KR100855381B1 - Acupressure Expandable Ground Anchor Structure - Google Patents

Acupressure Expandable Ground Anchor Structure Download PDF

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KR100855381B1
KR100855381B1 KR1020080031416A KR20080031416A KR100855381B1 KR 100855381 B1 KR100855381 B1 KR 100855381B1 KR 1020080031416 A KR1020080031416 A KR 1020080031416A KR 20080031416 A KR20080031416 A KR 20080031416A KR 100855381 B1 KR100855381 B1 KR 100855381B1
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South Korea
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finger
hole
expansion
anchor
insertion groove
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KR1020080031416A
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Korean (ko)
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이인귀
박수범
김종모
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주식회사 한국종합기술
이인귀
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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
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
    • 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
    • E02D5/58—Prestressed concrete 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
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2200/00—Geometrical or physical properties
    • E02D2200/15—Geometrical or physical properties including at least a hinge

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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)
  • Piles And Underground Anchors (AREA)

Abstract

본 발명은 앵커의 선단부가 이물질에 묻혀 그라우트 압축 강도가 저하되는 것을 방지하며, 별도의 추가 공정 없이 제품 자체 특성만으로 천공 홀에 삽입되는 앵커가 천공홀 바닥면에 부딪히는 충격에 의해 펼쳐진 확장핑거와 보조핑거가 암반층에서는 천공 지반에 강하게 끼이는 형태로 확장이 되고, 연약층에서는 천공 지반으로 강하게 파고들며 박히면서 확장하여 앵커와 지반과의 결속력을 높여줌과, 외부의 충격에 의해 펼쳐진 확장핑거와 보조핑거가 천공 지반 내면으로 깊숙이 박혀 앵커의 결속력을 높여줌과 동시에 확장핑거가 수평상태로 까지 꺽이도록 하여 확장이 완벽하게 이루어지는 지압식 확장형 그라운드 앵커 구조에 관한 것이다.The present invention prevents the grout compressive strength from being lowered by the front end of the anchor buried in the foreign matter, and the expansion finger and the auxiliary finger unfolded by the impact that the anchor is inserted into the drill hole by the product itself without any additional process, the impact on the bottom surface of the drill hole In the rock layer, the finger expands in the form of being strongly pinched in the perforated ground, and in the soft layer, it penetrates strongly into the perforated ground and gets stuck and expands to increase the cohesion between the anchor and the ground, and the expansion finger and the auxiliary finger unfolded by the external impact Deeply embedded in the inner surface of the perforated ground to increase the anchoring force of the anchor and at the same time to expand the extension finger to the horizontal state to expand the acupressure type ground anchor structure is perfect expansion.

이는 상면 중앙에 가이드축(30)이 삽입되는 삽입공(11)을 가지며 외면에 복수 개의 PC강재가 삽입하는 체결공(12)을 형성하고, 체결공(12)의 양측으로 상면에 힌지공(13)을 가지면서 중간에 삽입홈(15)을 갖는 받침판(14)이 형성된 몸체(10);It has an insertion hole 11 in which the guide shaft 30 is inserted in the center of the upper surface, and forms a fastening hole 12 into which a plurality of PC steels are inserted on the outer surface, and hinge holes on the upper surface on both sides of the fastening hole 12 ( Body 10 having a support plate 14 having an insertion groove 15 in the middle having a 13;

상기 몸체(10)의 삽입홈(15)에 체결되며 상측 외면에 날카로운 돌기(21)가 형성되고 중앙에 삽입홈(23)을 가지며 하측에 힌지공(24)과 하단에 걸림턱(26)을 가지는 확장핑거(20);It is fastened to the insertion groove 15 of the body 10 and has a sharp protrusion 21 formed on the upper outer surface, has an insertion groove 23 in the center and the hinge hole 24 and the locking jaw 26 at the lower side thereof. Expansion finger 20 having;

상기 몸체(10)의 삽입공(11)에 삽입 설치되며 하측 단에 타격판(31)이 형성된 지지봉(33)을 형성하고, 지지봉(33)의 상단에는 양측에 나사산(34)을 갖는 연결봉(35)을 체결하며, 연결봉(35)의 상측에는 고정판(36)을 형성하고 고정판(36)의 상측에는 경사면(37a)을 갖는 가이드판(37)이 압축스프링(38)으로 연결된 가이드축(30);Inserted into the insertion hole (11) of the body (10) is formed to form a support rod (33) formed with a striking plate (31) at the lower end, the connecting rod having a screw thread (34) on both sides at the upper end of the support rod (33) 35, a guide shaft 30 having a fixed plate 36 formed on the upper side of the connecting rod 35 and a guide plate 37 having an inclined surface 37a on the upper side of the fixed plate 36 connected to the compression spring 38. );

상기 확장핑거(20)가 수평 상태로 꺾이도록 설치되며 외주면에 복수 개의 결합돌기(51)를 갖는 상측고정구(52)와 내부로 삽입되도록 복수 개의 결합홈(53)을 갖는 하측연결구(54)의 외면에 압축스프링(55)이 설치된 중심축(56)으로 연결하고, 상단이 하측연결구(54)의 결합홈(53)에 설치되고 하단이 확장핑거(20)의 삽입홈(23)에 설치되는 링크바(50)를 설치하며, 하단이 링크바(50)의 하측 양쪽 면에 밀착 설치되며 상단은 상측고정구(52)의 결합돌기(51)에 설치되는 가이드바(60)를 갖는 확장핑거이송구(70);로 구성한다.The expansion finger 20 is installed to be bent in a horizontal state of the upper connector 52 having a plurality of engaging projections 51 on the outer peripheral surface and the lower connector 54 having a plurality of coupling grooves 53 to be inserted into the interior. It is connected to the central shaft 56, the compression spring 55 is installed on the outer surface, the upper end is installed in the coupling groove 53 of the lower connector 54 and the lower end is installed in the insertion groove 23 of the expansion finger 20 Link bar 50 is installed, the lower end is installed in close contact with both sides of the lower side of the link bar 50, the upper end of the extension finger having a guide bar 60 is installed on the engaging projection 51 of the upper fixture 52 70, consisting of.

