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KR101069705B1 - Method for installing waterproofing steel plate in construction of undergound tunnel - Google Patents

Method for installing waterproofing steel plate in construction of undergound tunnel Download PDF

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KR101069705B1
KR101069705B1 KR1020090050838A KR20090050838A KR101069705B1 KR 101069705 B1 KR101069705 B1 KR 101069705B1 KR 1020090050838 A KR1020090050838 A KR 1020090050838A KR 20090050838 A KR20090050838 A KR 20090050838A KR 101069705 B1 KR101069705 B1 KR 101069705B1
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steel pipe
steel
waterproof
steel plate
plate
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KR1020090050838A
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KR20100132164A (en
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김경곤
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주식회사 엔티에스이앤씨
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Priority to CN200910246922XA priority patent/CN101922293B/en
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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
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • E21D11/38Waterproofing; Heat insulating; Soundproofing; Electric insulating
    • 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
    • E21D9/14Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D13/00Large underground chambers; Methods or apparatus for making them

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

본 발명은 지하터널 형성용 구조물 설치방법에 있어서, 특히 구조물을 형성하기 위한 강관을 압입한 후 그 강관의 좌우 및 상하를 연결하는 방수철판을 설치하는 방법에 관한 것으로,The present invention relates to a method for installing a structure for forming an underground tunnel, in particular, a method of installing a waterproof steel plate for connecting the left and right and top and bottom of the steel pipe after press-fitting the steel pipe for forming the structure,

지하터널 예정면에 지하터널 구조물을 형성키 위해 예전면을 따라 일정한 간격으로 유압잭 및 추진보조관을 이용하여 다수의 강관을 압입시키고, 각각의 강관의 사이를 방수키 위해 용접 설치되는 방수철판을 설치하는 설치방법에 있어서, 상기 압입된 강관의 내측 토사를 굴착하고 절개를 하기 위한 강관 보강용 임시 토압지지대를 설치하는 공정과, 강관의 상측부를 절개하여 상부 방수철판을 압입하기 위한 절개홈을 형성하는 공정과, 강관의 전면에 가이드빔을 설치 후 상기 가이드빔에 상부 방수철판을 위치시키고 유압잭에 의해 강관의 절개홈을 따라 상부 방수철판을 압입 추진시키고, 추진되어 발생한 후측공간에 다시 새로운 방수철판을 위치시켜 전후 방수철판을 용접 후 전기한 방법으로 다시 압입 추진시켜 이미 압입된 방수철판과 동시에 추진하는 방법을 반복 설치 후 강관과 압입된 상부 방수철판을 용접하는 상부 방수철판 설치공정과, 강관 하측부를 절개하고 상부 방수철판 하측의 측면토사를 굴착 후, 절개 굴착된 강관의 하측부에 하부 지지판을 강관과 용접하는 하부 지지판 설치공정과, 상부 방수철판과 하부 지지판의 사이에 토압지지대를 설치하고 강관내에 설치된 임시 토압지지대를 제거하는 공정으로 이루어짐으로,In order to form the underground tunnel structure on the underground tunnel, the steel pipes are press-fitted using hydraulic jacks and propulsion auxiliary pipes at regular intervals along the former surface, and a waterproof steel plate is welded and installed to waterproof the steel pipes. In the installation method, the process of installing a temporary earth pressure support for reinforcing the steel pipe for excavating and cutting the inner soil of the press-fitted steel pipe, and by cutting the upper side of the steel pipe to form a cutting groove for pressing the upper waterproof steel sheet After installing the guide beam on the front side of the steel pipe, place the upper waterproof steel plate on the guide beam and press-propell the upper waterproof steel plate along the cut-out groove of the steel pipe by the hydraulic jack and push the new waterproof steel plate back to the rear space generated by the propulsion. After placing the front and back waterproofing steel plate by welding, press-propulsion again, and at the same time After repeated installation of the propulsion method, the installation process of the upper waterproof steel plate to weld the steel pipe and the press-fitted upper waterproof steel plate, and cut the lower side of the steel pipe, excavate the side soil of the lower waterproof steel plate, and then lower the lower support plate at the lower part of the cut The lower support plate installation process for welding the steel pipe with the steel pipe, and installing the earth pressure support between the upper waterproof steel plate and the lower support plate and removing the temporary earth pressure support installed in the steel pipe.

