KR100494011B1 - anchor for elimination equipment of tension member - Google Patents

anchor for elimination equipment of tension member Download PDF

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Publication number
KR100494011B1
KR100494011B1 KR10-2002-0049583A KR20020049583A KR100494011B1 KR 100494011 B1 KR100494011 B1 KR 100494011B1 KR 20020049583 A KR20020049583 A KR 20020049583A KR 100494011 B1 KR100494011 B1 KR 100494011B1
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South Korea
Prior art keywords
wedge
tension member
anchor
anchor head
installation space
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KR10-2002-0049583A
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Korean (ko)
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KR20030061284A (en
Inventor
신종덕
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신종덕
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Application filed by 신종덕 filed Critical 신종덕
Priority to KR10-2002-0049583A priority Critical patent/KR100494011B1/en
Priority to PCT/KR2002/002448 priority patent/WO2004005627A1/en
Priority to AU2002359987A priority patent/AU2002359987A1/en
Priority to JP2004519316A priority patent/JP3894936B2/en
Priority to CN02812249.6A priority patent/CN1246554C/en
Priority to US10/493,681 priority patent/US7823344B2/en
Publication of KR20030061284A publication Critical patent/KR20030061284A/en
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Publication of KR100494011B1 publication Critical patent/KR100494011B1/en

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/76—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor
    • E02D5/765—Anchorings for bulkheads or sections thereof in as much as specially adapted therefor removable
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/08—Members specially adapted to be used in prestressed constructions
    • E04C5/12—Anchoring devices
    • E04C5/122—Anchoring devices the tensile members are anchored by wedge-action
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/30—Miscellaneous comprising anchoring details

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

본 발명은 토목공사에서 연약지반 보강을 위한 앵커공법에 사용되는 인장부재 해체장치용 앵커에 관한 것으로서, 그 목적은 웨지 상부의 지지부재를 캡형 단면으로 형성함으로써 캡의 높이만큼 인장부재의 끝단부분을 수용하며, 이로 인하여 인장부재의 양쪽끝단을 안정적이고도 확실하게 파지할 수 있고 지지부재의 강도 또한 보강할 수 있도록 한 것이다.The present invention relates to an anchor for a tension member dismantling device used in the anchoring method for reinforcing soft ground in civil engineering, the object of which is to form the end of the tension member by the height of the cap by forming the support member of the upper wedge cap shape This allows to securely and reliably grip both ends of the tension member and to reinforce the strength of the support member.

본 발명은 상하로 개구되며 적어도 상단에 경사진 내면의 웨지설치공간(21)을 갖는 앵커헤드(20), 이 앵커헤드(20)의 웨지설치공간(21)에 안치되도록 설치되며 중앙에 하나의 원을 이루어 인장부재(10)가 삽입될 수 있는 제1홀(32)을 갖도록 3개의 웨지(31)가 하나의 콘형을 이루고 상기 제1홀(32) 상부의 환형 링(33)에 끼워진 지지부재를 중심으로 하여 외면의 오-링(35)이 3개의 웨지(31)들을 확장시키도록 마련된 웨지유닛(30), 이 웨지유닛(30)의 상단에 씌워져 웨지유닛(30)의 원활한 동작을 확보하는 압축커버(42), 이 압축커버(42)와 웨지(31)를 앵커헤드(20)의 웨지설치공간(21)으로 항시 밀어 넣는 힘을 부여하는 스프링(40), 이 스프링(40)이 탄력을 갖도록 앵커헤드(20)의 상단에 씌워진 상태로 체결되는 웨지커버(50)로 구성되는 인장부재 해체장치용 앵커에 있어서, 상기 지지부재가 인장부재(10)의 끝단부분을 수용하면서 웨지(31)가 인장부재(10)를 파지하였을 때 파지되지 않은 인장부재(10)의 끝단부분이 방사상으로 확장되어 보다 확실하게 파지되는 캡형 단면의 지지부재(34a)로 형성된 것을 특징으로 한다.The present invention is installed so as to be settled in the anchor head 20, the wedge installation space 21 of the anchor head 20, which has an upper and lower opening and at least an inclined inner surface of the wedge installation space 21. Three wedges 31 form a cone shape and have a first hole 32 into which the tension member 10 can be inserted in a circle, and is supported by the annular ring 33 on the upper portion of the first hole 32. O-ring 35 on the outer surface of the member is formed to extend the three wedges 31, the wedge unit 30 is covered on the upper end of the wedge unit 30 to facilitate the smooth operation of the wedge unit 30. Compression cover 42 to secure, this compression cover 42 and the wedge 31, the spring 40 to give the force to always push the wedge installation space 21 of the anchor head 20, this spring 40 In the anchor for the tension member disassembly device consisting of a wedge cover 50 is fastened in a state covered on the top of the anchor head 20 to have this elasticity, When the wedge 31 grips the tension member 10 while the supporting member accommodates the end portion of the tension member 10, the end portion of the tension member 10, which is not gripped, extends radially and is more reliably gripped. It is characterized in that formed by the support member 34a of the cap-shaped cross section.