Description

지압식 확장형 그라운드 앵커 구조{Extension type ground anchor structure}Anchor type ground anchor structure

본 발명은 지압식 그라운드 앵커 구조에 관한 것으로, 더욱 상세하게는 PC강재(PC강연선, PC강선, 강봉, 이형강봉 등)를 인장재로 사용하여 토목구조물이나 건축구조물의 보강, 흙막이, 사면안정, 터널보강, 옹벽보강, 교각 안정, 철탑 전도방지, 건축물의 부상방지 등에 적용되는 가설 및 영구 그라운드 앵커공사에서, 별도의 추가 공정 없이 제품 자체 특성만으로 천공 홀에 삽입되는 앵커의 확장핑거 및 보조핑거가 강하게 확장을 하여, 앵커와 지반과의 결속력을 높여 인장력 확보가 용이하도록 한다. The present invention relates to a structure of acupressure ground anchors, and more specifically, PC steel (PC strand, PC steel, steel bar, deformed steel bar, etc.) as a tensile material reinforcement of civil structures or building structures, soil barrier, slope stability, tunnel In the construction of temporary and permanent ground anchors applied to reinforcement, retaining wall reinforcement, pier stabilization, steel tower fall prevention, and building injury prevention, the expansion finger and auxiliary finger of anchor inserted into the perforation hole by the product itself without additional process By expanding, it is easy to secure the tensile strength by increasing the binding force between the anchor and the ground.

그라운드 앵커는 사용 기간 및 목적에 의해 영구 구조물에 적용되는 영구 앵커와 일반적으로 2년 미만의 기간으로 사용되는 가설 앵커로 분류하며, 지반에 대한 지지방식에 따라 마찰식, 지압식, 복합식 등으로 분류하고, 인장재의 그라우트에 의한 지지방식에 따라 인장형, 압축 분산형, 압축 집중형 등으로 분류한다.Ground anchors are classified into permanent anchors applied to permanent structures according to the period of use and purpose, and temporary anchors generally used for less than two years, and classified into friction type, acupressure type, composite type, etc. according to the support method for the ground. According to the supporting method of the grout of the tension member, it is classified into a tension type, a compression dispersion type, a compression concentration type, and the like.

그리고 인장재의 종류 및 사용 용도에 따라 PC강연선 앵커, 강봉 앵커, 매립 식 앵커, 제거식 앵커 등으로 분류한다.And it is classified into PC strand strand anchor, steel rod anchor, buried anchor, removable anchor, etc. according to the type of tension member and its use.

위와 같이 그라운드 앵커공법이 여러 가지로 분류되는 가장 중요한 이유인 인장력 확보를 위해서는 지반 조건에 맞는 시공 방법 및 자재 선정이 이루어져야 하는데, 현재 통상적으로 적용하는 시공순서는, 천공장비에 의해 천공(약 105mm) 되어진 천공 홀 내부에 앵커(길이 약 10~30m)를 삽입한 후, 그라우트(물+시멘트)하고 양생 기간을 거친 후, 구조물(벽체)과 앵커를 고정하고, 프리스트레스(인장, 약 40~80ton)를 가해 안정시키는 순서로 시공이 이루어지고 있는데, 이는 순수하게 천공 단면적과 그라우트와의 마찰력만으로 인장력을 확보하게 되므로, 지층이 연약할 경우에는 마찰력이 떨어져 인장력 확보가 어려운 관계로, 과다한 설계(수량 증가)와 보완(변형) 공법 병행 등으로 공사기간 지연과 공사비가 증대하는 것은 물론, 무리한 시공으로 상부 지반 변위(갈라짐 등)와 붕괴 등의 위험요인이 있었다. 또한 지압식 앵커로 명칭하여 암반층에 적용하는 영구앵커 종류가 있는데, 이는 타앵커보다 길이를 짧게 해도 인장력을 확보할 수 있다는 장점은 있으나, 연약층에서는 적용이 불가하고, 제품 단가가 너무 높으며, 시공 중에 추가 공정을 인위적으로 가해야 효과가 발휘되는 원리로 인해, 추가 공정에 대한 작업자의 기피 현상과 추가 공정을 배제하여 발생하는 문제점 등이 있어, 미비하게 명맥을 유지하며 적용되는 실정이다. 이처럼 기존에는 기술성과 경제성이 결여되어, 어떠한 지층에서도 원활한 시공성을 확보하기가 어려운 문제점이 있었다.In order to secure the tensile force, which is the most important reason why the ground anchoring method is classified into various types, the construction method and the material selection according to the ground conditions should be made. Currently, the construction order generally applied is perforated by the drilling equipment (about 105mm). Insert anchor (about 10 ~ 30m in length) inside the drilled hole, grout (water + cement), go through curing period, fix structure (wall) and anchor, prestress (tension, about 40 ~ 80ton) The construction is done in the order of stabilization, which is purely secured by the frictional force between the cross-sectional area and the grout. Therefore, when the layer is weak, the frictional force is difficult to secure the tensile force. Construction delays and construction costs are increased due to the parallel (deformation) construction method, etc. There were risk factors such as stomach upset and collapse. In addition, there is a type of permanent anchor that is applied to the rock bed named by acupressure anchor, which has the advantage of securing a tensile force even if the length is shorter than other anchors, but it is not applicable to the soft layer, the unit cost is too high, during construction Due to the principle that the effect is exerted only by artificially applying the additional process, there is a problem caused by the evasion of the operator for the additional process and the exclusion of the additional process, which is inadequately maintained while maintaining the context. As such, in the past, technical and economical lacks, and it is difficult to secure smooth construction in any strata.

