KR100944460B1 - The spike expansion pack multistage with anchor using pack and the constructing method thereof - Google Patents

The spike expansion pack multistage with anchor using pack and the constructing method thereof Download PDF

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KR100944460B1
KR100944460B1 KR1020080135031A KR20080135031A KR100944460B1 KR 100944460 B1 KR100944460 B1 KR 100944460B1 KR 1020080135031 A KR1020080135031 A KR 1020080135031A KR 20080135031 A KR20080135031 A KR 20080135031A KR 100944460 B1 KR100944460 B1 KR 100944460B1
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South Korea
Prior art keywords
expansion
pack
anchor
spike
injection
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KR1020080135031A
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Korean (ko)
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박이근
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박이근
(주)지오알앤디
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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
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
    • E02D5/44—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with enlarged footing or enlargements at the bottom of the pile
    • 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
    • E02D5/22—Piles
    • E02D5/54—Piles with prefabricated supports or anchoring parts; Anchoring piles
    • 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
    • E02D5/22—Piles
    • E02D5/62—Compacting the soil at the footing or in or along a casing by forcing cement or like material through tubes
    • 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
    • E02D5/80—Ground anchors
    • E02D5/805—Ground anchors with deformable anchoring members
    • 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

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (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)
  • Architecture (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

PURPOSE: A pack anchor with multistage expansion solution which has a spike, and a construction method using the same are provided to secure anchor force by inserting a spike into an inner side of a perforated hole. CONSTITUTION: A pack anchor(100) with multistage expansion solution is composed of a first expansion pack(10a), a second expansion pack(10b), fixing packers(20), a fixing member(31), an anchor body, and injection hoses(40). The first and second expansion packs accept grout, and fix multiple spikes(11) by inner and outer fixing plates(13,14) and inner and outer stoppers(12,15). Nozzle holes(11a) are formed in the spikes in the second expansion pack, and spray the grout. The fixing packers connect and fix the first and second expansion packs. Expansion steel wires(200) are fixed to the fixing member. A protecting cap(34) is coupled to the anchor body. The injection hose injects the grout inside the first and second expansion pack. The injection hoses installed inside the second expansion pack form a pocket with an expansion agent and a steel fiber, and fastened with the pocket to form an expansion anchor.

Description

스파이크가 포함된 팽창팩이 다단형성된 팩앵커 및 이를 이용한 시공방법{The spike expansion pack multistage with anchor using pack and the constructing method thereof}{The spike expansion pack multistage with anchor using pack and the constructing method}

본 발명은 스파이크가 포함된 팽창팩이 다단형성된 팩앵커 및 이를 이용한 시공방법에 관한 것으로, 보다 상세하게는 수개의 스파이크가 부착된 팽창팩이 패커와 함께 일체가 되게 앵커체를 구성하여 팩 내부로 주입재를 주입하면 팩이 팽창되어 천공홀 내측벽을 가압함과 동시에 천공홀 내측벽으로 스파이크가 방사상으로 긴밀하게 삽입되도록 하여 연약지반 보강시 우수한 앵커력을 확보할 수 있는 스파이크가 포함된 팽창팩이 다단형성된 팩앵커 및 이를 이용한 시공방법에 관한 것이다.The present invention relates to a pack anchor having a multi-stage expansion pack containing a spike and a construction method using the same, and more specifically, to the inside of the pack by configuring the anchor body to be integrated with the packer, the expansion pack is attached to several spikes When the injection material is injected, the pack expands and presses the inner wall of the drilled hole, and at the same time, the spike is radially tightly inserted into the inner wall of the drilled hole so that the expansion pack including the spike can secure excellent anchoring force when reinforcing the soft ground. It relates to a multi-stage pack anchor and a construction method using the same.

일반적으로, 지하굴착공사, 터널공사, 사면공사, 옹벽공사 등 각종 굴착공사를 할 때에는 주위의 암반, 토사 등이 무너지는 것을 방지하기 위하여 토류판을 설치하거나 그 토류판을 지지시키도록 주위의 암반, 토사 등에 앵커를 설치하는 식의 공사를 실시하고 있다.Generally, in the case of various excavation works such as underground excavation, tunnel construction, slope construction, retaining wall construction, to prevent the collapse of surrounding rock, soil, etc., it is necessary to install earth plate or support the soil plate and soil We carry out construction to attach anchor to back.

종래에 실시되고 있는 앵커시공은 SI(Soil Improvement)앵커(또는 지반개량앵커 라고함)로서 고압분사 주입공법(JSP)를 이용하여 큰 직경(600mm~1200mm)의 정착체를 형성하고 그 내부에 앵커를 설치하여 앵커력을 확보할 수 있도록 하는 공법과 Pack 앵커로서 천공경 내에 팩이 부착된 앵커체를 삽입하고, 그 팩 내부 및 외부로 그라우트를 주입하여 앵커력을 확보하고자 하는 앵커기술이 선행되어지고 있다. Conventional anchor construction is a SI (Soil Improvement) anchor (or ground improvement anchor) using a high-pressure injection injection method (JSP) to form a large diameter (600mm ~ 1200mm) fixture and anchors therein A technique for installing anchors to secure anchoring force and a anchor anchor that inserts an anchor body with a pack into the hole diameter as a pack anchor, and injects grout into and out of the pack to secure anchoring force. ought.

