KR20090001743U - Ground-friction-type removable ground anchor - Google Patents

Ground-friction-type removable ground anchor Download PDF

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Publication number
KR20090001743U
KR20090001743U KR2020070013786U KR20070013786U KR20090001743U KR 20090001743 U KR20090001743 U KR 20090001743U KR 2020070013786 U KR2020070013786 U KR 2020070013786U KR 20070013786 U KR20070013786 U KR 20070013786U KR 20090001743 U KR20090001743 U KR 20090001743U
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anchor
head
ground
band
hole
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KR2020070013786U
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Korean (ko)
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KR200446190Y1 (en
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김창근
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(주) 케이씨지
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D9/00Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
    • E02D9/02Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof by withdrawing
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12Consolidating by placing solidifying or pore-filling substances in the soil
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74Means for anchoring structural elements or bulkheads
    • E02D5/80Ground anchors
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2200/00Geometrical or physical properties
    • E02D2200/16Shapes
    • E02D2200/1685Shapes cylindrical
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0004Synthetics
    • E02D2300/0018Cement used as binder
    • E02D2300/0021Mortar
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0026Metals
    • E02D2300/0029Steel; Iron
    • E02D2300/0034Steel; Iron in wire form

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

본 고안은 시공시 신속히 설치가능하고, 앵커시공 후 제거가 가능한 U-턴형의 강연선과 팽창성 팩으로 구성된 앵커로서 정착지반에 팽창성 팩을 삽입 후 주입재를 압밀주입하여 통상의 마찰형 앵커보다 큰 정착용 구조를 형성시켜 앵커인장하중에 저항하도록 개발된 지압 마찰형 그라운드 앵커에 관한 것이다.This design is an anchor consisting of a U-turn type of stranded wire and an expandable pack that can be quickly installed during construction and can be removed after anchoring. It relates to acupressure friction type ground anchors developed to form a structure to resist anchor tension loads.

앵커체, PS강선 Anchor body, PS steel wire

Description

지압마찰형 제거식 그라운드 앵커{Ground-friction-type removable ground anchor}Ground-friction-type removable ground anchor

본 고안은 연약지반에서의 앵커 시공시 발생되는 인장력 부재와 손실을 방지하고, 간편하고도 신속히 설치가능한 지압 마찰형 제거식 앵커에 관한 것이다. The present invention is to prevent the tension member and the loss generated during the construction of the anchor in the soft ground, and to provide a pressure-resistant friction type removable anchor that can be installed easily and quickly.

본 고안은 특히 연약지반에서의 시공시 신속히 설치가능하고, 앵커시공 후 제거가 가능한 U-턴형의 강선과 팽창성 팩으로 구성된 그라운드 앵커에 관한 것으로 정착지반에 팽창성 팩을 삽입 후 주입재를 압밀주입하여 통상의 마찰형 앵커보다 큰 정착용 구조를 형성시켜 앵커인장하중에 저항하도록 개발된 지압 마찰형 앵커를 제공하기 위한 것이다.The present invention particularly relates to a ground anchor consisting of a U-turned steel wire and an expandable pack that can be quickly installed during construction on a soft ground and that can be removed after anchor construction. It is to provide an acupressure friction type anchor developed to resist anchor tension load by forming a fixing structure larger than the friction type anchor of.

종래 이 분야의 앵커의 경우, 앵커용 암반 등의 구멍 속으로 단순 밀크 주입에 의한 정착용 고결제를 형성하여 지반 또는 암반과의 마찰저항으로 인장하중이 지중에 걸리게하여 연약지반 또는 암반을 지탱해주는 그러한 형태의 것으로 특히 연약지반에서 앵커를 시공할 때에는 발생되는 인장력 부재와 손실을 방지하기 위하여 내하체의 갯수, 간격, 인장시점 등을 조절하지만, 소정의 목표로 한 결과를 얻기는 내매우 어려운 점이 있었다. In the case of the anchor of the prior art, to form a fixing high binder by simple milk injection into the hole of the rock for anchoring so that the tensile load is subjected to the ground by friction resistance with the ground or rock to support the soft ground or rock It is of this type, in particular, when the anchor is constructed in soft ground, the number of load bearing bodies, spacing, and the point of tension are controlled to prevent the loss of tensile force and loss, but it is very difficult to achieve the desired target result. there was.