본 발명은 상기와 같은 문제점을 감안하여 이루어진 것으로, 앵커의 선단부가 이물질에 묻혀 그라우트 압축 강도가 저하되는 것을 방지하며, 고형 분말인 고착제가 외부 충격에 의해 터지면서 믹싱 과정을 거치지 않고도 물과 반응하여 그라우트 강도를 확보하며, 별도의 추가 공정 없이 제품 자체 특성만으로 천공 홀에 삽입되는 앵커가 천공홀 바닥면에 부딪히는 충격에 의해 펼쳐진 확장핑거와 보조핑거가 암반층에서는 천공 지반에 강하게 끼이는 형태로 확장이 되고, 연약층에서는 천공 지반으로 강하게 파고들며 박히면서 확장하여 앵커와 지반과의 결속력을 높여줌과, 외부의 충격에 의해 펼쳐진 확장핑거와 보조핑거가 천공 지반 내면으로 깊숙이 박혀 앵커의 결속력을 높여줌과 동시에 확장핑거를 수평상태로 벌어지게 하여 확장이 완벽하게 이루어지도록 하는 것이 그 목적이다.The present invention has been made in view of the above problems, the tip of the anchor is buried in the foreign material to prevent the grout compressive strength is lowered, and the solid powder of the fixing agent burst by the external impact and reacts with water without going through the mixing process It secures grout strength, and the expansion finger and the auxiliary finger, which are unfolded by the impact that the anchor is inserted into the drilling hole by the product's own characteristics and hit the bottom surface of the drilling hole without any additional process, are strongly sandwiched in the drilling ground in the rock layer. In the soft layer, it digs into the perforated ground and expands and expands to enhance the bond between the anchor and the ground, and the extended finger and the auxiliary finger, which are spread by the external impact, are deeply embedded into the perforated ground to increase the bond strength of the anchor and at the same time expand. Spread your fingers horizontally to ensure perfect expansion It is the purpose of so luer.

상기와 같은 목적을 달성하기 위한 본 발명은 상면 중앙에 가이드축이 삽입되는 삽입공을 가지며 외면에 복수 개의 PC강재가 삽입하는 체결공을 형성하고, 체결공의 양측으로 상면에 힌지공을 가지면서 중간에 삽입홈을 갖는 받침판이 형성된 몸체와, 상기 몸체의 삽입홈에 체결되며 상측 외면에 날카로운 돌기가 형성되고 중앙에 삽입홈을 가지며 하측에 힌지공과 하단에 걸림턱을 가지는 확장핑거와, 상기 몸체의 삽입공에 삽입 설치되며 하측 단에 타격판이 형성된 지지봉을 형성하고, 지지봉의 상단에는 양측에 나사산을 갖는 연결봉을 체결하며, 연결봉의 상측에는 고 정판을 형성하고 고정판의 상측에는 경사면을 갖는 가이드판이 압축스프링으로 연결된 가이드축과, 상기 확장핑거가 수평 상태로 꺾이도록 설치되며 외주면에 복수 개의 결합돌기를 갖는 상측고정구와 내부로 삽입되도록 복수 개의 결합홈을 갖는 하측연결구의 외면에 압축스프링이 설치된 중심축으로 연결하고, 상단이 하측연결구의 결합홈에 설치되고 하단이 확장핑거의 삽입홈에 설치되는 링크바를 설치하며, 하단이 링크바의 하측 양쪽 면에 밀착 설치되며 상단은 상측고정구의 결합돌기에 설치되는 가이드바를 갖는 확장핑거이송구;로 구성한다.The present invention for achieving the above object has a guide hole is inserted into the center of the upper surface to form a fastening hole for inserting a plurality of PC steel material on the outer surface, while having a hinge hole on the upper surface on both sides of the fastening hole A body having a support plate having an insertion groove in the middle thereof, fastened to the insertion groove of the body, and having a sharp protrusion formed on the upper outer surface thereof, having an insertion groove in the center, a hinge finger at the lower side, and a locking jaw at the bottom thereof, and the body The support rod is inserted into the insertion hole of the lower end to form a support rod formed with a striking plate, fastening the connecting rod having a screw thread on both sides at the upper end of the support rod, a guide plate having a fixed plate on the upper side of the connecting rod and an inclined surface on the upper side of the fixing plate A guide shaft connected by a compression spring and the extension finger are installed to be bent in a horizontal state, and a plurality of engaging projections on an outer circumferential surface thereof. It is connected to the center shaft is installed on the outer surface of the lower connector having a plurality of coupling grooves to be inserted into the upper fixture and the inside, the upper end is installed in the coupling groove of the lower connector and the lower end is installed in the insertion groove of the expansion finger Link bar is installed, the lower end is installed in close contact with both sides of the lower side of the link bar and the upper end is extended finger feed port having a guide bar installed on the engaging projection of the upper fixture.