Description

인장부재 해체장치용 앵커{anchor for elimination equipment of tension member}Anchor for elimination equipment of tension member

본 발명은 토목공사에서 연약 지반 보강을 위한 앵커공법에 사용되는 인장부재의 해체장치에 관한 것으로서, 보다 상세하게는, 인장부재의 양쪽끝단을 안정적으로 파지할 수 있고 지지부재의 강도 또한 보강할 수 있는 인장부재 해체장치용 앵커에 관한 것이다.The present invention relates to a device for dismantling a tension member used in the anchoring method for reinforcing soft ground in civil engineering, and more specifically, it is possible to stably hold both ends of the tension member and to reinforce the strength of the support member. The present invention relates to an anchor for a tension member disassembly device.

앵커공법은 흙막이 공사, 터널갱구부 안정용, 석축 및 옹벽 보강용 등 토목공사에서 주로 사용되어지는 공법이며, 이 공법은 천공하고자하는 위치의 지반에 천공기를 이용하여 천공하고 이 구멍에 그라우트호스와 인장부재로 구성된 내하체를 삽입한 다음, 그라우트호스를 통해 그라우트를 주입하고 주입된 그라우트가 내하체와 양생되면 인장부재의 다른 한쪽끝단에 앵커를 체결한 후 인장부재를 인장기로 당겨 그라우트와 지면을 인장 함으로써 연약한 지면을 보강하는 공법이다.Anchor construction is mainly used in civil engineering works such as earthquake construction, stabilization of tunnel shafts, reinforcement of stone and retaining walls, and this construction uses perforation in the ground of the location to be drilled and grout hose and tension in this hole. After inserting the inner body consisting of the member, injecting grout through the grout hose, and when the injected grout is cured with the lower body, the anchor is fastened to the other end of the tension member and the tension member is pulled by the tensioner to tension the grout and the ground. By reinforcing the soft ground.

이러한 앵커공법의 적용은 도심지공사에서 효과적인 시공관리 및 공기단축 등의 장점이 있으나 인접지대에 대한 추후공사시 일반철근의 강도에 비해 단면적상 강도가 약6배인 인장부재의 가설로 인해 굴착장비 및 천공장비의 손실과 공기지연이 발생하였다. 이러한 문제점을 해소하기 위하여 굴착공사 완료 후 건축공정에 맞추어 인장부재를 제거할 수 있는 앵커가 개발되어 사용되었고 이것이 앵커공법용 인장부재 해체장치이다.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.

이러한 앵커공법용 인장부재 해체장치는 무수히 많은 것들이 제안되어 있으나, 이들 중 대한민국 등록실용신안공보 등록번호 20-0242474호에는 웨지좌와 캡 체결용 나사가 형성된 본체와, 외면의 링홈에 끼운 외부링에 의해 조합상태를 유지하고 내부의 링홈에 장착된 내부링에 의해 벌어지는 방향으로 쏠리며 내부 링홈의 앞쪽에 형성된 막이홈에 막이를 끼우도록 된 웨지조립체와, 이 웨지조립체의 막이홈에 탄성후크의 막이를 안장시킨 잠금쇠와, 상기 후크가 삽입되어 잠가지는 걸림턱을 가진 캡으로 이루어진 것이다.The anchor member dismantling device for the anchoring method has been proposed a myriad, but among them, Korean Utility Model Registration No. 20-0242474 by the main body is formed with a wedge seat and a cap fastening screw, and an outer ring fitted to the ring groove of the outer surface The wedge assembly is maintained in a combined state and is oriented in the direction of the inner ring mounted in the inner ring groove, and the membrane groove formed in the front of the inner ring groove is inserted into the membrane groove. It consists of a cap having a saddle and a locking jaw that the hook is inserted and locked.

상기와 같이 구성된 앵커해체장치를 이용하여 인장부재를 해체하는 방법은, 지중에 긴장된 상태로 설치되어 있는 인장부재를 절단한 후 절단된 인장부재의 끝단을 망치 따위로 쳐서 매립 설치된 인장부재의 선단방향으로 이동시키면 인장부재에 웨지조립체가 밀려들어가면서 모든 웨지가 벌어져서 인장부재의 선단에 대한 웨지물림이 해제되고, 일단 물러 선 웨지조립체는 그대로 캡의 걸림턱에 걸려 있으므로 이후에 인장부재를 잡아당기더라도 딸려 나오지 않는 것이었다.The method for dismantling a tension member by using the anchor dismantling device configured as described above is to cut the tension member installed in a tense state in the ground, and then hit the end of the cut tension member by hammering the end of the tension member installed in the embedded direction. When the wedge assembly is pushed into the tension member, all the wedges are opened to release the wedge bite to the tip of the tension member. It was not coming out.

