KR20220028563A - Method for forming a two-way girder using press-fit steel pipes in underground structure construction - Google Patents

Method for forming a two-way girder using press-fit steel pipes in underground structure construction Download PDF

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KR20220028563A
KR20220028563A KR1020200109717A KR20200109717A KR20220028563A KR 20220028563 A KR20220028563 A KR 20220028563A KR 1020200109717 A KR1020200109717 A KR 1020200109717A KR 20200109717 A KR20200109717 A KR 20200109717A KR 20220028563 A KR20220028563 A KR 20220028563A
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steel pipe
girder
forming
press
slab
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김정윤
윤용직
김경곤
김현곤
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김경혜
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00Independent underground or underwater structures; Retaining walls
    • E02D29/045Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/16Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material
    • E04B1/165Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material with elongated load-supporting parts, cast in situ
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/24Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
    • 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

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

Abstract

The present invention relates to a method for forming a hash-shaped girder using a press-fit steel pipe in underground structure construction. A slab and a girder are formed by using a press-fit steel pipe pressed in the ground to construct various underground structures such as a tunnel or an underpass. Specifically, the method for forming a girder is remarkably improved to reduce the thickness of a slab and form a two-way girder integrated with the slab in a shape suitable to the shape of the underground structure. Therefore, the method for forming a girder using a press-fit steel pipe enables a user to construct the underground structure in the desired shape which has a stable and sound structure and can perfectly perform a role of bearing a pressure of an obstruction or a piled soil pressure by the two-way girder integrated with the slab later. Moreover, various shapes of shear connectors are welded and installed on the inner side of the press-fit steel pipe corresponding to the upper side of a mold for a slab when the girder is formed. Accordingly, when concrete is cured, the steel pipe which is a simple temporary material is integrated with the concrete, a main structure such that it is possible to obtain a permanent composite concrete structure which is structurally sound.

Description

지하구조물 축조에 있어서의 압입강관을 이용한 2방향 거더 형성방법{Method for forming a two-way girder using press-fit steel pipes in underground structure construction}Method for forming a two-way girder using press-fit steel pipes in underground structure construction

본 발명은 지하구조물 축조에 있어서의 압입강관을 이용한 2방향 거더 형성방법에 관한 것으로, 더욱 상세하게는 터널이나 지하차로 등의 각종 지하구조물을 축조하기 위해서 지중에 압입되는 압입강관을 이용하여 슬라브 및 거더를 형성하되, 특히 거더 형성방법을 획기적으로 개선하여서,The present invention relates to a method of forming a two-way girder using a press-fitted steel pipe in the construction of an underground structure, and more particularly, to construct various underground structures such as tunnels and underground lanes, slabs and Forming a girder, in particular, by dramatically improving the method of forming a girder,

슬라브 두께를 줄여 줄 수 있으면서도 슬라브와 일체화되는 2방향 형태의 거더를 지하구조물 형태에 알맞은 형상으로 형성하여 줌으로써 추후 슬라브와 일체화되는 2방향 형태의 거더에 의해 지장물 또는 상재토압의 압력을 견디는 역활을 완벽하게 수행할 수 있는 구조적으로 안정적인 견실한 형태의 지하구조물을 축조할 수 있도록 함은 물론,While it can reduce the thickness of the slab, it forms a two-way girder integrated with the slab into a shape suitable for the shape of the underground structure. In addition to making it possible to build a structurally stable and solid underground structure that can perform perfectly,

2방향 거더 형성시 슬라브형성용 거푸집 상측에 해당되는 압입강관 내측으로 다양한 형태의 전단연결재를 용접설치하여 콘크리트 양생시 단순 가시설재인 강관을 메인 구조인 콘크리트와 일체화시켜 구조적으로 더욱 견실한 영구적 합성 콘크리트구조물을 얻을 수 있도록 한 지하구조물 축조에 있어서의 압입강관을 이용한 2방향 거더 형성방법에 관한 것이다.When forming a two-way girder, various types of shear connectors are welded to the inside of the press-fitted steel pipe corresponding to the upper side of the slab forming form, and when curing concrete, the steel pipe, a simple temporary material, is integrated with the main structure of concrete, resulting in structurally stronger permanent synthetic concrete. It relates to a method of forming a two-way girder using a press-fitted steel pipe in the construction of an underground structure that allows a structure to be obtained.

지하터널을 형성하기 위해서는 터널 외부로부터 발생하는 응력에 견딜 수 있는 터널 구조물이 설치되는 바, 종래의 지하터널 형성용 구조물 설치방법들은 세부공법에서는 차이점이 있지만 크게 보면 대부분 강관을 지중에 압입하면서 내부 토사를 굴착하여 제거하하는 공정과;In order to form an underground tunnel, a tunnel structure capable of withstanding the stress generated from the outside of the tunnel is installed. Although there are differences in the detailed construction methods of the conventional methods for installing structures for underground tunnel formation, in general, most of them press-fit steel pipes into the ground to create internal soil. The process of excavating and removing;

상기 압입된 강관 내부에 내력재를 다양한 형태로 용접하여 고정설치함으로써 미리 내력을 보강하는 공정과;Reinforcing the load-bearing force in advance by welding and fixing the load-bearing material in various shapes to the inside of the press-fitted steel pipe;

상기 내력재에 의해 내력이 보강된 강관들의 상부 양측내면을 내부에서 절개하고 방수철판으로 연결하고,The inner surfaces of both upper sides of the steel pipes reinforced by the load-bearing material are cut from the inside and connected with a waterproof steel plate,

강관들의 하부 양측내면을 내부에서 절개하여 철판으로 슬라브형성용 거푸집을 설치하여 슬라브형성부를 형성하고,The slab forming part is formed by cutting the inner surfaces of both lower sides of the steel pipes from the inside and installing a slab forming form with an iron plate,

측벽의 경우에는 방수철판과 측벽형성용 거푸집을 설치하고 내부를 단계적으로 굴착하면서 토압지지대를 설치한 다음 측벽형성부를 형성한 후 철근배근(미도시)하고 강관내에 콘크리트를 타설하고 양생시키는 공정과;In the case of a side wall, a step of installing a waterproof steel plate and a form for forming a side wall, installing an earth pressure support while excavating the inside step by step, forming a side wall forming part, reinforcing reinforcement (not shown), pouring concrete in a steel pipe, and curing;

상기 강관 내부에 주입된 콘크리트 양생 후 지하공간부를 굴착하면서 강관 하측이나 슬라브형성용 거푸집이나 측벽형성용 거푸집을 제거하는 공정과;removing the formwork for forming the lower side of the steel pipe or the slab or sidewall while excavating the underground space after curing the concrete injected into the steel pipe;

상기 굴착된 지하공간부 하측에 바닥면을 형성하는 공정을 수행하여 지하구조물을 형성하고 있다.An underground structure is formed by performing a process of forming a floor surface on the lower side of the excavated underground space.