본 발명은 별도의 추가 공정 없이 제품 자체 특성만으로 천공 홀에 삽입되는 앵커가 천공홀 바닥면에 부딪히는 충격에 의해 펼쳐진 확장핑거와 보조핑거가 암반층에서는 천공 지반에 강하게 끼이는 형태로 확장이 되고, 연약층에서는 천공 지반으로 강하게 파고들며 박히면서 확장하여 앵커와 지반과의 결속력을 높여주고, 외부의 충격에 의해 벌어지는 확장핑거와 보조핑거가 천공 지반 내면으로 깊숙이 박혀 앵커의 결속력을 높여줌과 동시에 확장핑거를 수평상태로 벌어지게 하여 확장이 완벽하게 이루어지는 장점이 있다.According to the present invention, the expansion finger and the auxiliary finger that are unfolded by the impact that the anchor is inserted into the drilling hole by the impact of the product itself without any additional process are hit by the bottom surface of the drilling hole are expanded in the form of being strongly sandwiched in the perforated ground in the rock layer. In the perforated ground, it digs into the perforated ground and expands to increase the cohesion between the anchor and the ground, and the expansion finger and the auxiliary finger, which are caused by external impacts, are deeply embedded into the perforated ground to increase the cohesion of the anchor and at the same time, expand the horizontal finger. There is an advantage that the expansion is perfected by opening the state.

또한, 본 발명은 앵커의 선단부에 위치한 고형 분말인 고착제가 외부 충격에 의해 터지면서 믹싱 과정을 거치지 않고도 물과 반응하여 그라우트 강도를 확보하는 장점이 있다.In addition, the present invention has the advantage of securing the grout strength by reacting with water without going through the mixing process while the fixing agent is a solid powder located at the tip of the anchor by the external impact.

또, 본 발명은 암반층(전석, 풍화암, 연암, 경암)은 물론 연약지반(실트, 매 립, 모래, 자갈, 풍화토) 등의 정착 지반과 피압수 층에서 별도의 추가 공정 없이 시공하여 인장력을 확보할 수 있으며, 설계 및 시공시 정착장 길이를 기존 앵커보다 짧게 할 수 있으므로 자재비와 시공비를 절감할 수 있으며, 인접 대지 침범으로 인한 대민, 대관 문제에 대응할 수 있다.In addition, the present invention to secure the tensile strength by installing in the sedimentation ground and the water-receiving layer, such as rock bed (stone, weathered rock, soft rock, hard rock), as well as soft ground (silt, landfill, sand, gravel, weathered soil), etc. In the design and construction, the length of the anchorage can be shorter than that of the existing anchor, which can reduce the material cost and construction cost, and can cope with public and loan problems caused by adjacent land invasion.

이하, 본 발명을 실현하기 위한 지압식 확장형 그라운드 앵커 구조에 대하여 상세히 설명한다.Hereinafter, the acupressure extended ground anchor structure for realizing the present invention will be described in detail.

첨부된 도면 도 1 내지 도 3 본 발명의 전체 구성을 나타낸 도면이며, 이의 도면 중 부호 100은 본 발명의 지압식 확장형 앵커의 본체를 나타내고 있다.1 to 3 are views showing the overall configuration of the present invention, in which reference numeral 100 denotes the main body of the acupressure extended anchor of the present invention.

상기 본체(100)는 복수 개의 확장핑거(20)가 회전 가능하게 설치되는 몸체(10)와, 상기 몸체(10)의 중앙에 설치되어 외부의 충격에 의해 상측으로 이동하면서 확장핑거(20)가 외부로 벌어지면서 확장되도록 하는 가이드축(30)과, 확장핑거(20)를 수직 상태까지 꺾이면서 벌어지도록 하는 확장핑거이송구(70)로 구성한다.The main body 100 includes a body 10 in which a plurality of expansion fingers 20 are rotatably installed, and the expansion finger 20 is installed at the center of the body 10 and moves upward by an external impact. It consists of a guide shaft (30) to be expanded while opening to the outside, and an expansion finger feed port (70) to be opened while bending the expansion finger 20 to the vertical state.

상기 몸체(10)는 첨부된 도면 도 4 및 도 5에서 보는 바와 같이 금속제인 원형 판으로 이루어져 있으며 중앙에 가이드축(30)이 삽입되는 삽입공(11)을 형성하고, 외면에는 삽입공(11)을 중심으로 45도 각도마다 PC강재(90)가 삽입되는 체결공(12)을 형성하고, 체결공(12)의 양측에는 상향으로 돌출되면서 상측에 서로 관통하는 힌지공(13)을 갖는 받침판(14)을 형성한다.The body 10 is made of a circular plate made of metal as shown in the accompanying drawings, Figures 4 and 5 and forms an insertion hole 11 is inserted into the guide shaft 30 in the center, the insertion hole 11 on the outer surface Support plate 12 having a fastening hole 12 is inserted into the PC steel 90 is inserted at every 45 degrees angle, and protruding upward on both sides of the fastening hole 12, the support plate having a hinge hole 13 penetrating each other on the upper side (14) is formed.

이때, 양쪽 받침판(14)의 사이 공간으로는 삽입홈(15)이 형성되며, 체결공(12)의 하측 면에는 체결공(12) 보다 지름이 넓은 결합공(12a)이 턱이 지게 형성한다.At this time, the insertion groove 15 is formed in the space between the two supporting plates 14, the coupling hole 12a having a larger diameter than the fastening hole 12 is formed in the lower surface of the fastening hole 12 to the jaw. .