또한, 도 1에서 도시되어 있는 종래의 인장재 제거식 앵커인 경우, 인발을 쉽게 하기 위해 구리스(grease)가 들어간 비결합(unbonded) PS강선을 사용하므로, 사용 후 제거해야 할 이 구리스로 인해 건축구조물 상판과 주변지반이 오염되고, 종래 이러한 형태의 앵커는 압축분산형으로 단독인장기를 사용하여야 정확한 인장이 가능하고, ㅡ자인 경우, 완전한 제거가 어려우므로, 여러가지 문제가 있었다. In addition, in the case of the conventional tension removing member anchor shown in Figure 1, because the unbonded PS steel wire containing grease (grease) to facilitate the drawing, the building structure due to this grease to be removed after use The top plate and the surrounding ground are contaminated, and this type of anchor is a compression-dispersion type of a single tensioner to be used for accurate tension, and in the case of-, it is difficult to remove completely, there were various problems.

따라서, 본 고안은 구리스가 없는 PS강선을 주로 사용하고, 압축형으로 일반 인장기를 사용가능 하며 인장 제거율 100%일 정도로 완전 제거가능하며 공장조립 완제품사용으로 시공이 신속하고 간편하도록 한 앵커를 제공하는 것을 목적으로 한다.Therefore, the present invention mainly uses PS steel wire without grease, and can use general tensioner as compression type, and it can be completely removed to 100% of tensile removal rate, and provides anchors that make construction quick and easy by using factory-assembled finished products. For the purpose of

상기 목적을 달성하기 위해 본 고안 앵커는 아울러 다음 사항을 고려하여 구성하였다.In order to achieve the above object, the subject innovation anchor was also configured in consideration of the following points.

즉, 저유동성 주입재 및 팩의 사용으로 주입재의 개량범위 외 이탈방지를 방지하고, 압밀주입으로 연약지반에 대구경의 정착구근 형성 가능하게 하며, 대구경의 정착구근 형성으로 인장력 부재와 손실방지를 도모하며 제거식 앵커로 지반환경오염 및 토지점용 관련 분쟁 해소를 고려한 것이다.In other words, the use of a low-flow injection material and a pack prevents the deviation of the injection material out of the improvement range, and enables consolidation injection to form a large diameter fixation bulb on the soft ground. It is a removal anchor that considers disputes related to soil pollution and land use.

종래의 경우 인장선이 사용된 PS강선이 지중에 남아 있게 되므로 장래 주변 의 지하공간이용시 문제 또는 타인 용지 점유시 문제가 생기므로, 이러한 문제점을 해결하기위해 본 고안의 앵커는 인장재 제거를 기본으로 한 앵커로 구성하였다.In the conventional case, since the PS steel wire in which the tension line is used remains in the ground, a problem arises when using the underground space in the future or a problem when occupying another paper, and to solve this problem, the anchor of the present invention is based on the removal of the tension material. It consists of anchors.

본 고안상의 앵커는 전술한 바와 같이 간편한 구조로서 신속한 앵커체 제조 및 시공 설치가 신속·간편하며 견고한 앵커구조에 의해 일층 건물이 높고 깊은 지중에까지 이용하기 용이하다. Anchor according to the present invention is a simple structure as described above, rapid anchor body manufacturing and construction installation is quick and easy, and a solid anchor structure is easy to use even in a high ground building.

본 고안 앵커는 U-턴 제거식 앵커의 일종으로 첨부도면에 의해 다음과 같이 구체적으로 설명한다. The present invention anchor is a kind of U-turn removable anchor will be described in detail as follows by the accompanying drawings.

본 고안상의 앵커의 몸체를 도 2(A)에 도시하였다.도 2(B)는 도 2(A)에 나타낸 앵커체의 정면도이다.The body of the anchor of the present invention is shown in Fig. 2 (A). Fig. 2 (B) is a front view of the anchor body shown in Fig. 2 (A).