일부 부분적 설치 후 여타 나머지 부분을 2차 설치하므로서 토사유실과 공사기간 지연 등 문제점이 발생하던 종래 방식과는 달리 상부 방수판의 완전 연결 설치 후 하부 방수판의 설치로 토사 유실이 없고 공정의 단순화와 공사기간의 단축으로 원가가 절감되는 효과가 있을 뿐 아니라 방수철판의 폭을 넓힐 수 있어 강관 간의 거리를 멀리 할 수 있어 비교적 원가 및 시공단가가 비싼 강관의 갯수를 줄일 수 있어 이에 의한 원가 절감의 효과도 있다.Unlike the conventional method in which problems such as earth and sand room and construction period were delayed by installing the second part after the partial installation, there was no earth and sand loss due to the installation of the bottom waterproof plate after fully connecting the upper waterproof plate and simplifying the process. In addition to reducing costs by shortening the construction period, it is possible to widen the width of the waterproof steel sheet, so that the distance between the steel pipes can be farther away, thereby reducing the number of steel pipes, which are relatively expensive and costly to construct, thus reducing the cost. There is also.

강관압입, 지하터널, 방수철판 Steel pipe press-in, underground tunnel, steel plate

Description

강관압입식 지하터널 구조물 형성공법에 있어서의 강관연결용 방수철판의 설치방법{Method for installing waterproofing steel plate in construction of undergound tunnel}Method for installing waterproofing steel plate in construction of undergound tunnel}

본 발명은 터널 굴착부의 토사를 미리 파내지 않고 먼저 지중에 터널형성용 구조물을 설치하여 사전에 충분히 응력에 견디도록 한 다음 구조물 내측을 굴착하여 지하터널을 형성하도록 하는 지하터널 형성용 구조물 설치방법에 있어서, 특히 구조물을 형성하기 위한 강관을 압입한 후 그 강관의 좌우 및 상하를 연결하는 방수철판을 설치하는 방법에 관한 것이다.The present invention is to install a structure for forming underground tunnels in the ground without first digging out the soil of the tunnel excavation portion in advance to ensure sufficient stress in advance and then to excavate the inside of the structure to form an underground tunnel structure installation method In particular, the present invention relates to a method of installing a waterproof steel plate for connecting the left and right and the top and bottom of the steel pipe after pressing the steel pipe for forming a structure.

기존의 지하터널 형성용 구조물 설치방법은, 공사의 종류에 따라 약간의 공정의 차이는 있으나 대부분 터널시공 예정면을 따라 정확한 위치를 측량하여 강관 압입준비를 완료하는 강관 압입 위치 측량 및 선로관 설치공정과,Existing underground tunnel formation structure installation method has a slight process difference depending on the type of construction, but most of the steel pipe press position measurement and track pipe installation process to complete the steel pipe press preparation by surveying the exact position along the planned tunnel construction surface and,

강관을 압입할 위치에 강관을 위치시키고 유압잭과 추진보조관 등을 이용하여 강관을 단계적으로 압입시키는 강관압입 공정과,Steel pipe press-in process of placing the steel pipe in the position to press the steel pipe and press-fitting the steel pipe step by step using the hydraulic jack and the propulsion auxiliary pipe;

강관압입공정에서 선도관에 형성된 토류방지판 투입구를 통하여 흙을 파내고 토류방지판을 설치하는 공정과,Digging soil and installing the earth prevention plate through the earth prevention plate inlet formed in the leading pipe in the steel pipe press-in process;

토류방지판 주변에 시멘트 그라우팅을 하여 토사유출을 방지하는 갱외 그라우팅 공정과,An out-of-gang grouting process that prevents soil leakage by cement grouting around the earth barrier;

강관의 측면을 소정폭으로 절개하여 강관과 강관 사이를 철판으로 연결하는 강관연결 공정과,Steel pipe connection process of cutting the side of the steel pipe to a predetermined width and connecting between the steel pipe and the steel pipe with an iron plate,

측벽 형성이 필요한 경우 측벽 형성용 토류판을 설치하면서 토류판을 설치하는 공정과,Installing the earth plate while installing the earth plate for forming the side wall when the side wall is required;

강관 등의 공간내 거푸집을 설치하는 공정과,The process of installing formwork in space such as steel pipe,

강관 및 거푸집내에 철근을 배근하는 공정과,Process of reinforcing steel bars in steel pipes and formwork,

강관 및 거푸집내에 콘크리트를 타설하는 공정과,The process of pouring concrete in steel pipes and formwork,

콘크리트 양생 후 구조물 내측의 터널면을 굴착하는 공정으로 지하터널 형성용 구조물을 설치하였다.After curing the concrete, the tunnel tunnel inside the structure was excavated and the underground tunnel formation was installed.

