KR200249170Y1 - anchorage device for ground anchor with removing tension member using a suntype wedge - Google Patents

Abstract

The present invention is to move the solar wedge by manipulating the solar wedge-side tension member in the state that the external fixation of all the tension members is released, the wedge of all satellite wedges is released and the solar tension member and the satellite tension member are inverted to the state that can be removed. In order to improve the operability and reliability of the solar wedge and the assembly of the internal fixture in the internal fixture for the tension member removal ground anchor using the wedge, the satellite wedge seat (11 ') around the central solar wedge seat (11') A wedge having a main ring 1 having a main body 1 and a wedge open ring 22 for the wedge ring groove 23 formed at the front end portion thereof, and having a screw horn sheet mounting sheet groove 24 formed at the front of the open ring groove 23. A solar wedge assembly 2 composed of 21 and inserted into the solar wedge seat 11, a screwhorn 3 for dragging the solar wedge assembly 2 and locking it to the cap 6, and a satellite wedge seat 11 '. Satellite wedge assembly 2a inserted in And a cap 6 coupled to the front end of the main body 1 to protect the wedge assemblies 2 and 2a and having a screw hole 62 for screw horn fastening in the center of the bottom. The satellite wedge assemblies 2a are of the same type, and the solar wedge assemblies 2a are pulled to one side and the satellite wedge assemblies 2a are tightened with the force when the screw horn 3 is fastened to the screw hole 62 of the cap 6. Of an internal fixture for a tension member-removable ground anchor using a sun wedge consisting of a tow plate 4 which leads and moves towards the cap and a suspension port 5 which suspends and restrains the satellite wedge assemblies 2a to the tow plate 4. It is characterized by a configuration.

Description

Internal fixture for ground anchors using a solar wedge {anchorage device for ground anchor with removing tension member using a suntype wedge}

The present invention is to move the solar wedge by manipulation of the solar wedge side tension member in the state that the external fixation of all the tension members is released, so that the wedge of all satellite wedges is released and the solar tension member and the satellite tension member are inverted to a state that can be removed. The present invention relates to an internal fixture for a tension member-removable ground anchor using a solar wedge, and more particularly, to an internal fixture for a tension member-removable ground anchor using a solar wedge having excellent effect of improving the operability and reliability of the solar wedge and assembling of the internal fixture. will be.

Ground anchors, ie, earth anchors, are mainly used for the installation of earthquake-proof earthquake blocks in the vicinity of sites not excavated in the excavation work for construction or construction of construction and civil engineering structures, and for the installation of safety facilities for the suppression of soil loss on soft ground cutouts.

Ground anchors for such applications include compression type, tension type and acupressure type. Tensile ground anchors are the most commonly used type of ground anchors, but they are not able to remove the tension member. Anchor ground anchors are constrained by tip pressure, which makes it difficult to remove the tension member after construction.

In terms of securing the anchoring force, the tension-type ground anchor is reduced due to the tensile cracking of the grouting body over time, and the anchoring anchor is limited to each user, such as being applicable only to a rock which is capable of tip acupressure.

Ground anchors use anchoring materials (mild steel wire) with excellent tensile strength to insert anchor bodies into anchor holes drilled in the ground, and secure the anchoring force by applying load to the free long end, and when drilling deep into the ground using the anchoring force In order to improve the safety of related works, the earthen wall, ie, temporary earth wall, installed on the excavation surface will be stabilized. As a result, there are challenges to resolve such as complaints and additional construction costs to remove the tension material.

In consideration of this, there is an internal fixing agent for a ground anchor disclosed in Patent Publication No. 96-4273. This prior art internal anchor for ground anchors has a body with a wedge seat in the center and a satellite wedge seat around it, the sun wedge, the satellite wedge, the satellite wedge and the same number of spacers, the upward departure of the sun wedge and the satellite wedge. It consists of a top cover for prevention, and a cap which covers a main body.

However, the internal fixer for solar wedge-type ground anchors of this structure has a recovery action tension member for removing these tension members, in addition to the tension member bite of the satellite wedge that exhibits substantially tensile force, that is, a recovery action tension member that is bitten by a solar wedge. The physics has a high number of components, such as wedges, high assembly difficulty, low reliability of the solar wedge operability and its function has a problem in the removal efficiency of the tension material.