상기 PC강재(90)가 체결되는 체결공(12)의 하측에 형성된 결합공(12a)으로 금속재질로 이루어지면서 PC강재(90)를 보호하는 보호관(19)을 삽입하고 몸체의 측면에 형성된 구멍(19a)으로 고정핀(19b)을 체결하여 고정한다.A hole formed in the side of the body and inserting a protective tube 19 to protect the PC steel 90 while being made of a metal material as a coupling hole (12a) formed on the lower side of the fastening hole 12 to which the PC steel 90 is fastened Fix it by fastening the fixing pin (19b) with (19a).

상기 확장핑거(20)은 상측 외면에 날카로운 돌기(21)가 다수 개 형성되고 내면에는 배가 나온 경사면(22)을 가지며, 하측에는 힌지(29)가 삽입되는 힌지공(24)을 형성하고 하측 단 전방 면에는 걸림턱(26)이 형성된 체결판(27)을 갖는다.The expansion finger 20 has a plurality of sharp protrusions 21 formed on the upper outer surface and the inclined surface 22 having a ship on the inner side, the lower side forms a hinge hole 24 is inserted into the hinge 29 and the lower end The front face has a fastening plate 27 with a locking projection 26 formed thereon.

상기 확장핑거(20)의 하측에 형성된 체결판(27)은 몸체(10)의 받침판(14) 사이 공간인 삽입홈(15)으로 삽입한 후에 측면에서 힌지(29)를 힌지공(24)으로 삽입하여 체결하므로 확장핑거(20)가 삽입홈(15) 내에서 회동 가능하도록 체결한다.The fastening plate 27 formed at the lower side of the expansion finger 20 is inserted into the insertion groove 15, which is a space between the support plates 14 of the body 10, and then the hinge 29 from the side to the hinge hole 24. Insert and fasten so that the expansion finger 20 can be rotated in the insertion groove (15).

상기 가이드축(30)은 하측 단에 원형의 타격판(31)이 형성하고 상면 내부에는 나사공(32)이 형성된 지지봉(33)을 형성한다. 그리고 지지봉(33)의 상단에는 양측 단에 나사산(34)을 갖는 연결봉(35)의 하측 단을 나사 결합하고, 연결봉(35)의 상측에는 원형으로 형성되고 하측 외면에 경사면을 갖는 고정판(36)을 결합한다.The guide shaft 30 is formed on the lower end of the circular impact plate 31 is formed and the upper surface forms a support rod 33 formed with a screw hole 32. And the upper end of the support rod 33 is screwed to the lower end of the connecting rod 35 having a screw thread 34 at both ends, and the fixing plate 36 formed in a circular shape on the upper side of the connecting rod 35 and having an inclined surface on the lower outer surface To combine.

이때, 고정판(36)의 상측에는 외면에 압축스프링(38)이 설치된 고정축(39)을 형성하고 그 상단에는 외면에 경사면(37a)을 갖는 가이드판(37)을 형성한다.At this time, the upper side of the fixed plate 36 is formed with a fixed shaft 39 is provided with a compression spring 38 on the outer surface and the guide plate 37 having an inclined surface 37a on the outer surface is formed.

상기 가이드축(30)의 하측 단에 형성된 타격판(31)의 하측 면에는 복수 개의 결합 돌기(31a)를 형성하고, 결합 돌기(31a)로 고착제(85)를 고정 설치한다.A plurality of coupling protrusions 31a are formed on the lower surface of the striking plate 31 formed at the lower end of the guide shaft 30, and the fixing agent 85 is fixed to the coupling protrusion 31a.

상기 고착제(85)는 종이 내부에 원형 포장되어 있으며, 외부의 충격에 의해 터지면 물과 혼합되지 않은 상태에서도 물을 흡수하여 단시간 내에 강도를 발현하는 혼화제 역할을 한다. 또, 외부 재질이 종이로 포장되어 있으므로 터지지 않는 상태에서도 물을 흡수하여 굳어진다.The fixing agent 85 is circularly packaged inside the paper, and acts as an admixture to express strength within a short time by absorbing water even when it is not mixed with water when burst by an external impact. In addition, since the outer material is wrapped in paper, it absorbs water and hardens even when it is not broken.

상기 가이드축(30)은 몸체(10)의 중앙에 형성된 삽입공(11)에 삽입 설치되며 하측의 원형 고정판(36) 외면이 확장핑거(20)의 하측에 형성된 걸림턱(26)의 하측 면과 서로 맞닿아 있는 상태로 결합하며, 상단의 가이드판(37)은 확장핑거(20)의 배면에 형성된 경사면(22)과 맞닿은 상태를 유지하게 된다.The guide shaft 30 is inserted into the insertion hole 11 formed in the center of the body 10 and the outer surface of the lower circular fixing plate 36 is formed on the lower side of the locking projection 26 formed on the lower side of the expansion finger 20 It is coupled in contact with each other, the upper guide plate 37 is to maintain the contact with the inclined surface 22 formed on the back of the expansion finger (20).

상기 확장핑거이송구(70)는 상단 외주면에 외부로 돌출되면서 삽입공(51a)을 갖는 복수 개의 결합돌기(51)가 형성된 원형 판의 상측고정구(52)를 형성하고 이와 대응되도록 하측으로 내부로 삽입되도록 복수 개의 결합홈(53)을 갖는 원통형의 하측연결구(54)를 형성한다. 이때, 결합홈(53)에도 삽입공(51a)이 형성되어 있다.The expansion finger feed port 70 is formed on the upper outer peripheral surface of the circular plate formed with a plurality of engaging projections 51 having an insertion hole (51a) having an insertion hole (51a) and inserted into the lower side so as to correspond to this A cylindrical lower connector 54 having a plurality of coupling grooves 53 to be formed. At this time, the insertion hole 51a is also formed in the coupling groove 53.

