160 surrounding the outer circumference of the shaft hole 114 may be installed on the outer side or the inner side of both side plates 110.

In addition, the second reinforcing member 170 is installed between the side plates 110 and the first or

second base plates

130a and 130b on the outer side (or the inner side) of both side plates 110. Although the second reinforcing member 170 is installed only between the first base plate 130a and both side plates 110, the same shape is also provided between the second plate 130b and both side plates 110. The second reinforcing member 170 may be installed.

The second reinforcing member 170 is vertically coupled to the side plate 110, preferably a plate having a wider width toward the lower end, but is not necessarily limited thereto.

The first and

second base plates

130a and 130b serve to distribute the pressure applied to both side plates 110 to the horizontal beam or the bottom surface, and have anchor anchoring holes 134 for anchoring. The anchor fastening hole 134 to fix the first base plate (130a) to the earth wall in the case of using only the first bracket unit (100a) by separating the earth anchor bracket 100 of the present invention as described below It is for inserting a fixing anchor.

Since the first base plate 130a should not prevent the anchor body from being drawn out through the cylinder member 140, when the length of the first base plate 130a is too long, as shown in FIG. A cutout 131 may be formed for withdrawal.

The second base plate 130b is a portion supported by a horizontal beam positioned at the bottom when installed, and has a locking end 132 formed by bending an upper end portion so as to be easily mounted on the lower horizontal beam.

In order to prevent the locking end 132 from being damaged due to the tensile force, a reinforcing part 119 is formed at the bottom of both side plates 110 to support the outer circumference of the locking end 132.

Meanwhile, both side plates 110 may be manufactured in one piece, but in the embodiment of the present invention, each side plate 110 is separately manufactured by the first side plate unit 111 and the second side plate unit 112 as shown. After combining it was configured. This is to apply the earth anchor bracket 100 of the present invention to a variety of earth clogging method as a specific use example will be described later.

The first side plate unit 111 and the second side plate unit 112 add the coupling plate 180 to the outer side (or the inner side), and then combine using the bolt 186 and the nut 185.

In order to increase the coupling force and the pressure resistance performance of the first side plate unit 111 and the second side plate unit 112, it is preferable to engage the coupling sides of the first side plate unit 111 and the second side plate unit 112 in a zigzag form. .

To this end, the side that is coupled to the second side plate unit 112 in the first side plate unit 111 is formed with a protrusion 116, the side that is coupled to the first side plate unit 111 in the second side plate unit 112. The coupling groove 117 is engaged with the protrusion 116 is formed. That is, the second side plate unit 112 is coupled to the first side plate unit 111 by using the coupling plate 180 in a state where the protrusion 116 and the coupling groove 117 are engaged. The protrusion 116 and the coupling groove 117 may be formed opposite to each other, the number may be more.

The coupling plate 180 may be fastened to the first side plate unit 111 and the second side plate unit 112 by bolts, and a portion of the coupling plate 180 is welded to the second side plate unit 112 in advance. Only the other part may be fastened to the first side plate unit 112 with a bolt.

The coupling plate 180 and the first side plate unit 111 are provided with

bolt holes

183 and 118 for bolting, respectively. When the coupling plate 180 is welded to the second side plate unit 112, a welding hole 184 may be formed in the coupling plate 180 for the convenience of welding.

Although the coupling plate 180 may be coupled only to the first side plate unit 111 and the second side plate unit 112, the first base plate may be coupled to the lower end of the first side plate unit 111 in order to increase the pressure resistance performance. The coupling plate 180 may also be coupled to 130a.

That is, as shown in the vertical plate 181 for coupling the coupling plate 180 to the first side plate unit 111 and the second side plate unit 112 and the horizontal plate bent at the lower end of the vertical plate 181 ( 182, and the horizontal plate 182 may be coupled to the first base plate 130a. To this end, the first base plate 130a includes a bolt fastening groove 136 for coupling with the horizontal plate 182.

The shaft hole 114 into which the rotation shaft 150 of the cylinder member 140 is inserted is formed in the first side plate unit 111. Therefore, the two first side plate units 111 are coupled using the connecting member 120 in a state where the cylinder member 140 is interposed therebetween, and the lower end portions of the first side plate units 111 are first base plate 130a. When coupled to the first bracket unit 100a usable independently as shown in Figure 5 is configured.

In addition, when the two second side plate units 112 are coupled to each other via the connection member 120, the lower ends of the two second side plate units 112 are coupled to the second base plate 130b as illustrated in FIG. 6. As described above, the second bracket unit 100b is configured. As shown in the drawing, the coupling plate 180 may be previously coupled to the second side plate unit 112 by welding or the like.

FIG. 7 is a view illustrating an example of use of the earth anchor bracket 100 connected to the first bracket unit 100a and the second bracket unit 100b by the coupling plate 180. That is, when there are two horizontal beams 4 spaced apart from each other on the outside of the retaining wall 1, the locking end 132 of the second base plate 130b is mounted on the lower horizontal beam 4 After pulling out the end of the free field of the anchor body 3 through the cylinder member 140, it is tensioned using the tensioner 200.

The tensile force is transmitted to both side plates 110 through the rotation shaft 150 of the cylinder member 140, and is then distributed to the upper and lower horizontal beams 4 by the first and

second base plates

130a and 130b.