그러나 상기와 같은 실용등록공보의 앵커해체장치에 있어서는, 웨지조립체에 인장부재를 조립하여 운반하거나 작업시 부주의로 인해 외부 충격이 가해져 인장부재가 삽입되어 웨지조립체의 상단에 체결된 잠금쇠가 캡의 걸림턱으로 잠길 수 있으며, 이렇게 잠금쇠가 캡에 잠기면 해제가 불가능하므로 웨지조립체의 모든 웨지가 벌어진 상태여서 재사용이 불가능하다는 문제점이 있었다.However, in the anchor disassembly device of the above practical registered publication, the clamping member fastened to the upper end of the wedge assembly by the tension member is inserted into the wedge assembly when the tension member is assembled and transported or inadvertently applied to the wedge assembly. It can be locked to the jaw, this is because the clamp is locked in the cap is impossible to release because there is a problem that all the wedges of the wedge assembly is open and can not be reused.

특히, 인장부재를 타격할 때 웨지조립체가 밀려들어가서 캡의 걸림턱에 걸리도록 단 한번의 큰 힘으로 타격하여야 하고 자칫 부주의로 인하여 빗나가면 안전사고가 발생될 수 있다는 문제점이 있었다.In particular, when the wedge assembly is pushed when hitting the tension member to be hit by a single large force to be caught on the locking jaw of the cap, there was a problem that a safety accident may occur if missed due to carelessness.

그리고, 상기 웨지조립체의 웨지가 인장부재의 양쪽끝단을 파지하는 길이가 짧아 고정력이 약하고 이와 같이 고정력이 약한 단점을 해소하기 위해서는 웨지의 길이가 길어져야 하므로 웨지조립체의 전체 길어진다는 문제점이 있었다.In addition, the wedge of the wedge assembly has a problem in that the length of the wedge assembly is long because the length of the wedge gripping both ends of the tension member is short, so that the fixing force is weak and the fixing force is weak.

본 발명의 목적은 상기한 바와 같은 종래의 문제점을 해결하기 위하여 연구 개발한 것으로서, 웨지 상부의 지지부재를 캡형 단면으로 형성함으로써 캡의 높이만큼 인장부재의 끝단부분을 수용하며, 이로 인하여 인장부재의 양쪽끝단을 안정적이고도 확실하게 파지할 수 있고 지지부재의 강도 또한 보강할 수 있도록 한 인장부재 해체장치용 앵커를 제공하는데 있다.An object of the present invention has been researched and developed in order to solve the conventional problems as described above, by receiving the end of the tension member by the height of the cap by forming a support member on the top of the wedge cap-shaped cross section, thereby The present invention provides an anchor for a tension member disassembly device that can grip both ends stably and reliably and also reinforce the strength of a support member.

상기한 목적을 달성하기 위하여 본 발명은 상하로 개구되며 적어도 상단에 경사진 내면의 웨지설치공간을 갖는 앵커헤드, 이 앵커헤드의 웨지설치공간에 안치되도록 설치되며 중앙에 하나의 원을 이루어 인장부재가 삽입될 수 있는 제1홀을 갖도록 3개의 웨지가 하나의 콘형을 이루고 상기 제1홀 상부의 환형 링에 끼워진 지지부재를 중심으로 하여 외면의 오-링이 3개의 웨지들을 확장시키도록 마련된 웨지유닛, 이 웨지유닛의 상단에 씌워져 웨지들의 원활한 동작을 확보하는 압축커버, 이 압축커버와 웨지를 앵커헤드의 웨지설치공간으로 항시 밀어 넣는 힘을 부여하는 스프링, 이 스프링이 탄력을 갖도록 앵커헤드의 상단에 씌워진 상태로 체결되는 웨지커버로 구성되는 인장부재 해체장치용 앵커에 있어서, 상기 지지부재가 인장부재의 끝단부분을 수용하면서 웨지가 인장부재를 파지하였을 때 파지되지 않은 인장부재의 끝단부분이 방사상으로 확장되어 보다 확실하게 파지되는 캡형 단면으로 형성된 것을 특징으로 한다.In order to achieve the above object, the present invention is an anchor head having a wedge installation space of the inner surface inclined at the top and at least opened, and is installed to be settled in the wedge installation space of the anchor head and a tension member by forming a circle in the center thereof. The wedge is provided so that the three wedges form one cone shape and the o-ring on the outer surface extends the three wedges around the support member fitted to the annular ring on the upper side of the first hole so that the first hole can be inserted therein. Unit, a compression cover that covers the top of the wedge unit to ensure smooth movement of the wedges, a spring that forces the compression cover and wedges into the wedge installation space of the anchor head at all times, and the spring of the anchor head so that the spring is elastic. In the anchor for the tension member disassembly device consisting of a wedge cover fastened in a state covered on the top, the support member is the end of the tension member When receiving the wedge gripping the tension member while receiving is characterized in that the end portion of the non-gripping tension member is formed in a cap-shaped cross-section that is extended radially more securely.

