KR100254057B1

KR100254057B1 - Jce removal anchor

Info

Publication number: KR100254057B1
Application number: KR1019970072705A
Authority: KR
Inventors: 신윤식
Original assignee: 오자키 카츠유키마에야마 히로노부; 고쿠도보사이 기쥬츠 가부시키가이샤
Priority date: 1997-12-23
Filing date: 1997-12-23
Publication date: 2000-04-15
Also published as: KR19990053114A

Abstract

본 발명의 목적은, 앵커내력에 악영향을 주지않고 간단하고 단시간에 사람의 손으로 인장재인 PC강선을 제거할 수 있는, PC강선의 고정금구, 및 이것을 이용한 제거식 앵커를 제공하는 데 있다. 내하체(11)와, 그 내하체에 고착된 고정금구(2)로 되고, 상기한 고정금구는, 본 발명의 PC강선의 고정금구는, 선단에 압착그립이 압착된 빼내기선(40)과, 상기한 빼내기선의 선단에 압착된 상기한 압착그립을 중심으로 해서 그 둘레에 배치된, 선단에 압착그립이 압착된 인장재인 PC강선(30)으로 된 선다발과, 상기한 선다발이 삽통되어, 인장재인 상기한 PC강선의 위치를 규정함과 함께 상기한 빼내기선의 빼내기에 의해 이탈가능한 홈을 관통구멍의 벽면에 소정의 간격으로 설치한 고정받침대(21)와, 상기한 선다발이 삽통되어, 상기한 고정받침대를 수납, 고정하는 고정받침대받이(20)와, 중심에 배치된 상기한 빼내기선 및 그 둘레에 배치된 인장재인 상기한 PC강선의 각각의 선단부를 압착하면서 상기한 고정받침대받이에 고착되는 고정부재(22, 23)로 이루어지고, 상기한 빼내기선이 상기한 압착그립을 중심으로 해서 그 둘레에 인장재인 상기한 PC강선의 상기한 압착그립을 배치해서 인장재인 상기한 PC강선의 상기한 압착그립의 후단부를 상기한 고정받침대의 선단면에 계지함과 함께, 상기한 PC강선을 상기한 고정받침대의 상기한 홈에 따라 규제해서 이루어진, 인장재인 PC강선의 고정금구(2)이다.SUMMARY OF THE INVENTION An object of the present invention is to provide a fastening tool for a PC steel wire, and a removable anchor using the same, which can remove a PC steel wire which is a tension member with a human hand in a simple and short time without adversely affecting the anchor strength. It consists of the lower body 11 and the fixing tool 2 fixed to the lower body, The fixing tool of the said fastening tool, The fixing steel of the PC steel wire of this invention, The extraction line 40 by which the crimping grip was crimped | bonded to the front-end | tip, And a bundle of wires made of PC steel wire 30, which is a tension member that is pressed against the tip of the crimping grip, which is arranged around the crimping grip crimped to the tip of the pull-out wire, and the above-mentioned bundle is inserted. In addition to defining the position of the PC steel wire as a tension member, the fixing base 21 and the line bundle inserted into the wall surface of the through hole at a predetermined interval are provided so that the grooves can be separated by the extraction of the wire. A fixed support base 20 for storing and fixing a fixed support, and each end portion of the PC steel wire, which is the above-mentioned extraction line disposed at the center and a tension member disposed around the fixed support, is fixed to the fixed support base. Consisting of fixing members (22, 23) The above-mentioned extraction line is arranged around the crimping grip, and the crimping grip of the PC steel wire as the tensioning material is placed around the crimping grip. It is fixed to the front end surface of and the said PC steel wire is fixed by the said groove | channel of the said fixing base, The fastening tool 2 of the PC steel wire which is tension material is formed.

Description

Removable anchor

본 발명은, 앵커정착제에 고착되는 PC강선의 고정금구, 최종적으로는 인장재인 PC강선을 앵커정착제로부터 철거하는 제거식 앵커에 관한 것이다.The present invention relates to a removable anchor which removes a fixing tool of a PC steel wire fixed to an anchor fixing agent, and finally a PC steel wire which is a tensile material from the anchor fixing agent.