At this time, since the cylinder member 140 is automatically aligned along the tensile direction due to the rotation shaft 150, the operator does not need to adjust the position of the cylinder member or the acupressure means as in the prior art.

8A and 8B are views illustrating the cylinder members 140 arranged at various angles.

9 is a view showing a state in which the anchor body is fixed using only the first bracket unit (100a) of the earth anchor bracket 100 of the present invention. This may be applied to a mud-blocking method where a horizontal beam is not mainly used, for example, a continuous pile wall method or an underground continuous wall method.

That is, the anchoring wall (W) formed by the above-described method is drilled to insert the anchor body (3), and then grouting for the anchorage, and the free field of the anchor body (3) to the first bracket unit (100a) Take out through the cylinder member 140 and fix it.

At this time, the fixing anchor 300 is inserted into the anchor fastening hole 134 formed in the first base plate 130a of the first bracket unit 100a to fix the first bracket unit 100a to the earth wall W. . Fixing anchor 300 may be installed in advance in the process of constructing the retaining wall (W).

As described above, since the cylinder member 140 is rotatable by the rotation shaft 150, the first bracket unit 100a having the same structure may be used even if the tension direction of the anchor body 3 is changed as shown. .

Meanwhile, in the related art, an earth anchor method for inserting an anchor body in the side of the earth wall W is mainly used, but using the first bracket unit 100a of the earth anchor bracket 100 of the present invention as shown in FIG. 10. Likewise, the anchor body can be installed directly on the ground at the top of the retaining wall (W).

By using this method, it is not necessary to perforate the concrete barrier wall (W) to install the anchor body (3). There is this. In addition, there is an advantage that the utilization space in the excavation hole is wider than when the bracket for supporting the anchor body 3 is installed on the side of the retaining wall (W).

Meanwhile, in the above, the shaft 150 is formed on the outside of the cylinder member 140, and the shaft shaft 114 into which the rotation shaft 150 is inserted is formed in both side plates 110.

For example, it is also possible to form a shaft hole on both sides of the cylinder member 150, and to form a rotating shaft coupled to the shaft hole in the inner side of the side plate (110).

As a result, the earth anchor bracket 100 of the present invention is characterized in that the acupressure means (or the cylinder member) is coupled to both side plates 110 so as to be rotated by the rotation shaft.

In the above description of the preferred embodiment of the present invention, the present invention is not limited thereto and may be modified or modified in various forms. And if such modified or modified embodiment also includes the technical spirit described in the claims to be described later belongs to the scope of the present invention.

Claims

In the earth anchor bracket for fixing the anchor body inserted into the ground according to the earth anchor method,

Two side plates each having a shaft hole and facing each other;

A connection member installed between the side plates to connect both side plates;

Acupressure means provided between the side plates and having a rotating shaft coupled to the shaft hole and a through portion through which the free length of the anchor body is drawn out;

Earth Anchor Bracket Including
The method of claim 1,

The acupressure means is a cylinder member having a through portion penetrating both ends, and the earth anchor bracket, characterized in that the rotating shaft protrudes on the outer surface of the cylinder member
The method of claim 1,

Both side plates are each provided with a curved portion at the upper end,

Earth anchor bracket, characterized in that the engaging projection having a curved surface mounted to the curved portion of the both side plates protruded on the outer side of the cylinder member
The method of claim 1,

The both side plates are respectively,

A first side plate on which the shaft hole is formed;

A second side plate coupled to the first side plate by coupling means;

Earth anchor bracket comprising a
The method of claim 4, wherein

Earth anchor bracket, characterized in that the first side plate and the second side plate has a coupling edge that is engaged with each other in a zigzag form
The method of claim 1,

Earth anchor brackets, characterized in that the side plate is provided with an annular reinforcement member surrounding the periphery of the shaft hole
The method of claim 1,

The first base plate and the second base plate spaced apart from each other are coupled to the bottom sides of the side plates,

Earth anchor bracket, characterized in that the reinforcing member is installed between the side plate and the first base plate or the second base plate.
The method of claim 1,

An earth anchor bracket, characterized in that the base plate having an anchoring hole for coupling the anchor anchor to the earth wall is coupled to the bottom side of the side plate.
In the earth anchor bracket for fixing the anchor body inserted into the ground in accordance with the earth anchor method,

Two first side plates each having a shaft hole and facing each other;

A first connection member installed between the first first side plates and connecting the first first side plates;

A first bracket unit installed between the first side plates, the first bracket unit including a pressure axis having a rotating shaft inserted into the shaft hole and a through portion through which the free length of the anchor body is drawn out;

Two second side plates facing each other,

A second connection member installed between the second side plates to connect the second side plates

A second bracket unit comprising a;

Coupling means for connecting the first bracket unit and the second bracket unit;

Earth Anchor Bracket Including
In the earth anchor bracket for fixing the anchor body inserted into the ground in accordance with the earth anchor method,

Two side plates each having a rotating shaft formed inside and facing each other;

A connection member installed between the side plates to connect both side plates;

Acupressure means provided between the side plates and having a shaft hole to which the rotating shaft is coupled and a through portion through which the free length of the anchor body is drawn out;

Earth Anchor Bracket Including