그 공정 중에서 강관과 강관을 이어주는 강관 연결공정을 더욱 자세히 보면,If you look more closely at the process of connecting the steel pipes

압입된 강관내에서 강관측벽을 토압에 견딜 수 있도록 일정 간격으로 절개하여 부분적으로 강관의 일부를 남긴 상태에서 절개된 절개부위의 상측과 하측을 각각 토압받침용 상하 철판을 용접 등으로 서로 연결하고 상하의 토압으로부터 받치는 보강지지대를 설치한 후, 부분적으로 남겨진 나머지 부분을 다시 절개하여 그 절개부분에 상기와 동일한 방법으로 상하철판을 설치하므로서 상하 철판이 연속적으로 설치되어 좌우강관을 서로 연결되게 하였다.In the press-fitted steel pipe, the steel pipe side wall is cut at regular intervals to endure the earth pressure, and the upper and lower steel plates for earth pressure bearing are connected to each other by welding, respectively, while leaving part of the steel pipe partially. After installing the reinforcing support supported by the earth pressure, the remaining part was partially cut off again and the upper and lower steel plates were continuously installed by connecting the upper and lower steel plates in the same manner as above to connect the left and right steel pipes to each other.

이러한 철판의 연결방식은 부분적인 절개와 설치의 반복으로 시공 시간이 많이 소요되어 공사기간의 연장으로 공사비용이 증가되는 문제가 야기될 뿐 아니라 부분적 시공과정에서 토압의 유실이 잦은 문제가 있고, 연결할 수 있는 강판길이의 한정으로 좌우 강관의 이격 거리가 한정되므로서 강관의 시공 갯수가 늘어나 이로 인한 공사비용이 증가되는 문제도 있다.The connection method of the steel plate takes a lot of construction time due to partial incision and repetition of installation, which causes the problem of increasing construction cost due to the extension of construction period, and there is a problem of frequent loss of earth pressure in the partial construction process. As the distance between the left and right steel pipes is limited by the limitation of the steel sheet length, the number of construction of the steel pipes increases, thereby increasing the construction cost.

본 발명은 강관압입식 지하터널 구조물 형성공법에 있어서 강관의 좌우를 연결하는 방수철판을 설치할시에 전기한 바와 같은 문제점을 제거코저 강관의 측면에 절개홈을 전체적으로 연속형성하여 이에 방수철판을 압입 또는 견인에 의해 연속 압입되게 하여 토압 유실을 막고 공정의 단순화로 공기를 단축하여 공사비용을 줄입과 함께 압입 강관수를 최소화하는 방수철판 설치방법을 제공함에 발명의 목적이 있다.The present invention eliminates the problems as described above when installing a waterproof steel plate connecting the left and right of the steel pipe in the steel pipe pressurized underground tunnel structure forming method to form a continuous incision groove on the side of the steel pipe as a whole to press the waterproof steel plate or It is an object of the present invention to provide a method for installing a waterproof steel sheet that minimizes the number of press-fitted steel pipes by reducing the construction cost by shortening the air by simplifying the process to prevent the pressure loss by continuous indentation by traction.