예를 들면, 시가지에서, 토류(土留)에 이용하는 앵커를 부지(敷地)에 근접해서 설치한 경우, 앵커의 사용후에 앵커의 인장재 등이 남아 있으면, 나중에, 공사시에 지장을 주게 된다. 그래서, 앵커의 사용후에는, 이것을 철거하는 것을 제거식 앵커라고 한다. 제거식 앵커에는, 기계적으로 제거하는 것, 역학적으로 제거하는 것, 및 화학적으로 제거하는 것이 있다. 기계적으로 제거하는 것으로는 앵커보디와 PC강선을 커플링으로 접속하고, 제거시에 PC강선을 회전조작해서 커플링으로부터 빼내는 것이고, 역학적으로 제거하는 것으로는, PC강선과 빼내기용의 PC강선을 조합해서 제작한 인장재를 사용하여, 제거시에 긴장력을 부여해서 빼내기용의 PC강선을 빼내고, 인장재인 PC강선을 캡을 이용해서 한 체(體)씩 빼내는 것이고, 화학적으로 제거하는 것으로는, 미리 인장재의 어느 길이부분에 발열장치를 부착해 두고, 제거시에 이들의 장치를 작동시켜 인장재를 파단해서 빼내는 것이다.For example, in an urban area, when an anchor used for earth is provided close to a site, if a tension member or the like of the anchor remains after use of the anchor, it may cause trouble later in construction. Thus, after use of the anchor, dismantling it is called a removable anchor. Removable anchors include mechanical removal, mechanical removal, and chemical removal. To remove mechanically, connect the anchor body and PC steel wire by coupling, and when removing, rotate the PC steel wire to remove it from the coupling. To remove mechanically, combine PC steel wire and PC steel wire for removal. By using the tension member produced by using the tension member, the PC steel wire for pulling out by applying a tension force at the time of removal is removed, and the PC steel wire which is a tension material is pulled out one by one using a cap. The heating device is attached to any length of the device, and when removed, the device is operated to break and pull out the tension member.

상기한 종래의 제거식 앵커에는, 어느 것이나 구조가 복잡하고 이들의 구성 부품이 많고 또한 구조가 복잡하고, 게다가 제거조작에 불필요한 수고를 끼치며, 제거의 확실성의 점에서도 불안하다. 상기한 바와 같이, 역학적으로 제거하는 것으로는, PC강선과 빼내기용 PC강선을 조합해서 제작한 인장재를 사용하여, 제거시에 긴장력을 부여해서 빼내기용의 PC강선을 빼내고, 인장재인 PC강선을 잭을 이용해서 한 체씩 빼내는 것이므로, PC강선을 빼내는 데에 잭이 필요하고, 빼내는 시간도 장시간 걸린다.All of the above-mentioned conventional removable anchors are complicated in structure, many of these components, and complicated in structure, and also cause unnecessary labor for the removal operation and are unstable in terms of the reliability of removal. As described above, mechanical removal is performed by using a tensioning material manufactured by combining a PC steel wire and a PC steel wire to be pulled out, and applying a tension force at the time of removal to remove the PC steel wire for pulling out, and jacking the PC steel wire which is a tension material. Since it is used to pull out the sieves one by one, a jack is required to pull out the PC wire, and it takes a long time to take it out.

본 발명은 상기한 문제점을 해결하기 위해 이루어진 것으로, 그 목적으로 하는 바는, 앵커내력에 악영향을 주지 않고 쉽고 단시간에 사람의 손으로 인장재인 PC강선을 제거할 수 있는, PC강선의 고정금구, 및 이것을 이용한 제거식 앵커를 제공하는 데에 있다.The present invention has been made to solve the above problems, and its object is to fix the PC steel wire, which can easily remove the PC steel wire of the tension member with human hands in a short time without adversely affecting the anchor strength, And a removable anchor using the same.