이하, 본 발명의 인장부재 해체장치용 앵커를 첨부도면에 의거하여 상세하게 설명하기로 한다.Hereinafter, the anchor for the tension member dismantling apparatus of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 바람직한 실시 예에 따른 앵커가 적용된 앵커공법용 인장부재 해체장치를 나타낸 조립 단면도이며, 도 2는 도 1에서 본 발명의 요부인 앵커만을 발췌하여 나타낸 분해 사시도면이고, 도 3은 도 1에서 릴리즈를 발췌하여 나타낸 분해 사시도면이다.1 is an assembled cross-sectional view showing a tension member dismantling device for anchor method applied anchor according to a preferred embodiment of the present invention, Figure 2 is an exploded perspective view showing only the anchor that is the main part of the present invention in Figure 1, Figure 3 Is an exploded perspective view showing the release in FIG.

도면에 나타낸 바와 같이, 본 발명이 적용된 앵커공법용 인장부재 해체장치는 지중에 가설된 인장부재(10)의 한쪽끝단에 체결되는 앵커(A)와, 이 앵커(A)에 체결된 인장부재(10)의 다른 한쪽끝단부분을 절단하고 그 절단된 인장부재(10)의 한쪽끝단에 설치하여 인장부재(10)의 체결을 해제한 후 인장부재(10)를 빼내는 릴리즈(R)로 구성된다.As shown in the figure, the anchor member disassembly apparatus for applying the present invention is an anchor (A) is fastened to one end of the tension member 10 hypothesized in the ground, and a tension member (fastened to the anchor (A) ( The other end portion of 10) is cut and installed at one end of the cut tension member 10 to release the tension member 10, and then consists of a release R for removing the tension member 10.

상기 인장부재(10)는 7가닥의 와이어로 이루어진 것으로 중앙의 와이어(10a) 주위에 6가닥의 와이어(10b)가 배열되어 일정한 피치를 갖고 꼬아진 것이다. 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.

상기 앵커(A)는 앵커헤드(20)에 웨지유닛(30)을 스프링(40)에 의해 탄력적으로 지지하도록 씌워지는 웨지커버(50)로 구성되며, 상기 앵커헤드(20)는 상하로 개구되고 적어도 상단에 경사진 내면의 웨지설치공간(21)을 갖으며, 이 앵커헤드(20)의 웨지설치공간(21)에는 웨지유닛(30)이 안착 설치된다. 상기 앵커헤드(20)의 하부에는 인장부재(10)가 삽입되더라도 기밀이 유지되도록 플라스틱의 튜브(12)로 마감 처리되며, 앵커(10)의 내부로 물이 침투하는 것을 방지하는 방수효과와 이로 인한 녹 방지 역할을 하게 된다.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.

상기 웨지유닛(30)은 중앙에 하나의 원을 이루어 인장부재(10)가 삽입될 수 있는 제1홀(32)을 갖도록 3개의 웨지(31)가 하나의 콘형을 이루고 상기 제1홀(32) 상부의 환형 링(33)에 끼워진 캡형 단면의 지지부재(34a)를 중심으로 하여 외면의 오-링(35)이 3개의 웨지(31)들을 확장시키도록 마련된다. 상기 웨지유닛(30)의 제1홀(32) 내면에는 나선형 또는 톱니형의 요철이 형성되어있어 인장부재(10)를 인장시킬 때 웨지유닛(30)에서 인장부재(10)가 미끄러지거나 이탈됨을 방지하는 역할을 한다. 상기 지지부재(34a)를 캡형 단면으로 형성하는 이유는 인장부재(10)의 끝단이 웨지(31)를 통과하여 캡형의 지지부재(34a)내에 좀더 밀어 넣을 수 있도록 하기 위함이며, 이렇게 인장부재(10)가 웨지(31)들을 통과하여 삽입된 상태에서 견인하여 인장시키면, 도 4c와 같이 웨지(31)를 통과하여 파지되지 않은 인장부재(10)의 끝단부분이 방사상으로 확장되게 되므로 웨지(31)가 인장부재(10)를 안정적이고도 확실하게 파지할 수 있는 것이다.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 outer surface of the o-ring 35 is provided so as to extend the three wedges 31 around the support member 34a of the cap-shaped cross section fitted to the annular ring 33 at the top. The inner surface of the first hole 32 of the wedge unit 30 is formed with a spiral or serrated irregularities so that when the tension member 10 is tensioned, the tension member 10 slips or slips off the wedge unit 30. It serves to prevent. The reason why the support member 34a is formed in the cap-shaped cross section is to allow the end of the tension member 10 to be pushed further into the cap support member 34a by passing through the wedge 31. When the tow is pulled and tensioned while being inserted through the wedges 31, the end portions of the tension members 10 that are not gripped through the wedges 31 extend radially as shown in FIG. ) Can hold the tension member 10 stably and reliably.

