KR20110092459A - The tunnel construction method and the installation for which point moving roof cell was used - Google Patents

The tunnel construction method and the installation for which point moving roof cell was used Download PDF

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KR20110092459A
KR20110092459A KR1020100011895A KR20100011895A KR20110092459A KR 20110092459 A KR20110092459 A KR 20110092459A KR 1020100011895 A KR1020100011895 A KR 1020100011895A KR 20100011895 A KR20100011895 A KR 20100011895A KR 20110092459 A KR20110092459 A KR 20110092459A
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tip
tunnel
cell
roof
cells
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KR1020100011895A
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Korean (ko)
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KR101206996B1 (en
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백용기
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주식회사 특수건설
교쿠토코겐콘크리토신코가부시끼가이샤
우에무라기켄코교가부시끼가이샤
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/005Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries by forcing prefabricated elements through the ground, e.g. by pushing lining from an access pit
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/04Driving tunnels or galleries through loose materials; Apparatus therefor not otherwise provided for
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10Making by using boring or cutting machines

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

PURPOSE: A tunnel construction apparatus and method using a leading end loop cell and a leading end shoe are provided to install tunnel members to the designated location stably without using pipe loops. CONSTITUTION: A tunnel construction method is as follows. Horizontal and vertical frames(70) are located to install a leading end shoe(20). Leading end loop cells of a box shape are arranged on the top of the leading end shoe to correspond to a necessary part of a designated tunnel. The leading end loop cells are successively connected and inserted to the ground. The leading end of a tunnel member(10) is transferred close to the tail end of the leading end loop cell. A pressure jack(80) is installed between the leading end loop cell and the tunnel member. The leading end loop cell is propelled to the length of a sliding surface secured according to the height of the tunnel member.

Description

선단 루프셀과 선단슈를 이용한 터널 구축장치 및 방법{The tunnel construction method and the installation for which point moving roof cell was used}The tunnel construction method and the installation for which point moving roof cell was used}

본 발명은 선단 루프셀과 선단슈를 이용한 터널 구축장치 및 방법에 관한 것으로(통칭하여 MRC공법이라 함: Moving Roof Cell Method), 특히 선로나 도로 하부에 열차나 자동차의 운행과 보행자들의 통행에 지장을 주지 않고, 직접 선단 루프셀과 선단슈를 이용하여 구조물을 지중에 설치하는 터널 구축장치 및 방법에 관한 것이다.The present invention relates to a tunnel construction device and method using a tip roof cell and a tip shoe (commonly referred to as MRC construction method: Moving Roof Cell Method), in particular, to interfere with the operation of trains or cars and the pedestrians in the track or under the road. The present invention relates to a tunnel construction apparatus and method for installing a structure underground using a front end roof cell and a tip shoe.

일반적으로 장거리 터널 굴착공법은 NATM(New Austrian Tunneling Method), TBM(Tunnel Boring Machine), SHIELD 등의 공법이 주로 선호되고 있으며, 단거리 터널굴착공법의 경우에는 비개착공법으로는 파이프루프(pipe roof)공법, 프론트 잭킹(Front jacking)공법 등이 주로 사용되었으나, 최근 국내에는 TRCM(Tubular Roof Construction Method), NTR(New Tubular Roof Method), STS(Steel Tube Slab), PRS(Pipe Roof Structures), U-PRS(Upgrade Pipe Roof Structures Method) 등의 공법이 개발되어 왔다.In general, the long-distance tunnel excavation method is mainly preferred methods such as NATM (New Austrian Tunneling Method), TBM (Tunnel Boring Machine), SHIELD, etc. In the case of short-distance tunnel excavation method, the non-adhesive method is a pipe roof (pipe roof) The construction method and the front jacking method were mainly used, but recently in Korea, the tubular roof construction method (TRCM), new tubular roof method (NTR), steel tube slab (STS), pipe roof structures (PRS), and U- Methods such as the Upgrade Pipe Roof Structures Method (PRS) have been developed.