그런데 이들 현재까지 안출된 지하터널 형성용 구조물 설치방법들은 슬라브및 거더의 형성방법이 매우 단순하여 슬라브의 두께를 얇게 형성하면 구조적으로 안전하지 못하기 때문에 실지로 슬라브의 두께가 필요이상을 두껍게 형성되어 지는 관계로 철근이나 시멘트 등의 재료의 낭비를 가져왔다.However, these methods for installing structures for underground tunnel formation devised so far are structurally unsafe if the slab thickness is thinned because the formation method of the slab and girder is very simple. This resulted in wastage of materials such as reinforcing bars and cement.

이에 현재 슬라브의 두께폭을 얇게 하면서도 거더 형성작업이 매우 용이하며 지장물 또는 상재토압의 압력을 견디는 역활을 완벽하게 수행할 수 있어 구조적으로 안정적인 견실한 구조의 지하구조물을 축조할 수 있는 개선된 방법의 슬라브 및 거더 형성방법이 절실히 요구되고 있는 상황이다.Therefore, the current slab thickness is thin, the girder formation work is very easy, and it can perfectly perform the role of withstanding the pressure of obstacles or overburden pressure, so it is an improved method to build an underground structure with a structurally stable and strong structure There is an urgent need for a method of forming slabs and girders.

본 발명은 상기와 같은 종래의 제반문제점들을 감안하여 안출한 것으로, 터널이나 지하차로와 같은 각종 지하구조물을 축조하기 위해서 지중에 압입되는 압입강관을 이용하여 슬라브 및 거더를 형성하되, 특히 거더 형성방법을 획기적으로 개선하여서,The present invention was devised in consideration of the problems of the related art as described above, and in order to construct various underground structures such as tunnels and underground lanes, slabs and girders are formed using press-fitted steel pipes press-fitted into the ground, in particular, a method of forming a girder by dramatically improving

슬라브 두께를 줄여 줄 수 있으면서도 슬라브와 일체화되는 2방향 형태의 거더를 지하구조물 형태에 알맞은 형상으로 형성하여 줌으로써 추후 슬라브와 일체화되는 2방향 형태의 거더에 의해 지장물 또는 상재토압의 압력을 견디는 역활을 완벽하게 수행할 수 있는 구조적으로 안정적인 견실한 원하는 형태의 지하구조물을 축조할 수 있도록 하여 주고자 함에 그 목적을 둔 것이다.While it can reduce the thickness of the slab, it forms a two-way girder integrated with the slab into a shape suitable for the shape of the underground structure. The purpose is to enable the construction of a structurally stable and stable underground structure of the desired shape that can be performed perfectly.

여기에 더불어 본 발명은 2방향 거더 형성시 압입 강관 내면에 다양한 형태의 전단연결재를 용접설치하여 콘크리트 양생시 단순 가시설재인 강관을 메인 구조인 콘크리트와 일체화시켜 줌으로써 구조적으로 더욱 견실한 영구적 합성 콘크리트구조물로된 지하구조물을 얻을 수 있도록 함에 또 다른 목적이 있다.In addition to this, the present invention provides a structurally more robust permanent synthetic concrete structure by welding and installing various types of shear connectors on the inner surface of the press-fitted steel pipe when forming a two-way girder to integrate the steel pipe, a simple temporary material, with the main structure, concrete, during concrete curing. There is another purpose to be able to obtain an underground structure of

상기 해결하고자하는 과제에 기재된 목적을 달성하기 위한 본 발명의 지하구조물 축조에 있어서의 압입강관을 이용한 2방향 거더 형성방법은, 기본적으로 소정길이를 가지며 직경이 큰 다수의 대구경 강관을 유압잭 및 추진보조관을 이용하여 지하터널 시공면의 형태에 따라 아치형 또는 사각형을 이루도록 길게 이여붙여 가면서 직선 또는 곡선으로 압입시키면서 내부 토사를 굴착하여 제거하는 공정과;The method for forming a two-way girder using a press-fitted steel pipe in the construction of an underground structure of the present invention for achieving the object described in the above-mentioned problem is basically a plurality of large-diameter steel pipes having a predetermined length and a large diameter with a hydraulic jack and propulsion assistance A process of excavating and removing internal soil by using a pipe to form an arcuate or quadrangular shape according to the shape of the underground tunnel construction surface and press-in in a straight or curved shape;

상기 압입된 강관 내부에 내력재를 다양한 형태로 용접하여 고정설치함으로써 미리 내력을 보강하는 공정과;Reinforcing the load-bearing strength in advance by welding and fixing the load-bearing material in various shapes to the inside of the press-fitted steel pipe;

상기 내력재에 의해 내력이 보강된 강관들의 상부 양측내면을 내부에서 절개하고 방수철판으로 연결하고,The inner surfaces of both upper sides of the steel pipes reinforced by the load-bearing material are cut from the inside and connected with a waterproof steel plate,

강관들의 하부 양측내면을 내부에서 절개하여 철판으로 슬라브형성용 거푸집을 설치하여 슬라브형성부를 형성하고,The slab forming part is formed by cutting the inner surfaces of both lower sides of the steel pipes from the inside and installing a slab forming form with an iron plate,

측벽의 경우에는 방수철판과 측벽형성용 거푸집 설치하고 내부를 단계적으로 굴착하면서 토압지지대를 설치한 다음 측벽형성부를 형성한 후 철근배근(미도시)하고 강관내에 콘크리트를 타설하고 양생시키는 공정과;In the case of a side wall, a step of installing a waterproof steel plate and a form for forming a side wall, installing an earth pressure support while excavating the inside step by step, forming a side wall forming part, reinforcing reinforcement (not shown), pouring concrete in the steel pipe, and curing;