상기 웨지유닛(30)의 상단에는 각각의 웨지(31)들이 원활한 동작을 확보하도록 하는 압축커버(42)가 씌워지고, 이 압축커버(42)와 웨지유닛(30)을 앵커헤드 (20)의 웨지설치공간(21)으로 항시 밀어 넣으려는 힘을 부여하는 스프링(40)이 설치되며, 상기 스프링(40)이 탄력을 갖도록 앵커헤드(20)의 상단에 씌워진 상태로 웨지커버(50)가 체결된다.The top of the wedge unit 30 is covered with a compression cover 42 to ensure that each of the wedges 31 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.

상기 릴리즈(R)는 7가닥의 와이어(10a,10b)가 일정피치로 꼬아진 인장부재 (10)를 수용하는 제2홀(61)이 형성되고 상단에 수나사(62)가 형성된 긴 파이프형상의 릴리즈헤드(60)로 마련되며, 이 릴리즈헤드(60) 상단의 수나사(62)에는 릴리즈헤드(60)와 마찬가지로 인장부재(10)를 수용하는 제3홀(71) 하단의 암나사(72)에 의해 체결되는 릴리즈커버(70)가 마련된다. 상기 릴리즈커버(70)의 제3홀(71) 내면에는 인장부재(10)의 서로 인접한 2개 이상의 와이어(10b)가 걸리도록 걸림턱(73)이 형성되고 상기 릴리즈헤드(60)의 선단부분에는 인장부재(10)를 선택적으로 고정시킬 수 있는 고정볼트(64)가 체결되어 있다.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.

상기 릴리즈헤드(60)와 릴리즈커버(70)는 수나사(62)와 암나사(72)에 의해 체결되는 것으로 도시하고 설명하였으나 하나로 일체화시켜서 제작하여도 무방함은 물론이다.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.

상기 걸림턱(73)은 인장부재(10)를 이루는 와이어(10a,10b)의 배열에 따라 1개의 와이어만이 걸리도록 형성하거나 그 이상의 와이어가 걸리는 형상으로 다양하게 변화시킬 수 있다.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.

상기와 같이 구성된 본 발명의 앵커가 구비된 앵커공법용 인장부재 해체장치를 참고로 하여 인장부재의 해체하는 과정에 대하여 상세하게 설명한다.With reference to the tension member dismantling device for anchor method with an anchor of the present invention configured as described above will be described in detail the process of dismantling the tension member.

먼저, 도 1 및 도 4a와 같이 인장부재(10)의 한쪽끝단에 앵커(A)의 웨지유닛(30)을 체결하되, 상기 웨지유닛(30)의 지지부재(34a)내에 인장부재(10)끝단의 와이어(10a,10b)전체가 닿은 상태로 삽입 설치되어야 한다. 이렇게 인장부재(10)의 한쪽끝단에 앵커(A)를 설치하고 그라우트호스와 인장부재로 구성된 내하체를 마련하여 천공기에 의해 천공된 지중의 구멍으로 삽입한 다음, 그라우트호스를 통해 그 라우트를 주입하고 주입된 그라우트가 내하체와 양생되면 상기 인장부재(10)의 다른 한쪽끝단 또한 앵커(A)를 체결한 후 인장부재(10)를 인장기로 당겨 그라우트와 지면은 물론 인장부재(10)에 인장력이 작용하도록 시공 설치된 상태이다.First, as shown in FIGS. 1 and 4A, the wedge unit 30 of the anchor A is fastened to one end of the tension member 10, but the tension member 10 is supported in the support member 34a of the wedge unit 30. The wires 10a and 10b at the ends should be inserted and installed. Anchor (A) is installed at one end of the tension member 10 and a load body consisting of a grout hose and a tension member is inserted and inserted into a hole in the ground drilled by a punching machine, and then the grout is injected through the grout hose. When the injected grout is cured with the lower body, the other end of the tension member 10 also fastens the anchor A, and then pulls the tension member 10 with the tensioner to pull the grout and the ground as well as the tension member 10. It is in the installed state to work.

이와 같이 인장부재(10)가 견인되어 인장력이 작용하면, 앵커헤드(20)의 웨지설치공간(21)에 설치된 웨지유닛(30)의 웨지(31)들을 통과하는 인장부재(10)의 끝단부분을 상기 웨지(31)가 더욱 견고하게 파지하므로 웨지(31)를 통과한 인장부재(10)의 끝단부분이 지지부재(34a)의 내면이 허용하는 범위 내에서 방사상으로 확장되게 되고, 이렇게 인장부재(10)의 끝단부분이 확장됨으로 인하여 단턱이 형성된 것처럼 걸려 웨지(31)가 인장부재(10)를 안정적이고도 확실하게 파지할 수 있는 것이다.When the tension member 10 is pulled as described above and the tensile force acts, the end portion of the tension member 10 passing through the wedges 31 of the wedge unit 30 installed in the wedge installation space 21 of the anchor head 20. Since the wedge 31 is gripped more firmly, the end portion of the tension member 10 passing through the wedge 31 is extended radially within the range allowed by the inner surface of the support member 34a. Due to the expansion of the end of the (10), the wedge 31 is caught as if the step is formed, and the wedge 31 can hold the tension member 10 stably and reliably.