상기 지반개량앵커는 큰 직경의 정착체를 형성하므로 앵커력을 확보하는 마찰저항력을 키울 수 있는 특징이 있으나, 큰 직경의 정착체 형성으로 인해 정착체 상부지반의 융기가 불가피하고, 이로 인해 주변지반 및 주변구조물에 악영향을 미치는 경우가 많다. 또한 개량체 형성비용이 매우 커서 경제성이 매우 떨어지고, 상부의 1단을 형성하고 다음 하부를 시공할 경우에 지반을 융기시키므로 상부에 기 설치된 정착체를 움직이게 하므로 앵커력의 손실이 발생하게 되는 문제점이 있으며, 또한 시공과정에서 설계된 정착체의 직경대로 시공되었는지 확인할 수 있는 방법이 없다. 그리고 지반개량앵커로 시공된 정착체 내부에 앵커체를 시공하기 위해서 추가 굴착하여 형성된 구근을 찾기가 어렵고 시공된 정착체 중앙에 앵커체를 설치하는 것이 거의 불가능하며 앵커체는 그 자중에 의해 JSP의 하부에 설치되는 경우가 대부분이어서 앵커력의 도입이 용이하지 못하다.The ground improvement anchor forms a large diameter fixture, so that it is possible to increase the frictional resistance to secure the anchor force, but due to the formation of a large diameter fixture, the elevation of the upper ground of the fixture is inevitable. And adversely affect the surrounding structure in many cases. In addition, since the cost of forming the improved body is very large, the economic efficiency is very low, and when the first stage of the upper part is formed and the next lower part is constructed, the ground is raised so that the anchoring force installed in the upper part moves, causing loss of anchor force. In addition, there is no way to confirm whether the construction is constructed according to the diameter of the fixture designed in the construction process. In addition, it is difficult to find bulbs formed by additional excavation in order to construct the anchor body in the anchorage body constructed with the ground improvement anchor, and it is almost impossible to install the anchor body in the center of the anchorage structure. In most cases, it is not easy to introduce the anchor force because it is installed in the lower part.

상기 지반개량앵커로 정착구근을 형성할 때 슬라임이 다량 발생하여 폐기물처리하여야 하는 환경문제가 있으며, 정착체 구근의 양생시간이 경화제를 쓸 경우에도 1개월정도로 길어져 공기에 매우 불리하다. 일반앵커시공시에는 경화제를 사용하면 빠르게는 1~3일 내에도 정착체가 경화되므로 앵커력 도입이 가능한 것이다.When the fixing bulb is formed with the ground improvement anchor, a large amount of slime is generated and there is an environmental problem in which waste treatment is required, and the curing time of the fixing bulb is extended to about one month even when using a curing agent, which is very disadvantageous for air. In the case of general anchor construction, the use of a hardener allows fast introduction of anchor forces since the fixture hardens within one to three days.

상기 Pack 앵커는 천공경 내에 팩이 부착된 앵커체를 삽입하고, 그 팩 내부 및 외부로 그라우트를 주입하여 앵커력을 확보하고자 하는 앵커기술로서, 지중에 있는 지하수와 팩 내부로 주입되는 그라우트가 섞이지 않아 양질의 그라우트 정착체를 형성할 수 있는 장점이 있으나, 팩표면과 지반의 경계면의 마찰저항이 작고, 팩표면에 수막이 형성되므로 시간이 경과할수록 앵커력의 저감이 발생할 수 있는 문제점이 있으며, 팩 내부를 가압할 수 없고 가압하더라도 지압력이 오히려 크고 가압력을 크게 할 경우 천공경의 상부로 압력그라우트가 배출되기 때문에 팩의 직경확대가 거의 불가능한 문제점이 있었다.The pack anchor is an anchor technology for securing anchoring force by inserting an anchor body with a pack attached to a perforator, and injecting grout into and out of the pack, and mixing ground water in the ground and grout injected into the pack. It does not have the advantage of forming a good grout fixture, but the frictional resistance between the surface of the pack and the ground is small, and the water film is formed on the surface of the pack, there is a problem that can reduce the anchor force over time, If the pressure inside the pack is not pressurized and the pressing force is rather large and the pressing force is increased, the pressure grout is discharged to the upper part of the perforation diameter, so that the diameter of the pack is almost impossible.

본 발명은 전술한 종래의 문제점을 해결하기 위해 안출한 것으로, 종래의 팩을 고정패커로 고정시키는 앵커에서 가지고 있는 지중에 있는 지하수와 팩 내부로 주입되는 주입재가 섞이지 않도록 하여 양질의 주입재 정착체를 형성할 수 있는 장점을 그대로 활용하되, The present invention has been made in order to solve the above-mentioned conventional problems, to prevent the injection of the groundwater in the ground and the injection material injected into the pack has a good quality injection material fixture in the anchor fixed to the conventional pack with a fixed packer Take advantage of what you can form,

노즐구멍이 뚫린 스파이크가 결합된 팩이 고정패커에 의해 상.하부에서 다단형성된 앵커체를 구성하여 팩 내부로 주입재를 주입시에 팩이 팽창되어 천공홀 내측벽을 가압함과 동시에 천공홀 내측벽으로 스파이크가 방사상으로 긴밀하게 삽입되도록 하여 앵커력을 확보할 수 있도록 하고, 팩 내부에 주입되는 주입재가 스파이크의 노즐구멍을 통해 지중으로 압력주입되도록 하여 정착체 주변지반을 최소한으로 개량할 수 있도록 하여 연약지반 보강시 우수한 앵커력을 도입할 수 있는 스파이크가 포함된 팽창팩이 다단형성된 팩앵커 및 이를 이용한 시공방법을 제공하는데 그 목적이 있다.The pack combined with the spiked hole of the nozzle constitutes the anchor body formed in the upper and lower parts by the fixed packer. When the injection material is injected into the pack, the pack expands and presses the inner wall of the hole. In order to secure the anchoring force by inserting the spike closely radially, the injection material injected into the pack can be injected into the ground through the nozzle hole of the spike to minimize the ground around the fixture. The purpose of the present invention is to provide a pack anchor with a multi-stage pack pack including a spike that can introduce excellent anchoring force when reinforcing soft ground and a construction method using the same.