상기 강관 내부에 주입된 콘크리트 양생 후 지하공간부를 굴착하면서 강관 하측이나 슬라브형성용 거푸집이나 측벽형성용 거푸집을 제거하는 공정과;removing the formwork for forming the lower side of the steel pipe or the slab or sidewall while excavating the underground space after curing the concrete injected into the steel pipe;

상기 굴착된 지하공간부 하측에 바닥면을 형성하는 공정을 수행하여 지하구조물을 형성하는 지하구조물 설치공법을 수행하되,Performing an underground structure installation method of forming an underground structure by performing a process of forming a floor surface on the lower side of the excavated underground space,

상기 지중에 길게 압입된 강관 내부에서 슬라브형성부 상측으로 강관끼리 소정 간격으로 횡으로 연결되도록 강관 측면을 절개하고 횡방향 거더형성용 거푸집을 설치하여 횡방향 거더형성부를 형성하여서,In the steel pipe long press-fitted into the underground, the side of the steel pipe is cut so that the steel pipes are horizontally connected at a predetermined interval above the slab forming part, and a form for forming a transverse girder is installed to form a transverse girder forming part,

추후 철근배근하고 콘크리트를 양생시키면 슬라브 상측 강관 내부의 콘크리트가 종방향거더가 되고 횡방향 거더형성부내의 콘크리트가 횡방향거더가 되어 2방향 형태의 거더가 일체로 형성된 구조물이 축조되도록 이루어진다.After reinforcing reinforcement and curing the concrete, the concrete inside the steel pipe above the slab becomes the longitudinal girder, and the concrete in the transverse girder forming part becomes the transverse girder, so that the structure in which the two-way girder is integrally formed is built.

또한, 본 발명은 상기 2방향 거더 형성시 슬라브형성용 거푸집 상측에 해당되는 압입강관 내측으로 다양한 형태의 전단연결재를 용접설치하여 콘크리트 양생시 단순 가시설재인 강관을 메인 구조인 콘크리트와 일체화시켜 구조적으로 더욱 견실한 영구적 합성 콘크리트구조물을 얻을 수 있도록 이루어진다.In addition, in the present invention, when forming the two-way girder, various types of shear connectors are welded to the inside of the press-fitted steel pipe corresponding to the upper side of the slab forming form, so that the steel pipe, which is a simple temporary facility, is integrated with the concrete, which is the main structure, when curing concrete. It is made to obtain a more robust permanent composite concrete structure.

본 발명은 터널이나 지하차로와 같은 각종 지하구조물을 축조하기 위해서 지중에 압입되는 압입강관을 이용하여 슬라브 및 거더를 형성하되, The present invention forms slabs and girders using press-fitted steel pipes press-fitted into the ground to construct various underground structures such as tunnels and underground lanes,

상기 지중에 길게 압입된 강관 내부에서 슬라브형성부 상측으로 강관끼리 소정 간격으로 횡으로 연결되도록 강관 측면을 절개하고 횡방향 거더형성용 거푸집을 설치하여 횡방향 거더형성부를 형성하여서,In the steel pipe long press-fitted into the underground, the side of the steel pipe is cut so that the steel pipes are horizontally connected at a predetermined interval above the slab forming part, and a form for forming a transverse girder is installed to form a transverse girder forming part,

추후 철근배근하고 콘크리트를 양생시키면 슬라브 상측 강관 내부의 콘크리트가 종방향거더가 되고 횡방향 거더형성부내의 콘크리트가 횡방향거더가 되어 2방향 형태의 거더가 일체로 형성된 지하구조물을 얻는 것이어서,After reinforcing reinforcement and curing the concrete, the concrete inside the steel pipe above the slab becomes the longitudinal girder, and the concrete in the transverse girder forming part becomes the transverse girder.

거더 형성작업이 매우 용이하며, 슬라브 상측으로 일체화되도록 형성된 2방향 형태의 거더에 의해 지장물 또는 상재토압의 압력을 견디는 역활을 완벽하게 수행할 수 있으므로 구조적으로 안정적인 견실한 구조의 터널이나 지하차로를 축조할 수 있는 것은 물론,It is very easy to form a girder, and the two-way girder formed to be integrated with the upper side of the slab can perfectly perform the role of withstanding the pressure of obstacles or the upper earth pressure. Of course it can be built,

슬라브 상측으로 일체화되도록 형성된 2방향 형태의 거더의 존재로 인해 슬라브 형성 두께를 줄여 주어도 구조적으로 전혀 이상이 없으므로 철근이나 시멘트 등의 재료의 낭비를 줄여 줄 수 있다.Even if the thickness of the slab is reduced due to the existence of a two-way girder formed to be integrated with the upper side of the slab, there is no structural problem at all, so the waste of materials such as reinforcing bars or cement can be reduced.

그리고, 거더가 슬라브 상측으로 위치되는 것이어서 터널이나 지하차로의 상측 내부면이 자연스럽게 매끄럽게 형성되어지는 이점이 있는 것이다.And, since the girder is located above the slab, there is an advantage in that the upper inner surface of the tunnel or underground road is naturally and smoothly formed.

그러는 한편 본 발명은 거더 형성시 슬라브형성용 거푸집 상측에 해당되는 압입강관 내측으로 다양한 형태의 전단연결재를 용접설치함으로써 콘크리트 양생시 단순 가시설재인 강관을 메인 구조인 콘크리트와 일체화시켜 줄 수 있기때문에 구조적으로 더욱 견실한 영구적 합성콘크리트구조물을 얻을 수 있는 이점도 있다.On the other hand, in the present invention, when the girder is formed, various types of shear connectors are welded to the inside of the press-fitted steel pipe corresponding to the upper side of the slab forming form, so that the steel pipe, which is a simple temporary material, can be integrated with the concrete, which is the main structure, when curing concrete. There is also the advantage of obtaining a more robust permanent composite concrete structure.

따라서, 본 발명은 여러 가지 이점이 동시에 발휘되는 것이어서 튼튼하고 견고하며 방수까지도 완벽하여 구조적으로도 매우 안전한 지하구조물을 축조할 수 있는 매우 획기적인 발명임이 분명하다.Therefore, it is clear that the present invention is a very innovative invention capable of constructing an underground structure that is strong, strong, waterproof, and structurally very safe because various advantages are exhibited at the same time.