그리고 상측고정구(52)와 하측연결구(54)는 그 중심이 중심축(56)으로 연결되어 있고 그 외면에 압축스프링(55)을 장착한다.And the upper fixture 52 and the lower connector 54 is the center thereof is connected to the central axis 56 and the compression spring 55 is mounted on the outer surface.

상기 링크바(50)는 금속 재질로 이루어져 있고 상,하단에 구멍(50a,50b)과 하측에 구멍(50c)을 가지며, 하단은 확장핑거(20)의 삽입홈(23)에 삽입된 상태에서 힌지축을 확장핑거(20)의 삽입홈(23)에 형성된 구멍과 링크바(50)의 구멍(50b)을 일치시킨 후에 삽입하여 체결한다.The link bar 50 is made of a metal material and has holes 50a and 50b at the upper and lower ends and holes 50c at the lower side, and the lower end is inserted into the insertion groove 23 of the expansion finger 20. The hinge shaft is inserted into and fastened after matching the hole formed in the insertion groove 23 of the expansion finger 20 with the hole 50b of the link bar 50.

그리고 링크바(50)의 상단은 하측연결구(54)의 결합홈(53)에 삽입한 상태에서 힌지축을 하측연결구(54)의 결합홈(53)에 형성된 구멍과 링크바(50)의 구 멍(50a)을 일치시킨 후에 삽입하여 체결한다.And the upper end of the link bar 50 is a hole of the link bar 50 and the hole formed in the coupling groove 53 of the lower connector 54 in the hinge shaft in the state inserted into the coupling groove 53 of the lower connector (54). Insert and tighten after 50a is matched.

그런 다음 상기 링크바(50)의 하측에 형성된 구멍(50c) 양측으로 가이드바(60)의 하단에 형성된 구멍(60b)과 일치되도록 밀착시킨 후에 힌지축을 삽입하여 체결한다.Then, the two sides of the hole 50c formed at the lower side of the link bar 50 are brought into close contact with the hole 60b formed at the lower end of the guide bar 60, and then the hinge shaft is inserted and fastened.

그리고 가이드바(60)의 상단에 형성된 구멍(60a)은 상측고정구(52)의 결합돌기(51)에 형성된 삽입공(51a)과 일치시킨 후에 힌지축을 삽입하여 체결한다.And the hole (60a) formed in the upper end of the guide bar 60 is matched with the insertion hole (51a) formed in the engaging projection 51 of the upper fixing tool 52 and then fastened by inserting the hinge shaft.

또, 링크바(50)와 가이드바(60)는 첨부된 도면 도 6에서 보는 바와 같이 외면에 날카로운 톱날(65)을 다수 개 형성하여 사용한다.In addition, the link bar 50 and the guide bar 60 are used by forming a plurality of sharp saw blade 65 on the outer surface as shown in Figure 6 attached.

그리고 중심축(56)의 외면에 설치된 압축 스프링(55) 대신 에어 실린더나 유압 실린더를 설치하여 사용할 수 있다.And instead of the compression spring 55 installed on the outer surface of the central shaft 56 can be used by installing an air cylinder or a hydraulic cylinder.

또한, 상기 확장핑거(20)의 결합홈(23)의 전방으로는 첨부된 도면 도 7 및 도 8에서 보는 바와 같이 전방 면에 다수 개의 톱날(81)이 형성된 보조핑거(80)를 결합하여 사용한다.In addition, the front of the coupling groove 23 of the expansion finger 20, as shown in the accompanying drawings, Figure 7 and 8 used to combine the auxiliary finger 80 formed with a plurality of saw blades 81 on the front surface do.

상기와 같이 본 발명의 첨부된 도면 도 9에서 보는 바와 같이 천공된 내부로 볼(110)을 삽입한 후 고착제(85)를 삽입하고 그 다음에 확장형 앵커(100)를 삽입한다.As shown in the accompanying drawings of the present invention as shown in FIG. 9, the ball 110 is inserted into the perforated interior, and then the fixing agent 85 is inserted, followed by the expansion anchor 100.

상기 볼(110)은 관통되는 다수 개의 구멍(111)이 형성되어 있어 외면에 외부로 돌출되는 다수 개의 돌기(112)를 갖는 것으로, 천공(3) 내부로 삽입시 발생할 수 있는 부력 등에 대응함은 물론 가이드축(30)의 타격판(31)에 형성된 결합 돌기(31a)와 볼(110)에 형성된 돌기(112)가 고착제(85)와 부딪치면서 쉽고 용이하게 터지도록 하는 역할을 한다.The ball 110 has a plurality of holes 111 through which the ball 110 has a plurality of protrusions 112 protruding to the outside, and corresponds to buoyancy that may occur when the ball is inserted into the perforation 3. The engaging protrusion 31a formed on the striking plate 31 of the guide shaft 30 and the protrusion 112 formed on the ball 110 collide with the fixing agent 85 and serve to explode easily and easily.

또한, 천공(3) 내부 선단에 슬러지(sludge)가 남아 있는 경우, 작은 주입 압력으로 선단부터 채워지는 그라우팅으로는 슬러지를 밀어내지 못하여 확장형 앵커(100)의 선단부가 슬러지에 묻힌 상태에서 그라우트가 되거나, 그라우트와 슬러지가 혼합(mixer)되어 전방부의 그라우트 강도가 저하되는 것을 방지한다.In addition, when sludge remains in the inner end of the perforation 3, grouting from the distal end with a small injection pressure does not push the sludge and grouts the distal end portion of the expandable anchor 100 buried in the sludge. The grout and the sludge are mixed to prevent the grout strength of the front part from being lowered.