상술한 목적을 달성하기 위한 본 발명의 특징에 의하면, 주입재를 수용하는 제1.2팽창팩과, 외주연에 제1.2팽창팩의 끝단부를 감싸며 연결 및 고정되게 하는 고정패커와, 인장강선을 정착시키는 고정부재와 보호캡이 나사체결되는 앵커몸체와, 제1.2팽창팩 내부에 주입재를 주입할 수 있도록 하는 주입호스를 포함하여 구성된다.According to a feature of the present invention for achieving the above object, a 1.2 expansion pack for receiving the injection material, a fixed packer for connecting and fixing the end of the 1.2 expansion pack to the outer periphery, and fixed to fix the tension wire Anchor body is screwed to the member and the protective cap, and the injection hose to inject the injection material into the 1.2 expansion pack.

또한, 상기 제1,2팽창팩은 내.외주연을 관통하여 수개의 스파이크가 소정간격마다 일체가 되게 방사상으로 내.외부고정판과 내.외부스토퍼에 의해 고정 설치되며, 상기 제2팽창팩으로 설치되는 스파이크는 노즐구을 형성하여 지반의 특성에 따라 선택적으로 사용할 수 있도록 구성된다.The first and second expansion packs are radially fixed by the inner and outer fixing plates and the inner and outer stoppers to penetrate the inner and outer circumferences so that several spikes are integrated at predetermined intervals. Spikes to be installed are configured to be selectively used according to the characteristics of the ground by forming a nozzle hole.

또한, 제2팽창팩의 내부에 설치되는 주입호스는 끝단부에 주머니를 형성하되, 주머니 내측에 팽창제와 강섬유를 포함시키고, 주입호스의 끝단부를 테이프로 막음 처리하여 주입호스와 주머니를 고무밴딩으로 체결하여 팽창팩의 내부로 설치되는 것을 특징으로 한다.In addition, the injection hose installed inside the second expansion pack to form a bag at the end, including the expansion agent and the steel fiber in the inside of the bag, the end of the injection hose with a tape to treat the injection hose and the bag by rubber banding By fastening is characterized in that it is installed into the expansion pack.

본 발명에 따른 스파이크가 포함된 팽창팩이 다단형성된 팩앵커에 의하면, 팩 내부에 주입재를 주입시에 팩이 팽창되며 천공홀의 내측벽을 가압함과 동시에 팽창팩으로 결합된 스파이크가 천공홀의 내측벽으로 긴밀히 삽입되어 앵커체를 정착시킬 수 있음에 따라 팩의 표면과 지반의 경계부의 마찰저항력을 극대화시켜 인장강선으로 인장력을 가할시 우수한 앵커력으로 연약지반을 보강할 수 있게 된다.  According to the pack anchor in which the expansion pack containing the spike according to the present invention is formed in multiple stages, the pack is expanded when the injection material is injected into the pack and pressurizes the inner wall of the punching hole and at the same time the spike coupled to the expansion pack is the inner wall of the drilling hole. As the anchor body can be firmly inserted into the anchor body, the frictional resistance between the surface of the pack and the ground is maximized, and when the tensile force is applied to the tensile steel, the soft ground can be reinforced.

본 발명은 스파이크가 내.외주연을 관통하여 결합된 팽창팩을 상.하 다단구조가 되게 고정패커로 결합 및 고정시키고 인장강선에 의해 앵커몸체와 연결하여 구성된 앵커를 천공홀로 삽입시켜 팽창팩 내부로 주입재를 주입시에 팩이 팽창되어 천공홀 내측벽을 가압함과 동시에 천공홀 내측벽으로 스파이크가 방사상으로 긴밀하게 삽입되도록 하여 앵커력을 확보할 수 있도록 하고, 팩 내부에 주입되는 주입 재가 스파이크의 노즐구멍을 통해 지중으로 압력주입되도록 하여 정착체 주변지반을 최소한으로 개량시켜 연약지반을 보강할 수 있도록 한 것이다.In the present invention, the expansion pack coupled to the inner and outer periphery of the spike is coupled and fixed with a fixed packer so as to be a multi-stage structure, and the anchor is formed by connecting with the anchor body by a tensile steel wire into the expansion hole inside the expansion pack When injecting the furnace injection material, the pack is expanded to pressurize the inner wall of the drilled hole, and the spike is radially tightly inserted into the inner wall of the drilled hole to secure anchoring force. Pressure injection into the ground through the nozzle hole of the to improve the ground around the fixture to a minimum to reinforce the soft ground.

본 발명은 고정패커에 의해 상.하 다단구조로 구성되는 팽창팩으로 스파이크를 설치하여 주입재에 의해 팽창팩이 팽창됨과 동시에 스파이크가 천공홀 내측벽으로 긴밀하게 삽입되도록 하여 우수한 앵커력을 도입하는데 그 기술적 특징이 있다.The present invention installs a spike into the expansion pack consisting of a multi-stage structure by the fixed packer to expand the expansion pack by the injection material and to insert the spike tightly into the inner wall of the drilling hole to introduce an excellent anchor force There are technical features.

이하, 본 발명의 구성을 이하 첨부된 도면과 함께 상세히 살펴보면,Hereinafter, the configuration of the present invention in detail with reference to the accompanying drawings,

도 1은 본 발명의 실시예를 보인 분리사시도를 나타낸 것이고, 도 2는 본 발명의 실시예에 따른 결합상태를 보인 사시도를 나타낸 것이며, 도 3은 본 발명의 실시예에 따른 사용상태를 보인 사시도를 나타낸 것이고, 도 4내 도 6는 본 발명의 실시예에 따른 시공상태를 보인 단면도를 나타낸 것이고, 도 7은 본 발명의 실시예에 따른 시공상태를 위에서 보인 평면도를 나타낸 것이며, 도 8은 본 발명의 주입재를 주입시 사용되는 주입관의 구성을 보인 사시도를 나타낸 것이다.1 is an exploded perspective view showing an embodiment of the present invention, Figure 2 is a perspective view showing a coupled state according to an embodiment of the present invention, Figure 3 is a perspective view showing a use state according to an embodiment of the present invention 4 and 6 are cross-sectional views showing a construction state according to an embodiment of the present invention, Figure 7 is a plan view showing the construction state according to an embodiment of the present invention from above, Figure 8 is It shows a perspective view showing the configuration of the injection tube used when injecting the injection material of the invention.