Also, all spacers are tapered sun wedges. The cutting difficulty is also high because the structure is tapered to correspond to the outer circumferential taper of the satellite wedge and the outer surface is made up of the circular arc corresponding to the hollow of the main body.

In addition, by inserting a ring groove at the rear of the center hole drilled in the axial direction at the center of the body, a C-shaped stop ring for the center material is inserted so that the center material inserted into the center hole does not fall to the rear of the body while the tension force is not applied. Has complicated the internal structure.

In addition, if the quoted tension member is loosened prior to removal of the recovery action tension member, there is a possibility that the pulling force acts on the tension member and slips off the solar wedge. Indeed, when this happens, the recovery action solar tensioner, which must be pulled back by the solar wedge, will not retreat, and the satellite wedge will not open. That is why all tension members are faced with no removal. The biggest problem is that the solar and satellite tensioners cannot be removed without the use of dedicated drawers.

Accordingly, an object of the present invention is to remove a wedge for all tension members by removing the wedge for all tension members by moving the solar wedge by manipulating the solar wedge-side tension member in the state in which external fixation to all tension members is released. It is to improve the operability and reliability of the solar wedge for removing the tension member from the internal fuser, and to improve the assembly of the internal fixture.

The internal fixing body of the present invention for achieving the above object is, the main body having a central wedge seat and a satellite wedge seat around the center, and a ring ring for the wedge is mounted on the open ring groove formed at the distal end, and screwed in front of the open ring groove A solar wedge assembly formed by a wedge with a horn seat seating groove formed therein and inserted into a solar wedge seat; a screwhorn for dragging the solar wedge and locking it in a cap; a solar wedge assembly inserted into a sun wedge seat at a satellite wedge seat; A satellite wedge assembly inserted into the upper seat and a cap coupled to the front end of the body to protect the wedge assemblies, the satellite wedge assembly of the same type as the solar wedge assembly, and the solar tension member to one side to turn the screw horn to the Towing the satellite wedge assemblies and moving them toward the cab with the force of engaging the slots, and the satellite wedge assemblies to the towing plate. Ah it is the configuration of the tension member suspending port combination removal type ground anchor for fixing the inner body using a wedge aspect of restraint, characterized.

1 is an example of the use of the ground anchor

Figure 2 is an exploded cross-sectional view of the internal fixing body according to the present invention

3 is a perspective view of a screw horn

Figure 4 is a cross-sectional view of the state where the tip of the solar tension member entered into the tension cap;

5 is a perspective view of a towing plate

6 is an exploded view of a suspension for satellite wedge assembly;

7 is an assembly longitudinal cross-sectional view in the state where the tip of the tension member is fixed

8 is a plan view of the cap off state in FIG.

9 is a cross-sectional view of the wedge bite is released

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

1 body 2: solar wedge assembly

2a: satellite wedge assembly 3: screwhorn

4: tow board 5: suspension

6: cap 21: wedge

52: pin 62: screw hole

In Fig. 1, the tension removing type ground anchor installed to stabilize the earth wall, the concrete retaining wall (E), and the like has a solar wedge assembly and a satellite wedge of a solar tension member (A) and a satellite tension member (A '). It is bitten by the assembly and inserted into the anchor hole (C), and the grout material (F) is filled and fixed. Then, the tension member (A, A ') is tensioned, and from the outside of the earth wall or concrete retaining wall (E) to the external fixture (D). The outer ends of the tension members A and A 'are fixed to stabilize structures such as the earth wall, the concrete retaining wall E, and the like.

In Figure 2, the tension member removal fixing agent according to the present invention, the main body 1 and the solar wedge assembly (2), the satellite wedge assembly (2a), screw horn (3), traction plate (4), suspension (5) , And a cap 6.

The main body 1 has a tubular shape, and an inverted cone wedge seat 11 is formed in the center thereof, and a plurality of satellite wedge seats 11a having the same size and shape are radially formed around the center. Under the sun wedge seat 11 and the satellite wedge seat 11a, a tube seat 12 is formed on which the tip of the tube enters and sits when the solar tension member and the satellite tension member inserted in the resin tube are inserted. In addition, the upper portion of the sun wedge seat 11 and the satellite wedge seat 11a is provided with an allowance in the form of a shape close to the direct wall given the risk of providing a space for the sun wedge assembly 2 or the satellite wedge assembly 2a to retreat. (13) and cap (4) for fastening screws.

