KR200291860Y1 - separator equipment of tension member for anchor method - Google Patents

Abstract

The present invention relates to a tension member dismantling device used in the anchoring method for reinforcing soft ground in civil engineering, and is installed on one end of the anchor and the one end of the tension member to release the fastening of the tension member. In addition, the release for removing the tension member is provided separately to prevent the inadvertent release of the tension member when transporting by mounting the anchor at the end of the tension member, and to freely repeat the fastening and release of the tension member to the anchor.

The tension member disassembly apparatus for anchor method of the present invention, in the tension member disassembly apparatus that can pull out the tension member 10, one end of which is fastened to the anchor (A), the tension member (10) fastened to the anchor (A) The other end portion of the) is cut and installed on one end of the cut tension member 10 to release the tension of the tension member 10, characterized in that the release (R) for removing the tension member 10 is provided. .

Description

Separator equipment of tension member for anchor method

The present invention relates to a tension member dismantling device used in the anchoring method for reinforcing soft ground in civil engineering work, and more specifically, the anchor is fastened to one end of the tension member and the tension is installed at one end of the tension member. It is a tension member disassembly device for the anchoring method provided separately to release the fastening of the member.

In the anchoring method, a grout hose and a tension member are inserted into a hole drilled by a perforator, and grout is injected through the grout hose, and when the injected grout is cured with the lower body, the cured grout and the ground are used by a tensioner. It is a method that reinforces the soft ground by tensioning the tension member, and it is mainly used in civil works such as earthquake construction, stabilization of tunnel shaft, reinforcement of stone and retaining wall.

The application of the anchor method has advantages such as effective construction management and shortening of air in urban construction. However, the construction of drilling equipment and drilling is performed due to the hypothesis of tension members whose strength is about 6 times higher than that of general rebars in the subsequent construction of adjacent areas. Equipment loss and air delays occurred. In order to solve this problem, an anchor was developed and used to remove the tension member in accordance with the construction process after completion of the excavation work, and this is the tension member dismantling device for the anchor method.

The anchor member dismantling device for the anchoring method has been proposed a myriad of them, but the Republic of Korea Utility Model Registration No. 20-0242474 is a combination of the body by the wedge seat and the cap fastening screw is formed by the outer ring fitted to the ring groove of the outer surface The wedge assembly is maintained in a state that is held in the direction of the inner ring groove is mounted in the inner ring groove and the membrane groove formed in the front of the inner ring groove to fit the membrane, and the membrane of the wedge assembly saddle the membrane of the elastic hook And a cap having a locking jaw to which the hook is inserted and locked.

In the anchor disassembly device configured as described above, the wedge assembly is pushed to the tension member while the wedge assembly is pushed into the tension member by pushing the rear end of the tension member in the state where the tension member is mounted. Once released, the wedge assembly, once retracted, is caught on the locking jaw of the cap as it is and does not come out even after pulling the tension member.

However, in the anchor disassembly apparatus of the above practical registration publication, when the tension member is assembled and transported in the wedge assembly, the tension member is inserted due to external impact so that the clamping portion fastened to the upper end of the wedge assembly is locked by the locking jaw of the cap. It can be, and this is because it is impossible to release when the clasp is locked in the cap, there was a problem that all the wedges of the wedge assembly is open and cannot be reused.

An object of the present invention is a research and development in order to solve the conventional problems as described above, the tension member by providing an anchor which is fastened to one end of the tension member and a release to release the tension member and release the tension member separately It is to provide a tension member disassembly device for the anchor method to prevent the inadvertent release of the tension member when carrying the anchor mounted at the end of the transport and to freely repeat the fastening and release of the tension member to the anchor.

1 is an assembled cross-sectional view showing a tension member dismantling device for anchor method according to a preferred embodiment of the present invention,

Figure 2 is an exploded perspective view showing only the anchor in Figure 1,

3 is an exploded perspective view showing an extract in Figure 1,

Figure 4a is a cross-sectional view showing a state in which the tension member is fixed to the anchor of the present invention,

Figure 4b is a cross-sectional view showing the process of the wedge unit is pushed by the wire of the tension member in Figure 4a,

5a and 5c is a view showing a process of pushing the wire of the tension member to the release head of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: tension member 10a, 10b: wire

12: tube 20: anchor head

21: wedge installation space 30: wedge unit

31: Wedge 32: Hole 1

33: ring groove 34: support plate

35: O-ring 40: spring

42: compression cover 50: wedge cover

60: release head 61: second hole

62: external thread 64: fixed bolt

70: release cover 71: third hole

72: internal thread 73: jaw

In the anchor member dismantling device for anchor method of the present invention for achieving the above object, in the tension member disassembly device that can pull out the tension member fastened to one end of the anchor, the other end of the tension member fastened to the anchor It is characterized in that the release is provided by cutting the part and installing at one end of the cut tension member to release the tension member and remove the tension member.