도 1 내지 도 6b는 본 발명의 일 실시예인 슬라브 상측으로 2방향 형태의 거더를 일체로 형성하기 위한 상태를 설명하기 위한 도면으로서,
도 1의 (a)는 강관 압입상태도.
도 1의 (b)는 내력재 설치 및 방수철판을 설치하기 위한 상부절개홈을 형성한 상태도.
도 1의 (c)는 방수철판의 설치상태도.
도 1의 (d)는 슬라브형성부 및 종방향 거더형성부를 형성한 상태도.
도 2a는 강관 정면에서 본 횡방향 거더형성부를 형성한 상태도.
도 2b는 강관 측면에서 본 횡방향 거더형성부를 형성한 상태도.
도 2c는 도2a 및 도2b의 입체 사시도.
도 3은 측벽형성부를 형성한 상태도.
도 4는 강관내부에 전단연결재를 설치한 상태도.
도 5a는 내부에 철근 배근후 콘크리트를 양생하고 바닥면을 형성한 상태도.
도 5b는 슬라브 상측으로 우물정차 형태의 거더를 일체로 형성한 상태를 보인 입체 사시도.
도 6a는 지하공간부 측의 강관 하부 및 거푸집을 제거한 상태도.
도 6b는 강관 하부 및 거푸집을 제거한 상태를 보인 입체 사시도.
도 7은 양측외면에 미리 방수철판을 용접한 후추진 강관을 선추진 강관사이에 압입하여 방수철판을 설치하는 상태를 보인 도면.
도 8은 양측 외면에 미리 방수철판과 슬라브형성용 거푸집을 용접한 후추진 강관사이에 압입하여 방수철판과 슬라브형성용 거푸집을 동시에 설치하는 상태를 보인 도면.
1 to 6b are views for explaining a state for integrally forming a girder of a two-way form upwards on the slab, which is an embodiment of the present invention,
Figure 1 (a) is a steel pipe press-fit state.
Figure 1 (b) is a state diagram of forming an upper cut-out groove for installing a load-bearing material and a waterproof iron plate.
Figure 1 (c) is a view of the installation state of the waterproof iron plate.
Figure 1 (d) is a state diagram in which the slab forming part and the longitudinal girder forming part are formed.
Figure 2a is a state diagram in which a transverse girder forming part viewed from the front of the steel pipe is formed.
Figure 2b is a state view in which a transverse girder forming part viewed from the side of the steel pipe is formed.
Fig. 2c is a three-dimensional perspective view of Figs. 2a and 2b;
3 is a state diagram in which a side wall forming part is formed.
Figure 4 is a state view of the shear connector installed inside the steel pipe.
Figure 5a is a state diagram after curing the concrete after reinforcing reinforcement inside and forming the bottom surface.
Figure 5b is a three-dimensional perspective view showing a state in which a girder in the form of a well stop is integrally formed on the upper side of the slab.
Figure 6a is a state diagram in which the lower part of the steel pipe and the formwork on the side of the underground space are removed.
Figure 6b is a three-dimensional perspective view showing a state in which the lower part of the steel pipe and the form are removed.
7 is a view showing a state in which the waterproof iron plate is installed by press-fitting between the pre-propelled steel pipes, the fuchu-jin steel pipe having previously welded the waterproof iron plate on both outer surfaces thereof;
8 is a view showing a state in which the waterproof iron plate and the slab forming form are installed at the same time by press-fitting between the steel pipe in which the waterproof iron plate and the slab forming form are previously welded to both outer surfaces.

이하, 상기 해결하고자 하는 과제에 기재된 목적을 달성하기 위한 본 발명의 일 실시예들을 첨부도면에 의거 상세하게 설명한다. 이하에서 설명되는 일 실시예는 본 발명의 이해를 돕기 위하여 예시적으로 나타낸 것이며, 본 발명은 여기서 설명되는 일 실시예와 다르게 다양하게 변형되어 실시될 수 있음이 이해되어야 할 것이다. 다만, 본 발명을 설명함에 있어서 관련된 공지 기능 혹은 구성요소에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우 그 상세한 설명 및 구체적인 도시를 생략한다. 또한, 첨부된 도면은 발명의 이해를 돕기 위하여 실제 축척대로 도시된 것이 아니라 일부 구성요소의 치수가 과장되게 도시될 수 있다.Hereinafter, one embodiment of the present invention for achieving the object described in the problem to be solved will be described in detail based on the accompanying drawings. It should be understood that one embodiment described below is illustratively shown to aid understanding of the present invention, and the present invention may be implemented with various modifications different from the one embodiment described herein. However, in the description of the present invention, if it is determined that a detailed description of a related known function or component may unnecessarily obscure the gist of the present invention, the detailed description and specific illustration thereof will be omitted. In addition, the accompanying drawings are not drawn to scale in order to help understanding of the invention, but dimensions of some components may be exaggerated.

본 발명은 터널이나 지하차도와 같은 각종 지하구조물을 축조하기 위해서 지중에 압입되는 압입강관을 이용하여 슬라브 및 거더를 형성하되, 슬라브 형성 두께를 줄여 주어 철근이나 시멘트 등의 재료의 낭비를 줄여 주는 효과가 있으면서도, 슬라브와 일체화되는 2방향 형태의 거더를 형성하여 줌으로써 추후 슬라브와 일체화되는 2방향 형태의 거더에 의해 지장물 또는 상재토압의 압력을 견디는 역활을 완벽하게 수행하는 견실한 구조의 지하구조물을 축조할 수 있는 것에 가장 큰 특징이 있는 것이다.The present invention forms slabs and girders using press-fitted steel pipes press-fitted into the ground to construct various underground structures such as tunnels or underpasses, but reduces the thickness of the slab formation, thereby reducing the waste of materials such as reinforcing bars and cement However, by forming a two-way girder that is integrated with the slab, a solid structure underground structure that perfectly performs the role of withstanding the pressure of obstacles or overburden pressure by the two-way type of girder that is integrated with the slab in the future. What can be built has the biggest characteristic.

이에 이와 같은 특징이 있는 본 발명의 일 실시예를 첨부도면 도 1 내지 도 6b에 의거 설명한다.Accordingly, an embodiment of the present invention having the above characteristics will be described with reference to the accompanying drawings 1 to 6b.