이러한 상태에서 외부로 인출된 부분의 인장부재(10)를 절단하게되면 인장부재(10)에 가해졌던 인장력이 해제된 상태로 유지되게 된다.이러한 상태에서 절단된 인장부재(10)의 끝단에 릴리즈(R)의 릴리즈헤드(60)에 형성된 제2홀(61)을 통해 씌우면 인장부재(10)의 끝단은 릴리즈헤드(60)의 제2홀(61)을 통과하여 릴리즈커버(70)의 제3홀(71)에 형성된 걸림턱(73)하단에 위치되게 된다. 이때, 도 5a 및 도 5b와 같이 릴리즈커버(70)의 제3홀(71) 내면에 형성된 걸림턱(73)이 인장부재(10)를 이루는 서로 인접한 2개의 와이어(10b)위에 놓인 상태이다.In this state, when the tension member 10 of the portion drawn out is cut, the tension applied to the tension member 10 is maintained in a released state. In this state, the end of the tension member 10 cut is released. When it is covered by the second hole 61 formed in the release head 60 of (R), the end of the tension member 10 passes through the second hole 61 of the release head 60 to the first of the release cover 70. The lower end of the locking step 73 formed in the three holes (71). 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.

이후에 릴리즈커버(70)의 끝단을 망치 등으로 타격하게 되면 인장부재(10)를 이루는 와이어(10a,10b)중의 서로 인접한 일부(2개)의 와이어(10b)는 도 5c와 같이 릴리즈커버(70)의 제2홀(61) 내면에 형성된 걸림턱(73)으로 인해 인장부재(10)를 이루는 일부(2개)의 와이어(10b)만이 앵커(A)쪽으로 밀리게 된다.Afterwards, when the end of the release cover 70 is hit with a hammer or the like, a portion of the wires 10b adjacent to each other (two) of the wires 10a and 10b constituting the tension member 10 is released as shown in FIG. Due to the locking step 73 formed on the inner surface of the second hole 61 of the 70, only a part (two) of the wires 10b constituting the tension member 10 are pushed toward the anchor A.

따라서, 웨지유닛(30)은 도 4b와 같이 인장부재(10)를 이루는 2개의 와이어(10b)가 밀리는 만큼 웨지유닛(30)의 지지부재(34a)를 웨지커버(50)쪽으로 밀렸다가 스프링(40)의 탄성력으로 인해 도 4a와 같이 원래위치로 복귀되게 된다.Therefore, the wedge unit 30 pushes the support member 34a 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 40) to return to the original position as shown in Figure 4a.

다시 말해서, 인장부재(10)를 이루는 2개의 와이어(10b)가 웨지유닛(30)을 순간적으로 밀었을 때 웨지유닛(30)이 밀리는 만큼 앵커헤드(20)의 웨지설치공간(21)이 허용범위 내에서 웨지유닛(30)상단외면의 오-링(35)에 의해 지지부재(34a)의 맞춤부분을 중심으로 하여 방사형으로 확장되고 이때, 인장부재(10)중 2개의 와이어(10b)를 제외한 나머지 와이어(10a,10b)가 상대적으로 인장부재(10)를 타격하는 릴리즈(R)쪽으로 밀려나게 된다.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. Within the range is radially expanded around the fitting portion of the support member 34a by the o-ring 35 of the upper outer surface of the wedge unit 30, and at this time, two wires 10b of the tension member 10 The remaining wires 10a and 10b are pushed toward the release R which hits the tension member 10 relatively.

상기 릴리즈(R)를 타격하였던 외력이 소진되면 스프링(40)의 탄성력으로 인하여 웨지유닛(30)이 앵커헤드(20)의 웨지설치공간(21)으로 밀려들어가 웨지유닛(30)의 웨지(31)들은 방사형으로 오므라들게 되고 이때 인장부재(10)의 외면은 다시 웨지유닛(30)의 웨지(31)내면에 견고하게 파지된 상태로 된다.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 firmly gripped by the inner surface of the wedge 31 of the wedge unit 30 again.

상기에서 설명한 바와 같이 릴리즈(R)의 타격을 반복하여 지중에 가설된 앵커(A) 쪽으로 인장부재(10)중 일부(2개)의 와이어(10b)를 밀어 넣음으로써 타격되지 않는 인장부재(10) 중의 와이어(10a,10b)가 상대적으로 타격반대방향으로 밀려나며 상대적으로 밀려나는 인장부재(10)의 와이어(10a,10b)가 상기 웨지유닛(30)의 지지부재(34a)로부터 웨지(31)의 끝단을 벗어나는 순간 인장부재(10)의 외경이 급격하게 작아지므로 인장부재(10)는 웨지유닛(30)의 웨지(31)로부터 물림이 해제되게 된다.As described above, the tension member 10 that is not hit by repeatedly hitting the release R by pushing the wires 10b of some (2) of the tension members 10 toward the anchor A constructed in the ground. Wires 10a and 10b of the wedge unit 30 from the support member 34a of the wedge unit 30 are pushed in a direction opposite to the impact of the wires 10a and 10b of the wedge unit 30. As soon as the outer diameter of the tension member 10 is drastically smaller at the end of the tip, the tension member 10 is released from the wedge 31 of the wedge unit 30.

