KR20120138460A - The structure body of non-excavation-tunnel and its method - Google Patents

The structure body of non-excavation-tunnel and its method Download PDF

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KR20120138460A
KR20120138460A KR1020110057943A KR20110057943A KR20120138460A KR 20120138460 A KR20120138460 A KR 20120138460A KR 1020110057943 A KR1020110057943 A KR 1020110057943A KR 20110057943 A KR20110057943 A KR 20110057943A KR 20120138460 A KR20120138460 A KR 20120138460A
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South Korea
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steel pipe
tunnel
block
opening
pipe structure
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KR1020110057943A
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Korean (ko)
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KR101309449B1 (en
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김선희
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김선희
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/005—Tunnels 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/04—Lining with building materials
    • E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
    • E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines

Abstract

PURPOSE: A trenchless tunnel and a construction method thereof are provided to enable construction without a separate anchor hole or structure, thereby reducing construction period and costs. CONSTITUTION: A construction method for a trenchless tunnel comprises the steps of: press-inserting steel pipe structures(10) at regular intervals to the top and lateral side of a position to construct the trenchless tunnel, wherein the steel pipe structures comprise steel pipes including fitting blades with fitting portions at the top and bottom of the outer periphery; press-fitting PC blocks(20) or steel plates to the fitting portions; excavating and discharging soil existing between the PC blocks or steel plates to obtain a space(30); arranging reinforcing bars in the space to complete slab and walls of the trenchless tunnel; and excavating and discharging soil filled in the slab and walls to complete the trenchless tunnel.

Description

비개착터널의 구조체 및 그 시공방법 {The Structure body of non-excavation-Tunnel and its method}Structure of non-sealed tunnel and construction method {The Structure body of non-excavation-Tunnel and its method}

본 발명은 지하구조물인 비 개착식 지하터널을 시공할 경우에 사용되어지는 구조체 및 그 시공방법에 관한 것이다. The present invention relates to a structure that is used when constructing a non-opening underground tunnel that is an underground structure, and a construction method thereof.

현재 비 개착식 지하터널을 시공하는 방법으로는 전방견인방식(Front Jaking)과 파이프루프공법과 대구경 강관압입공법(N.T.R)등을 들 수 있다 Current methods for constructing non-opening underground tunnels include the front jaking method, the pipe loop method and the large-diameter steel pipe indentation method (N.T.R).

전방견인방식(Front Jaking)의 공법은 상부 및 측면부에 강관을 압입한 후 별도로 제작되어지는 PC박스를 케이블 및 유압잭을 사용하여 상기 PC박스를 견인하는 방법이다.Front jaking method is a method of towing the PC box using a cable and a hydraulic jack to the PC box that is manufactured separately after pressing the steel pipe in the upper and side parts.

그러나 이러한 공법의 문제점은 상부 및 측면부의 강관을 그대로 매립하게 되며 별도의 PC박스를 제작함으로 자원의 낭비 및 공사비가 증가되는 문제점이 있는 것이다.However, the problem of this method is that the steel pipes of the upper and side portions are buried intact, and there is a problem in that waste of resources and construction cost are increased by making a separate PC box.

또한 파이프 루프공법의 문제점은 전방견인방식(Front Jaking)공법과 동일하게 강관을 상부 및 측면부에 압입한 후 내부의 토사를 굴착한 후 지보공을 설치한 후 본체의 구조체를 별도로 설치함으로 전방견인방식(Front Jaking)공법과 동일하게 자원의 낭비 및 공사비가 증가되는 문제점이 있는 것이다.In addition, the problem of the pipe loop method is to press the steel pipe in the upper and side parts in the same way as the front jaking method, excavate the earth and sand after installing the jibo ball and then install the structure of the main body separately. Like the Front Jaking method, the waste of resources and the cost of construction are increased.