본 발명의 PC강선의 고정금구는, 선단에 압착그립이 압착된 빼내기선(40)과 상기한 빼내기선의 선단에 압착된 상기한 압착그립을 중심으로 해서 그 둘레에 배치된 선단에 압착그립이 압착된 인장재인 PC강선(30)으로 이루어진 선다발이 삽통되고, 인장재인 상기한 PC강선의 위치를 규정함과 동시에 상기한 빼내기선의 빼내기에 의해 이탈가능한 홈을 관통구멍의 벽면에 소정의 간격으로 새겨서 설치한 고정받침대(21)와, 상기한 선다발이 삽통되고, 상기한 고정대를 수납, 고정하고, 내하체에 고착되는 고정대받침받이(20)와 중심에 배치된 상기한 빼내기선 및 그 둘레에 배채된 인장재인 상기한 PC강선의 각가의 선단부를 압압하면서 상기한 고정대받침대받이에 고착되는 고정부재(22, 23)로 구성되고, 상기한 빼내기선의 상기한 압착그립을 중심으로 해서 그 둘레에 인장재인 상기한 PC강선의 상기한 압착그립을 배치해서 인장재인 상기한 PC강선의 상기한 압착그립의 후단부를 상기한 고정받침대의 선단면에 계지함과 동시에, 상기한 PC강선을 상기한 고정받침대의 상기한 홈에 따라 규제해서 이루어진, 인장재인 PC강선의 고정금구(2)이다. 또, 본 발명의 PC강선의 고정금구는, 선단에 압착그립을 압착하고, 또 그 위에 선단에 스토퍼부(431)를 가지는 커플러(43)가 끼워진 빼내기선(40)과, 선단에 압착그립을 압착한 인장재인 PC강선(30)으로 이루어지고, 상기한 빼내기선의 상기한 커플러를 중심으로 해서 그 둘레에 인장재인 PC강선의 상기한 압착그립을 배치하고, 상기한 압착그립을 상기한 커플러의 상기한 스토퍼부에 당접시켜 이루어진 선다발이 삽통되고, 인장재인 상기한 PC강선의 위치를 규정함과 동시에 상기한 빼내기선의 빼내기에 의해 이탈가능한 홈을 관통구멍의 벽면에 소정의 간격으로 새겨서 설치한 고정받침대(21)와, 상기한 선다발이 삽통되고, 상기한 고정받침대를 수납, 고정하고, 상기한 내하체에 고착되는 고정대받침대받이(20)와, 중심에 배치된 상기한 빼내기선 및 그 둘레에 배치된 인장재인 상기한 PC강선의 선단부를 압압하고, 상기한 고정받침대받이에 고착되는 고정부재(22, 23)로 구성되고, 상기한 빼내기선의 상기한 커플러를 중심으로해서 그 둘레에 인장재인 상기한 PC강선의 상기한 압착그립을 배치함과 동시에 인장재인 상기한 PC강선의 상기한 압착그립의 후단부를 상기한 고정받침대의 선단면에 계지함과 함께 상기한 PC강선을 상기한 고정받침대의 상기한 홈에 따라 규재해서 이루어진, 인장재인 PC강선의 고정금구(2)이다.The fixed bracket of the PC steel wire of the present invention has a crimp grip crimped to a tip disposed around the center of the pull-out line 40 with the crimp grip crimped to the tip and the crimp grip crimped to the tip of the pullout line. A wire bundle made of PC steel wire 30, which is a tension member, is inserted, and the groove is detachable from the pull-out wire at predetermined intervals while defining the position of the PC steel wire, which is a tension material, and installed at a predetermined interval. One stationary support 21 and the above-mentioned bundle bundle are inserted, and the stationary support 20 is installed in the center and the support line 20 which is fixed to the lower body and is secured to the lower body and the peripheral line It consists of fixing members (22, 23) fixed to said support base support while pressing each end of said PC steel wire which is said tension member. The above-mentioned crimping grip of the PC steel wire, which is a tension material, is placed on the circumference, and the rear end of the crimping grip of the PC steel wire, which is a tension material, is engaged on the front end surface of the fixing base. It is the fixing tool 2 of PC steel wire which is a tension material made by restricting according to the said groove | channel of the fixing base. In addition, the fixing tool of the PC steel wire of the present invention is to press the crimping grip on the tip, and to take the coupler 43 having the stopper 431 on the tip and the crimping grip on the tip The crimped gripper is made of a PC steel wire 30 which is a crimped tension member, and the crimping grip of the PC steel wire which is a tension material is arranged around the coupler of the pull-out wire, and the crimping grip is the A fixed stand provided by inserting a line bundle made in contact with a stopper portion, defining the position of the PC steel wire as a tension member, and at the same time, inserting a groove which can be detached by the extraction of the pull line at a predetermined interval on the wall surface of the through hole. (21), the above-mentioned bundle bundle is inserted, and the support base 20 is fixed and accommodated and fixed to the said lower body, and the above-mentioned extraction line and its periphery arranged in the center. Composed of the fixing members 22 and 23 pressed against the tip of the PC steel wire, which is a tension member disposed thereon, and fixed to the fixed support base, wherein the tension member is circumferentially around the coupler of the pull-out wire. Placing the crimping grip of one PC steel wire and locking the rear end of the crimping grip of the PC steel wire that is a tension member to the distal end surface of the fixing buttock; It is the fixing tool 2 of PC steel wire which is the tension material which is prescribed | regulated by one groove.

본 발명의 제거식 앵커는, 선단에 압착그립이 압착된 빼내기선(40)과, 상기한 빼내기선의 선단에 압착된 상기한 압착그립을 중심으로 해서 그 둘레에 배치된, 선단에 압착그립이 압착된 인장재인 PC강선(30)으로 이루어진 선다발이 삽통되는 내하체와, 상기한 선다발이 삽통, 고정되고, 상기한 내하체에 고착되는 상기한 고정금구로 이루어진 제거식 앵커이다.In the removable anchor of the present invention, the crimping grip is crimped at the tip, which is arranged around the pull-out line 40 on which the crimping grip is crimped at the tip, and the crimping grip crimped at the tip of the pullout line. It is a removable anchor consisting of the inner body is inserted into the wire bundle 30 is made of the PC steel wire 30, which is a tension member, and the fixing bracket is inserted, fixed, and fixed to the lower body.

제1도는, 본 발명의 제거식 앵커보디이다.1 is a removable anchor body of the present invention.

제2도는, 제1도의 a-a 절단선에 있어서의 고정받침대의 세로절단 단면도이다.FIG. 2 is a longitudinal cut cross-sectional view of the fixing base in the a-a cutting line of FIG.