본 발명은 소정길이를 가지며 직경이 큰 다수의 대구경 강관(10)을 유압잭 및 추진보조관을 이용하여 지하터널 시공면의 형태에 따라 아치형 또는 사각형을 이루도록 길게 이여붙여 가면서 직선 또는 곡선으로 압입시키면서 내부 토사를 굴착하여 제거하는 공정과;According to the present invention, a number of large-diameter steel pipes 10 having a predetermined length and large diameters are pressed in a straight line or a curved line while being pressed to form an arcuate or quadrangular shape depending on the shape of the underground tunnel construction surface using a hydraulic jack and a propulsion auxiliary pipe. excavating and removing soil;

상기 압입된 강관(10) 내부에 내력재(20)를 다양한 형태로 용접하여 고정설치함으로써 미리 내력을 보강하는 공정과;a step of reinforcing the load-bearing force in advance by welding and fixing the load-bearing material 20 in various shapes to the inside of the press-fitted steel pipe 10;

상기 내력재(20)에 의해 내력이 보강된 강관(10)들의 상부 양측내면을 내부에서 절개하고 방수철판(30)으로 연결하고,The inner surfaces of both upper sides of the steel pipes 10 whose bearing strength is reinforced by the bearing material 20 are cut from the inside and connected with a waterproof iron plate 30,

강관(10)들의 하부 양측내면을 내부에서 절개하여 철판으로 슬라브형성용 거푸집(40)을 설치하여 슬라브형성부(100)를 형성하고,The slab forming part 100 is formed by cutting the inner surfaces of both lower sides of the steel pipes 10 from the inside and installing the slab forming form 40 with an iron plate,

측벽(2000)의 경우에는 강관의 하측에 측벽형성용 절개홈(13)을 형성한 후 이를 통해 방수철판(30)과 측벽형성용 거푸집(40) 설치하고 내부를 단계적으로 굴착하면서 토압지지대(50)를 설치한 다음 측벽형성부(200)를 형성한 후 철근배근(미도시)하고 강관(10)내에 콘크리트를 타설하고 양생시키는 공정과;In the case of the side wall 2000, after forming the cut-out groove 13 for forming the side wall on the lower side of the steel pipe, the waterproof iron plate 30 and the form 40 for forming the side wall are installed through this, and the earth pressure support 50 is excavated in stages. ), then forming the side wall forming part 200, reinforcing reinforcement (not shown), pouring concrete in the steel pipe 10, and curing;

상기 강관(10) 내부에 주입된 콘크리트 양생 후 지하공간부(1)를 굴착하면서 슬강관(10) 하측이나 슬라브형성용 거푸집(40)이나 측벽형성용 거푸집(40)을 제거하는 공정과;After curing the concrete injected into the steel pipe 10, the process of excavating the underground space portion 1 and removing the lower side of the knee steel pipe 10, the slab forming form 40 or the side wall forming form 40;

상기 굴착된 지하공간부(1) 하측에 바닥면(3000)을 형성하는 공정을 수행하여 지하구조물을 형성하는 지하구조물 설치공법을 수행하되,An underground structure installation method of forming an underground structure by performing a process of forming the floor surface 3000 on the lower side of the excavated underground space part 1 is performed,

특히, 도 1의 (d)와 같이 상기 압입된 강관(10) 내부에서 슬라브형성부(100) 상측으로,In particular, as shown in Fig. 1 (d), from the inside of the press-fitted steel pipe 10 to the upper side of the slab forming part 100,

도 2a 내지 도2c에서 보는 바와 같이 상기 강관(10)끼리 소정 간격으로 띄엄띄엄 횡방향으로 연결되도록 슬라브형성부(100) 상측에 해당하는 강관(10) 측면을 절개하고 횡방향 거더형성용 거푸집(44)을 설치하여서 횡방향 거더형성부(170)를 형성하여서,As shown in FIGS. 2A to 2C, the side of the steel pipe 10 corresponding to the upper side of the slab forming part 100 is cut so that the steel pipes 10 are intermittently connected in the transverse direction at predetermined intervals, and a formwork for forming a transverse girder ( 44) to form a transverse girder forming part 170,

이후 상기한 바와 같은 후공정 즉, 도 3 내지 도 6a에서 보는 바와 같이 강관(10)의 하측에 측벽형성용 절개홈(13)을 형성한 후 이를 통해 방수철판(30)과 측벽형성용 거푸집(40) 설치하고 내부를 단계적으로 굴착하면서 토압지지대(50)를 설치한 다음 측벽형성부(200)를 형성한 후 철근배근(미도시)하고 강관(10)내에 콘크리트를 타설하고 양생시키는 공정과;After that, after forming the cut-out groove 13 for forming the side wall on the lower side of the steel pipe 10 as shown in the post-process, that is, FIGS. 3 to 6A , the waterproof iron plate 30 and the formwork for forming the side wall ( 40) The process of installing and excavating the interior step by step, installing the earth pressure support 50, and then forming the side wall forming part 200, reinforcing reinforcement (not shown), pouring concrete in the steel pipe 10, and curing;

상기 강관(10) 내부에 주입된 콘크리트 양생 후 지하공간부(1)를 굴착하면서 슬강관(10) 하측이나 슬라브형성용 거푸집(40)이나 측벽형성용 거푸집(40)을 제거하는 공정을 순차적으로 수행하면 도 6b와 같이 슬라브(1000) 상측으로 강관(10) 내부에 양생되는 콘크리트에 의해 형성되는 종방향거더(1500)와 횡방향 거더형성부(170)내의 콘크리트에 의해 형성되는 횡방향 거더(1700)에 의해 2방향 거더가 일체로 형성된 지하구조물이 축조되도록 한 것이다.After curing the concrete injected into the steel pipe 10, the process of removing the lower side of the knee steel pipe 10, the slab forming form 40 or the side wall forming form 40 while excavating the underground space part 1 is sequentially performed. When carried out, as shown in Figure 6b, the longitudinal girder 1500 formed by the concrete cured inside the steel pipe 10 toward the upper side of the slab 1000 and the transverse girder formed by the concrete in the transverse girder forming part 170 ( 1700) to build an underground structure in which a two-way girder is integrally formed.