단거리를 상부의 철도나 도로 하부에 비개착공법으로 지하 보차도, 공동구, 상하수도, 전력구 등의 터널을 구축하는 목적으로 상기의 공법이 적용되고 있다. The above-described method is applied for the purpose of constructing tunnels such as underground sidewalks, joint wards, water and sewage systems, and electric power wards by short-haul, non-opening methods on upper railroads and lower roads.

모든 공법이 각 공법상 차이는 있지만 강관을 지중에 설치하여 그 강관이 상부의 활하중과 사하중을 받아주는 가설 지보재의 역할을 하며 지중에 목적한 구조물이 완성되면 지중에 매몰시킨다.Although all the construction methods are different in each construction method, steel pipes are installed in the ground, and the steel pipes serve as temporary supporting materials to receive the live and dead loads of the upper part and are buried in the ground when the intended structure is completed.

즉, 공사하는 동안에는 상재하중을 받아주는 중요한 가설재의 역할을 하지만, 지중의 터널부재가 양생이 된 후에는 철거가 불가능한 지중의 지장물이 되고 있다.In other words, it acts as an important temporary material to receive the floor load during construction, but it becomes an obstacle in the ground where it is impossible to remove it after the underground tunnel member is cured.

위에 나열한 장거리, 단거리의 터널공법에서 터널부재의 시공방법의 차이점은 장거리 터널 공법 중 SHIELD(SEMI-SHIELD 포함)는 세그먼트, 추진관 단거리 터널 공법의 프론트 잭킹공법은 외부에서 제작한 프리캐스트 구조물을 지중에 설치하지만, NATM, TBM, TRCM, NTR, STS, PRS, U-PRS, 파이프루프공법 등은 내부 굴착 후 좁은 공간에서 터널부재를 현장 타설하여 제작하는 것에 근본적인 차이점이 있다.The difference between the construction method of the tunnel member in the long-distance and short-distance tunnel methods listed above is the segment of SHIELD (including SEMI-SHIELD) among the long-distance tunnel methods, and the front jacking method of the short-distance tunnel method of the propulsion pipes. However, NATM, TBM, TRCM, NTR, STS, PRS, U-PRS, pipe loop method, etc. are fundamentally different from the field casting of tunnel members in the narrow space after internal excavation.

여기서, 상기 프리캐스트 구조물이 현장 타설 구조물에 비해 양호한 품질을 만들 수 있고, 구조물의 내구성 또한 높다.Here, the precast structure can make a good quality compared to the in-site casting structure, the durability of the structure is also high.

현재, 프론트 잭킹공법에서 강관을 이용한 파이프루프의 경우 터널부재가 추진이나 견인될 위치 상부 및 측벽의 전체 거리에 설치하고 발진대에 선단슈 및 터널부재를 제작 양생한 후, 선단슈를 지중에 압입한 후 터널부재를 견인 및 추진하고 있다.Currently, in the case of pipe loops using steel pipes in the front jacking method, the tunnel members are installed at the entire distance of the upper and side walls where the tunnel member is to be propelled or towed, and the end shoes and tunnel members are manufactured and cured on the oscillation stage, and then the end shoes are pressed into the ground. The tunnel members are then towed and pushed.

또한, 프론트 잭킹공법에서 각관을 이용한 파이프루프의 경우 터널부재의 상부 슬래브 상단의 위치에 루프를 전체 거리에 설치한 후 발진대에 선단슈 및 터널부재를 제작 양생하여 선단슈를 지중에 압입하며 각관 파이프루프를 도달기지 쪽으로 밀어내면서 터널부재를 견인 및 추진하고 있다.In the case of pipe loops using square tubes in the front jacking method, the roof is installed at the upper end of the upper slab of the tunnel member over the entire distance, and then the tip shoe and tunnel member are manufactured and cured on the oscillation table to press the tip shoe into the ground. The tunnel member is towed and pushed while pushing the pipe loop toward the reach base.

여기서, 상기 선단슈는 터널부재 선단에 설치하여 지중에 압입한 후 각각의 선단슈에서 굴착하는 목적으로 사용하고 있다.Here, the tip shoe is installed at the tip of the tunnel member and press-fitted into the ground and used for the purpose of excavating from each tip shoe.