상기 확장형 앵커(100)는 앵커의 무게와 천공(3)의 각도를 따라 미끄러지듯이 삽입되어 가이드축(30)의 타격판(31)이 볼(110)의 돌기(112)와 충돌하게 된다.The expandable anchor 100 is inserted like a slide along the weight of the anchor and the angle of the perforation 3 so that the striking plate 31 of the guide shaft 30 collides with the protrusion 112 of the ball 110.

이때, 가이드축(30)이 상측으로 이동하면서 고정판(36)이 맞닿아 있는 확장핑거(20)의 걸림턱(26)을 상측으로 밀면서 이동하게 되므로 확장핑거(20)가 외부로 벌어지게 된다. At this time, since the guide shaft 30 is moved upward while the locking jaw 26 of the expansion finger 20 in contact with the fixing plate 36 is pushed upward, the expansion finger 20 is opened to the outside.

이때, 상기 확장핑거(20)의 삽입홈(23)과 하측연결구(54)의 결합홈(53)에 결합된 링크바(50)가 하측으로 따라 내려오면서 벌어지게 되고, 링크바(50)에 연결된 가이드바(60)도 외부로 벌어짐과 동시에 압축되어 있던 압축스프링(55)이 해지되면서 확장핑거(20)를 90도 가까이 꺾이도록 힘을 가해 확장핑거(20)의 날카로운 돌기(21)가 천공 내면 지반에 더욱 견고하게 박혀 앵커의 지반 결속력을 높여준다.At this time, the link bar 50 coupled to the insertion groove 23 of the expansion finger 20 and the coupling groove 53 of the lower connector 54 is opened while descending to the lower side, the link bar 50 The guide bar 60 is also opened to the outside and at the same time the compression spring (55) that is compressed is released, applying a force to bend the expansion finger 20 close to 90 degrees, the sharp projection 21 of the expansion finger 20 perforated It is more firmly embedded in the internal ground, increasing the anchoring force of the anchor.

또한, 확장핑거(20)에 설치된 보조핑거(80)가 천공 내부 지반 면에서, 주로 암반층에서는 천공 지반에 강하게 끼이는 형태로 확장이 되고, 연약층에서는 천공 지반으로 강하게 파고들며 박히면서 확장됨과 동시에 앵커가 견고하게 지반과 결합되도록 한다.In addition, the auxiliary finger 80 installed in the expansion finger 20 is expanded in the form of being strongly pinched in the perforated ground in the inner rock surface, mainly in the rock layer, and in the soft layer, while being dug into the perforated ground, it is expanded and anchored at the same time. Make sure that it is firmly combined with the ground.

도 1은 본 발명의 구성을 나타낸 사시도1 is a perspective view showing the configuration of the present invention

도 2~3은 본 발명의 구성을 나타낸 측단면도 2 to 3 are side cross-sectional views showing the configuration of the present invention.

도 4~5는 본 발명의 몸체의 구성을 나타낸 평면도 및 정면도4 to 5 are a plan view and a front view showing the configuration of the body of the present invention

도 6~8은 본 발명의 다른 구성을 나타낸 측면도6 to 8 is a side view showing another configuration of the present invention

도 9는 본 발명의 작동 상태를 나타낸 단면도9 is a cross-sectional view showing an operating state of the present invention.

♣도면의 주요 부분에 대한 부호의 설명♣♣ Explanation of symbols for the main parts of the drawing

100: 본체 10: 몸체100: body 10: body

11,51a,121: 삽입공 12: 체결공11, 51a, 121: insertion hole 12: fastening hole

13,24: 힌지공 14: 받침판13, 24: hinge 14: support plate

15: 삽입홈 19: 보호관15: Insertion groove 19: Protective tube

20: 확장핑거 21: 돌기20: expansion finger 21: protrusion

22,37a: 경사면 23: 삽입홈22,37a: inclined surface 23: insertion groove

26: 걸림턱 27: 체결판 30: 가이드축 31: 타격판 31a,51: 결합돌기 32: 나사공26: engaging jaw 27: fastening plate 30: guide shaft 31: impact plate 31a, 51: engaging projection 32: screw hole

삭제delete

삭제delete

33: 지지봉 34: 나사산33: support rod 34: thread

35: 연결봉 36: 고정판35: connecting rod 36: fixed plate

37: 가이드판 38,55: 압축스프링
39: 고정축 50: 링크바 37: guide plate 38,55: compression spring
39: fixed shaft 50: link bar

삭제delete

52: 상측고정구 53: 결합홈
53a: 삽입공52: upper fixture 53: coupling groove
53a: insertion hole

54: 하측연결구 56: 중심축54: lower connector 56: central axis

60: 가이드바 70: 확장핑거이송구60: guide bar 70: expansion finger feeder

85: 고착제 110: 볼85: fixing agent 110: ball

Claims (3)