본 고안의 앵커는 머리부(H)와 몸통부(B)로 구성되고, 상기 머리부(H)는 머리틀(2)과, 이 머리틀(2) 주위로 가운데 분리벽(4)과 그 양쪽으로 2줄 이상의 원주홈부(3)를 구성하며, 상기 몸통부(B)는 금속관부(5)와 이 금속관부(5) 상에서 길이방향으로 간격을 두어 2개 이상의 밴드묶음용 홈부(6)와 다수개의 통공(7)을 형성하며, 상기 머리부(H)의 원주홈부(3)에는 PS강선, 특히 PS강연선이 끼워지고 감겨져 꼬리쪽으로 직선상으로 뻗으며, 또한 머리부의 밴드묶음용 홈부(6)에는 앵커몸통부와 PS강연선묶음용 밴드가 앵커몸통과 PS강연선을 묶어주며, 상기 몸통부의 금속관부(5) 안으로는 외부로부터 물, 그라우트, 시멘트 몰탈등의 주입재가 주입되어 상기 통공(7)으로부터 압력 토출되도록 구성되어 소정의 암벽 또는 토벽의 앵커구 멍 속에서 상기 주입재가 주입되어 앵커체를 둘러싼 팩(P)이 앵커구멍 안에서 팽창 응결되도록 하고, 최종적으로 상기 PS강연선을 압력 인발하여 제거되도록 한 것을 특징으로 하는 그라운드 앵커에 관한 것이다. The anchor of the present invention is composed of a head (H) and the body (B), the head (H) is the head frame (2), the center of the separation wall (4) around the head frame and its Two or more circumferential groove portions 3 are formed on both sides, and the body portion B has two or more band bundle groove portions 6 spaced in the longitudinal direction on the metal tube portion 5 and the metal tube portion 5. And a plurality of through-holes (7), the circumferential groove portion (3) of the head (H) is fitted with PS steel wire, in particular PS stranded wire is wound and extends in a straight line toward the tail, and also the band bundle groove portion of the head ( 6) the anchor body and the PS strand wire bundle band binds the anchor body and the PS strand, and the metal tube portion 5 of the body portion is injected with an injection material such as water, grout, cement mortar from the outside (7) The injection material is configured to be discharged from the pressure in the anchor hole of a predetermined rock wall or soil wall Pack (P) surrounding the expansion keoche to condensation in the anchor holes, and will finally relates to a ground anchor, characterized in that the pressure be removed by drawing the strand PS.

도 3에서 볼 수 있는 바와 같이 본 고안 팩 앵커는 원통형으로 된 파이프 또는 튜브 등 금속관(5)에 머리부(H)를 일체로 가공하여 그 속으로 상기 금속관을 끼워 일체로 형성하거나. 또는 머리부와 금속관부를 용접으로 부착하여 앵커체(1)를 형성하거나 또는 머리부(5)와 금속관부(H)를 볼트체결로 공고히 연결하거나 하여 조립한다. 이 앵커체(1)는 도 1에서 볼 수 있는 바와 같이 2줄의 원주형 홈(3)을 형성하고 그 가운데 홈 분리벽(4)을 구비한다.As can be seen in Figure 3, the present invention pack anchor is formed by integrally processing the head (H) to the metal tube (5), such as a cylindrical pipe or tube integrally inserted into the metal tube therein. Alternatively, the head and the metal tube are attached by welding to form the anchor body 1 or the head 5 and the metal tube (H) are firmly connected by bolting or assembled. This anchor body 1 forms two rows of cylindrical grooves 3, as shown in Fig. 1, with a groove separating wall 4 therein.

또한, 상기 앵커체(1)의 금속관(5) 일측 길이방향으로 다수개의 홈부(6)(도 1에서는 2개만 나타나 있음)가 형성되고, 그 다른 일측 길이방향으로 일정간격을 두고 금속관 내에 주입된 주입재 토출용 통공(7)을 다수 형성한다.In addition, a plurality of grooves 6 (only two are shown in FIG. 1) are formed in one longitudinal direction of the metal tube 5 of the anchor body 1, and are injected into the metallic tube at regular intervals in the other one longitudinal direction thereof. A plurality of through holes 7 for discharging the injection material are formed.

도 3은 상기 앵커체(1)에 강선, 특히 PS강연선(8)을 상기 원주형 홈(3)에 각각 걸어놓은 것을 나타낸 강연선 앵커체의 조립 상태도이다.FIG. 3 is an assembled state diagram of a stranded wire anchor body showing that the steel wire, in particular, the PS stranded wire 8 is hung on the columnar groove 3, respectively.