도 1은 종래의 강관루프를 이용한 프론트 잭킹공법을 도시한 종단면도이고, 도 2는 종래의 강관루프를 이용한 프론트 잭킹공법을 도시한 단면도이며, 도 3은 종래의 각관루프를 이용한 프론트 잭킹공법을 도시한 종단면도이며, 도 4는 종래의 각관루프를 이용한 프론트 잭킹공법을 도시한 단면도이다.1 is a longitudinal cross-sectional view showing a front jacking method using a conventional steel pipe loop, Figure 2 is a cross-sectional view showing a front jacking method using a conventional steel pipe loop, Figure 3 is a front jacking method using a conventional square pipe loop. 4 is a cross-sectional view showing a front jacking method using a conventional square tube loop.

상기한 종래의 프론트 잭킹공법은 터널부재 상부에 상재하중이 있을 경우 강관이나 각관을 미리 지중에 설치한 후 터널부재를 견인 및 압입을 하는 방식이다.According to the conventional front jacking method, when there is a load on the upper part of the tunnel member, the steel pipe or each tube is installed in the ground in advance, and then the tunnel member is pulled and pressed.

현재 프론트 잭킹공법에서 사용하는 파이프 루프의 역할은 상부하중(사하중+활하중)에 대처하여 견인시 구조물 상부의 지반의 급격한 붕락을 제어하는 목적의 가시설로 사용하고 있으며, 시공규모에 차이가 있으며 전체공사비의 20∼40%를 차지하고 있다.The role of the pipe loop used in the front jacking method is to be used as a temporary facility to control the rapid collapse of the ground at the top of the structure when it is towed by coping with the upper load (dead load + live load). Accounting for 20-40% of the total.

또한, 공사기간의 비중도 30% 정도를 차지하고 있는 주요 공정 중의 하나이다.In addition, the construction period is also one of the major processes accounting for about 30%.

한편, 타공법은 파이프 루프가 상재하중을 받친 상태에서 내부굴착을 종료한 후 구조물 제작 양생이 끝날 때까지의 가설지보 목적으로 사용하고 있다.On the other hand, the perforation method is used for the purpose of temporary construction until the end of the structure fabrication after the completion of the internal excavation in the state in which the pipe loop receives the load.

즉, 프론트 잭킹공법과 타 공법에서의 파이프 루프의 역할은 동일하나 프론트 잭킹공법에서는 구조물 굴착 시 전단면 슬라이딩면까지의 안전성 확보를 위하여 보조공법으로 사용하지만 타공법은 주공법으로 사용하는 것이 차이점으로 볼 수 있다. In other words, the role of pipe loop in front jacking method and other method is the same, but in front jacking method, it is used as auxiliary method to secure safety to shear sliding surface when excavating structure. can see.

따라서, 종래의 프론트 잭킹공법이나 타 공법에서는 파이프 루프가 전체 공사비의 20∼40%를 차지할 뿐만 아니라 공사기간의 비중도 30% 정도를 차지하고 있으므로 파이프 루프를 대체할 수 있는 새로운 공법에 대한 기술개발이 요구되고 있는 실정이다.Therefore, in the conventional front jacking method or other methods, not only pipe loops occupy 20-40% of the total construction cost, but also 30% of the construction period, so that technology development for a new method that can replace pipe loops It is a required situation.

이에, 본 발명은 상기한 바와 같은 제문제점을 해결하기 위해 안출된 것으로서, 선단슈를 이용하여 터널부재 외주부 내면에 파이프 루프 대용의 선단 루프셀을 슬라이딩면까지 확보하여 선단 루프셀과 선단슈를 설치하여 터널부재 견인이나 추진시 사용하면 종래의 파이프 루프의 사용 없이 터널부재를 목적한 위치까지 안전성을 확보한 상태에서 설치할 수 있도록 한 선단 루프셀과 선단슈를 이용한 터널 구축장치 및 방법을 제공하는데 그 목적이 있다.Therefore, the present invention has been made to solve the problems described above, by using the tip shoe to secure the tip loop cell for pipe loops to the sliding surface on the inner surface of the tunnel member outer periphery to install the tip roof cell and the tip shoe When the tunnel member is used for towing or propulsion, it provides a tunnel construction device and method using a tip roof cell and a tip shoe that allow the tunnel member to be installed in a state secured to a desired position without using a conventional pipe loop. There is a purpose.