반면 대구경 강관압입공법(N.T.R)은 대구경의 강관을 일정한 간격으로 압입한 후 대구경의 강관내부를 통하여 측면부 및 상.하부를 절단 한 후 철판을 이용하여 대구경의 강관과 강관사이를 연결한 후 철골을 설치하고 내부를 굴착토록 한 후 별도의 구조체를 설치하기 위한 지보공철골 및 거푸집과 동바리등이 추가됨으로 공사비가 증가되어지는 문제점이 발생하였던 것이다.On the other hand, large diameter steel pipe pressurization method (NTR) presses large diameter steel pipes at regular intervals, cuts the side part and upper and lower parts through the inside of large diameter steel pipes, and then connects the steel frame to the large diameter steel pipes using steel plates After installing and excavating the inside, there was a problem that the construction cost was increased due to the addition of support steel frame, formwork, and copper bar for installing a separate structure.

따라서 본 발명에서는 별도의 지보공이나 구조체가 없이도 시공이 가능토록 함으로서 혁신적으로 공기 및 공사비를 줄일 수 있도록 한 것이다.Therefore, in the present invention, it is possible to innovatively reduce air and construction costs by allowing construction without a separate support or structure.

이를 위하여 지하터널이 시공될 위치의 상부 및 벽체에 일정간격이 이격되어지게 강관을 압입토록 하고 상기 강관은 강관의 상하외경에서 연장되게 끼임부가 형성하어지고, 이런 상태에서 상기 끼임부에 PC블럭을 끼워 압입토록 한 후 강관의 내부와 강관의 끼임부의 상하로 끼워진 PC블럭이 사이의 토사를 굴착토록 한 후 내부공간을 형성하고 형성된 내공간에서 철근을 배근하여 콘크리트를 타설토록 함으로서 별도의 구조체를 사용치 아니한 것이다.To this end, the steel pipe is press-fitted so that a predetermined distance is spaced apart from the upper part and the wall of the location where the underground tunnel is to be constructed, and the steel pipe is formed to extend from the upper and lower diameters of the steel pipe, and in this state, the PC block After press-fitting, the PC block inserted into the inside of the steel pipe and the upper and lower parts of the steel pipe to excavate the soil between them, then form an internal space and reinforce the reinforcement in the formed inner space to cast concrete. Is not used.

따라서 강관을 지하터널이 시공될 위치의 상부 및 벽체에 일정간격으로 이격되어지게 압입토록 한 상태에서 이격된 강관의 사이로 PC블럭을 끼워 압입토록 하여 그의 내부에 토사를 굴착토록 한 후 공간을 확보하여 확보된 공간에서 철근을 배근토록 함으로서 종래와 같이 강관의 사용에 따른 별도의 구조체가 필요치 아니함으로 공기가 단축되고 시공비를 절감시킬 수 있는 것이다.Therefore, the steel pipes are press-fitted to be spaced apart at regular intervals on the upper part and wall of the location where the underground tunnel is to be constructed. By reinforcing the reinforcement in the secured space it is possible to shorten the air and reduce the construction cost by not needing a separate structure according to the use of steel pipes as in the prior art.

도1은 본 발명에 의하여 시공된 상태의 개략적인 단면도
도2는 본 발명의 강관과 PC블럭이 압입된 상태에서의 확보된 공간에 철근을 배근한 상태도
도3은 본 발명의 철근배근을 위한 강관의 구조도
도4는 본 발명의 호퍼의 사용상태도
도5는 본 발명의 PC블럭의 구조도.
도6은 본 발명의 PC블럭의 연결고정상태도.1 is a schematic cross-sectional view of a state constructed in accordance with the present invention
Figure 2 is a state diagram reinforcing the reinforcing bar in the space secured in the state in which the steel pipe and the PC block of the present invention
3 is a structural diagram of a steel pipe for reinforcement of the present invention
Figure 4 is a state of use of the hopper of the present invention
5 is a structural diagram of a PC block of the present invention.
Figure 6 is a connection fixed state diagram of a PC block of the present invention.