제3도는, 제1도의 b-b 절단선에 있어서의 고정받침대의 가로절단 단면도이다.3 is a cross-sectional cross-sectional view of the fixing base in the b-b cutting line of FIG.

제4도는, 고정받침대에 인장재 및 빼내기선을 계지한 상태의 단면도이다.4 is a cross-sectional view of a state in which a tension member and a pullout line are locked to the fixing base.

제5도는, 제4도의 절단선 5-5에서 본 절단 단면도이다.5 is a cross-sectional view taken along the line 5-5 of FIG.

제6도는, 제4도의 절단선 6-6(제1도에 있어서의 절단선 a-a)에서 본 절단 단면도이다.FIG. 6 is a cross-sectional view taken along cut line 6-6 (cut line a-a in FIG. 1) of FIG.

제7도는, 제1도의 절단선 c-c에서 본 내하체에 있어서의 단면도이다.FIG. 7 is a cross-sectional view of the load bearing body seen from the cutting line c-c in FIG.

제8도는, 제1도의 절단선 d-d에서 본 시스파이프에 있어서의 단면도이다.FIG. 8 is a cross-sectional view of the sheath pipe viewed from the cutting line d-d in FIG.

제9도는, 누름부재의 단면도이다.9 is a cross-sectional view of the pressing member.

제10도는, 캡의 단면도이다.10 is a cross-sectional view of the cap.

제11도는, 압착그립을 압착한 PC강선의 단면도이다.11 is a cross-sectional view of the PC steel wire which crimped the crimping grip.

제12도는, 압착그립을 압착하고, 그 위에 커플러를 피착한, 빼내기선의 단면도이다.12 is a cross-sectional view of the extraction line in which the crimping grip is pressed and a coupler is adhered thereon.

제13도는, 고정받침대받이에 고정받침대를 삽입해서 고정금구를 조립하는 상태를 설명하는 설명도이다.13 is an explanatory diagram for explaining a state in which the fixing bracket is assembled by inserting the fixing support into the fixing support base.

제14도는, 고정금구의 조립설명도이다.14 is an explanatory diagram for assembling the fastener.

제15도는, 본 발명의 제거식 앵커보디를 사용한 앵커공법의 설명도이다.15 is an explanatory diagram of an anchor method using the removable anchor body of the present invention.

다음에, 본 발명의 고정금구 및 그것을 이용한 제거식 앵커의 한 실시예를 나타낸다. 제11도에 나타내듯이, 압착그립(32)이, PC강선의 각각의 선단부에 압착되어 있다. 똑같이, 제12도에 나타내듯이, 제거시에 긴장력을 부여해서 빼내기 위한 빼내기용의 PC강선(40)의 선단부에도 압착그립(4)이 압착되고, 선단에 압괴가능한 또는 눌러 찌부려뜨리기 가능한 스토퍼부(431)가 형성된 커플러(43)가 이 압착그립(42)에 피착되어 있다. 내하체(11)는 원통형상이고, 둘레면은 꺼칠꺼칠한 면으로 되어 있는 것이 바람직하다. 내하체로서는, 금속제, 섬유강화 플라스틱제 등의 것이 이용된다. 제1도에 나타내듯이, 인장재(30) 및 빼내기선(40)의 고정금구(2)는, 선단에 압착그립이 피착된 인장재(30)와 빼내기선으로 이루어진 선다발이 삽통되고, 내하체(11)에 고착되는 고정받침대받이(20)와, 선단에 압착그립이 압착된 인장재(30)와 빼내기선(40)으로 이루어진 선다발이 삽통되고, 상기한 압착그립의 후단을 단면에 당접시켜서, 상기한 고정받침대받이에 삽입, 고정되는 고정받침대(21)와, 상기한 선다발의 선단을 압압하고, 상기한 고정받침대에 고착되는 고정부재(22, 23)로 구성된다.Next, an example of the fastener of the present invention and a removable anchor using the same is shown. As shown in FIG. 11, the crimping grip 32 is crimped | bonded to each front-end | tip part of PC steel wire. Similarly, as shown in FIG. 12, the crimping grip 4 is also squeezed to the distal end portion of the PC steel wire 40 for disengagement by applying tension at the time of removal, and the stopper portion which can be crushed or pressed at the distal end. A coupler 43 having a 431 formed thereon is attached to the crimping grip 42. It is preferable that the lower body 11 is cylindrical, and the circumferential surface is a drab surface. As a load-bearing body, things made of metal, fiber reinforced plastics, etc. are used. As shown in FIG. 1, in the fixing member 2 of the tension member 30 and the pullout line 40, a line bundle made of a tension member 30 and a pullout line having a crimp grip attached to the tip end is inserted thereinto, and the lower body 11 is inserted. ), And a bundle bundle consisting of a tension member (30) and a pullout line (40) having a crimping grip crimped to the front end is inserted into the support base 20, and the rear end of the crimping grip is brought into contact with the end face. It consists of a fixed support 21 is inserted and fixed to the fixed support base, and the fixing member (22, 23) to press the tip of the line bundle, and fixed to the fixed support.