전기한 발명의 목적을 이루기 위한 기술적 수단으로서는,
지하터널 예정면에 지하터널 구조물을 형성키 위해 예전면을 따라 일정한 간격으로 유압잭 및 추진보조관을 이용하여 다수의 강관을 압입시키고, 각각의 강관의 사이를 방수키 위해 용접 설치되는 방수철판을 설치하는 설치방법에 있어서,
상기 압입된 강관의 내측 토사를 굴착하고 절개를 하기 위한 강관 보강용 임시 토압지지대를 설치하는 공정과,
강관의 상측부를 절개하여 상부 방수철판을 압입하기 위한 절개홈을 형성하는 공정과,
강관의 전면에 가이드빔을 설치 후 상기 가이드빔에 상부 방수철판을 위치시키고 유압잭에 의해 강관의 절개홈을 따라 상부 방수철판을 압입 추진시키고, 추진되어 발생한 후측공간에 다시 새로운 방수철판을 위치시켜 전후 방수철판을 용접 후 전기한 방법으로 다시 압입 추진시켜 이미 압입된 방수철판과 동시에 추진하는 방법을 반복 설치 후 강관과 압입된 상부 방수철판을 용접하는 상부 방수철판 설치공정과,
강관 하측부를 절개하고 상부 방수철판 하측의 측면토사를 굴착 후, 절개 굴착된 강관의 하측부에 하부 지지판을 강관과 용접하는 하부 지지판 설치공정과,
As a technical means for achieving the above object,
In order to form the underground tunnel structure on the underground tunnel, the steel pipes are press-fitted using hydraulic jacks and propulsion auxiliary pipes at regular intervals along the former surface, and a waterproof steel plate is welded and installed to waterproof the steel pipes. In the installation method,
Installing a temporary earth pressure support for steel pipe reinforcement for excavating and cutting the inner soil of the press-fitted steel pipe;
Cutting the upper part of the steel pipe to form a cutting groove for pressing the upper waterproof steel plate;
After installing the guide beam on the front side of the steel pipe, the upper waterproof steel plate is placed on the guide beam, and the hydraulic jack presses and pushes the upper waterproof steel plate along the incision groove of the steel pipe, and the new waterproof steel plate is placed again and again in the rear space generated. After installing the watertight steel plate by welding and press-propelled again by the method of electrical welding, the method of installing the upper watertight steel plate to weld the steel pipe and the upper watertight steel plate after repeated installation,
A lower support plate installation process of cutting the lower part of the steel pipe and excavating the side soil under the upper waterproof steel plate, and then welding the lower support plate to the lower part of the cut and excavated steel pipe;

상부 방수철판과 하부 지지판의 사이에 토압지지대를 설치하고 강관내에 설치된 임시 토압지지대를 제거하는 공정으로 이루어진다.The earth pressure support is installed between the upper waterproof steel plate and the lower support plate, and the temporary earth pressure support is installed in the steel pipe.

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본원발명에 의한 연속압입 방식의 방수철판 설치방법은, 일부 부분적 설치 후 여타 나머지 부분을 2차 설치하므로서 토사유실과 공사기간 지연 등 문제점이 발생하던 종래 방식과는 달리 상부 방수판의 완전 연결 설치 후 하부 지지판의 설치로 토사 유실이 없고 공정의 단순화와 공사기간의 단축으로 원가가 절감되는 효과가 있을 뿐 아니라 방수철판의 폭을 넓힐 수 있어 강관 간의 거리를 멀리 할 수 있어 비교적 원가 및 시공단가가 비싼 강관의 갯수를 줄일 수 있어 이에 의한 원가 절감의 효과도 있다.According to the present invention, the installation method of the waterproof press-plate of the continuous press-fitting method is different from the conventional method in which the problems such as the earth and sand loss and the construction period are delayed by installing the other parts after the partial installation, after the installation of the upper waterproof plate are completely connected. The installation of the lower support plate eliminates the loss of soil, reduces the cost by simplifying the process and shortens the construction period, as well as widening the width of the waterproof steel plate, so that the distance between the steel pipes can be distanced, which is relatively expensive. The number of steel pipes can be reduced, thereby reducing the cost.

이하, 본 발명의 실시예를 첨부도면에 의하여 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail by the accompanying drawings.

도 1a 내지 도 1f는 본 발명 강관 연결용 방수철판의 설치방법의 공정별 설명도이다.1A to 1F are explanatory diagrams for each process of the installation method of the waterproof steel plate for connecting a steel pipe according to the present invention.