상기 도 3에 도시되어 있는 앵커체(1)의 머리부(H)에 형성되어 있는 2줄의 원주형 홈(3)은 PS강연선이 빡빡하고도 적절히 안정적으로 끼워지고 감겨지도록 그 칫수를 맞추어 형성한다.The two rows of columnar grooves 3 formed in the head portion H of the anchor body 1 shown in FIG. 3 are formed so as to fit their dimensions so that the PS strands are tightly and properly stably fitted and wound. do.

또한 상기 다수개의 홈부(6)는 도 4에서와 같이 그 홈속으로 밴드(9)가 끼워져 PS강선이 끼워진 앵커체를 묶을 수 있도록 한 것이다. In addition, the plurality of grooves 6 is to allow the band 9 is inserted into the grooves as shown in Figure 4 to bind the anchor body fitted with the PS steel wire.

도 4는 도 3에서와 같이 강선을 상기 원주형 홈(3)에 각각 끼워 걸어 인장한 PS강선을 밴드(9)로 묶은 것을 나타낸 설명사진이다. 이렇게 PS강선을 가지런히 밴드로 묶은 앵커는 그 주위로 실선으로 표시한 바와 같이 자루, 주머니와 같은 팩(P)으로 둘러싸여진 상태로 앵커구멍 안으로 삽입하고 외부로부터 그라우트, 물, 시멘트 몰탈 등의 주입재를 상기 금속관(5) 안으로 주입한다. 즉, 외부로부터 상기주입재를 금속관(5) 내로 주입하고, 이 주입된 주입재는 고압으로 상기 금속관(5)의 표면에 형성되어있는 다수의 통공(7)을 통해 팩 안으로 압력을 걸어 토출되게 하며, 이에 따라 팩(P)이 팽창하면서 앵커구멍 안을 꽉 채우게 된다. 이들 주입재는 팩 안에서 양생되고 고결되어 앵커구멍을 메우고 강화시킨다. 즉, 앵커체에 형성된 상기 다수의 통공(7)을 통해 주입재가 압력 분출되고, PS강연선을 밴드(9)로 묶은 앵커(1)를 앵커공에 삽입한 후 외부로부터 압력을 걸어 그라우트와 시멘트몰탈을 앵커를 통하여 앵커공 속으로 압밀주입하여 암반 또는 그라운드 내에 견고한 정착구조를 형성하며, 마지막으로 PS강연선 등의 강선을 인발 제거한다. FIG. 4 is an explanatory photograph showing that the PS steel wires which are connected to and tensioned the steel wires into the cylindrical grooves 3 as shown in FIG. 3 are bundled with the band 9. Thus anchored PS steel wire in a band is inserted into the anchor hole in a state surrounded by a pack (P), such as a bag or bag, as indicated by the solid line around it, and injection material such as grout, water, cement mortar from the outside Is injected into the metal tube (5). That is, the injection material is injected into the metal pipe 5 from the outside, and the injected injection material is discharged under pressure into the pack through a plurality of through holes 7 formed on the surface of the metal pipe 5 at high pressure. As a result, the pack P expands to fill the anchor hole tightly. These injections are cured and solidified in the pack to fill and strengthen the anchor holes. In other words, the injection material is ejected through the plurality of through holes 7 formed in the anchor body, and the anchor 1, which binds the PS strands with the band 9, is inserted into the anchor hole and pressurized from the outside to grout and cement mortar. Consolidated injection into the anchor hole through the anchor to form a rigid fixing structure in the rock or ground, and finally to remove the steel wire, such as PS strands.

도 1은 종래의 제거식 앵커의 일례를 간단히 도시한 설명도이다.1 is an explanatory view showing an example of a conventional removable anchor.

도 2(A)(B)는 각각 본 고안상의 저압 마찰형 제거식 앵커몸체를 간단히 도시한 사시도 및 정면도이다.Figure 2 (A) (B) is a perspective view and a front view showing a low pressure friction type removable anchor body, respectively, according to the present invention.

도 3은 도 2의 앵커체에 인장 PC강선을 걸었을 때의 사용 상태도이다.3 is a state diagram when the tension PC steel wire is applied to the anchor of FIG.