The sun and satellite wedge assemblies 2, 2a are composed of a plurality of wedges 21, a wedge opening ring 22, and a wedge retracting ring 25. The wedge 21 is divided into two or three parts of the circumference, and the upper portion 21a of the outer circumferential surface almost faces similarly to the margin 13 of the wedge seat 11, and the lower portion thereof is the wedge seat 11 Is given a taper 21b. Opening ring 22 is inserted into the inner ring ring groove 23 formed at the end of the bite screw given on the inner surface of the wedge 21 to open the plurality of wedges 21 radially to release the wedge bite for the tension member, outwardly It is an elastic C ring. Immediately above the opening ring groove 23, a seat groove 24 for seating the seat 31 of the screw horn 3 in parallel with the opening ring 22 is also formed.

In addition, the wedge 21 forms a concave ring groove 25 on the upper outer surface of the seat groove 24 and inserts a concave ring 26 therein. The retracting ring 26 is a self-pressing body that maintains the assembly of the wedge assembly 2 and cooperates with the opening ring 22 to open the lower portions of the wedges 21 in a direction in which the bite to the tension member is released. .

In FIGS. 3 and 4, the threaded pyramid 3 is a solar wedge assembly that twists the solar tension member to one side with the external anchorage to the outer end of the solar tension member bitten by the wedge 21 of the solar wedge assembly 2 released. (2) the horn screw given the external thread in the center of the upper surface of the seat 31 to be seated in the seat groove 24 of the wedge 21 on the side of the solar wedge assembly by pulling back to the cap 6 and fixing therein. (32) is attached.

When the screw horn 3 is fastened to the horn hole 41 of the traction plate 4, the traction plate 4 is completely constrained to the horn screw 3 so that the traction plate 4 acts together with the traction plate 4. Wedge bites of all wedge assemblies 2, 2a are possible. Otherwise, when the tow board (4) faces away from the screw horn (3), when the tow board (4) is pressed with the screw horn (3), only the sun wedge assembly (2) moves to fix the sun tension member, but the screw horn (3) There is a situation in which the pressing force is not transmitted from the towing plate 4 to each satellite wedge assembly 2a so that the satellite tension member cannot be settled. Therefore, the neck of the horn screw 32 connected to the seat 31 is formed smaller than the diameter of the horn screw 31, and when fully fastened to the horn hole 41 of the tow board 4, the horn hole 41 is located on the neck. By confining, the tow board 4 is restrained.

The seat 31 is a constrainer that twists the solar tension member from which external fixation is released to one side so that the sun wedge assembly 2 is drawn when the horn screw 32 is engaged with the screw hole 62 of the cap 6. When the solar wedge assembly 2 is pulled by the solar tension member and subjected to fixation from the outside, the tension of the solar tension member by the wedge 21 is strong, so that the wedge 21 bites when turned to one side to recover the solar tension member later. The solar wedge assembly 2 is smooth to follow the solar tension member until the blade leaves the solar tension member.

While the sun wedge assembly (2) is holding the tip of the solar tension member (A), hold the outer end of the sun tension member (A) from which external fixation has been released until the wedge bites are released and return to the sun wedge assembly (2). It is possible to release the wedge bite of the solar tension member by itself, but this alone cannot be guaranteed to be complete until the wedge bite of all satellite wedge assemblies 2a for the plurality of satellite tension members.

In view of this, the tension cap 33 is formed on the bottom surface of the seat 31 of the screw horn 3, and the inner groove 34 of the tension tension cap 34 is formed in the twist direction of the element wire of the tip of the solar tension member. To increase friction with the sun tensioner tip, and turn until the retractor 3 fully retracts to pull the tow board 4 as far as possible so that all satellite wedge assemblies 2a are sufficiently retracted to wedge against the satellite tensioner. To release it.

Referring to FIG. 5, the towing plate 4 binds all satellite wedge assemblies 2a to the solar wedge assembly 2 so that the wedge assembly is retracted when the solar wedge assembly 2 retreats to provide wedge bites for the satellite tension member. The horn hole 41 is drilled in the center of the plate surface, and the satellite wedge assembly 2a and the same number of suspension holes 42 are drilled radially around the horn hole 41.