이하 첨부된 도면에 의거 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

우선 본 발명의 시공방법으로는 우선 지중에 시공되는 지하터널의 시공에 있어서, 일반적으로 사용되는 방법과 같이 추진 및 도달기지부에 가 시설을 설치한 후 수평관의 위치까지 터 파기를 실시한 후 바닥면에 추진틀인 H형강을 설치하고 발판용 토류판을 설치하는 단계를 구비한 후 도1 내지 도6에 도시된 바와 같이 비 개착 터널을 시공하고자 하는 위치에 일정한 구경을 갖는, 강관(10a)의 외경의 상하로 일정길이가 연장되게 끼임부(11)를 갖는 끼임날개(12,13)가 구비된, 강관구조물(10)을 비 개착 터널을 시공하고자 하는 위치의 상면과 측면으로 일정간격으로 압입토록 하는 단계와:First of all, in the construction method of underground tunnels to be constructed in the ground, as in the method generally used, the provisional facilities are installed at the propulsion and reach bases, and then the trench is excavated to the position of the horizontal pipe. After installing the H-shaped steel, which is the propulsion frame, and the step of installing the earth plate for scaffolding, the outer diameter of the steel pipe (10a) having a constant aperture in the position where you want to construct a non-opening tunnel as shown in Figures 1 to 6 The steel pipe structure 10 is provided with the fitting wings 12 and 13 having the fitting portions 11 so as to extend a predetermined length up and down of the steel pipe structure 10 at a predetermined interval to the top and side of the position where the non-opening tunnel is to be constructed. Steps to do:

상기와 같이 압입되어진 강관구조물(10)의 끼임부(11)에 PC블럭(20)이나 철판을 압입에 의하여 끼임토록 하는 단계와;Press-fitting the PC block 20 or the iron plate to the fitting portion 11 of the steel pipe structure 10 press-fitted as described above;

상기 강관구조물(10)의 내부와 끼임부(11)의 상하로 끼임되어진 PC블럭(20)이나 철판의 사이에 있는 토사를 굴착하여 배출토록 하여 공간(30)을 확보토록 하는 단계와;Digging and excavating the soil between the PC block 20 or the iron plate which is clamped up and down between the inside of the steel pipe structure 10 and the fitting portion 11 to secure a space 30;

상기와 같이 확보된 공간(30)에 철근(40)을 배근토록 하여 콘크리트의 타설에 의하여 비 개착터널의 슬래브 및 벽체를 완성하는 단계와;Reinforcing the reinforcing bar 40 in the space 30 secured as described above to complete the slab and the wall of the non-opening tunnel by pouring concrete;

상기 비 개착터널의 슬래브 및 벽체의 내부에 채워져 있는 토사를 굴착하여 배출함으로서 비개착 터널을 형성하는 단계로 시공되어지는 것이다.By excavating and discharging the soil filled in the interior of the slab and the wall of the non-opening tunnel is to be constructed in the step of forming a non-opening tunnel.

따라서 기존의 시공방법과 같이 강관(10a)을 그대로 매립토록 하는 것이 아니라 강관(10a)에 끼임날개(12,13)에 의한 끼임부(11)를 형성하여 강관구조물(10)을 형성한 후 상기 강관구조물(10)의 상하 끼임부(11)에 PC블럭(20)이나 철판을 끼움토록 하여 공간(30)을 확보토록 한 후 상기 강관구조물(10)과 PC블럭(20)에 의하여 형성되는 공간(30)에 철근(40)을 배근토록 함으로서 강관구조물(10)에 직접 콘크리트의 타설이 용이토록 하면서 별도의 구조체를 시공치 아니하여도 비 개착터널이 완성되어지는 것이다.Therefore, like the existing construction method, rather than allowing the steel pipe (10a) to be buried as it is, forming the fitting portion 11 by the clamping wings (12, 13) in the steel pipe (10a) to form a steel pipe structure (10) after The space formed by the steel pipe structure 10 and the PC block 20 to secure the space 30 by inserting the PC block 20 or the iron plate in the upper and lower clamping portion 11 of the steel pipe structure (10). By reinforcing the reinforcing bar (40) to the (30) to facilitate the casting of concrete directly to the steel pipe structure (10), the non-adhesive tunnel is completed without a separate structure.