상기한 목적을 달성하기 위한 본 발명에 따른 선단 루프셀과 선단슈를 이용한 터널 구축장치는 발진갱으로부터 도달갱까지 관통하게 지중에 압입되는 것으로, 종횡으로 프레임을 교차시켜 형성된 선단슈와; 상기 선단슈의 상면과 양측면에 소정길이 절단가능한 단면박스형으로 설치되는 선단 루프셀과; 상기 선단 루프셀의 후단에 설치되는 중압잭으로 구성됨을 특징으로 한다.Tunnel construction apparatus using a tip roof cell and a tip shoe according to the present invention for achieving the above object is to be pressed into the ground to penetrate from the oscillation gang to the reaching gang, the tip shoe formed by crossing the frame vertically and horizontally; A tip roof cell installed on the top and both sides of the tip shoe in a cross-sectional box shape capable of cutting a predetermined length; Characterized in that it consists of a medium-pressure jack installed on the rear end of the front end roof cell.

또한, 상기한 목적을 달성하기 위한 본 발명에 따른 선단 루프셀과 선단슈를 이용한 터널 구축방법은 종횡으로 프레임을 교차하여 선단슈를 설치하고, 상기 선단슈의 상부에 단면박스형의 선단 루프셀을 계획 터널 단면의 필요부분에 맞춰서 병렬시켜서 발진갱으로부터 순차 접속하면서 소요길이 지중에 압입하고, 이 선단 루프셀 후단에 터널부재 전단을 대향함과 동시에 근접시키고, 상기 선단 루프셀의 후단에 중압잭을 설치하여 터널부재의 높이에 따른 지반의 슬라이딩면을 확보한 길이만큼 선단 루프셀을 굴착하여 추진함을 특징으로 한다.In addition, the tunnel construction method using the tip roof cell and the tip shoe according to the present invention for achieving the above object is to install the tip shoe to cross the frame vertically and horizontally, the top end of the cross-sectional box type top roof cell In parallel with the required part of the planned tunnel section, it presses into the required length ground while connecting from the oscillation sequential in order. It installs and protrudes by protruding the tip roof cell by the length that secures the sliding surface of the ground according to the height of the tunnel member.

이상에서 설명한 바와 같이, 본 발명에 따른 선단 루프셀과 선단슈를 이용한 터널 구축장치 및 방법은 다음과 같은 효과가 있다.As described above, the tunnel construction apparatus and method using the tip roof cell and the tip shoe according to the present invention has the following effects.

첫째, 본 발명은 기존의 파이프루프의 시공이 불필요하므로 공사비 및 공사기간을 대폭적으로 감소시킬 수 있다.First, the present invention can significantly reduce the construction cost and construction period because the construction of the existing pipe loop is unnecessary.

둘째, 본 발명은 선단 루프셀의 재사용이 가능하고 선단슈와 터널부재를 분리하여 제작, 추진 및 견인하므로 선단슈와 구조물로 일체로 제작된 터널부재 구조물보다 손상을 최소로 할 수 있는 이점이 있다.Second, the present invention is capable of reusing the tip roof cell and separating, producing, pushing and towing the tip shoe and the tunnel member, thereby minimizing damage than the tunnel member structure integrally manufactured with the tip shoe and the structure. .

셋째, 본 발명은 터널부재 상부 슬래브가 높이에 맞추어 선단 루프셀을 시공하므로 계획고를 최대로 올려 시공할 수 있으므로 복토를 최소화할 수 있어 전체 공사비를 최소로 할 수 있고, 계획 종단 선형을 유리하게 할 수 있다. Third, in the present invention, since the upper slab of the tunnel member is constructed with a tip roof cell according to the height, it is possible to raise the construction height to the maximum, thereby minimizing cover soil, thereby minimizing the overall construction cost, and advantageously planning the linear termination. Can be.