본 발명은 도 1에 보인바와 같이 주입재를 수용하는 제1.2팽창팩(10a,10b)과, 외주연에 제1.2팽창팩(10a,10b)의 끝단부를 감싸며 연결 및 고정되게 하는 고정패커(20)와, 인장강선(200)을 정착시키는 앵커몸체(30)와, 제1.2팽창팩(10a,10b) 내부에 주입재를 주입할 수 있도록 하는 주입호스(40)를 포함하여 구성된다.The present invention, as shown in Figure 1, the first expansion pack (10a, 10b) for receiving the injection material and the fixed packer 20 to wrap and connect the end of the 1.2 expansion pack (10a, 10b) to the outer periphery And an anchor body 30 for fixing the tensile steel wire 200 and an injection hose 40 for injecting an injection material into the 1.2 expansion packs 10a and 10b.

상기 팽창팩(10)은 제1.2팽창팩(10a,10b)으로 나눠어져 고정패커(20)에 의해 상.하부 다단구조를 형성하게 되며, 내.외주연을 관통하여 수개의 스파이크(11)가 소정간격마다 일체가 되게 방사상으로 설치되어 있다.The expansion pack 10 is divided into 1.2 expansion packs (10a, 10b) to form the upper and lower multi-stage structure by the fixed packer 20, several spikes 11 through the inner and outer circumference It is radially provided so as to be integrated at predetermined intervals.

상기 팽창팩(10)으로 일체가 되게 설치되는 스파이크(11)는 팽창팩(10)의 내.외주연을 관통하여 설치되며, 상기 팽창팩(10)을 사이로 하여 팽창팩(10)의 내.외주연을 관통하여 설치되는 스파이크(11)를 내.외부고정판(13,14)과 내.외부스토퍼(12,15)에 의해 고정하게 된다.Spike 11 is installed integrally with the expansion pack 10 is installed through the inner and outer periphery of the expansion pack 10, the expansion pack 10 through the inside of the expansion pack (10). The spike 11 installed through the outer periphery is fixed by the inner and outer fixing plates 13 and 14 and the inner and outer stoppers 12 and 15.

한편, 상기 제2팽창팩(10b)으로 설치되는 스파이크(11)는 중앙부위에 노즐구멍(11a)을 형성하여 팽창팩(10)의 내부에 주입되는 주입재를 노즐구멍(11a)을 통하여 지중으로 분사시켜 지반을 개량할 수 있게 되며, 이는 지반의 특성에 따라 선택적으로 사용할 수 있게 된다.On the other hand, the spike 11 installed as the second expansion pack 10b forms a nozzle hole 11a in the center portion, and the injection material injected into the expansion pack 10 into the ground through the nozzle hole 11a to the ground. It is possible to improve the ground by spraying, which can be selectively used according to the characteristics of the ground.

상기 스파이크(11)를 팽창팩(10)에 고정시키는 내.외부고정판(13,14)과 내.외부스토퍼(12,15)는 팽창팩(10)의 내.외주연으로 돌출되는 스파이크(11)로 끼움식으로 끼움시켜 고정시킬 수 있게 중앙이 스파이크(11)의 외주연과 동일한 직경의 관통구가 형성되어 있다.The inner and outer fixing plates 13 and 14 and the inner and outer stoppers 12 and 15 fixing the spike 11 to the expansion pack 10 are spikes 11 protruding from the inner and outer circumferences of the expansion pack 10. The through hole of the same diameter as the outer periphery of the spike 11 is formed in the center so that it can be fitted and fixed by fitting.

상기 고정패커(20)는 바깥둘레면에 수개의 요입홈(21)이 형성되어 있고, 상.하부측을 관통하여 인장강선(200)이 통과되게 하는 하나 이상의 관통공(22)이 뚫리고, 주입호스(40)를 연결하는 하나 이상의 체결공(23)이 형성되어 있다.The fixed packer 20 has a plurality of recessed grooves 21 are formed on the outer circumferential surface, one or more through-holes 22 through which the tensile steel wire 200 passes through the upper and lower sides thereof, and are injected. One or more fastening holes 23 connecting the hoses 40 are formed.

상기 고정패커(20)는 도 2내지 도 3에 보인바와 같이 바깥둘레면에 제1.2팽창팩(10a,10b)의 끝단부를 감싸는 식으로 연결하여 요입홈(21)으로 고무밴드 또는 금속소재의 와이어로 이루어진 고정수단(201)으로 체결하여 제1.2팽창팩(10a,10b)을 고정패커(20)로 설치하게 된다.The fixing packer 20 is connected to the outer circumferential surface of the 1.2 expansion pack (10a, 10b) wrapped around the end as shown in Figs. 2 to 3 by the concave groove (21) wire of rubber band or metal material By fastening with a fixing means 201 consisting of the 1.2 expansion pack (10a, 10b) is to be installed as a fixed packer (20).