이때 비 개착 터널을 시공하고자 하는 위치에 강관구조물(10)을 압입할 경우에 연속적인 작업을 위하여 강관구조물(10)에 반원형상인 호퍼(50)를 사용토록 하여 강관구조물(10)의 내부에 토사를 굴착하여 배출하기가 용이하게 되는 것이다.In this case, when the steel pipe structure 10 is pressed into the position where the non-opening tunnel is to be constructed, the semi-circular hopper 50 is used in the steel pipe structure 10 for continuous work. It will be easy to excavate and discharge.

또한 본 발명에서 사용되는 PC블럭(20)의 구조는 강관구조물(10)의 끼임부(11)에 끼임이 용이토록 하면서 강관구조물(10)과의 긴밀한 밀착을 위하여 어느 일방 즉 강관구조물(10)의 강관(10a)과 밀착되어지는 면으로는 절개면(21)이 형성되어지는 것이고, 상기 절개면(21)은 강관(10a)의 곡면 R각에 따라 변경 제작되어지는 것이다.In addition, the structure of the PC block 20 used in the present invention is easy to be pinched to the fitting portion 11 of the steel pipe structure 10 while the one close to the steel pipe structure 10, that is, one of the steel pipe structure (10) The surface in close contact with the steel pipe (10a) of the cut surface 21 is formed, the cut surface 21 is to be produced according to the curved surface R angle of the steel pipe (10a).

또한 상기 PC블럭(20)은 길이의 연장을 위하여 일측단으로는 경사지게 절개면(21)이 형성된 상태에서 타측단으로는 요부(22)를 형성토록 하고, 상기 요부(22)에 끼임되어 맞물림 연결되기 위하여 일측단으로는 돌부(23)가 형성되고 타측단으로는 경사지게 절개면(21)이 형성되는 또 다른 PC블럭(20a)을 사용하여 연결하거나 또는 일측단으로는 요부(22)가 형성되고 타측단으로는 돌부(23)가 형성되는 연결PC블럭(60)을 사용하여 길게 연장하여 사용가능한 것이다.In addition, the PC block 20 is to form a recess 22 at the other end in a state in which the inclined surface 21 is formed to be inclined at one end in order to extend the length, and is fitted into the recess 22 to engage the engagement. In order to be connected to each other by using another PC block 20a having a protrusion 23 is formed on the one end and the inclined surface 21 is formed obliquely on the other end or the recess 22 is formed on one side The other end can be used to extend for a long time using the connection PC block 60 is formed with a projection (23).

이때 요부(22)와 돌부(23)가 맞물림되어지는 부분에는 누수방지를 위하여 각각의 지수수단(22a,23a)이 형성되어지는 것이다.At this time, the water outlet means 22a and 23a are formed in the portion where the recess 22 and the protrusion 23 are engaged to prevent leakage.

또한 이와 같이 조립되어지는 PC블럭(20,20a,60)은 강한 고정력을 위하여 그 중앙으로 관통되게 형성되는 관통홀(27)을 통하여 강선(28)에 의하여 인장하여 고정연결토록 하거나 조임볼트 등을 사용하여 조임연결토록 하는 것이고, 이러한 조임연결방식이 본 발명의 목적을 제한하는 것이 아니고 다양한 방식이 사용가능한 것이다.In addition, the PC blocks 20, 20a, and 60 assembled in this way are tensioned by the steel wire 28 through the through holes 27 formed to penetrate to the center thereof for a strong fixing force so as to securely connect or tighten the bolts. It is to be used to tighten the connection, this tightening connection is not intended to limit the purpose of the present invention is a variety of ways can be used.