즉, 웨지유닛(30)의 웨지(31)들이 오므라들더라도 인장부재(10)를 이루는 일부(2개)의 와이어(10b)는 웨지유닛(30)의 제1홀(32)직경보다 작기 때문에 체결되지 않는 것이다.That is, even if the wedges 31 of the wedge unit 30 are retracted, some (two) wires 10b constituting the tension member 10 are smaller than the diameter of the first hole 32 of the wedge unit 30. It is not fastened.

이와 같이 앵커(A)의 웨지유닛(30)으로부터 인장부재(10)가 해제되면 상기 인장부재(10)는 그 자체중량과 약간의 마찰저항만이 존재하므로 릴리즈헤드(60)의 고정볼트(64)를 죄어 고정한 후 릴리즈(R)를 잡아당김으로써 인장부재(10)를 빼내어 제거하면 되는 것이다.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), pulling the release (R) is to remove the tension member 10 to remove.

상기의 인장부재 해체방법은 인장부재(10) 전체를 절단하여 인장부재(10)를 지중에 가설된 앵커(A)로부터 빼내는 것으로 설명하였으나 인장부재(10)중 적어도 하나 이상의 일부 와이어(10b 또는 10a,10b)만을 절단하고 절단된 와이어(10a,10b)중 적어도 하나이상의 와이어(10b)를 별개의 수공구로 대고 타격하여 빼낼 수 있음은 물론이다.The above method of disassembling the tension member has been described as cutting the entire tension member 10 to pull out the tension member 10 from the anchor A installed in the ground. However, at least one or more of the tension members 10 may have at least one wire 10b or 10a. It is, of course, possible to cut out only by cutting 10b and hitting at least one or more wires 10b of the cut wires 10a and 10b with a separate hand tool.

이상에서 상술한 바와 같이, 본 발명에 따른 인장부재 해체장치용 앵커는 웨지 상부의 지지부재를 캡형 단면으로 형성함으로써 캡의 높이만큼 인장부재의 끝단부분을 수용하며, 이로 인하여 인장부재의 양쪽끝단을 안정적이고도 확실하게 파지할 수 있고 지지부재의 강도 또한 보강할 수 있는 특유의 효과가 있다.As described above, the anchor for the tension member disassembly device according to the invention accommodates the end portion of the tension member by the height of the cap by forming a support member of the upper portion of the wedge into the cap-shaped cross-section, thereby allowing both ends of the tension member There is a peculiar effect that it can stably and reliably grip and reinforce the strength of the support member.

도 1은 본 발명에 따른 앵커가 적용된 앵커공법용 인장부재 해체장치를 나타낸 조립단면도,1 is an assembled cross-sectional view showing a tension member dismantling device for anchor method applied anchor according to the present invention,

도 2는 도 1에서 본 발명의 요부인 앵커만을 발췌하여 나타낸 분해 사시도,Figure 2 is an exploded perspective view showing only the anchor of the main part of the present invention in Figure 1,

도 3은 도 1에서 릴리즈를 발췌하여 나타낸 분해 사시도,3 is an exploded perspective view showing an extract in Figure 1,

도 4a는 본 발명의 앵커에 인장부재가 고정된 상태를 나타낸 단면도,Figure 4a is a cross-sectional view showing a state in which the tension member is fixed to the anchor of the present invention,

도 4b는 도 4a에서 웨지유닛이 인장부재의 와이어에 의해 밀리는 과정을 나타낸 단면도,도 4c는 도 4a에서 인장부재가 인장되는 상태의 앵커의 지지부재 부분을 발췌하여 상세하게 나타낸 단면도,Figure 4b is a cross-sectional view showing the wedge unit is pushed by the wire of the tension member in Figure 4a, Figure 4c is a cross-sectional view showing in detail the portion of the support member of the anchor in the tension member in Figure 4a,

도 5a와 도 5c는 본 발명의 릴리즈헤드로 인장부재의 와이어를 밀어내는 과정을 나타난 도면,도 5b는 도 5a의 A-A선에 대한 단면도이다.Figures 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, Figure 5b is a cross-sectional view taken along line A-A of Figure 5a.