넷째, 본 발명은 선단 루프셀의 공간 내에서 터널부재 견인, 압입시 필요에 따라 지반 침하 발생시 그라우팅 주입을 할 수 있어, 시방 규정 내로 안전하게 목적물을 설치할 수 있는 이점이 있다.Fourth, the present invention can grout injection when the ground subsidence occurs as needed when the tunnel member towing, indentation in the space of the tip roof cell, there is an advantage that can be installed safely in the specification.

도 1은 종래의 강관루프를 이용한 프론트 잭킹공법을 도시한 종단면도,
도 2는 종래의 강관루프를 이용한 프론트 잭킹공법을 도시한 단면도,
도 3은 종래의 각관루프를 이용한 프론트 잭킹공법을 도시한 종단면도,
도 4는 종래의 각관루프를 이용한 프론트 잭킹공법을 도시한 단면도,
도 5는 본 발명에 따른 선단 루프셀과 선단슈를 이용한 터널 굴착방법을 도시한 종단면도,
도 6은 본 발명에 선단 루프셀과 선단슈를 이용한 터널 굴착방법을 도시한 단면도,
도 7은 본 발명에 따른 선단 루프셀과 선단슈를 이용한 터널 굴착방법 중 선단 루프셀 프레임을 도시한 종단면도,
도 8은 본 발명에 따른 선단 루프셀과 선단슈를 이용한 터널 굴착방법 중 선단 루프셀 프레임을 도시한 단면도,
도 9는 본 발명에 따른 선단 루프셀과 선단슈를 이용한 터널 굴착장치의 추진 상세도.
1 is a longitudinal sectional view showing a front jacking method using a conventional steel pipe loop,
Figure 2 is a cross-sectional view showing a front jacking method using a conventional steel pipe loop,
Figure 3 is a longitudinal sectional view showing a front jacking method using a conventional square loop,
Figure 4 is a cross-sectional view showing a front jacking method using a conventional tube loop,
5 is a longitudinal cross-sectional view showing a tunnel excavation method using a tip roof cell and a tip shoe according to the present invention;
6 is a cross-sectional view showing a tunnel excavation method using a tip roof cell and a tip shoe in the present invention;
7 is a longitudinal cross-sectional view showing a tip roof cell frame in a tunnel excavation method using a tip roof cell and a tip shoe according to the present invention;
8 is a cross-sectional view showing a tip roof cell frame of the tunnel excavation method using the tip roof cell and the tip shoe according to the present invention;
Figure 9 is a detailed view of the propulsion of the tunnel excavation device using the tip roof cell and the tip shoe according to the present invention.

이하, 본 발명을 첨부한 예시도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

도 5는 본 발명에 따른 선단 루프셀과 선단슈를 이용한 터널 굴착장치를 도시한 종단면도이고, 도 6은 본 발명에 선단 루프셀과 선단슈를 이용한 터널 굴착장치를 도시한 단면도이며, 도 7은 본 발명에 따른 선단 루프셀과 선단슈를 이용한 터널 굴착장치중 선단 루프셀 프레임을 도시한 종단면도이며, 도 8은 본 발명에 따른 선단 루프셀과 선단슈를 이용한 터널 굴착장치중 선단 루프셀 프레임을 도시한 단면도이며, 도 9는 본 발명에 따른 선단 루프셀과 선단슈를 이용한 터널 굴착장치의 추진 상세도이다.Figure 5 is a longitudinal sectional view showing a tunnel excavation device using the tip roof cell and the tip shoe according to the present invention, Figure 6 is a cross-sectional view showing a tunnel excavation device using the tip loop cell and the tip shoe in accordance with the present invention, Figure 7 Is a longitudinal cross-sectional view showing a tip loop cell frame among the tunnel excavation device using the tip loop cell and the tip shoe according to the present invention, and FIG. 8 is a tip loop cell of the tunnel excavation device using the tip loop cell and the tip shoe according to the present invention. 9 is a cross-sectional view showing a frame, and FIG. 9 is a detailed view of a tunnel excavation apparatus using a tip roof cell and a tip shoe according to the present invention.