상기한 고정부재는, 상기한 고정받침대받이에 수납되고, PC강선의 선단을 압압하는 누름부재(22)와, 상기한 누름부재를 수납하고, 상기한 고정받침대받이에 고착되는 캡(23)으로 구성된다. 또, 상기한 고정부재는, PC강선의 선단을 압압하고, 상기한 고정받침대받이에 고착되는 캡(23)이라도 좋다. 앵커보디(10)는, 인장재(30)와 빼내기선(40)으로 이루어진 선다발과, 상기한 선다발이 삽통되는 내하체(11)와, PC강선의 고정금구(2)로 구성된다.The fixing member is accommodated in the fixed support base, the pressing member 22 for pressing the end of the PC steel wire, and the cap 23 for receiving the pressing member and fixed to the fixed support base It is composed. The fixing member may be a cap 23 that presses the tip of the PC steel wire and is fixed to the fixing stand. The anchor body 10 is composed of a line bundle consisting of a tension member 30 and a pullout line 40, a lower body 11 through which the line bundle is inserted, and a fixing bracket 2 of a PC steel wire.

제1도에 나타내듯이, 고정받침대받이(20)는, 내하체(11)의 선단의 수나사에 나합되도록, 암나사가 설치되어 있다. 제2도 내지 제6도에 나타내듯이, 고정받침대(21)는, 축방향으로 관통구멍(211)을 가지며, 그 반경방향 바깥쪽으로, 인장재인 PC강선(30)의 위치를 규정함과 동시에 빼내기선(40)의 빼내기에 의해 인장재인 PC강선(30)이 이탈할 수 있는 축방향의 홈(21)이 일체로 되어 있다. 제1도 및 제13도에 나타내듯이, 누름부재(22)가, 고정받침대받이(20)내에 수납되고, 이어서 캡(23)이 고정받침대받이(20)에 나합되고, 고정받침대(21) 선단에 배치된 인장재인 PC강선 및 빼내기선의 선단부를 압압한다. 제9도에 나타내듯이, 누름부재(22)는, PC강선(30) 및 빼내기선(40), 및 각각에 압착된 압착그립(32), 및 (42) 또는 커플러(43)가, 고정금구(2)안에서 축방향으로 이동하지 않도록 고정하는 것으로, 인장재인 PC강선 및 빼내기선의 선단부에 당접하거나, 압착그립(32), 및 (42) 또는 커플러(43) 선단부에 당접하는 원반형상의 고정부(221)와 캡(23)의 밑바닥부에 당접하는 다리부(222)를 가지고 있다. 또, 누름부재(22)는 캡(23)내에 삽입되어 일체로 되어 있고, 누름부재(22)가 PC강선(30) 및 빼내기선(40)의 선단부, 또는 각각에 압착된 압착그립(32) 및 (42), 또는 커플러(43)의 선단부를 누르고, 인장재인 PC강선(30) 및 빼내기선(40)이 고정금구(2)안에서 축방향으로 이동하지않도록 고정하도록 해도 좋다.As shown in FIG. 1, the female support 20 is provided with a female screw so that the fixed base 20 is screwed into the male screw at the tip of the lower body 11. As shown in Figs. 2 to 6, the fixed support 21 has a through hole 211 in the axial direction, and defines the position of the PC steel wire 30, which is a tension member, in the radially outward direction thereof. The groove | channel 21 of the axial direction which the PC steel wire 30 which is a tension material can detach | deviate by pulling out the wire 40 is integrated. As shown in FIG. 1 and FIG. 13, the pressing member 22 is accommodated in the fixed base 20, and then the cap 23 is screwed into the fixed base 20, and the tip of the fixed base 21 is shown. Press the leading ends of the PC steel wire and the pull-out wire which are the tension members disposed in the. As shown in Fig. 9, the pressing member 22 includes a PC steel wire 30 and a pullout wire 40, and a crimping grip 32 and 42 or a coupler 43 that are crimped to each other. (2) A disc-shaped fixing portion that abuts against the distal end of the PC steel wire and the pullout wire as a tension member, or contacts the distal end of the crimping grips 32 and 42 or the coupler 43 by fixing so as not to move in the axial direction. 221 and the leg part 222 which abuts on the bottom part of the cap 23. In addition, the pressing member 22 is inserted into the cap 23 to be integrated, and the pressing member 22 is crimped to the front end portions of the PC steel wire 30 and the pull-out wire 40, or the crimping grip 32, respectively. And (42) or the tip of the coupler 43 may be pressed to fix the PC steel wire 30 and the pullout wire 40, which are tension members, so as not to move in the axial direction in the fixing tool 2.