강관의 압입은 기존 지하터널 형성용 구조물의 설치 방법시와 동일한 즉 터널 시공 예정면을 따라 정확한 위치에 강관을 위치시키고 유압잭과 추진보조관 등을 이용하여 강관을 단계적으로 연속 압입하여 도 1a와 같이 강관(1)(1')을 압입하 고 강관 내부를 굴착한다.Indentation of the steel pipe is the same as the existing method of installing the underground tunnel forming structure, that is, the steel pipe is positioned at the correct position along the tunnel construction plan and continuously presses the steel pipe using the hydraulic jack and the propulsion auxiliary pipe as shown in FIG. 1A. Indent the steel pipe (1) (1 ') and drill the inside of the steel pipe.

여기서 강관은 설계사항에 따라 단면상 원형관이나 4각관을 선택 사용할 수 있다.In this case, the steel pipe can be selected round or square tube according to the design.

굴착된 강관 내부에 도 1b의 도시와 같이 강관 보강용 임시 토압 지지대(2)(2')를 수직방향으로 설치하여 강관에 미치는 토압에 대하여 내력을 갖게 한다.The temporary earth pressure support (2) (2 ') for reinforcing the steel pipe is installed in the vertical direction in the excavated steel pipe as shown in FIG. 1b to have a load capacity against the earth pressure applied to the steel pipe.

임시 토압지지대(2)(2')가 설치된 강관(1)(1')의 내측에서 도 1c의 도시와 같이 상부 방수철판이 위치할 부분에 해당하는 강관의 상측부를 절개하여 전후 방향으로 연속 형성되게 한 절개홈(3)을 형성한다.Inside the steel pipe (1) (1 ') with the temporary earth pressure support (2) (2') is installed in the front and rear direction by cutting the upper side of the steel pipe corresponding to the portion where the upper waterproof steel plate will be located as shown in Figure 1c The incision groove 3 is formed.

절개홈(3)이 형성된 강관(1)(1')의 전면부에서 도 1d의 도시와 같이 절개홈(3)을 따라 상부 방수철판(4)(4')을 절개홈(3)에 압입한다.In the front portion of the steel pipe (1) (1 ') formed with the cutting groove (3), the upper waterproof steel plate (4) (4') is pressed into the cutting groove (3) along the cutting groove (3) as shown in FIG. do.

여기서 상부 방수철판(4)(4')을 압입할 시에는 강관의 절개홈(3) 전면에 가이드빔(5)를 설치하되, 설치된 가이드빔(5)에 상부 방수철판(4)을 위치시키고 그 후측에 캡(6)을 씌워서 유압잭(7)에 의해 앞쪽으로 압입하여 추진시키고 추진되어 발생된 후측 공간에 다시 새로운 상부 방수철판(4')을 위치시켜 전후 방수철판(4)(4')을 서로 용접한 후 전기한 방법으로 다시 압입 추진시켜 이미 압입된 방수판과 동시에 추진되는 방법을 반복하여 상부 방수철판(4)(4')의 연속적인 압입이 가능한 것이며,Here, when pressing the upper waterproof steel sheet (4) (4 '), while installing the guide beam (5) in front of the cutting groove (3) of the steel pipe, place the upper waterproof steel plate (4) on the guide beam (5) installed Put the cap 6 on the rear side, press-in and push forward to the front by the hydraulic jack (7) and place the new upper waterproof steel plate (4 ') in the rear space generated by the propulsion again, and the front and rear waterproof steel plate (4) (4') After welding to each other and then press-propelled again by the electric method is to be pushed at the same time with the already intruded waterproof plate to repeat the continuous press-in of the upper waterproof steel sheet (4) (4 '),

또한 최선단의 방수철판(4)에 견인 및 방향조정 기능을 갖는 견인홀(8)(8')을 천공하여 윈치(도면 미도시)와 같은 견인수단의 와이어(9)를 연결 및 그 와이어(9)에 의해 견인하면 견인력과 압입력이 동시에 작용하여 효율적인 추진력을 얻을 수 있으며 굴곡터널에서도 방향 조정이 가능하다.In addition, the wire 9 of the towing means, such as a winch (not shown), is drilled by drilling a tow hole 8 and 8 'having a towing and direction adjusting function at the upper end of the waterproof steel plate 4. When towing by 9), the traction force and the pressure input act at the same time to obtain efficient propulsion force and the direction can be adjusted in the bending tunnel.