이때 PC블럭(20)의 양단의 절개면(21)이 형성된 부분은 선단을 단턱을 갖는 돌부(21a)로 형성한 후 상기 단턱을 갖는 돌부(21a)를 철판(24)으로 감싸 보강토록 함으로서 강도를 유지토록 하는 것이고, 상기와 같이 감싸여진 철판(24)의 고정을 위하여 다양한 고정수단(25)이 사용되어지는 것으로 이러한 고정수단이 본 발명의 목적을 제한 하는 것이 아니다.At this time, the part in which the incision surface 21 at both ends of the PC block 20 is formed is formed by the protrusion 21a having the stepped end, and then reinforced by wrapping the protrusion 21a having the stepped with the iron plate 24 to reinforce it. In order to maintain the above, various fixing means 25 are used to fix the iron plate 24 wrapped as described above, and these fixing means do not limit the purpose of the present invention.

또한 비 개착터널을 형성하는 상부 및 측면에 설치되어지는 강관구조물(10)의 사이로 끼움설치되어지는 PC블럭(20)에는 PC블럭(20)의 압입시 느슨하게 되는 토사의 공극을 메워주기 위하여 그라우팅 홀(26)이 형성되는 것이다.In addition, a grouting hole is provided in the PC block 20 to be fitted between the steel pipe structures 10 installed on the upper and side surfaces forming the non-opening tunnel to fill the air gaps loosened when the PC block 20 is press-fitted. (26) is formed.

또한 상기 강관구조물(10)에는 철근(40)의 배근을 위한 다수개의 철근 배근용 홀(14)이 형성되어지는 것이고, 작업자의 이동통로를 위하여 원형이나 다각형의 개구홀(15)이 형성되어지는 것이다.In addition, the steel pipe structure 10 is formed with a plurality of reinforcing bar reinforcing hole 14 for the reinforcement of the reinforcing bar 40, the circular or polygonal opening hole 15 is formed for the movement path of the worker will be.

또한 상기 강관구조물(10)에는 상기 끼임부이외에 콘크리트의 타설시 콘크리트와의 접착력을 증진시키기 위하여 보조철물(16)을 강관(10의 외측과 내측에 돌출되게 형성함으로서 강한 구조체의 기능을 하게 되는 것이고, 이러한 보조철물(16)은 선단이 절곡토록 함으로서 콘크리트와의 밀착력을 증진토록 하는 것이다. In addition, the steel pipe structure (10) is to function as a strong structure by forming the auxiliary iron (16) to protrude on the outside and the inside of the steel pipe (10) in order to enhance the adhesive force with the concrete when the concrete other than the pinched portion. In this way, the auxiliary iron 16 is to bend the tip to enhance the adhesion to the concrete.

본 발명에서 설명하고 있는 추진 및 도달기지부에 가 시설을 설치한 후 수평관의 위치까지 터 파기를 실시한 후 바닥면에 추진틀인 H형강을 설치하고 발판용 토류판을 설치하는 단계는 일반적으로 통용되는 단계이기 때문에 이러한 단계가 본 발명의 목적을 제한하는 것이 아니다. After installing the provisional facility in the propulsion and reach base described in the present invention, and then dig up to the position of the horizontal pipe, the step of installing the H-beam, which is the propulsion frame, and installing the earthen board for scaffolding is generally used. These steps do not limit the purpose of the present invention because they are steps.

따라서 상기와 같이 추진기지가 완료된 상태에서 비 개착터널의 구조역학적인 관점에 의하여 이격간격이 결정된 강관구조물(10)을 중앙에서 좌우측으로 압입을 진행한후 강관구조물(10)의 사이로 강관(10a)의 상하로 형성된 끼임부(11)에 PC블럭(20)을 끼임하여 강관(10a)의 내부와 강관구조물(10)의 상하로 끼워진 PC블럭(20)에 의하여 형성되는 내부의 토사를 굴착하여 배출함으로서 공간(30)을 확보한 후 강관구조물(10)의 배근용 홀(14)을 이용하여 철근(40)을 배근토록 하고, 고유동 콘크리트를 압송하여 슬래브의 구조체를 완성한다.Accordingly, after the propulsion base is completed as described above, the pressurized steel pipe structure 10, which is determined by the structural dynamics of the non-opening tunnel, from the center to the left and right sides, is pressed into the steel pipe structure 10 between the steel pipe structures 10. The excavation of the earth and sand formed by the PC block 20 inserted into the upper and lower portions of the steel pipe 10a and the upper and lower portions of the steel pipe structure 10 by sandwiching the PC block 20 formed in the upper and lower portions of the pipe 11a. By securing the space 30, using the reinforcement hole 14 of the steel pipe structure 10 to reinforce the reinforcing bar 40, and pressurized high-flow concrete to complete the structure of the slab.