제11, 12도에 나타내듯이, 인장재인 PC강선(30)의 각각의 선단부에 압착그립(32)을 압착한다. 똑같이, 제12도에 나타내듯이, 제거시에 긴장력을 부여해서 빼내기 위한 빼내기용의 PC강선(40)이 선단부에 압착그립(42)을 압착하고, 선단에 압괴 가능한 또는 눌러 찌부려뜨리기 가능한 스토퍼(431)를 형성한 커플러(43)를 이 압착그립(42)에 피착한다.As shown in FIGS. 11 and 12, the crimping grips 32 are crimped to the respective tips of the PC steel wires 30, which are tension members. Similarly, as shown in FIG. 12, a PC steel wire 40 for pulling out to apply a tension force at the time of removal, presses the crimping grip 42 at the distal end, and can be squeezed or pressed at the distal end. A coupler 43 having the 431 formed thereon is attached to the crimping grip 42.

제4도에 나타내듯이, 고정받침대(21)에 빼내기용의 PC강선(40)의 선단부에 압착그립(42)을 압착하고, 선단에 압괴가능한 또는 눌러 찌부려뜨리기 가능한 스토퍼(431)를 형성한 커플러(43)를 이 압착그립에 피착한 빼내기용의 PC강선(40)을 중심으로 그 둘레에, 선단에 압착그립(32)을 압착한, 인장재인 PC강선(30)을 배치한 섬유다발을 삽입해서, 스토퍼(431)에 PC강선스토퍼(431)에 PC강선(30)의 압착그립(32)을 당접시킴과 아울러 압착그립(32)의 후단을 고정받침대(21)의 전단에 계지함과 아울러 고정받침대(21)의 홈(212)에 PC강선(30)을 끼워서, PC강선(30)을 계지한다. 커플러(43)의 후단에는 테이퍼부(432)가 형성되고, 최종적으로 인장재(30)를 제거할 때에, 빼내기선(40)을 보다 작은 견인력에 의해 빼낼 수 있다. 다음에, 제13, 14도에 나타내듯이, 고정받침대받이(20)의 일단에서, 빼내기용의 PC강선(40)을 중심으로 해서, 그 둘레에 PC강선(30)을 배치한 선다발을 삽입하고, 고정받침대(21)를 고정받침대받이(20)안에 삽입, 고정한다. 내하체(11)의 일단에서 빼내기용의 PC강선(40)을 중심으로 해서, 그 둘레에 PC강선(30)을 삽입하여 고정받침대받이(20)의 후단을 내하체(11)의 전단에 나합해서 고착하고, 누름면(221)이 빼내기선(40) 및 PC강선(30)의 각각의 전단부를 압압하도록 고정받침대받이(20)안에 누름부재(22)를 삽입하고, 다음에 누름부재(22)의 다리부(222)를 압압하도록 캡(23)을 고정받침대받이(20)의 전단에 나합해서 고착한다. 이렇게 해서, PC강선(30) 및 빼내기용의 PC강선(40)을 고정금구(20)에 고정함과 함께 내하체(11)의 전단에 고정받침대받이(20)의 후단을 나합하고, 내하체(11)에 스페이서(12)가 부착되고, 인장재인 PC강선(30) 및 빼내기선(40)을 최종적으로 제거할 수 있는 제거식 앵커보디(10)가 조립된다.As shown in FIG. 4, the crimping grip 42 is squeezed to the distal end of the PC steel wire 40 for removal to the fixed support 21, and a stopper 431 capable of being squeezed or pressed against the distal end is formed. A fiber bundle having a PC steel wire 30, which is a tension member, is formed by compressing the crimping grip 32 at its tip around the PC steel wire 40 for pulling out the coupler 43 attached to this crimp grip. Inserting the abutment grip 32 of the PC steel wire 30 into the stopper 431 and the PC steel wire stopper 431, and engaging the rear end of the crimping grip 32 at the front end of the fixed base 21; In addition, the PC steel wire 30 is inserted into the groove 212 of the fixed base 21 to lock the PC steel wire 30. A taper portion 432 is formed at the rear end of the coupler 43, and when the tension member 30 is finally removed, the lead wire 40 can be pulled out by a smaller pulling force. Next, as shown in FIGS. 13 and 14, at one end of the fixed base 20, a bundle of wires having the PC steel wire 30 arranged around the PC steel wire 40 for removal is inserted. Then, the fixing stand 21 is inserted and fixed in the fixing stand 20. Centering around the PC steel wire 40 for pulling out from one end of the lower body 11, the PC steel wire 30 is inserted around the lower end of the lower support body 20 at the front end of the lower body 11. The pressing member 22 is inserted into the fixing base 20 so that the pressing surface 221 presses each front end portion of the extraction line 40 and the PC steel wire 30, and then the pressing member 22 The cap 23 is screwed to the front end of the fixed base 20 so as to press the leg 222 of the). In this way, while fixing the PC steel wire 30 and the PC steel wire 40 for removal to the fixing bracket 20, the rear end of the fixing base 20 is joined to the front end of the lower body 11, and the lower body A spacer 12 is attached to 11, and a removable anchor body 10 capable of finally removing the PC steel wire 30 and the pullout wire 40, which are tension members, is assembled.