이와 같이 절개홈(3)에 연속으로 압입완료된 상부 방수철판(4)(4')은 강관(1)(1')과의 이음부를 용접처리하므로서 강관(1)(1')과 상부 방수철판(4)(4')이 일체로 결합되어 상부면의 완전 방수가 이루어진다.Thus, the upper waterproof steel sheet 4, 4 'continuously press-fitted into the cutout groove 3 is welded to the joint with the steel pipe 1, 1' and the steel pipe 1, 1 'and the upper waterproof steel sheet. (4) (4 ') is integrally combined so that the upper surface is completely waterproof.

이와 같이 상부 방수철판(4)(4')이 용접된 강관(1)(1')의 상부 방수철판(4)(4') 하측부를 전후 방향으로 연속 절개하여 제거하고 깅관(1)(1') 내부 공간을 통하여 그 상부 방수철판(4)(4') 하측 토사를 제거하는 굴착공정을 실시한다.Thus, the lower part of the upper waterproof steel plate 4, 4 'of the steel pipe 1, 1' to which the upper waterproof steel plate 4, 4 'was welded was continuously cut in the front and rear direction, and the ging pipe 1 was removed. ') The excavation process is carried out to remove the soil under the upper waterproof steel plate 4, 4' through the inner space.

또한 터널 형성 부분이 암석층이거나 부분 암석층의 경우에는 전기한 방수철판의 연속 압입공정과 토사 굴착공정을 함께 실시하여 암반을 제거하면서 방수철판의 압입을 동시에 할 수도 있다. 예컨데 강관(1)과 강관(1')의 사이 암석층을 굴착하고 난 후 상부 방수철판(4)을 압입하고 압입된 방수철판(4)의 하부 공간을 이용하여 다시 선도 방수철판 추진방향 전면측의 암반층을 제거 굴착하고 다시 방수철판(4')을 압입하는 방법을 반복하는 방법으로 방수철판의 압입과 굴착을 동시에 실시하므로서 암반층에 있어서도 그 시공이 가능한 것이다.In addition, in the case where the tunnel formation part is a rock layer or a partial rock layer, the continuous press-fitting process of the waterproof steel sheet and the earth and sand excavation process may be performed together to remove the rock and simultaneously press-fit the waterproof steel sheet. For example, after excavating the rock layer between the steel pipe 1 and the steel pipe 1 ', the upper waterproof steel plate 4 is press-fitted and the lower space of the pressurized waterproof steel plate 4 is used again to lead the waterproof steel plate forward direction. Removal and excavation of the rock bed layer and the method of repeating the press-fitting of the waterproofing iron plate 4 'is performed simultaneously by pressing and digging the waterproofing iron plate.

이와 같이 토사가 제거되고 난 공간의 바닥면에 도 1e의 도시와 같이 하부 지지판(10)(10')을 설치하고 모든 이음부를 용접처리하여 완전 방수가 이루어지게 하고 상부 방수판과 하부 지지판(4)(4')(10)(10')의 사이에 토압지지대(11)(11')를 설치한 후,As such, the bottom support plates 10 and 10 'are installed on the bottom surface of the space from which the soil is removed, and all the joints are welded to completely waterproof the upper waterproof plate and the lower support plate (4). After installing the earth pressure support 11 (11 ') between the (4') 10 (10 '),

도 1f의 도시와 같이 강관내의 임시 토압지지대(2)(2')를 제거하므로서 본 발명의 강관 연결용 방수철판의 설치공정은 완료되는 것이다.As shown in Figure 1f by removing the temporary earth pressure support (2) (2 ') in the steel pipe installation process of the waterproof steel plate for steel pipe connection of the present invention is completed.

이와 같이 방수철판이 완료된 강관에 대하여 기존의 방식대로 철근 배근공정, 콘크리트 타설공정, 굴착공정 등을 실시하므로서 도 2의 도시와 같은 최종적인 지하터널 형성용 구조물이 설치되는 것이다.As described above, the steel pipes of which the waterproofing steel plate is completed are installed in the final underground tunnel forming structure as shown in FIG. 2 by performing the reinforcing bar reinforcement process, concrete placing process, and excavation process.