상기 앵커몸체(30)는 인장강선(200)을 정착시키는 정착쐐기(33)를 결합하는 테이퍼공(32)이 형성된 고정부재(31)와, 정착쐐기(33)가 부식되는 것을 방지하기 위해 하부측에서 결합되는 보호캡(34)으로 이루어져 있으며, 고정부재(31)의 하단부에 숫나사부(31a)가 형성되고, 보호캡(34)의 상부내측면에 암나사부(34a)가 형성되어 나사체결하여 결합하게 된다. The anchor body 30 is a fixing member 31 is formed with a tapered hole 32 for coupling the fixing wedge 33 for fixing the tensile steel wire 200, the lower portion to prevent the fixing wedge 33 is corroded It consists of a protective cap 34 is coupled from the side, the male screw portion 31a is formed at the lower end of the fixing member 31, the female screw portion 34a is formed on the upper inner side of the protective cap 34 is screwed To combine.

이하, 본 발명에 따른 스파이크가 포함된 팽창팩이 다단형성된 팩앵커(100)를 도 4 내지 도 6에 보인바와 같이 시공방법을 통해 더욱 상세하게 설명하면,Hereinafter, the pack anchor 100 in which the expansion pack including the spike according to the present invention is formed in multiple stages will be described in more detail through a construction method as shown in FIGS. 4 to 6.

먼저, 본 발명의 팩앵커(100)는 인장강선(200)이 제1.2팽창팩(10a,10b)의 내측과 고정패커(20)의 관통공(22)을 통과하여 앵커몸체(30)를 구성하는 고정부재(31)로 정착쐐기(33)에 의해 체결되도록 하고, 인장강선(200)과 함께 주입호스(40) 또한 고무패커(20)의 체결공(23)으로 연결하고, 제1.2팽창팩(10a,10b)의 양끝단부가 고정패커(20)의 바깥둘레면을 감싸지도록 하여 고무밴드 또는 와이어로 된 고정수단(201)으로 묶음식으로 체결시켜 제1.2팽창팩(10a,10b)이 밀폐되어진 채 상.하 다단구조가 되게 조립하게 된다.First, in the pack anchor 100 of the present invention, the tensile steel wire 200 passes through the inside of the 1.2 expansion packs 10a and 10b and the through hole 22 of the fixed packer 20 to constitute the anchor body 30. The fixing member 31 to be fastened by the fixing wedge 33, and the injection hose 40 together with the tensile steel wire 200 is also connected to the fastening hole 23 of the rubber packer 20, 1.2 expansion pack Both ends of the 10a and 10b are wrapped around the outer circumferential surface of the fixing packer 20 and fastened together with food by a fixing means 201 made of rubber bands or wires to seal the 1.2 expansion packs 10a and 10b. As it is, the upper and lower multi-stage structure is assembled.

상기 고정패커(20)의 체결공(23)으로 연결하게 되는 주입호스(40)는 일측은 제1팽창팩(10a)의 내측에 위치되어지고, 타측은 제2팽창팩(10b)의 내측으로 위치시켜 팽창팩(10)의 내측에 주입재를 주입시에 각각 주입하게 된다.The injection hose 40 to be connected to the fastening hole 23 of the fixed packer 20 is one side is located inside the first expansion pack 10a, the other side is inside the second expansion pack 10b. When the injection material is injected into the inside of the expansion pack 10 to position each.

상기 팩앵커(100)의 조립이 완료되면, 연약지반의 천공홀(300)에 인장강선(200)이 체결된 팩앵커(100)를 삽입하게 된다.When the assembly of the pack anchor 100 is completed, the pack anchor 100 in which the tensile steel wire 200 is fastened to the drilling hole 300 of the soft ground is inserted.

여기서 스파이크(11)가 부착된 제1,2팽창팩(10a,10b)은 고정패커(20)와 함게 앵커몸체(30)에 설치되면 팽창팩(10)이 유연한 재료이기 때문에 스파이크(11)는 작은 직경으로 움츠려 둔 상태로 천공 구멍 내로 용이하게 삽입할 수 있게 된다.The first and second expansion packs 10a and 10b having the spikes 11 attached thereto are installed on the anchor body 30 together with the fixed packer 20, and thus the spikes 11 are made of a flexible material. It can be easily inserted into the drilled hole with the small diameter retracted.

상기 팩앵커(100)의 삽입이 완료 되어지면, 고정패커(20)에 의해 내설된 주입호스(40)를 통하여 먼저 제1팽창팩(10a)의 내부에 주입재를 일정한 압력으로 가압 충진하게 되고, 제1팽창팩(10a)의 내부가 주입재로 가압 충진되면서 팽창팩(10)이 팽창되어 천공홀(300) 내측벽면을 가압하게됨과 동시에 팽창팩(10)으로 설치된 스파이크(11)가 천공홀(300) 내측벽면에 긴밀하게 삽입되게 된다. 이에 팽창팩(10)의 표면과 지반의 경계부의 마찰저항력을 극대화할 수 있게 되고, 스파이크(11)가 팽창팩(10) 내부에까지 근입되어 있어 저항력을 증대시킬 수 있게 된다.When the insertion of the pack anchor 100 is completed, the injection material is pressurized and filled at a constant pressure inside the first expansion pack 10a through the injection hose 40 internally installed by the fixed packer 20, As the inside of the first expansion pack 10a is pressurized and filled with an injection material, the expansion pack 10 is expanded to pressurize the inner wall surface of the drilling hole 300 and at the same time, the spike 11 installed as the expansion pack 10 is drilled in the hole ( 300) It is closely inserted into the inner wall surface. Accordingly, the frictional resistance between the surface of the expansion pack 10 and the ground can be maximized, and the spikes 11 are incorporated into the expansion pack 10 to increase resistance.

상기 제1팽창팩(10a)으로 주입이 완료되면, 제2팽창팩(10b)으로 동일하게 주입호스(40)에 의해 일정 압력으로 주입시키게 된다. When the injection is completed to the first expansion pack (10a), it is injected to the second expansion pack (10b) by the injection hose 40 at the same pressure.