<도면의 주요 부분에 부호의 설명><Description of the symbols in the main part of the drawing>

10: 인장부재 10a,10b: 와이어10: tension member 10a, 10b: wire

12: 튜브 20: 앵커헤드12: tube 20: anchor head

21: 웨지설치공간 30: 웨지유닛21: wedge installation space 30: wedge unit

31: 웨지 32: 제1홀31: Wedge 32: Hole 1

33: 링형 홈 34a: 지지부재33: ring groove 34a: support member

35: 오-링 40: 스프링35: O-ring 40: spring

42: 압축커버 50: 웨지커버42: compression cover 50: wedge cover

60: 릴리즈헤드 61: 제2홀60: release head 61: second hole

62: 수나사 64: 고정볼트62: external thread 64: fixed bolt

70: 릴리즈커버 71: 제3홀70: release cover 71: third hole

72: 암나사 73: 걸림턱72: internal thread 73: jaw

Claims (1)

상하로 개구되며 적어도 상단에 경사진 내면의 웨지설치공간(21)을 갖는 앵커헤드(20), 이 앵커헤드(20)의 웨지설치공간(21)에 안치되도록 설치되며 중앙에 하나의 원을 이루어 인장부재(10)가 삽입될 수 있는 제1홀(32)을 갖도록 3개의 웨지(31)가 하나의 콘형을 이루고 상기 제1홀(32) 상부의 환형 링(33)에 끼워진 지지부재를 중심으로 하여 외면의 오-링(35)이 3개의 웨지(31)들을 확장시키도록 마련된 웨지유닛(30), 이 웨지유닛(30)의 상단에 씌워져 웨지유닛(30)의 원활한 동작을 확보하는 압축커버(42), 이 압축커버(42)와 웨지(31)를 앵커헤드(20)의 웨지설치공간(21)으로 항시 밀어 넣으려는 힘을 부여하는 스프링(40), 이 스프링(40)이 탄력을 갖도록 앵커헤드(20)의 상단에 씌워진 상태로 체결되는 웨지커버(50)로 구성되는 인장부재 해체장치용 앵커에 있어서,Anchor head 20 having a wedge installation space 21 of the inner surface inclined at the upper end and at least at the top, and is installed to be settled in the wedge installation space 21 of the anchor head 20 and forms a circle in the center. Three wedges 31 form a cone shape so as to have a first hole 32 into which the tension member 10 can be inserted, and the support member fitted to the annular ring 33 on the upper portion of the first hole 32 is centered. O-ring 35 on the outer surface of the wedge unit 30 is provided to expand the three wedges 31, the top of the wedge unit 30 is compressed to ensure the smooth operation of the wedge unit 30 A cover 42, a spring 40 which imparts a force to always push the compression cover 42 and the wedge 31 into the wedge installation space 21 of the anchor head 20, the spring 40 is elastic In the anchor for tension member disassembly device consisting of a wedge cover 50 is fastened in a state covered on the top of the anchor head 20 to have a, 상기 지지부재가 인장부재(10)의 끝단부분을 수용하면서 웨지(31)가 인장부재(10)를 파지하였을 때 파지되지 않은 인장부재(10)의 끝단부분이 방사상으로 확장되어 보다 확실하게 파지되는 캡형 단면의 지지부재(34a)로 형성된 것을 특징으로 하는 인장부재 해체장치용 앵커.When the wedge 31 grips the tension member 10 while the support member accommodates the end portion of the tension member 10, the end portion of the unstretched tension member 10 is radially expanded to be gripped more reliably. Anchor for a tension member disassembly device, characterized in that formed by the support member (34a) of the cap-shaped cross section.
KR10-2002-0049583A 2002-07-04 2002-08-21 anchor for elimination equipment of tension member KR100494011B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
KR10-2002-0049583A KR100494011B1 (en) 2002-08-21 2002-08-21 anchor for elimination equipment of tension member
PCT/KR2002/002448 WO2004005627A1 (en) 2002-07-04 2002-12-27 Apparatus and method for releasing tension members for use in anchor method
AU2002359987A AU2002359987A1 (en) 2002-07-04 2002-12-27 Apparatus and method for releasing tension members for use in anchor method
JP2004519316A JP3894936B2 (en) 2002-07-04 2002-12-27 Tensile member dismantling apparatus and method for anchor method
CN02812249.6A CN1246554C (en) 2002-07-04 2002-12-27 Equipment and method for removing antidraw hook mechanism for anchoring method
US10/493,681 US7823344B2 (en) 2002-07-04 2002-12-27 Apparatus and method for releasing tension members for use in anchor method

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KR100956606B1 (en) * 2008-11-06 2010-05-12 최정숙 Removable anchor
KR20180065681A (en) 2016-12-08 2018-06-18 주식회사 삼우기초기술 System for removing steel strand and method thereof
KR20220145204A (en) 2021-04-21 2022-10-28 김동세 Complex underground anchor with removal function

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KR100741048B1 (en) * 2006-02-13 2007-07-19 김성규 Head structure for tendon that distribute load equally

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KR20180065681A (en) 2016-12-08 2018-06-18 주식회사 삼우기초기술 System for removing steel strand and method thereof
KR20220145204A (en) 2021-04-21 2022-10-28 김동세 Complex underground anchor with removal function
KR102485680B1 (en) * 2021-04-21 2023-01-06 김동세 Complex underground anchor with removal function

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