상면 중앙에 가이드축이 삽입되는 삽입공을 가지며 외면에 복수 개의 PC강재가 삽입하는 체결공을 형성하고, 체결공의 양측으로 상면에 힌지공을 가지면서 중간에 삽입홈을 갖는 받침판이 형성된 몸체;A body having an insertion hole into which a guide shaft is inserted in the center of the upper surface and a fastening hole into which a plurality of PC steels are inserted into the outer surface, and having a hinge hole on the upper surface to both sides of the fastening hole, and having a support plate having an insertion groove in the middle thereof; 상기 몸체의 삽입홈에 체결되며 상측 외면에 날카로운 돌기가 형성되고 중앙에 삽입홈을 가지며 하측에 힌지공과 하단에 걸림턱을 가지는 확장핑거;An expansion finger having a sharp protrusion formed on an upper outer surface of the body and having an insertion groove at a center thereof, and having a hinge hole at a lower side and a locking jaw at a lower end thereof; 상기 몸체의 삽입공에 삽입 설치되며 하측 단에 타격판이 형성된 지지봉을 형성하고, 지지봉의 상단에는 양측에 나사산을 갖는 연결봉을 체결하며, 연결봉의 상측에는 고정판을 형성하고 고정판의 상측에는 경사면을 갖는 가이드판이 압축스프링으로 연결된 가이드축;The support rod is inserted into the insertion hole of the body and forms a support rod having a striking plate formed at a lower end thereof, and fastens a connecting rod having a screw thread on both sides at the upper end of the support rod. A guide shaft having plates connected by compression springs; 상기 확장핑거가 수평 상태로 꺾이도록 설치되며 외주면에 복수 개의 결합돌기를 갖는 상측고정구와 내부로 삽입되도록 복수 개의 결합홈을 갖는 하측연결구의 외면에 압축스프링이 설치된 중심축으로 연결하고, 상단이 하측연결구의 결합홈에 설치되고 하단이 확장핑거의 삽입홈에 설치되는 링크바를 설치하며, 하단이 링크바의 하측 양쪽 면에 밀착 설치되며 상단은 상측고정구의 결합돌기에 설치되는 가이드바를 갖는 확장핑거이송구;로 구성함을 특징으로 하는 지압식 확장형 그라운드 앵커 구조.The expansion finger is installed to be bent in a horizontal state and connected to the upper shaft with a plurality of engaging projections on the outer circumferential surface and a central axis installed with a compression spring on the outer surface of the lower connector having a plurality of coupling grooves to be inserted into the inside, the upper end is lower Install the link bar installed in the coupling groove of the connector, the bottom is installed in the insertion groove of the expansion finger, the bottom is installed in close contact with both sides of the lower side of the link bar, the upper end of the extension finger having a guide bar installed on the engaging projection of the upper fixture Shiatsu expandable ground anchor structure, characterized in that consisting of. 제1항에 있어서,The method of claim 1, 상기 링크바와 가이드바의 외면에 날카로운 톱날이 다수 개 형성한 것을 포함함을 특징으로 하는 지압식 확장형 그라운드 앵커 구조.Acupressure extended ground anchor structure comprising a plurality of sharp saw blade formed on the outer surface of the link bar and the guide bar. 제1항에 있어서,The method of claim 1, 상기 확장핑거의 선단으로 전방에 다수 개의 톱날이 형성된 보조핑거를 결합하여 사용하는 것을 포함함을 특징으로 하는 지압식 확장형 그라운드 앵커 구조.Acupressure extended ground anchor structure characterized in that it comprises using a combination of a plurality of saw fingers formed in front of the expansion finger to the front end.
KR1020080031416A 2008-04-04 2008-04-04 Acupressure Expandable Ground Anchor Structure KR100855381B1 (en)

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KR100954613B1 (en) 2008-08-20 2010-04-28 이인귀 Expandable ground anchor
KR101129401B1 (en) * 2009-08-28 2012-03-26 주식회사 엔에이건설 Anchor for reinforcing a slope
KR101165692B1 (en) * 2011-10-27 2012-07-18 한지호 Multipurpose anchor and construction method thereof
KR101165689B1 (en) * 2011-10-27 2012-07-20 한지호 Multipurpose anchor and construction method thereof
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CN107489145A (en) * 2017-07-01 2017-12-19 中建三局集团有限公司 A kind of tool-type U-shaped anti-float anchor rod reinforcing bar setting tool
KR101864383B1 (en) * 2016-07-05 2018-07-04 형제기초건설(주) Earth anchor of sheeting tmbering
CN114892655A (en) * 2022-04-29 2022-08-12 中交一公局集团有限公司 Anchor pipe assembly
CN115638338A (en) * 2022-10-24 2023-01-24 云南电网有限责任公司电力科学研究院 Open-air monitoring support

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KR100954613B1 (en) 2008-08-20 2010-04-28 이인귀 Expandable ground anchor
KR101129401B1 (en) * 2009-08-28 2012-03-26 주식회사 엔에이건설 Anchor for reinforcing a slope
KR101165692B1 (en) * 2011-10-27 2012-07-18 한지호 Multipurpose anchor and construction method thereof
KR101165689B1 (en) * 2011-10-27 2012-07-20 한지호 Multipurpose anchor and construction method thereof
KR20160133638A (en) 2015-05-13 2016-11-23 윤석진 Structure of ground rivet and construction method thereof
KR101864383B1 (en) * 2016-07-05 2018-07-04 형제기초건설(주) Earth anchor of sheeting tmbering
CN107489145A (en) * 2017-07-01 2017-12-19 中建三局集团有限公司 A kind of tool-type U-shaped anti-float anchor rod reinforcing bar setting tool
CN114892655A (en) * 2022-04-29 2022-08-12 中交一公局集团有限公司 Anchor pipe assembly
CN114892655B (en) * 2022-04-29 2024-03-08 中交一公局集团有限公司 Anchor tube assembly
CN115638338A (en) * 2022-10-24 2023-01-24 云南电网有限责任公司电力科学研究院 Open-air monitoring support

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