그후 동일한 방법으로 벽체의 구조체를 완성하는 것이고, 이때 슬래브와 벽체의 헌치부의 보강이 필요할 경우에는 PC블럭에 이미 설치한 배근용홀에 철근을 설치하여 내부 굴착시 돌출시킨 철근과 연결하여 보강을 위한 H빔을 연결 보강토록 하는 것이다.After that, the structure of the wall is completed in the same way.In this case, when reinforcement of the slab and the haunting part of the wall is necessary, rebar is installed in the reinforcement hole already installed in the PC block and connected with the reinforcing bar that protrudes during internal excavation. This is to connect and reinforce the H beam.

이와 같이 비개착터널의 슬래브와 벽체가 완료된 상태에서 내부토사를 굴착하여 배출하게 되는 것이다.As such, the internal soil is excavated and discharged when the slab and the wall of the non-attached tunnel are completed.

이때 비 개착 지하터널의 폭이 넓을 경우에는 내부굴착시 H형강을 이용하여 내부굴착과 동시에 강관구조물(10)을 지지토록 하고, 상부의 하중을 지지토록 한 상태에서 기둥을 형성하게 되는 것이다.In this case, when the non-opening underground tunnel is wide, the internal drilling is used to support the steel pipe structure 10 at the same time as the internal excavation using the H-beam, and the pillar is formed in the state to support the load of the upper portion.

10: 강관구조물 10a: 강관
11: 끼임부 12,13: 끼임날개
14: 배근용 홀 15: 개구홀
16: 보조철물
20: PC블럭 21: 절개면
22: 요부 23: 돌부
24: 철판 25: 고정수단
26: 그라우팅 홀 27: 관통홀
28: 강선 30: 공간
40: 철근 50: 호퍼
60: 연결PC블럭10: steel pipe structure 10a: steel pipe
11: clip 12,13: clip wings
14: opening hole 15: opening hole
16: auxiliary hardware
20: PC block 21: Incision surface
22: part 23: stone parts
24: iron plate 25: fixing means
26: grouting hole 27: through hole
28: liner 30: space
40: rebar 50: hopper
60: connection PC block

Claims (8)