The release is formed of a second hole for receiving a tension member twisted by a certain pitch of seven strands of wire, a male thread is formed at the top, and a long bolt shape is fastened to a fixing bolt for selectively fixing the tension member at the tip portion thereof. To the release head of the release head, a third hole having a female thread at the bottom to be engaged with the male screw on the upper end of the release head, and a release jaw formed to engage two or more adjacent wires of the tension member on the inner surface of the third hole. Characterized in that configured.

In addition, the release is characterized in that the release head and the release cover are integrated into one.

The anchor is opened up and down and at least an anchor head having a wedge mounting space of the inner surface inclined at the top, the anchor head is installed to be placed in the wedge mounting space of the anchor head and the first to the tension member can be inserted to form a circle in the center Wedge unit having three wedges forming a cone shape to have a hole, and an o-ring on the outer surface of the wedge unit extending from the outer surface of the wedge unit, centering on a support plate fitted to the annular ring on the first hole. Compression cover to cover the wedge to ensure the smooth movement of the wedge, a spring to force the compression cover and wedge into the wedge installation space of the anchor head at all times, and fastened with the spring covered on the top of the anchor head to make it elastic Characterized in that consisting of a wedge cover.

Hereinafter, the tension member dismantling device for anchor method of the present invention will be described in detail based on the accompanying drawings.

1 is an assembled cross-sectional view showing a tension member disassembly device for anchor method according to a preferred embodiment of the present invention, Figure 2 is an exploded perspective view showing only the anchor in Figure 1, Figure 3 is an extract from Figure 1 The exploded perspective view shown.

As shown in the figure, the anchor member disassembly apparatus for the anchoring method of the present invention is an anchor (A) is fastened to one end of the tension member 10 hypothesized in the ground, and the tension member (10) fastened to the anchor (A) The other end portion of the) is cut and installed on one end of the cut tension member 10 is released by the release of the tension member 10 after the release of the tension member 10 consists of a release (R).

The tension member 10 is made of 7 strands of wire, and 6 strands of wire 10b are arranged around the center wire 10a and are twisted with a constant pitch.

The anchor (A) is composed of a wedge cover 50 which is covered to the anchor head 20 to elastically support the wedge unit 30 by the spring 40, the anchor head 20 is opened up and down At least a top has a wedge installation space 21 of the inclined inner surface, the wedge installation space 21 of the anchor head 20 is installed wedge unit 30 is seated. The lower end of the anchor head 20 is treated with a plastic tube 12 so that the airtightness is maintained even when the tension member 10 is inserted, and the waterproof effect to prevent water from penetrating into the anchor 10 Prevents rust.

The wedge unit 30 has one circle in the center so that the three wedges 31 have one cone shape so as to have a first hole 32 into which the tension member 10 can be inserted, and the first hole 32. The o-ring 35 on the outer surface is provided to extend the three wedges 31 with the support plate material 34 fitted in the annular ring 33 on the upper side thereof. Spiral irregularities are formed in the inner surface of the first hole 32 of the wedge unit 30 to prevent the tension member 10 from slipping or detaching from the wedge unit 30 when tensioning the tension member 10. Do it.

The top of the wedge unit 30 is covered with a compression cover 42 to ensure that each of the wedges 31 is smooth operation, the compression cover 42 and the wedge unit 30 of the anchor head 20 A spring 40 is provided to impart a force to be pushed into the wedge installation space 21 at all times, and the wedge cover 50 is fastened with the spring 40 covered on the top of the anchor head 20 to have elasticity. do.

The release R has a long pipe shape in which a second hole 61 is formed to receive a tension member 10 in which seven wires 10a and 10b are twisted at a constant pitch and a male screw 62 is formed at an upper end thereof. It is provided with a release head 60, the male screw 62 of the upper end of the release head 60, similar to the release head 60 to the female screw 72 of the lower end of the third hole (71) for receiving the tension member (10) The release cover 70 is fastened by the above. A locking jaw 73 is formed on the inner surface of the third hole 71 of the release cover 70 so that two or more wires 10b adjacent to each other of the tension member 10 are caught, and a tip portion of the release head 60 is formed. The fixing bolt 64 is fastened to selectively fix the tension member 10.

Although the release head 60 and the release cover 70 are illustrated and described as being fastened by the male screw 62 and the female screw 72, the release head 60 and the release cover 70 may be integrated into one.

The latching jaw 73 may be formed so that only one wire is caught according to the arrangement of the wires 10a and 10b constituting the tension member 10 or may be variously changed into a shape in which more wires are caught.

In the anchor member dismantling apparatus of the present invention configured as described above, the tension member 10 is fastened to one end thereof by the wedge unit 30 of the anchor A, as shown in FIGS. 1 and 4A. It is hypothesized in the ground under the condition of 10) being tensioned to the maximum. When the tension member 10 is cut in this state, the tension force applied to the tension member 10 is maintained in a released state.

In this state, when the end of the tension member 10 is cut through the second hole 61 formed in the release head 60 of the release (R), the end of the tension member 10 is the second end of the release head (60) Passing through the hole 61 is positioned below the locking step 73 formed in the third hole (71) of the release cover (70). In this case, as shown in FIGS. 5A and 5B, the engaging jaw 73 formed in the inner surface of the third hole 71 of the release cover 70 is placed on two adjacent wires 10b forming the tension member 10.