제거식 앵커공법에 대해서 설명한다.The removable anchoring method will be described.

(1) 정착조작(1) Settlement operation

땅속에 앵커구멍을 뚫음과 아울러 케이싱을 삽입한다. 한편, 상기한 제거식 앵커(A)에 시스파이프(5)를 연결하고, 앵커구멍안에 삽입한다. 다음에 내하체(11)가 매몰할 때까지 모르타르, 시멘트밀크 등의 고결재(固結材)를 주입한다. 고결재가 고결하지 않는 가운데 케이싱을 빼내면서 모르타르 또는 시멘트밀크 등의 고결재를 앵커의 고착지역에 고압주입한다. 고결재의 경화후, 긴장 잭을 배치하고, 구멍밖에 노출하는 인장재인 PC강선(30)을 긴장해서 정착한다.Drill the anchor hole in the ground and insert the casing. On the other hand, the sheath pipe 5 is connected to the above-mentioned removable anchor A and inserted in the anchor hole. Next, a mortar, cement milk, or the like is injected until the load-bearing body 11 is buried. While the freezing material is not freezing, high-pressure injection of mortar or cement milk into the anchoring area is carried out while removing the casing. After hardening of the high grain material, a tension jack is arrange | positioned and the PC steel wire 30 which is the tension material which exposes only a hole is tensioned and fixed.

(2) 인장재인 PC강선(30)의 제거조작(2) Removal operation of PC steel wire 30, which is a tension member

최종적으로, 앵커(A)의 사용목적을 달성한 후, 앵커머리부(60)를 제거하고, 다음에 구멍바깥에 노출한 빼내기용의 PC강선(40)을 잭에 의해 큰 힘으로 긴장해서, 빼내기용의 PC강선(40)의 선단부에 압착한 압착그립(42)에 피착한 커플러(43) 선단의 압괴가능한 또는 눌러 찌부려뜨리기 가능한 스토퍼(431)를 압괴 또는 눌러 찌부려뜨리고, 선단에 압착그립(42)을 압착한 빼내기용의 PC강선(40)을 고정받침대(21)에서 빼낸다. 그렇게 하면, 고정받침대(21)의 전단에 계지하고 있던 압착그립(32)은 계지상태가 풀어지고, PC강선은 고정받침대의 홈에서 이탈하고, 인장재인 PC강선(30)을 1개씩, 혹은 여러개 모아서 사람의 힘 또는 크레인으로 빼낸다.Finally, after achieving the purpose of use of the anchor A, the anchor head 60 is removed, and then the PC steel wire 40 for pulling out, which is exposed outside the hole, is tensioned with a large force by a jack. The squeezable or crushable stopper 431 of the tip of the coupler 43 adhering to the crimping grip 42 pressed against the distal end of the PC steel wire 40 for removal is crushed or pressed and crushed to the tip. The PC steel wire 40 for pulling out the grip 42 is removed from the fixed base 21. Then, the crimping grip 32 held at the front end of the fixed base 21 is released, the PC steel wire is released from the groove of the fixed base, and one or several PC steel wires 30, which are tension members, are released. Collect them and pull them out with human power or a crane.

종래의 제거식 앵커에서는, PC강선을 1개씩 잭으로 빼내므로, 빼내기작업에 많은 시간을 요하지만, 본 발명의 고정금구 및 그것을 이용한 제거식 앵커에 의하면, 앵커의 사용목적을 달성한 후, 앵커머리부를 제거하고, 다음에 구멍바깥쪽에 노출한 빼내기선을 잭에 의해 큰 힘으로 긴장해서, 빼내기선의 커플러선단의 스토퍼를 압괴 또는 눌러 찌부려뜨려 압착그립을 압착한 인장재의 사이에서 빼내기선을 고정받침대로부터 빼냄으로써, 고정받침대의 전단에 계지하고 있던 압착그립은 계지상태가 풀어지고, PC강선은 고정받침대의 홈에서 이탈하므로, 인장재인 PC강선은 1개씩, 혹은 여러개 모아서 사람의 힘 또는 크레인으로 쉽게 빼낼 수 있고, 또한 빼내기작업시간을 현저히 단축할 수 있다.In the conventional removable anchor, the PC steel wire is pulled out one by one, so it takes a lot of time to take out the work. According to the fixing bracket of the present invention and the removable anchor using the same, after the purpose of using the anchor is achieved, the anchor The head is removed, and then the pull wire exposed to the outside of the hole is tightened with a large force by the jack. By pulling out from the base, the crimping grip held at the front of the fixed base is released and the PC steel wire is released from the groove of the fixed base. Therefore, the PC steel wires, which are tension members, can be collected one by one or several by human force or crane. It can be taken out easily, and the extraction work time can be shortened significantly.