이들 도면에 도시된 바와 같이, 본 발명에 따른 선단 루프셀과 선단슈를 이용한 터널 구축장치는 발진갱으로부터 도달갱까지 관통하게 지중에 압입되는 것으로, 종횡으로 프레임(70)을 교차시켜 형성된 선단슈(20)와; 상기 선단슈(20)의 상면과 양측면에 소정길이 절단가능한 단면박스형으로 설치되는 선단 루프셀(61, 62)과; 상기 선단 루프셀(61, 62)의 후단에 설치되는 중압잭(80)으로 구성된다.As shown in these drawings, the tunnel construction device using the tip roof cell and the tip shoe according to the present invention is press-fitted into the ground to penetrate from the oscillation shaft to the arrival shaft, and the tip shoe formed by crossing the frame 70 vertically and horizontally. 20; Leading roof cells (61, 62) which are installed on the top surface and both side surfaces of the tip shoe (20) in a cross-sectional box shape capable of cutting a predetermined length; Consists of a medium pressure jack (80) installed at the rear end of the front end roof cells (61, 62).

또한, 본 발명에 따른 선단 루프셀과 선단슈를 이용한 터널 구축방법은 종횡으로 프레임(70)을 교차하여 선단슈(20)를 설치하고, 상기 선단슈(20)의 상부에 단면박스형의 선단 루프셀(61, 62)을 계획 터널 단면의 필요부분에 맞춰서 병렬시켜서 발진갱으로부터 순차 접속하면서 소요길이 지중에 압입하고, 이 선단 루프셀(61, 62) 후단에 터널부재(10) 전단을 대향함과 동시에 근접시키고, 상기 선단 루프셀(61, 62)의 후단에 중압잭(80)을 설치하여 터널부재(10)의 높이에 따른 지반의 슬라이딩면을 확보한 길이만큼 선단 루프셀(61, 62)을 굴착하여 추진한다.In addition, in the tunnel construction method using the tip roof cell and the tip shoe according to the present invention, the tip shoe 20 is installed by crossing the frame 70 vertically and horizontally, and the end loop of the cross-sectional box type is formed on the tip shoe 20. The cells 61, 62 are paralleled to the required portion of the planned tunnel cross section, and are press-fitted into the required length while sequentially connecting from the oscillation shaft, and the front end of the tunnel member 10 is opposed to the rear end of the tip roof cell 61, 62. And at the same time close to each other, the heavy end jack 80 is installed at the rear end of the front end roof cells 61 and 62 to secure the sliding surface of the ground according to the height of the tunnel member 10. Promote by excavating).

즉, 본 발명에 따른 선단 루프셀과 선단슈를 이용한 터널 구축방법은 파이프 루프(30)를 미리 설치하지 않고, 선단슈(20)에 슬라이딩면을 제어할 수 있는 선단 루프셀(61, 62)을 터널부재(10)를 견인 및 추진시 지중에 압입시킨 후, 터널부재(10)를 이어서 압입시키므로 별도의 파이프루프(30) 없이 시공할 수 있다.That is, in the tunnel construction method using the tip roof cell and the tip shoe according to the present invention, the tip roof cells 61 and 62 are capable of controlling the sliding surface on the tip shoe 20 without installing the pipe loop 30 in advance. After pressing the tunnel member 10 into the ground during towing and propulsion, the tunnel member 10 is subsequently press-fitted so that it can be installed without a separate pipe loop 30.

여기서, 선단 수평 루프셀(61)의 단면 분할은 인력으로 내부 굴착을 해야 하므로 단면 크기는 800*800mm 이상 크기로 터널부재(10)의 상부 슬래브폭을 분할하고, 선단 수직 루프셀(62)의 단면도 가이드 도갱(40) 상부부터 상부 선단 루프셀(62)의 하단까지 800*800mm 이상의 규모로 터널부재(10)의 외주면의 규모를 맞추어 분할 설치한다.Here, the cross section of the tip horizontal roof cell 61 is to be internally excavated by the attraction force, so the cross section size is 800 * 800 mm or more to divide the upper slab width of the tunnel member 10, and the tip vertical roof cell 62 Sectional guide guide rob 40 from the top to the lower end of the upper end roof cell 62 is installed in accordance with the scale of the outer peripheral surface of the tunnel member 10 in a size of 800 * 800mm or more.