Afterwards, when hitting the end of the release cover 70 with a hammer or the like, the two adjacent wires 10b constituting the tension member 10 are formed on the inner surface of the second hole 61 of the release cover 70 as shown in FIG. 5C. Due to the formed locking step 73, only two wires 10b constituting the tension member 10 are pushed toward the anchor A.

Accordingly, the wedge unit 30 pushes the support plate 34 of the wedge unit 30 toward the wedge cover 50 as the two wires 10b constituting the tension member 10 are pushed toward the wedge cover 50 as shown in FIG. 4B. Due to the elastic force of) will be returned to its original position as shown in Figure 4a.

In other words, the wedge installation space 21 of the anchor head 20 is allowed as much as the wedge unit 30 is pushed when the two wires 10b constituting the tension member 10 push the wedge unit 30 momentarily. It extends radially by the o-ring 35 of the upper outer surface of the wedge unit 30 within the range, wherein the remaining wires 10a and 10b except for the two wires 10b of the tension member 10 are relatively tensioned. It is pushed toward the release R striking the member 10.

When the external force hitting the release R is exhausted, the wedge unit 30 is pushed into the wedge installation space 21 of the anchor head 20 due to the elastic force of the spring 40 to wedge 31 of the wedge unit 30. ) Are radially retracted and the outer surface of the tension member 10 is again maintained firmly gripped on the inner surface of the wedge 31 of the wedge unit 30.

By repeating the hitting of the above-described release (R), the tension member (the moment the two wires (10b) of the tension member 10 is pushed out of the end of the wedge 31 from the support plate material 34 of the wedge unit 30) Since the outer diameter of 10 decreases rapidly, the tension member 10 is released from the wedge 31 of the wedge unit 30.

That is, even if the wedges 31 of the wedge unit 30 are retracted, the two wires 10b constituting the tension member 10 are not fastened because they are smaller than the diameter of the first hole 32 of the wedge unit 30. .

As such, when the tension member 10 is released from the wedge unit 30 of the anchor A, the tension member 10 has its own weight and a slight frictional resistance, so that the fixing bolt 64 of the release head 60 is present. After fixing by tightening the) is to remove the tension member 10 by pulling the release (R).

As described above, the anchor member disassembly device for the anchoring method of the present invention is independent of rust or strong tensile repulsive force, which is a failure factor of dismantling the tension member in removing the tension member hypothesized in the ground by the anchor method, When dismantling the tension member due to carelessness when carrying the anchor mounted on the end, there is a peculiar effect that can be freely repeated repeatedly and fastened and released the tension member to the anchor.

In addition, by providing an anchor fastened to one end of the tension member and a release for fastening and dismantling the tension member, the number of parts of the anchor installed in the ground can be reduced, thereby simplifying the configuration.

Claims (4)

In the tension member disassembly apparatus that can pull out the tension member 10, one end of which is fastened to the anchor (A), the other end of the tension member (10) fastened to the anchor (A) is cut and cut A tension member disassembly apparatus for an anchor method, characterized in that a release (R) is provided at one end of the tension member (10) to release the tension member (10) and release the tension member (10). 2. The anchor head (20) according to claim 1, wherein the anchor (A) is opened up and down and has a wedge mounting space (21) of an inner surface inclined at least at the top thereof, and the wedge mounting space (21) of the anchor head (20). Three wedges 31 are formed in one cone shape so as to have a first hole 32 in which a tension member 10 can be inserted in a center in a circle and installed in the center thereof, and an upper portion of the first hole 32 is formed. Of the wedge unit 30, the o-ring 35 on the outer surface of the wedge unit 30, which is provided so as to extend the three wedges 31, around the support plate 34 fitted to the annular ring 33 of the wedge unit 30. Compression cover 42 to cover the top to ensure the smooth operation of the wedge unit 30, the force to always push the compression cover 42 and wedge 31 into the wedge installation space 21 of the anchor head 20 Spring 40 to impart, characterized in that the spring 40 is composed of a wedge cover 50 is fastened in a state covered on the top of the anchor head 20 to have elasticity A tensile member dismantling device for an anchor process. According to claim 1, wherein the release (R) is formed with a second hole 61 for receiving the tension member 10, the seven strands of the wire twisted at a constant pitch, the male screw 62 is formed on the top end portion A long pipe-shaped release head 60 to which a fixing bolt 64 capable of selectively fixing the tension member 10 is fastened, and a female screw at a lower end thereof so as to be engaged with the male screw 62 on the upper end of the release head 60. A release cover having a third hole 71 having a 72 formed therein, and a latching jaw 73 formed on the inner surface of the third hole 71 so that two or more wires 10b adjacent to each other of the tension member 10 are caught. Tension member dismantling device for an anchor method, characterized in that consisting of (70). The method of claim 3, wherein the release head 60 and the release cover 70 is a tension member disassembly apparatus for an anchor method, characterized in that integrated into one.