강관(10a)의 외경의 상하로 일정길이가 연장되게 끼임부(11)를 갖는 끼임날개(12,13)가 구비된, 강관구조물(10)을 비 개착 터널을 시공하고자 하는 위치의 상면과 측면으로 일정간격으로 압입토록 하는 단계와:
상기와 같이 압입되어진 강관구조물(10)의 끼임부(11)에 PC블럭(20)이나 철판을 압입에 의하여 끼임토록 하는 단계와;
상기 강관구조물(10)의 내부와 끼임부(11)의 상하로 끼임되어진 PC블럭(20)이나 철판의 사이에 있는 토사를 굴착하여 배출토록 하여 공간(30)을 확보토록 하는 단계와;
상기와 같이 확보된 공간(30)에 철근(40)을 배근토록 하여 콘크리트의 타설에 의하여 배 개착터널의 슬래브 및 벽체를 완성하는 단계와;
상기 비 개착터널의 슬래브 및 벽체의 내부에 채워져 있는 토사를 굴착하여 배출함으로서 비개착 터널을 형성하는 단계로 시공되어지는 비개착터널의 시공방법Top and side of the position where the steel pipe structure 10 is to be constructed without the non-adhesive tunnel, which is provided with the fitting wings 12 and 13 having the fitting portions 11 to extend a predetermined length up and down the outer diameter of the steel pipe 10a. Indenting at regular intervals with:
Press-fitting the PC block 20 or the iron plate to the fitting portion 11 of the steel pipe structure 10 press-fitted as described above;
Digging and excavating the soil between the PC block 20 or the iron plate which is clamped up and down between the inside of the steel pipe structure 10 and the fitting portion 11 to secure a space 30;
Reinforcing the reinforcing bar 40 in the space 30 secured as described above to complete the slab and the wall of the ship-opening tunnel by placing concrete;
Construction method of the non-opening tunnel which is constructed by forming a non-opening tunnel by excavating and discharging the soil filled in the slab and the wall of the non-opening tunnel. 강관(10a)의 외경의 상하로 일정길이가 연장되게 끼임부(11)를 갖는 끼임날개(12,13)가 구비된 강관구조물(10)과
상기 강관구조물(10)의 끼임부(11)에 끼임되어지는 PC블럭(20)과
상기 강관구조물(10)의 내부와 끼임부(11)의 상하로 끼임되어진 PC블럭(20)이나 철판의 사이에 있는 토사를 굴착 배출하여 생기는 공간(30)에 배근되어지는 철근(40)과
상기 철근의 배근을 위하여 강관구조물(10)에 다수개의 철근 배근용 홀(14)과 작업자의 이동통로를 위한 개구홀(15)과 이 형성되어지는 비개착터널의 구조체.Steel pipe structure (10) provided with pinned wings (12, 13) having a pinned portion (11) to extend a predetermined length up and down the outer diameter of the steel pipe (10a) and
PC block 20 is fitted to the fitting portion 11 of the steel pipe structure (10) and
Reinforcing bar 40 which is disposed in the space 30 generated by excavating and discharging the earth and sand between the PC block 20 or the iron plate is pinched up and down the inside of the steel pipe structure 10 and the fitting portion 11 and
Structure of the non-opening tunnel is formed with a plurality of reinforcing bar reinforcing hole 14 and the opening hole for the moving passage of the worker in the steel pipe structure (10) for the reinforcement of the reinforcing bar. 제2항에 있어서, 상기 강관구조물의 강관의 외측과 내측에 보조철물이 장착되어져 콘크리트의 접합력을 증진토록 하는 비개착터널의 구조체.The non-opening tunnel structure according to claim 2, wherein auxiliary irons are mounted on the outside and the inside of the steel pipe of the steel pipe structure to increase the bonding strength of the concrete. 제2항에 있어서, 상기 끼임부에 끼임되어지는 PC블럭은 선단으로는 경사지는 절개면이 형성되는 비개착터널의 구조체.3. The structure of the non-opening tunnel according to claim 2, wherein the PC block to be fitted to the pinned portion has an inclined cut surface formed at the tip. 제4항에 있어서, 상기 절개면은 단턱진 돌부로 형성되어 단턱진 돌부를 철판으로 감싸여져 보강토록 되는 비개착터널의 구조체.The structure of the non-opening tunnel of claim 4, wherein the cut surface is formed of a stepped protrusion so that the stepped protrusion is wrapped with an iron plate to be reinforced. 제2항 또는 제4항과 제5항의 어느 하나의 항에 있어서, 상기 PC블럭은 요부와 돌부에 의하여 맞물림 결합토록 되어 그 중앙에 형성된 관통홀에 강선에 의하여 연결고정되어지는 비개착터널의 구조체.The structure of the non-opening tunnel according to claim 2 or 4 or 5, wherein the PC block is engaged with the recess and the protrusion to be connected and fixed by a steel wire to the through hole formed at the center thereof. . 제6항에 있어서, 상기 PC블럭의 요부와 돌부에는 지수수단이 형성되어지는 비개착터널의 구조체.7. The structure of the non-opening tunnel according to claim 6, wherein water jet means is formed in the recesses and protrusions of the PC block. 제7항에 있어서, 상기 PC블럭에는 그라우팅홀이 형성되는 비개착터널의 구조체.






8. The structure of the non-attached tunnel according to claim 7, wherein a grouting hole is formed in the PC block.






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