또한, 선단 수평 루프셀(61)의 연장은 터널부재(10) 설치위치의 토질의 내부 마찰각(φ)에 따라 연장을 계산하며 선단 수직 루프셀(62)의 연장은 터널부재(10)의 높이에 따라 변동되므로 터널부재(10)의 높이와 굴착지반의 내부마찰각을 고려하여 계산에 따라 연장을 구하여 설치한다.In addition, the extension of the tip horizontal roof cell 61 calculates the extension according to the internal friction angle φ of the soil at the installation position of the tunnel member 10, and the extension of the tip vertical roof cell 62 is the height of the tunnel member 10. Since it varies according to the height of the tunnel member 10 and the internal friction angle of the excavation ground to obtain the extension according to the calculation to install.

즉, 상기 터널부재(10) 하부 슬래브 하단에서 상부 슬래브 상부까지의 높이에 따른 파괴포락선을 안정시킬 수 있는 충분한 거리를 선단 루프셀(62)의 길이로 한다.That is, the length of the tip roof cell 62 is a sufficient distance to stabilize the breakdown envelope according to the height from the lower slab bottom slab to the upper slab top.

또한, 상기 선단 루프셀(61, 62)의 강판 두께는 상재하중에 따른 계산에 따라 두께를 선정하여 구조용 강판을 사용하여 도 5 내지 도 9에 도시된 바와 같이 제작하여 설치한다.In addition, the thickness of the steel sheet of the tip roof cells (61, 62) is selected by the thickness according to the calculation according to the load, and manufactured and installed as shown in Figures 5 to 9 using the structural steel sheet.

그리고 상기 선단 루프셀(61, 62)의 설치는 터널부재(10) 제작장이 발진대 선단부에 터널부재(10)의 외주면에 맞추어 상부 및 측벽에 선단 루프셀(61, 62)을 조립하고, 도 8에 도시된 바와 같이 선단슈 프레임(70)과 조립하여 상부하중에 충분히 버틸 수 있도록 한다. And the installation of the tip roof cells (61, 62), the tunnel member 10 fabrication site is assembled to the top roof cells (61, 62) on the top and side walls in accordance with the outer circumferential surface of the tunnel member 10 in the front end of the oscillation table, As shown in FIG. 8, the front shoe is assembled with the tip shoe frame 70 so as to sufficiently hold the upper load.

또한, 상기 선단 루프셀(61, 62)을 추진할 수 있는 중압잭(80)을 중압잭받침(81)에 설치한다.In addition, a medium pressure jack (80) capable of pushing the front end roof cells (61, 62) is installed in the medium pressure jack support (81).

그리고 상기 선단 루프셀(61, 62)을 후면에 있는 터널부재(10)를 반력으로 중압잭(80)을 가동시켜 선단 루프셀(61, 62)을 지중에 압입시킨다. And the front end of the roof cell (61, 62) by pressing the tunnel member (10) on the rear side by operating the heavy pressure jack (80) to press the front roof cell (61, 62) into the ground.

각각의 선단 루프셀(61, 62)에 설치된 작업구(100)로 작업인원은 출입하고 굴착토를 배토한다. 또한, 확인구(90)로 작업상황을 체크한다.The work staff enters and exits the excavated soil into the work tool 100 installed in each of the front end roof cells 61 and 62. In addition, the operation status is checked with the confirmation port 90.

한편, 상기 터널부재(10)의 1회의 추진길이는 40cm 내외로 하며 선단 루프셀(61, 62)은 항상 지중에 30cm 이상은 지중에 압입되어 있어야 한다.On the other hand, the propulsion length of the tunnel member 10 should be about 40 cm and the tip roof cells 61 and 62 should always be press-fitted into the ground more than 30 cm in the ground.

즉, 상기 선단 루프셀(61, 62)의 압입, 선단슈(20) 내부 및 선단 루프셀(61, 62) 내부 굴착을 반복하여 선단 루프셀(61, 62) 후면의 터널부재(10)를 목적한 지중의 소정의 위치에 설치한다.That is, the tunnel members 10 on the rear of the tip roof cells 61 and 62 are repeatedly formed by repeatedly pressing the tip roof cells 61 and 62 and digging inside the tip shoes 20 and inside the tip roof cells 61 and 62. It is installed at a predetermined position in the intended ground.