상기와 같이 본 발명은 터널이나 지하차로와 같은 각종 지하구조물을 축조하기 위해서 지중에 압입되는 압입 강관(10)을 이용하여 슬라브(1000) 및 거더를 형성하되, As described above, the present invention forms a slab 1000 and a girder using a press-fitted steel pipe 10 that is press-fitted into the ground to build various underground structures such as tunnels or underground lanes,

먼저 압입된 강관(10) 내부에서 슬라브형성부(100) 상측으로 강관(10) 끼리 소정 간격으로 띄엄띄엄 횡으로 연결되도록 강관(10) 측면을 절개하고 횡방향 거더형성용 거푸집(44)을 설치하여서 횡방향 거더형성부(170)를 형성하여서,First, in the press-fitted steel pipe 10, the side of the steel pipe 10 is cut so that the steel pipes 10 are sparsely connected horizontally to the upper side of the slab forming part 100 at a predetermined interval, and a form 44 for forming a transverse girder is installed. By forming the transverse girder forming part 170,

추후 철근배근하고 콘크리트를 양생시키면 슬라브(1000) 상측으로 강관 내부의 콘크리트가 이루는 종방향 거더(1500)와 횡방향 거더형성부(170)내의 콘크리트에 의해 형성되는 횡방향 거더(1700)에 의해 2방향 거더가 일체로 형성된 지하구조물을 얻는 것이다.After reinforcing reinforcement and curing the concrete, the longitudinal girder 1500 formed by the concrete inside the steel pipe to the upper side of the slab 1000 and the transverse girder 1700 formed by the concrete in the transverse girder forming part 170 2 by To obtain an underground structure in which the directional girder is integrally formed.

따라서, 거더 형성작업이 매우 용이하며, 슬라브(1000) 상측 강관(10) 내부에 양생되는 콘크리트에 의해 형성되는 종방향거더(1500)와 횡방향 거더형성부(170)내의 콘크리트에 의해 형성되는 횡방향 거더(1700)가 일체화되도록 형성된 2방향 형태의 거더에 의해 지장물 또는 상재토압의 압력을 견디는 역활을 완벽하게 수행할 수 있으므로 구조적으로 안정적인 견실한 구조의 터널이나 지하차로와 같은 지하구조물을 축조할 수 있다.Therefore, the girder forming operation is very easy, and the longitudinal girder 1500 formed by the concrete cured inside the steel pipe 10 on the upper side of the slab 1000 and the transverse girder formed by the concrete in the transverse girder forming part 170 . Since the directional girder 1700 can perfectly perform the role of withstanding the pressure of obstacles or surviving earth pressure by the two-way type girder formed so that the directional girder 1700 is integrated, construct an underground structure such as a tunnel or an underground lane with a structurally stable and robust structure. can do.

또한, 슬라브(1000) 상측으로 일체화되도록 형성된 2방향 형태의 거더의 존재로 인해 슬라브(1000) 형성 두께를 줄여 주어도 구조적으로 전혀 이상이 없으므로 철근이나 시멘트 등의 재료의 낭비를 줄여 줄 수 있다.In addition, even if the thickness of the slab 1000 is reduced due to the presence of a two-way girder formed to be integrated with the upper side of the slab 1000, there is no structural problem at all, so the waste of materials such as reinforcing bars or cement can be reduced.

그리고, 거더가 슬라브(1000) 상측으로 위치되는 것이어서 터널이나 지하차로의 상측 내부면이 자연스럽게 매끄럽게 형성되어지는 이점도 있다.And, since the girder is positioned above the slab 1000, there is also an advantage that the upper inner surface of the tunnel or underground road is naturally smooth.

그러는 한편 본 발명은 상기 일 실시예에 따라 거더 형성시 슬라브형성용 거푸집(40) 상측에 해당되는 압입강관(10) 내측으로 다양한 형태의 전단연결재(4000)를 용접설치하여 콘크리트 양생시 단순 가시설재인 강관(10)을 메인 구조인 콘크리트와 일체화시켜 줌으로써 구조적으로 더욱 견실한 영구적 합성콘크리트구조물을 얻을 수 있다.On the other hand, in the present invention, various types of shear connectors 4000 are welded to the inside of the press-fitted steel pipe 10 corresponding to the upper side of the slab forming form 40 when the girder is formed according to the above embodiment, so that when concrete is cured, a simple temporary installation material is installed. By integrating the phosphorus steel pipe 10 with the concrete, which is the main structure, it is possible to obtain a structurally more robust permanent composite concrete structure.

또한, 본 발명은 일 실시시예의 수행시 첨부도면 도 7에 일예로 도시한 바와 같이 지중에 압입되는 강관(10)들을 한칸씩 띄엄띄엄 비워가며 압입추진하고 내부 토사를 굴착하여 제거하고,In addition, the present invention, when carrying out an embodiment, as shown as an example in the accompanying drawings Fig. 7, the steel pipe 10 press-fitted into the ground is emptied one by one spacedly and press-fitted, and the internal soil is excavated and removed,

상기 내력재(20)에 의해 내력이 보강된 선추진 강관(10)의 상,하부 양측내면을 내부에서 절개하여 상부절개홈(11)을 형성한 다음,The upper and lower both inner surfaces of the pre-propelled steel pipe 10, whose bearing strength is reinforced by the bearing material 20, are cut from the inside to form an upper incision groove 11,

후추진 강관(10)의 상,하부 양측외면에 선추진강관(10)의 상부절개홈(11)에 각각 삽입되어지는 방수철판(30)을 용접설치한 후추진강관(10)을 선추진 강관(10) 사이에 압입추진하되,A pre-propulsion steel pipe in which waterproof iron plates 30 that are respectively inserted into the upper cut-out grooves 11 of the pre-propulsion steel pipe 10 are welded to the upper and lower both outer surfaces of the Fuchu-jin steel pipe 10. (10) push-in between, but

후추진 강관(10)의 방수철판(30)의 양단을 각각 선추진 강관(10)의 상부절개홈(11)에 삽입시켜 주는 작업을 수행하여 추후 슬라브 및 거더의 형성이 용이하도록 할 수도 있는 것은 물론,It is also possible to facilitate the formation of slabs and girders in the future by inserting both ends of the waterproof iron plate 30 of the fuchu driven steel pipe 10 into the upper cut-out grooves 11 of the pre-propulsion steel pipe 10, respectively. sure,