이와 같은 연속압입 방식의 방수철판 설치방법은,Such a continuous press-fit method of installing waterproof steel sheet,

일부 부분적 설치 후 여타 나머지 부분을 2차 설치하므로서 토사유실과 공사기간 지연 등 문제점이 발생하던 종래 방식과는 달리 상부 방수판의 완전 연결 설치 후 하부 방수판의 설치로 토사 유실이 없고 공정의 단순화와 공사기간의 단축으로 원가가 절감되는 효과가 있을 뿐 아니라 방수철판의 폭을 넓힐 수 있어 강관 간의 거리를 멀리 할 수 있어 비교적 원가 및 시공단가가 비싼 강관의 갯수를 줄일 수 있어 이에 의한 원가 절감의 효과도 있다.Unlike the conventional method in which problems such as earth and sand room and construction period were delayed by installing the second part after the partial installation, there was no earth and sand loss due to the installation of the bottom waterproof plate after fully connecting the upper waterproof plate and simplifying the process. In addition to reducing costs by shortening the construction period, it is possible to widen the width of the waterproof steel sheet, so that the distance between the steel pipes can be farther away, thereby reducing the number of steel pipes, which are relatively expensive and costly to construct, thus reducing the cost. There is also.

도 1a ~ 도 1f는 본 발명의 강관 연결용 방수철판의 설치공정별 설명도로서,1A to 1F are explanatory diagrams for each installation process of a waterproof steel plate for connecting a steel pipe according to the present invention;

도 1a는 원형 및 각강관의 압입설명도Figure 1a is an explanatory drawing of the round and angular steel pipe

도 1b는 강관 내부에 임시 토압 지지대를 설치한 설명도1B is an explanatory diagram in which a temporary earth pressure support is installed inside a steel pipe

도 1c는 강관의 상측부에 절개홈을 형성한 상태의 설명도 및 일부 상세도1C is an explanatory view and a partial detailed view of a state where a cutout is formed in an upper side of a steel pipe

도 1d는 절개홈에 대한 상부 방수철판의 압입 설명도 및 일부 상세도Figure 1d is an explanatory view and some detailed view of the indentation of the upper waterproof steel sheet for the incision groove

도 1e는 상하 방수철판의 설치 후 토압지지대를 설치한 상태의 설명도1E is an explanatory view of a state where the earth pressure support is installed after the installation of the upper and lower waterproof steel plate

도 1f는 강관내의 임시 토압지지대를 제거한 상태의 설명도1f is an explanatory view of a state in which the temporary earth pressure support in the steel pipe is removed

도 2는 본 발명 강관 연결용 방수철판이 설치된 상태의 지하터널 구조물 예시도2 is an exemplary view of an underground tunnel structure in a state where the waterproof steel plate for connection to the present invention steel pipe is installed

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

1,1' : 강관 2,2' : 임시 토압 지지대1,1 ': steel pipe 2,2': temporary earth pressure support

3 : 절개홈 4,4' : 상부 방수철판3: incision groove 4,4 ': upper waterproof steel plate

5 : 가이드빔 6 : 캡5: guide beam 6: cap

7 : 유압잭 8,8' : 견인홈7: Hydraulic jack 8,8 ': towing groove

9 : 와이어 10,10' : 하부 지지판9: wire 10,10 ': lower support plate

11,11' : 토압지지대11,11 ': Earth pressure support

Claims (6)