여기서 제2팽창팩(10b) 내부에 주입재를 압력 주입할 수 있게 되는데 이는 제1팽창팩(10a) 내부로 우선적으로 주입재를 주입하고 난 후, 제2팽창팩(10b)으로 주입하게 되면 지반과 상부측 제1팽창팩(10a)에 의해 내부가 구속된 상태가 되므로 하부측 팽창팩(10) 내부로 용이하게 압력 주입할 수 있게 되는 효과가 있다.In this case, the injection material may be injected into the second expansion pack 10b by pressure, which is injected first into the first expansion pack 10a and then injected into the second expansion pack 10b. Since the interior is constrained by the upper first expansion pack 10a, there is an effect that the pressure can be easily injected into the lower expansion pack 10.

또한, 제2팽창팩(10b)에 설치되는 스파이크(11)에는 노즐구멍(11a)이 형성되어 내부에 충진 가압되는 주입재가 스파이크(11)의 노즐구멍(11a)을 타고 지중으로 압력주입됨에 따라 앵커몸체(30)의 주변지반(A)을 최소한으로 개량 가능할 수 있어 연약지반을 더욱 효율적으로 보강할 수 있게 된다. 이는 지반의 특성에 따라 사용자가 노즐구멍(11a)이 형성된 스파이크(11)를 선택적으로 사용하는 것이 바람직하다.In addition, since the nozzle hole 11a is formed in the spike 11 installed in the second expansion pack 10b and the injection material filled and pressurized in the pressure is injected into the ground through the nozzle hole 11a of the spike 11. Peripheral ground (A) of the anchor body 30 can be improved to a minimum to be able to reinforce the soft ground more efficiently. It is preferable that the user selectively use the spike 11 having the nozzle hole 11a according to the characteristics of the ground.

상기 스파이크(11)의 노즐구멍(11a)은 천공홀(300)로 삽입시에 이물질이 끼이는 것을 방지하기 위해 최초 고무마개(11b)로 막아 놓게 되며, 노즐구멍(11a)을 통해 주입재가 분사시에 주입재의 압력에 의해 고무마개(11b)를 분리시키며 지반으로 주입재를 분사할 수 있게 된다.The nozzle hole 11a of the spike 11 is closed with an initial rubber stopper 11b to prevent foreign matter from being caught into the drilling hole 300, and the injection material is injected through the nozzle hole 11a. At the time, the rubber stopper 11b is separated by the pressure of the injection material, and the injection material can be injected onto the ground.

한편, 본 발명은 앵커몸체의 주변지반을 개량시에 상부측 제1팽창팩(10a)의 주변지반보다 큰 직경의 팽창구근을 형성할 수 있도록 도 7에 보인 바와 같이 팽창팩(10)의 내부에 설치되는 주입호스(40)의 끝단부에 팽창제(43)를 포함시킬 수 있도록 주머니(41)를 형성하되, 작은 압력으로도 주머니(41)가 자연스럽게 터지거나 탈거될 수 있도록 주머니(41) 내측에 팽창제(43)를 포함시키고, 주입호스(40)의 끝단부를 테이프(42)로 막음처리하며, 주입호스(40)와 주머니(41)를 고무밴딩(46)하여 구비하게 된다. 이는 주입재가 주입되게 되면 주입재와 팽창제(43)와 섞여 주입재와 함께 팽창을 일으킴으로서 앵커몸체(30) 주변지반(A)을 밀어내게 되어 큰 직경의 팽창구근이 형성되도록 하고, 이는 지반과 주입재가 압착되면서 지반을 밀실하게 하고 개량하는 효과가 있어 앵커력 도입에 더욱 유리하게 된다.On the other hand, the present invention, as shown in Figure 7 to form an expansion bulb having a diameter larger than the peripheral ground of the upper first expansion pack 10a when the peripheral ground of the anchor body is improved The bag 41 is formed to include the inflating agent 43 at the end of the injection hose 40 to be installed in the inside of the bag 41 so that the bag 41 can be naturally burst or removed even at a small pressure Including the expansion agent 43, the end of the injection hose 40 is closed with a tape 42, the injection hose 40 and the bag 41 is provided with a rubber bending (46). When the injection material is injected, it is mixed with the injection material and the expansion agent 43 to cause expansion together with the injection material to push the ground (A) around the anchor body 30 to form a large diameter expansion bulb, which is the ground and the injection material As it compresses, the ground becomes tight and improved, which is more advantageous for introducing anchor force.

또한 주입호스(40)의 단부에 형성되는 주머니(41) 내에 강섬유(44)를 포함시켜 주입되는 주입재와 적절히 섞임으로서 강섬유(44)혼합 주입재가 되게 함으로써 앵커몸체(30)의 지압부분의 주입재 강도를 최대한 높일 수 있는 것이다.In addition, the strength of the injection material of the acupressure portion of the anchor body 30 by including the steel fiber 44 in the bag 41 formed at the end of the injection hose 40 to be mixed with the injection material to be injected into a mixed injection material of the steel fiber 44 To increase as much as possible.

상기 제1,2팽창팩으로 주입재의 주입이 완료되면, 팩앵커(100)의 외부 천공홀(300)로 주입재를 충진시켜 인장강선(200)으로 인장력을 가하여 시공을 완료하게 된다.When the injection of the injection material into the first and second expansion pack is completed, the injection material is filled into the outer perforation hole 300 of the pack anchor 100 to apply a tensile force to the tensile steel wire 200 to complete the construction.