첨부도면 도 8에 일예로 도시한 바와 같이 상기 지중에 압입되는 강관(10)들을 한칸씩 띄엄띄엄 비워가며 압입추진하고 내부 토사를 굴착하여 제거한 다음,As shown in the accompanying drawings as an example in FIG. 8 , the steel pipes 10 press-fitted into the ground are emptied one by one at intervals to push-in, and then excavate and remove the internal soil,

상기 내력재(20)에 의해 내력이 보강된 선추진 강관(10)의 상,하부 양측내면을 내부에서 절개하여 상부절개홈(11) 및 하부절개홈(12)을 형성한 다음,The upper and lower both inner surfaces of the pre-propulsion steel pipe 10, whose bearing strength is reinforced by the load-bearing material 20, are cut from the inside to form an upper incision groove 11 and a lower incision groove 12,

후추진 강관(10)의 상,하부 양측외면에 선추진 강관(10)의 상부절개홈(11) 및 하부절개홈(12)에 각각 삽입되어지는 방수철판(30) 및 거푸집(40)을 용접설치한 후추진강관(10)을 선추진강관(10) 사이에 압입추진하되,Welding the waterproof iron plate 30 and the formwork 40 respectively inserted into the upper cut-out groove 11 and the lower cut-out groove 12 of the pre-propelled steel pipe 10 on the upper and lower both outer surfaces of the steel pipe 10. Push-in between the pre-propulsion steel pipe (10),

후추진 강관(10)의 방수철판(30) 및 거푸집(40)의 양단을 각각 선추진 강관(10)의 상부절개홈(11) 및 하부절개홈(12)에 삽입시켜 주는 작업을 수행하여 추후 슬라브 및 거더의 형성이 매우 신속하게 이루어지도록 할 수도 있다.The work of inserting both ends of the waterproof iron plate 30 and the formwork 40 of the fuchu-driven steel pipe 10 into the upper cut-out groove 11 and the lower cut-out groove 12 of the pre-propelled steel pipe 10, respectively, is performed later. It can also allow for very rapid formation of slabs and girders.

10:강관 11:상부절개홈
12:하부절개홈 13:측벽형성용 절개홈
20:내력재 30:방수철판
40:거푸집 44:횡방향 거더형성용 거푸집
50:토압지지대 100:슬라브형성부
170:횡방향 거더형성부 200:측벽형성부
1000:슬라브 1500:종방향 거더
1700:횡방향 거더 2000:측벽
바닥면:3000 4000:전단연결재
10: Steel pipe 11: Upper incision groove
12: lower incision groove 13: incision groove for side wall formation
20: load-bearing material 30: waterproof plate
40: Formwork 44: Formwork for forming lateral girder
50: earth pressure support 100: slab forming part
170: transverse girder forming part 200: side wall forming part
1000: slab 1500: longitudinal girder
1700: transverse girder 2000: sidewall
Bottom: 3000 4000: shear connector

Claims (4)