Claims

A wire bundle consisting of a pullout wire having a crimp grip crimped to the tip, and a PC steel wire which is a tension member pressed against the tip with a crimp grip disposed around the center of the crimp grip crimped to the tip of the pullout wire; A line bundle is inserted, and a fixed support provided with a predetermined distance between the wall of the through hole and a groove provided through the wall of the through hole, which defines the position of the PC steel wire which is a tension member, and which is detachable by the extraction of the line. And pressing and holding each of the end portions of the PC steel wire, which is a holding member fixed at the center, and a pull-out base disposed at the center, and a tension member disposed around the fixed support base fixed to the inner body. It consists of a fixing member fixed to a fixed support base, the center of the pressing grip of the extraction line by the fixing support and the fixing member. By placing the crimping grip of the PC steel wire which is a tension material around it, the rear end of the crimping grip of the PC steel wire which is a tension material is held on the front end face of the fixing base and the PC wire is Fixing bracket of PC steel wire, which is a tension member, characterized in that made according to the above-mentioned groove of the fixing base.

It consists of a pull-out wire with a crimping grip on the tip and a coupler having a stopper part on the tip, and a PC steel wire which is a tension member that crimps the crimping grip on the tip. A line bundle formed by arranging the crimping grip of the PC steel as a tension member, and making the crimping grip be intimately contacted with the stopper portion of the coupler; At the same time, the fixing butt which installs the groove which can be separated by the extraction of the drawing line at predetermined intervals on the wall surface of the through hole, and the line bundle are inserted, and the fixing butt is stored and fixed. Pressing the end portion of the PC steel wire which is a holding member and the above-mentioned extraction line disposed in the center and the tension member disposed around the fixed support base fixed to the The crimping grip of the PC steel wire which is composed of a fixing member fixed to the fixing support base and is a tension member around the coupler of the extraction line by the fixing support and the fixing member. And arranging the rear end of the crimping grip of the PC steel wire, which is a tension member, on the front end surface of the fixed support base, and regulating the PC steel wire according to the groove of the fixed support base. Fixing bracket of PC steel wire, which is a tension member.

The above-mentioned bundle includes a wire bundle made of a pulled wire compressed by a crimping grip on the tip and a PC steel wire which is a crimping grip on the tip disposed around the center of the crimped grip crimped on the tip of the pull-out wire. It consists of a lower body into which the foot is inserted, and the above-mentioned bundle bundle is inserted and fixed, and the fixed bracket fixed to the said lower body, wherein the fixing bracket is inserted into the wire bundle and the position of the PC steel wire which is a tension member. In addition to the above, the fixing butt which installs the groove which can be separated by the extraction of the drawing line at predetermined intervals on the wall surface of the through hole, and the line bundle are inserted, and the fixing butt is received and fixed. While pressing each end of the fixed support base fixed to the load bearing body, the above-mentioned extraction line disposed at the center and the above-mentioned PC steel wire which is a tension member disposed around the same. The crimping grip of said PC steel wire, which is composed of a fixing member fixed to a fixed fixing support, and is a tension member around the crimping grip of the extracting line by the fixing support and the fixing member. And arranging the rear end of the crimping grip of the PC steel wire, which is a tension member, on the front end surface of the fixed support base, and regulating the PC steel wire according to the groove of the fixed support base. Removable anchor.

It consists of a pull-out wire with a crimping grip on the tip and a coupler having a stopper part on the tip, and a PC steel wire which is a tension member that crimps the crimping grip on the tip. A ship bundle formed by arranging the crimping grip of a PC steel wire, which is a tension member, and abutting the crimping grip on the stopper portion of the coupler, a lower body into which the ship bundle is inserted, and the ship bundle And a fixed bracket fixed to and fixed to the inner body, wherein the fixed bracket is inserted by the above-described wire bundle and defines the position of the PC steel wire which is a tension member and by removing the above-mentioned extraction line. A fixed support base having a detachable groove provided on the wall surface of the through hole at predetermined intervals, and the above-mentioned bundle bundle are inserted to store and fix the fixed support base. And a holding member fixed to the bearing body and pressing the tip of the PC steel wire, which is the pullout line disposed at the center and the tension member disposed around the holding plate, and fixed to the fixing stand. The said crimping grip of said PC steel wire which is a tension material is arrange | positioned around the said coupler of the said extraction line by the said fixing base and the said fixing member, The said of said PC steel wire which is a tension material is arrange | positioned And a rear end portion of the crimping grip is connected to the front end surface of the fixed support, and the PC steel wire is regulated according to the groove of the fixed support.