상기와 같이 본 발명을 구성함에 따라 제1팽창팩(10a) 내부에 주입재로 주입완료하고 나서 제2팽창팩(10b) 내를 주입할 때에는 천공홀(300) 주변의 지반과 제1 팽창팩(10a)에 의해 사방이 모두 구속된 상태가 되므로 제2팽창팩(10b)에는 더욱 강한 압력을 원활하게 가할 수 있게 되어 더욱 양질의 앵커체 구근이 형성될 수 있으며, 제2팽창팩(10b)에 설치되는 스파이크(11)에는 지반에 따라 선택적으로 노즐구멍)(11a)을 형성하여 주변지반을 개량할 수 있게 될뿐만 아니라 앵커 정착부 전체에 걸쳐 지중 및 주입재 내를 파고드는 스파이크(11)가 설치되므로 팽창팩(10)과 지반과의 경계면에서의 마찰저감 또한 방지될 수 있게 되어 특히 연약지반에 있어서 시공되는 앵커력의 확보에 매우 유리한 기술이다.According to the present invention as described above, when the injection is completed in the first expansion pack (10a) with the injection material and then the inside of the second expansion pack (10b) is injected into the ground around the hole 300 and the first expansion pack ( Since all directions are constrained by 10a), it is possible to smoothly apply stronger pressure to the second expansion pack 10b, so that a higher quality anchor body bulb can be formed, and to the second expansion pack 10b. The spike 11 to be installed can be selectively formed according to the ground (nozzle hole) (11a) to improve the surrounding ground, as well as the spike 11 that penetrates the ground and the injection material throughout the anchor fixing portion is installed Therefore, the friction reduction at the interface between the expansion pack 10 and the ground can also be prevented, which is a very advantageous technique for securing the anchoring force that is particularly constructed in the soft ground.

상술한 바와 같은, 본 발명의 바람직한 실시예에 따른 스파이크가 포함된 팽창팩이 다단형성된 팩앵커(100)를 상기한 설명 및 도면에 따라 도시하였지만, 이는 예를 들어 설명한 것에 불과하며 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 다양한 변화 및 변경가능하다는 것을 이 분야의 통상적인 기술자들은 잘 이해할 수 있을 것이다.As described above, the pack anchor 100 in which the expansion pack including the spike according to a preferred embodiment of the present invention is formed in multiple stages is shown according to the above description and drawings, but this is merely described as an example and the technical features of the present invention. Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit.

도 1은 본 발명의 실시예를 보인 분리사시도1 is an exploded perspective view showing an embodiment of the present invention

도 2는 본 발명의 실시예에 따른 결합상태를 보인 사시도2 is a perspective view showing a coupled state according to an embodiment of the present invention

도 3은 본 발명의 실시예에 따른 사용상태를 보인 사시도3 is a perspective view showing a state of use according to an embodiment of the present invention

도 4내 도 6은 본 발명의 실시예에 따른 시공상태를 보인 단면도4 to 6 is a cross-sectional view showing a construction state according to an embodiment of the present invention

도 7은 본 발명의 실시예에 따른 시공상태를 위에서 보인 평면도7 is a plan view showing a construction state from above according to an embodiment of the present invention;

도 8은 본 발명의 주입재를 주입시 사용되는 주입관의 구성을 보인 사시도Figure 8 is a perspective view showing the configuration of the injection tube used when injecting the injection material of the present invention

<도면의 주요 부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

300 : 천공홀 200 : 인장강선 100 : 팩앵커300: drilling hole 200: tensile steel wire 100: pack anchor

10 : 팽창팩 11 : 스파이크 12 : 외부스토퍼 13 : 외부고정판 14 : 내부고정판 15 : 내부스토퍼 DESCRIPTION OF SYMBOLS 10 Expansion pack 11 Spike 12 External stopper 13 External fixing board 14 Internal fixing board 15 Internal stopper

20 : 고정패커 21 : 요입홈 22 : 관통공 23 : 체결공 20: fixed packer 21: recess groove 22: through hole 23: fastening hole

30 : 앵커몸체 31 : 고정부재 32 : 테이퍼공 33 : 정착쐐기30: anchor body 31: fixing member 32: taper hole 33: fixing wedge

34 : 보호캡 34: protective cap

40 : 주입호스 41 : 주머니 42 : 테이프 43 : 팽창제40: injection hose 41: bag 42: tape 43: expanding agent

44 : 강섬유 46 : 고무밴딩44: steel fiber 46: rubber banding

Claims (4)