Referring to FIG. 6, the suspension sphere 5 suspends the satellite wedge assembly 2a on the towing plate 4 so that the sun wedge assembly 2 withdraws toward the cap 6 and guides the towing plate 4. A stand-alone seat 51 that engages the seat wedge 24 of the wedge 21 for the satellite wedge assembly 2a by dragging all satellite wedge assemblies 2a at a time to release the wedges for the satellite tension member. It is composed of a pin clip (52).

The sheet 51 is a disc in which the pin hole 53 for perforating the tip of the pin 52 of the suspension tool 5 in the center is perforated. Pin 52 is the front end is maintained in the coupling state, such as caulking, rivets, E-rings, etc., the pin head 54 of the rear end is caught on the upper edge of the suspension hole 42 of the traction plate (4) Relied on.

Returning to FIG. 1, the cap 6 inserts the solar and satellite tension members at the rear end of the main body 1, the tips of the solar tension members bite the solar wedge assembly 2 and the satellite tension material bites the satellite wedge assembly 2a. In this state, the front end of the main body 1 is prevented from infiltrating foreign matters, and when the solar tension member with external fixation released is turned to one side, the screw horn 3 which rotates along this is fastened to the cap 6 and locked. A screw 61 corresponding to the screw 14 of (1) is formed, and a screw hole 62 corresponding to the screw pyramid 3 is also formed therein.

On the other hand, there are two kinds of tension members: S type twisted in the right screw direction and Z type twisted in the left screw direction. When the horn screw 32 and the screw direction of the screw 14 and the screw hole 62 are the same, the main body 1 is used. When the cap 6 is fastened to the cap 6, the possibility that the screw horn 3 is fitted into the screw hole 62 of the cap 6 cannot be excluded. When such a situation occurs and tension the solar tension member, the horn screw 32 is damaged, and even if the solar tension member is turned on, the threaded horn 3 will develop into a situation in which the tension member cannot be removed. Therefore, when the tension member is an S type twist, the horn screw 32 and the screw hole 62 are the right screw, and the screw 14, the horn screw 32, the screw 14, and the screw 61 of the main body 1 are Changing the direction of is one way to avoid such disadvantages.

In FIG. 7, the horn screw 31 of the screw horn 3 assembled to the sun wedge assembly 2 is screwed into the horn hole 41 of the tow board 4, and the pin 52 is inserted into the suspension hole 42. The suspension hole 5 which is inserted into the pin hole 53 of the seat 51 and prevented from coming back by caulking, riveting, E-ring, etc. is assembled to the satellite wedge assembly 2a. After this assembly, the sun wedge assembly 2 is seated in the sun wedge seat 11 of the body 1 and the satellite wedge assembly 2a is seated in the satellite wedge seat 11a. At this time, the solar wedge assembly 2 and the satellite wedge assembly 2a cover the separator 7 on the taper 21b to recover the tension member from the solar wedge seat 11 and the satellite wedge seat 11a. Allow 21 to be easily separated and slipped.

The sun wedge assembly 2 and the satellite wedge assembly 2a are held loose in the body 1 while the tip of the solar tension member A inserted in the tube G is formed at the rear end of the body 1. Inserted into the tension member insertion hole and snapped to the solar wedge assembly 2, and the satellite tension member A 'was put into the tube G separately and inserted into the satellite tension member insertion hole formed in the main body 1, and then bitten by the satellite wedge assembly 2a. The pull plate 4 is pressed to fix the solar tension member A and the satellite tension member A ', and the cap 6 is fitted and twisted until the tip of the screw hole 62 reaches the end of the screw horn 3.

As such, when the cap 6 is tightly tightened, the force is transmitted directly through the horn 3 to the yangyang wedge assembly 2 and indirectly via the towing plate 4 to the satellite wedge assemblies 2a. Is passed to. This stabilizes the anchoring state of the solar tension member A and the satellite tension member A 'by the solar wedge assembly 2 and the satellite wedge assembly 2a.

It is assumed that the earth wall or the concrete retaining wall E is stabilized by applying tension to the solar tension member A and the satellite tension member A ', as shown in FIG. 1, and the solar tension member A after completion of the predetermined trench construction and underground structure construction. ) And the order of removing the satellite tension member A '.