소정길이를 가지며 직경이 큰 다수의 대구경 강관(10)을 유압잭 및 추진보조관을 이용하여 지하터널 시공면의 형태에 따라 아치형 또는 사각형을 이루도록 길게 이여붙여 가면서 직선 또는 곡선으로 압입시키면서 내부 토사를 굴착하여 제거하는 공정과,
상기 압입된 강관(10) 내부에 내력재(20)를 다양한 형태로 용접하여 고정설치함으로써 미리 내력을 보강하는 공정과;
상기 내력재(20)에 의해 내력이 보강된 강관(10)들의 상부 양측내면을 내부에서 절개하고 방수철판(30)으로 연결하고,
강관(10)들의 하부 양측내면을 내부에서 절개하여 철판으로 슬라브형성용 거푸집(40)을 설치하여 슬라브형성부(100)를 형성하고,
측벽(2000)의 경우에는 방수철판(30)과 측벽형성용 거푸집(40) 설치하고 내부를 단계적으로 굴착하면서 토압지지대(50)를 설치한 다음 측벽형성부(200)를 형성한 후 철근배근(미도시)하고 강관(10)내에 콘크리트를 타설하고 양생시키는 공정과;
상기 강관(10) 내부에 주입된 콘크리트 양생 후 지하공간부(1)를 굴착하면서 강관(10) 하측이나 슬라브형성용 거푸집(40)이나 측벽형성용 거푸집(40)을 제거하는 공정과;
상기 굴착된 지하공간부(1) 하측에 바닥면(3000)을 형성하는 공정을 수행하여 지하구조물을 형성하는 지하구조물 설치공법을 수행하되,
상기 압입된 강관(10) 내부에서 슬라브형성부(100) 상측으로 강관(10)끼리 소정간격으로 띄엄띄엄 횡으로 연결되도록 강관(10) 측면을 절개하고 횡방향 거더형성용 거푸집(44)을 설치하여 횡방향 거더형성부(170)를 형성하여서,
추후 철근배근하고 콘크리트를 양생시키면 슬라브(1000) 상측 강관(10) 내부의 콘크리트가 종방향거더(1500)가 되고 횡방향 거더형성부(170)내의 콘크리트가 횡방향거더(1700)가 되어 2방향 형태의 거더가 일체로 형성된 구조물이 축조되도록 이루어짐을 특징으로 하는 지하구조물 축조에 있어서의 압입강관을 이용한 2방향 거더 형성방법.
Excavating internal soil while pressing a number of large-diameter steel pipes 10 having a predetermined length and a large diameter in a straight or curved shape using a hydraulic jack and a propulsion auxiliary pipe to form an arcuate or square depending on the shape of the underground tunnel construction surface and the process of removing
a step of reinforcing the load-bearing force in advance by welding and fixing the load-bearing material 20 in various shapes to the inside of the press-fitted steel pipe 10;
The inner surfaces of both upper sides of the steel pipes 10 whose bearing strength is reinforced by the bearing material 20 are cut from the inside and connected with a waterproof iron plate 30,
The slab forming part 100 is formed by cutting the inner surfaces of both lower sides of the steel pipes 10 from the inside and installing the slab forming form 40 with an iron plate,
In the case of the side wall 2000, the waterproof iron plate 30 and the side wall forming form 40 are installed, the earth pressure support 50 is installed while excavating the inside step by step, and then the side wall forming part 200 is formed, and then reinforcement reinforcement ( (not shown) and pouring and curing concrete in the steel pipe 10;
After curing the concrete injected into the steel pipe 10, excavating the underground space portion 1, removing the steel pipe 10, the lower side of the slab 40, or the form 40 for forming the side wall;
An underground structure installation method of forming an underground structure by performing a process of forming the floor surface 3000 on the lower side of the excavated underground space part 1 is performed,
In the press-fitted steel pipe 10, the side of the steel pipe 10 is cut so that the steel pipes 10 are sparsely connected horizontally to the upper side of the slab forming part 100 at a predetermined interval, and a formwork 44 for forming a transverse girder is installed. to form a transverse girder forming part 170,
After reinforcing reinforcement and curing the concrete, the concrete inside the steel pipe 10 on the upper side of the slab 1000 becomes the longitudinal girder 1500, and the concrete in the transverse girder forming part 170 becomes the transverse girder 1700. A method of forming a two-way girder using a press-fitted steel pipe in the construction of an underground structure, characterized in that the structure in which the girder is integrally formed is constructed.
제 1항 있어서,
상기 2방향 거더 형성시, 슬라브형성용 거푸집(40) 상측에 해당되는 압입 강관(10) 내측으로 전단연결재(4000)를 용접설치하여 콘크리트 양생시 단순 가시설재인 강관(10)을 메인 구조인 콘크리트와 일체화되어 구조적으로 더욱 견실한 영구적 합성 콘크리트구조물을 얻을 수 있도록 이루어짐을 특징으로 하는 지하구조물 축조에 있어서의 압입강관을 이용한 우물정자 거더 형성방법.
The method of claim 1,
When the two-way girder is formed, the shear connector 4000 is welded to the inside of the press-fitted steel pipe 10 corresponding to the upper side of the slab forming form 40, and the steel pipe 10, which is a simple temporary facility, is used as the main structure during concrete curing. A method of forming a well girder using a press-fitted steel pipe in the construction of an underground structure, characterized in that it is integrated with and can obtain a structurally more robust permanent synthetic concrete structure.
제 1항 있어서,
상기 지중에 압입되는 강관(10)들을 한칸씩 띄엄띄엄 비워가며 압입추진하고 내부 토사를 굴착하여 제거하고,
상기 내력재(20)에 의해 내력이 보강된 선추진 강관(10)의 상,하부 양측내면을 내부에서 절개하여 상부절개홈(11)을 형성한 다음,
후추진 강관(10)의 상,하부 양측외면에 선추진강관(10)의 상부절개홈(11)에 각각 삽입되어지는 방수철판(30)을 용접설치한 후추진강관(10)을 선추진 강관(10) 사이에 압입추진하되,
후추진 강관(10)의 방수철판(30)의 양단을 각각 선추진 강관(10)의 상부절개홈(11)에 삽입시켜 주는 작업을 수행하여 추후 슬라브 및 거더의 형성이 용이하도록 이루어짐을 특징으로 하는 지하구조물 축조에 있어서의 압입강관을 이용한 우물정자 거더 형성방법.
The method of claim 1,
The steel pipes 10 press-fitted into the ground are press-fitted while emptying one by one, and the internal soil is excavated and removed,
The upper and lower both inner surfaces of the pre-propulsion steel pipe 10, whose bearing strength is reinforced by the bearing material 20, are cut from the inside to form an upper incision groove 11,
A pre-propulsion steel pipe in which waterproof iron plates 30 that are respectively inserted into the upper cut-out grooves 11 of the pre-propulsion steel pipe 10 are welded to the upper and lower both outer surfaces of the Fuchu-jin steel pipe 10. (10) push-in between, but
It is characterized in that the both ends of the waterproof iron plate 30 of the fuchu driven steel pipe 10 are inserted into the upper cut-out grooves 11 of the pre-propulsion steel pipe 10, respectively, to facilitate the formation of slabs and girders in the future. A method of forming a well girder using a press-fitted steel pipe in the construction of an underground structure.
제 1항에 있어서,
상기 지중에 압입되는 강관(10)들을 한칸씩 띄엄띄엄 비워가며 압입추진하고 내부 토사를 굴착하여 제거하고,
상기 내력재(20)에 의해 내력이 보강된 선추진 강관(10)의 상,하부 양측내면을 내부에서 절개하여 상부절개홈(11) 및 하부절개홈(12)을 형성한 다음,
후추진 강관(10)의 상,하부 양측외면에 선추진 강관(10)의 상부절개홈(11) 및 하부절개홈(12)에 각각 삽입되어지는 방수철판(30) 및 거푸집(40)을 용접설치한 후추진강관(10)을 선추진강관(10) 사이에 압입추진하되,
후추진강관(10)의 방수철판(30) 및 거푸집(40)의 양단을 각각 선추진강관(10)의 상부절개홈(11) 및 하부절개홈(12)에 삽입시켜 주는 작업을 수행하여 추후 슬라브 및 거더의 형성이 용이하도록 이루어짐을 특징으로 하는 지하구조물 축조에 있어서의 압입강관을 이용한 우물정자 거더 형성방법.
The method of claim 1,
The steel pipes 10 press-fitted into the ground are press-fitted while emptying one by one, and the internal soil is excavated and removed,
The upper and lower both inner surfaces of the pre-propulsion steel pipe 10, whose bearing strength is reinforced by the load-bearing material 20, are cut from the inside to form an upper incision groove 11 and a lower incision groove 12,
Welding the waterproof iron plate 30 and the formwork 40 respectively inserted into the upper cut-out groove 11 and the lower cut-out groove 12 of the pre-propelled steel pipe 10 on the upper and lower both outer surfaces of the steel pipe 10. Push-in between the pre-propulsion steel pipe (10),
The work of inserting both ends of the waterproofing iron plate 30 and the mold 40 of the Fuchu-jin steel pipe 10 into the upper cut-out groove 11 and the lower cut-out groove 12 of the pre-propulsion steel pipe 10, respectively. A method of forming a well-defined girder using a press-fitted steel pipe in the construction of an underground structure, characterized in that it is made to facilitate the formation of slabs and girders.
KR1020200109717A 2020-08-28 2020-08-28 Method for forming a two-way girder using press-fit steel pipes in underground structure construction KR20220028563A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102606067B1 (en) * 2022-10-26 2023-11-23 김경혜 Underground structure construction method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102606067B1 (en) * 2022-10-26 2023-11-23 김경혜 Underground structure construction method

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