삭제delete 주입재를 수용하는 제1.2팽창팩(10a,10b)과, 외주연에 제1.2팽창팩(10a,10b)의 끝단부를 감싸며 연결 및 고정되게 하는 고정패커(20)와, 인장강선(200)을 정착시키는 고정부재(31)와 보호캡(34)이 나사체결되는 앵커몸체(30)와, 제1.2팽창팩(10a,10b) 내부에 주입재를 주입할 수 있도록 하는 주입호스(40)를 포함하여 구성된 팽창팩이 다단형성된 팩앵커에 있어서,Fixing the 1.2 expansion pack (10a, 10b) for receiving the injection material, the fixed packer 20 to wrap and connect the end of the 1.2 expansion pack (10a, 10b) to the outer periphery, and the tensile steel wire 200 Anchor body 30 to which the fixing member 31 and the protective cap 34 to be screwed, and the injection hose 40 to inject the injection material into the 1.2 expansion pack (10a, 10b) In the pack anchor in which the expansion pack is multi-stage, 상기 제1,2팽창팩(10a,10b)은 수개의 스파이크(11)를 내.외부고정판(13,14)과 내.외부스토퍼(12,15)에 의해 방사상으로 고정 설치하고,  The first and second expansion packs 10a and 10b are fixed to radially fixed by a plurality of spikes 11 by the inner and outer fixing plates 13 and 14 and the inner and outer stoppers 12 and 15, 상기 제2팽창팩(10b)으로 설치되는 스파이크(11)는 주입재를 분사할 수 있는 노즐구멍(11a)을 형성하여 지반의 특성에 따라 선택적으로 사용할 수 있도록 구성한 것을 특징으로 하는 스파이크가 포함된 팽창팩이 다단형성된 팩앵커.The spike 11 installed as the second expansion pack 10b has a nozzle hole 11a through which the injection material can be injected, so that the spike 11 can be selectively used according to the characteristics of the ground. Pack anchors with packs in multiple stages. 제 2항에 있어서, 상기 제2팽창팩(10b)의 내부에 설치되는 주입호스(40)는 끝단부에 주머니(41)를 형성하되, 주머니(41) 내측에 팽창제(43)와 강섬유(44)를 포함시키고, 주입호스(40)의 끝단부를 테이프(42)로 막음 처리시킨 후, 주입호스(40)와 주머니(41)를 고무밴딩(46)에 의해 체결하여 팽창팩(10)의 내부로 설치함으로서 앵커 주변에 팽창구근을 형성할 수 있도록 구성한 것을 특징으로 하는 스파이크가 포함된 팽창팩이 다단형성된 팩앵커(100).According to claim 2, wherein the injection hose 40 installed in the second expansion pack (10b) forms a bag 41 at the end, the expansion agent 43 and the steel fiber 44 inside the bag 41 ), The end of the injection hose 40 is closed with a tape 42, and then the injection hose 40 and the bag 41 are fastened by the rubber bending 46 to the inside of the expansion pack 10. Packed anchor 100 is a multi-stage expansion pack containing a spike, characterized in that configured to form an expansion bulb around the anchor by installing as. 팽창팩이 다단형성된 팩앵커를 천공홀(300)로 삽입시켜 팽창팩 내부 및 외부로 그라우트를 주입하여 앵커력을 확보하는 팩앵커를 이용한 시공방법에 있어서,In the construction method using a pack anchor to secure the anchor force by inserting the pack anchor in which the expansion pack is formed in multiple stages into the drilling hole 300 to inject grout into and out of the expansion pack, 상부측 스파이크가 포함된 제1팽창팩에 의해 천공홀(300) 내측벽을 가압하여 사방이 밀폐되어진 상태에서 하부측 제2팽창팩(10b)으로 주입재를 주입하되, 제2팽창팩 내부에 구비된 팽창제, 강섬유와 주입재가 혼합되도록 하고 혼합된 주입재를 노즐구멍(11a)이 뚫린 스파이크에 의해 앵커몸체의 주변지반으로 압력분사함과 동시에 팽창을 일으킴으로서 앵커몸체(30) 주변지반(A)을 밀어내게 되어 팽창구근을형성하게 되며, 지반과 주입재가 압착되면서 지반을 밀실하게 하여 앵커력을 도입할 수 있는 것을 특징으로 하는 스파이크가 포함된 팽창팩이 다단형성된 팩앵커를 이용한 시공방법.Pressing the inner wall of the drilling hole 300 by the first expansion pack containing the upper side spikes to inject the injection material into the lower second expansion pack 10b in a sealed state, provided inside the second expansion pack. The expansion agent, the steel fiber and the injection material are mixed, and the injection of the mixed injection material into the surrounding ground of the anchor body by the spikes of the nozzle hole 11a causes the expansion and at the same time causes the expansion of the ground around the anchor body (A). It is pushed to form the expansion bulb, the ground and the injection material is compressed, the construction method using a pack anchor formed of a multi-stage expansion pack containing a spike, characterized in that the anchor can be introduced by keeping the ground tight.
KR1020080135031A 2008-12-27 2008-12-27 The spike expansion pack multistage with anchor using pack and the constructing method thereof KR100944460B1 (en)

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CN103424835A (en) * 2013-05-30 2013-12-04 中冶(北京)交通科技发展有限公司 Tunnel temperature sensing optical cable steel wire rope anchor point fastening method
KR101558931B1 (en) 2013-10-11 2015-10-12 재단법인 포항산업과학연구원 File with enhanced tensile resistances
KR20150132706A (en) * 2014-05-16 2015-11-26 대원토질 주식회사 The grouting building method of anchor for strengthening the ground
KR20160069023A (en) 2014-12-05 2016-06-16 (주) 효창이엔지 A pack anchor for decreasing excess pore water pressure of flimsy ground and a method for reinforcing flimsy ground using the same
CN107059861A (en) * 2017-06-02 2017-08-18 安徽理工大学 It is a kind of into disc tool and with the native anchor of the polydisc prepared into disc tool
KR20180069491A (en) * 2016-12-15 2018-06-25 전남대학교산학협력단 Expandable pressing-type rock bolt and installing method of the same

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KR200359049Y1 (en) * 2004-05-17 2004-08-16 이기웅 Apparatus for compression anchor using pack
KR100820642B1 (en) 2007-09-15 2008-04-08 박이근 Anchor-nail device for slope-reinforcement-construction and slope stabilization method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103424835A (en) * 2013-05-30 2013-12-04 中冶(北京)交通科技发展有限公司 Tunnel temperature sensing optical cable steel wire rope anchor point fastening method
KR101558931B1 (en) 2013-10-11 2015-10-12 재단법인 포항산업과학연구원 File with enhanced tensile resistances
KR20150132706A (en) * 2014-05-16 2015-11-26 대원토질 주식회사 The grouting building method of anchor for strengthening the ground
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KR20160069023A (en) 2014-12-05 2016-06-16 (주) 효창이엔지 A pack anchor for decreasing excess pore water pressure of flimsy ground and a method for reinforcing flimsy ground using the same
KR20180069491A (en) * 2016-12-15 2018-06-25 전남대학교산학협력단 Expandable pressing-type rock bolt and installing method of the same
KR101964617B1 (en) * 2016-12-15 2019-04-02 전남대학교산학협력단 Expandable pressing-type rock bolt and installing method of the same
CN107059861A (en) * 2017-06-02 2017-08-18 安徽理工大学 It is a kind of into disc tool and with the native anchor of the polydisc prepared into disc tool
CN107059861B (en) * 2017-06-02 2023-09-29 安徽理工大学 Disk forming tool and multi-disk soil anchor prepared by using same

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