First, the fixing to the outer ends of the solar tension member A and the satellite tension member A 'is released. External fixation to the solar tension member (A) and the satellite tension member (A ') can be released simply by removing the external fixer (D) or by cutting a portion of the tension member immediately inside the external fixture (D) with a welder. By releasing the external anchorage of the solar tensioner (A) and the satellite tensioner (A ') in any way, the reaction forces corresponding to the tension applied to the solar tensioner (A) and the satellite tensioner (A') at the moment are applied to the sheets (31, 51). Works.

After the anchoring of the solar tension member A and the satellite tension member A 'is released, the outer end of the solar tension member A is held by hand or bitten by a tool such as a pipe wrench and turned in the screw direction of the screw horn 3. All wedges 21 hold the tip of the solar tension member (A) or satellite tension member (A '), so the solar wedge assembly (2) rotates along the direction of the solar tension member (A) with the screw cone (3). .

The screw horn 3 is then fastened to the threaded hole 62 of the cap 6, as shown in FIG. 8, the solar wedge assembly 2 retreats along the screw horn 3 and the satellite wedge assembly 2a is the satellite tension member. It is drawn to the tow board 4 with (A ') open.

At some point, the tension material A then wanders in the solar wedge assembly 2. This is because the wedge 21 of the solar wedge assembly 2 which has rotated along the solar tension member A retracts with the opening ring 22 while retreating while the horn screw 32 is fastened to the screw hole 42 of the cap 6. This means that the wedge of the solar wedge assembly 2 with respect to the tip of the solar tension member A is finally released as shown by the interaction of the rim ring 26.

Thus, when the wedge of the solar wedge assembly 2 with respect to the tip of the solar tension member (A) is released, the satellite wedge assembly (2a) retracted by the solar wedge assembly (2) also releases the wedge for the satellite tension member (A '). It is a state.

The state where the tip of the solar tension member A and the satellite tension member A 'is freed in the solar wedge assembly 2 and the satellite wedge assembly 2a is so loose that it can be simply pulled out and removed by attraction. In this state, the solar tension member A and the satellite tension member A 'are gradually removed. Even when the solar tension member A and the satellite tension member A 'are drawn out, the solar wedge assembly 2 and the satellite wedge assembly 2a do not come out at all. The seat 31 of the screw horn 3 fastened to the cap 6 hangs the seat grooves 24 of all the wedges 21 so that the solar wedge assembly 2 and the satellite wedge assembly A 'are connected to the solar tension member ( This is because it prevents it from following A) and the satellite tension member (A ').

As described above, the inner fixing body for the solar wedge-type tension member-removable ground anchor according to the present invention may retract the solar wedge assembly by turning the solar tension member to one side after releasing the fixing to the outer end in the state where the solar and satellite tension members are fixed. The satellite wedge assemblies interspersed at that edge also retract in the same direction along the solar wedge assembly to release internal settling for the solar and satellite tensioners, and stay there to secure them so that they do not come out when the solar and satellite tensioners are drawn out. In this way, it is possible to easily release and remove the internal fixation to all satellite tension members by one simple operation of the solar tension members.

In addition, as compared with the conventional solar wedge type tension material removing internal fixing unit, the structure has fewer components and is easy to assemble, so the production and assembly of the parts are excellent, and the cost reduction effect due to the reduction of the number of parts is also great.

Claims (1)

The wedge ring ring 22 is mounted on the main body 1 having the central sun wedge seat 11 and the satellite wedge seat 11 'around the ring ring groove 23 formed at the distal end, and the ring ring groove 23 is formed. A solar wedge assembly (2) and a solar wedge assembly (2) inserted into the sun wedge seat (11), which consist of a wedge (21) formed with a screw-horn seat mounting groove (24) in front of the Screwhorn (3) locking to (6), a satellite wedge assembly (2a) inserted into the satellite wedge seat (11 '), and the wedge assembly (2, 2a) to protect the bottom and coupled to the front end of the body (1) In the cap 6, which has a screw horn fastening screw hole 62 formed at the center, the solar wedge assembly 2 is the same as the satellite wedge assembly 2a, and the solar tension member A is turned to one side to make a screw. Traction plate 4 for guiding the satellite wedge assemblies 2a and moving towards the cab by the force when the horn 3 is fastened to the screw hole 62 of the cap 6, and to the satellite plate wedge on the traction plate 4.Ripche (2a) of the internal fixation for removing suspended restraint tension member with the sun, characterized in that wedges made of a current sewer (5) type of ground anchor body.