지하터널 예정면에 지하터널 구조물을 형성키 위해 예전면을 따라 일정한 간격으로 유압잭 및 추진보조관을 이용하여 다수의 강관을 압입시키고, 각각의 강관을 연결 및 방수키 위해 용접 설치되는 방수철판을 설치하는 설치방법에 있어서, In order to form the underground tunnel structure on the underground tunnel, press the steel pipes using hydraulic jacks and propulsion auxiliary pipes at regular intervals along the former surface, and install waterproof steel plates that are welded and installed to connect and waterproof each steel pipe. In the installation method, 상기 압입된 강관의 내측 토사를 굴착하고 절개를 하기 위한 강관 보강용 임시 토압지지대를 설치하는 공정과,Installing a temporary earth pressure support for steel pipe reinforcement for excavating and cutting the inner soil of the press-fitted steel pipe; 강관의 상측부를 절개하여 상부 방수철판을 압입하기 위한 절개홈을 형성하는 공정과,Cutting the upper part of the steel pipe to form a cutting groove for pressing the upper waterproof steel plate; 강관의 전면에 가이드빔을 설치 후 상기 가이드빔에 상부 방수철판을 위치시키고 캡을 씌운 후 유압잭에 의해 강관의 절개홈을 따라 상부 방수철판을 압입 추진시키고, 추진되어 발생한 후측공간에 다시 새로운 방수철판을 위치시켜 전후 방수철판을 용접 후 전기한 방법으로 다시 압입 추진시켜 이미 압입된 방수철판과 동시에 추진하는 방법을 반복 설치 후 강관과 압입된 상부 방수철판을 용접하는 상부 방수철판 설치공정과, After installing the guide beam on the front of the steel pipe, place the upper waterproof steel plate on the guide beam and cover the cap and press-propelled the upper waterproof steel sheet along the incision groove of the steel pipe by the hydraulic jack, and the new waterproof steel plate again in the rear space generated by the propulsion. The upper waterproof steel plate installation process of welding the steel pipe and the upper waterproof steel plate after repeating the method of pressing and pushing the front and rear waterproofing iron plate again by welding and then pushing and pushing simultaneously with the already indented waterproof steel plate. 강관 하측부를 절개하고 상부 방수철판 하측의 측면토사를 굴착 후, 절개 굴착된 강관의 하측부에 하부 지지판을 강관과 용접하는 하부 지지판 설치공정과,A lower support plate installation process of cutting the lower part of the steel pipe and excavating the side soil under the upper waterproof steel plate, and then welding the lower support plate to the lower part of the cut and excavated steel pipe; 상부 방수철판과 하부 지지판의 사이에 토압지지대를 설치하고 강관내에 설치된 임시 토압지지대를 제거하는 공정으로 이루어짐을 특징으로 하는 강관압입식 지하터널 구조물 형성공법에 있어서의 강관연결용 방수철판의 설치방법.A method of installing a waterproof steel plate for steel pipe connection in a steel pipe pressurized underground tunnel structure forming method, comprising: installing a earth pressure support between an upper waterproof steel plate and a lower support plate and removing a temporary earth pressure support installed in the steel pipe. 삭제delete 삭제delete 삭제delete 삭제delete 제 1항에 있어서,The method of claim 1, 최선단의 상부 방수철판에 견인 및 방향조정 기능을 갖는 견인홀을 형성하고, 견인수단에 연결된 와이어를 견인홀에 연결하여 견인 및 추진되는 상부 방수철판에 견인력과 압입력이 동시에 작용되게 하면서 방향조정이 가능하게 함을 특징으로 하는 강관압입식 지하터널 구조물 형성공법에 있어서의 강관연결용 방수철판의 설치방법.Towing and directional adjustment function is formed on the upper waterproof steel plate at the uppermost stage, and the direction is adjusted by connecting the wire connected to the traction means to the traction hole so that the traction force and the pressure input are simultaneously applied to the upper waterproof steel plate being towed and pushed. A method of installing a waterproof steel plate for steel pipe connection in a steel pipe pressurized underground tunnel structure forming method characterized by enabling this.
KR1020090050838A 2009-06-09 2009-06-09 Method for installing waterproofing steel plate in construction of undergound tunnel KR101069705B1 (en)

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CN200910246922XA CN101922293B (en) 2009-06-09 2009-12-01 Method for installing waterproof steel plate in construction of underground tunnel

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KR101594085B1 (en) 2015-07-27 2016-02-15 원화코퍼레이션(주) Underground structure construction method using mail-pipe and sub-pipe
KR20200091114A (en) * 2019-01-22 2020-07-30 주식회사 인스코엔지니어링 Construction method of underground tunnel forming structure
KR102254156B1 (en) * 2019-01-22 2021-05-20 주식회사 엔티에스기술연구소 Construction method of underground tunnel forming structure
KR102087964B1 (en) * 2019-05-11 2020-03-11 주식회사 인스코엔지니어링 Construction method of underground tunnel forming structure
KR102156874B1 (en) 2020-05-19 2020-09-16 유한회사 일우종합건설 Construction method to prevent lower movement of small pipes that transfer the upper load of the steel composite concrete for tunnel excavation to the lower part
KR102610909B1 (en) 2023-06-22 2023-12-06 (주)신승이앤씨 Method and structure of steel pipe propulsion using anchor installation inside steel pipe to prevent sinking

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