여기서, 상기 선단 루프셀(61, 62)은 터널부재(10)와 분리된 구조물이므로 외부로 철거를 하므로 자재의 손상이 없는 경우 재사용이 가능함을 밝혀둔다.Here, since the front end roof cells 61 and 62 are structures that are separated from the tunnel member 10, they are demolished to the outside, so that the tip loop cells 61 and 62 can be reused when there is no damage to the material.

10: 터널부재 20: 선단슈
22: 하부 선단슈 플레이트 30: 파이프루프
31: 수직 강관루프 40: 가이드 도갱
51: 수평 각관루프 61: 선단 수평 루프셀
62: 선단 수직 루프셀 70: 프레임
80: 중압잭 81: 중압잭 받침
90: 확인구 100: 작업구
110: 보강플레이트 120: 막장 토류판
130: 중압잭 보강플레이트 140: 스크류잭
10: tunnel member 20: tip shoe
22: lower tip shoe plate 30: pipe loop
31: vertical steel pipe loop 40: guide crook
51: horizontal tube loop 61: front horizontal loop cell
62: vertical vertical roof cell 70: frame
80: medium jack 81: medium jack support
90: confirmation sphere 100: working sphere
110: reinforcing plate 120: membrane earth plate
130: medium pressure jack reinforcement plate 140: screw jack

Claims (2)

종횡으로 프레임(70)을 교차하여 선단슈(20)를 설치하고, 상기 선단슈(20)의 상부에 단면박스형의 선단 루프셀(61, 62)을 계획 터널 단면의 필요부분에 맞춰서 병렬시켜서 발진갱으로부터 순차 접속하면서 소요길이 지중에 압입하고, 이 선단 루프셀(61, 62) 후단에 터널부재(10) 전단을 대향함과 동시에 근접시키고, 상기 선단 루프셀(61, 62)과 터널부재(10)의 사이에 중압잭(80)을 설치하여 터널부재(10)의 높이에 따른 지반의 슬라이딩면을 확보한 길이만큼 선단 루프셀(61, 62)을 굴착하여 추진함을 특징으로 하는 선단 루프셀과 선단슈를 이용한 터널 구축방법. The tip shoe 20 is installed across the frame 70 in the longitudinal and horizontal direction, and the top end of the tip shoe 20 is oscillated by paralleling the end loop cells 61 and 62 of the cross-sectional box type according to the required portion of the plan tunnel cross section. While sequentially connecting from the gang, it press-fits into the required length ground, and the front end of the tunnel member 10 is brought into close proximity to the rear end of the front end roof cells 61 and 62, and is brought close to each other, and the front end roof cells 61 and 62 and the tunnel member ( 10. A tip loop, characterized in that a heavy pressure jack 80 is installed between the ends to excavate and propel the tip loop cells 61 and 62 as long as the sliding surface of the ground according to the height of the tunnel member 10 is secured. Tunnel construction method using cell and tip shoe. 발진갱으로부터 도달갱까지 관통하게 지중에 압입되는 것으로, 종횡으로 프레임(70)을 교차시켜 형성된 선단슈(20)와; 상기 선단슈(20)의 상면과 양측면에 소정길이 절단가능한 단면박스형으로 설치되는 선단 루프셀(61, 62)과; 상기 선단 루프셀(61, 62)의 후단에 설치되는 중압잭(80)으로 구성됨을 특징으로 하는 선단 루프셀과 선단슈를 이용한 터널 구축장치.
A tip shoe 20 which is press-fitted into the ground to penetrate from the oscillation shaft to the arrival shaft, and is formed by crossing the frame 70 vertically and horizontally; Leading roof cells (61, 62) which are installed on the top surface and both side surfaces of the tip shoe (20) in a cross-sectional box shape capable of cutting a predetermined length; Tunnel construction device using the front end loop cell and the tip shoe, characterized in that consisting of a heavy-duty jack (80) installed in the rear end of the front end roof cells (61, 62).
KR1020100011895A 2010-02-09 2010-02-09 The tunnel construction method for which point moving roof cell was used KR101206996B1 (en)

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