도 4는 앵커 구멍에 삽입하기 직전에 도 3의 앵커체를 밴드로 묶어 고정한 때의 상태를 나타낸 일 실시예로서의 본 고안 앵커를 나타낸 사진이다.Figure 4 is a photograph of the present invention anchor as an embodiment showing a state when the anchoring body of Figure 3 is tied up with a band just before insertion into the anchor hole.

<주요 부호><Key sign>

1. 앵커체 1. Anchor body

2. 앵커체 머리틀2. Anchor body frame

3. 원주형 홈3. Cylindrical groove

4. 홈 분리벽 4. Groove divider

5. 금속관(pipe or tube)5. Pipe or tube

6. 밴드 묶음용 홈부6. Band Bundle Groove

7. 주입재 토출용 통공7. Through hole for discharging injection

8. PC 연강선8. PC mild steel wire

9. 밴드 9. Band

H. 머리부H. Head

Claims (1)

머리부(H)와 몸통부(B)로 구성되고, It consists of the head (H) and the body (B), 상기 머리부(H)는 머리틀(2)과, 이 머리틀(2) 주위로 가운데 분리벽(4)과 그 양쪽으로 2줄 이상의 원주홈부(3)를 구성하며,The head portion (H) comprises a head frame (2), at least two circumferential grooves (3) in the middle partition wall (4) and both sides around the head frame (2), 상기 몸통부(B)는 금속관부(5)와 이 금속관부(5) 상에서 길이 방향으로 간격을 두어 2개 이상의 밴드묶음용 홈부(6)와 다수개의 통공(7)을 형성하며,The body portion (B) forms a plurality of through holes (7) and a plurality of through holes (7) for band bundles at intervals in the longitudinal direction on the metal pipe portion (5) and the metal pipe portion (5), 상기 머리부(H)의 원주홈부(3)에는 PS강선, 특히 PS강연선이 끼워지고 감겨져 꼬리쪽으로 직선상으로 뻗으며, 또한 머리부의 밴드묶음용 홈부(6)에는 앵커몸통부와 PS강연선묶음용 밴드가 앵커몸통과 PS강연선을 묶어주며, The circumferential groove portion 3 of the head (H) is a PS steel wire, in particular, the PS strand wire is inserted and wound to extend in a straight line toward the tail, and in the band bundle groove portion 6 of the head for anchor body and PS strand wire bundle The band binds the anchor body and the PS strand, 상기 몸통부의 금속관부(5) 안으로는 외부로부터 주입재로서 물, 그라우트, 시멘트 몰탈이 주입되어 상기 통공(7)으로부터 압력 토출되도록 구성되어 소정의 암벽 또는 토벽의 앵커구멍 속에서 상기 주입재가 주입되어 앵커체를 둘러싼 팩(P)이 앵커구멍 안에서 팽창응결 되도록 하고, 최종적으로 상기 PS강연선을 압력 인발하여 제거되도록 한 것을 특징으로 하는 그라운드 앵커. Water, grout, and cement mortar are injected from the outside into the metal tube part 5 of the body part to be discharged from the through hole 7 so that the injection material is injected into the anchor hole of a predetermined rock wall or soil wall. A ground anchor characterized in that the pack (P) surrounding the expansion and condensation in the anchor hole, and finally to remove the PS strands by pressure draw.
KR2020070013786U 2007-08-21 2007-08-21 Ground-friction-type removable ground anchor KR200446190Y1 (en)

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KR102361565B1 (en) * 2021-09-07 2022-02-14 주식회사 택한 Self-reliant support for retaining wall

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KR101105477B1 (en) * 2011-03-23 2012-01-13 보림이엔씨 주식회사 Ground anchor

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JPH0743159Y2 (en) * 1992-09-07 1995-10-04 株式会社大阪防水建設社 Load-bearing body
JPH0931976A (en) * 1995-07-19 1997-02-04 V S L Japan Kk Load-resistant body of unbond removal anchor
JP3759232B2 (en) * 1996-03-25 2006-03-22 三信建設工業株式会社 Removal anchor device
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KR102361565B1 (en) * 2021-09-07 2022-02-14 주식회사 택한 Self-reliant support for retaining wall

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