KR20220030686A - Construction method and construction structure of water expansion index to prevent leakage of underground continuous wall - Google Patents

Construction method and construction structure of water expansion index to prevent leakage of underground continuous wall Download PDF

Info

Publication number
KR20220030686A
KR20220030686A KR1020200112312A KR20200112312A KR20220030686A KR 20220030686 A KR20220030686 A KR 20220030686A KR 1020200112312 A KR1020200112312 A KR 1020200112312A KR 20200112312 A KR20200112312 A KR 20200112312A KR 20220030686 A KR20220030686 A KR 20220030686A
Authority
KR
South Korea
Prior art keywords
panel
water
construction
water expansion
expansion index
Prior art date
Application number
KR1020200112312A
Other languages
Korean (ko)
Inventor
오창균
윤현식
Original Assignee
오창균
윤현식
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 오창균, 윤현식 filed Critical 오창균
Priority to KR1020200112312A priority Critical patent/KR20220030686A/en
Publication of KR20220030686A publication Critical patent/KR20220030686A/en

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/18—Bulkheads or similar walls made solely of concrete in situ
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/02—Foundation pits
    • E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/06—Foundation trenches ditches or narrow shafts
    • E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00—Keeping dry foundation sites or other areas in the ground
    • E02D19/06—Restraining of underground water
    • E02D19/12—Restraining of underground water by damming or interrupting the passage of underground water
    • E02D19/16—Restraining of underground water by damming or interrupting the passage of underground water by placing or applying sealing substances
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2220/00—Temporary installations or constructions
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0004—Synthetics
    • E02D2300/0018—Cement used as binder
    • E02D2300/002—Concrete
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0026—Metals
    • E02D2300/0029—Steel; Iron

Abstract

The present invention provides a construction method of a waterstop for preventing leakage of an underground continuous wall, which allows a waterstop to be conveniently and accurately installed on a construction joint or a connected portion between a preceding panel and a following panel when an underground continuous wall is constructed. The construction method of the present invention comprises: a first step of forming preceding panels at given intervals in order to form an underground continuous wall; a second step of using excavation equipment at the construction joint to process a concrete placement surface of the preceding panel in order to perform overcutting of 100 mm at both sides of a following panel in constructing a following panel after construction of the preceding panels is completed; and a third step of forming the following panel between the preceding panels such that joint processing can be performed on the construction joint between the preceding panel and the following panel, wherein the third step includes: a waterstop attachment step of attaching waterstops to both sides of a reinforced steel cage of the following panel for forming the following panel such that the waterstops come in close contact therewith; following a panel reinforced steel cage penetration step of enabling the following panel reinforced steel cage where the waterstop is attached to penetrate a gap between the preceding panels such that the waterstop is located at a section subjected to overcutting; and a concrete placement step of placing concrete to form the following panel after the following panel reinforced steel cage penetration step.

Description

지하연속벽 누수방지를 위한 수팽창지수재 시공방법 및 시공구조{Construction method and construction structure of water expansion index to prevent leakage of underground continuous wall} Construction method and construction structure of water expansion index to prevent leakage of underground continuous wall

본 발명은 지하연속벽 누수방지를 위한 수팽창지수재 시공방법 및 시공구조에 관한 것으로, 더욱 상세하게는 지하연속벽의 시공시 선행판넬과 후행판넬의 연결부위인 시공이음부(Construction joint)에 수팽창지수재를 간편하면서도 정확하게 설치할 수 있도록 하여 시공 후 누수문제 및 그로 인한 심한 결로 문제의 발생을 없게 함에 의해 추가로 벽체 내벽 방수시공은 물론 내부 조적 벽돌쌓기 등을 하지 않아도 되므로 경제적인 측면이나 공간적인 측면에서 유리한 지하연속벽 누수방지를 위한 수팽창지수재 시공방법 및 시공구조에 관한 것이다. The present invention relates to a construction method and a construction structure of a water-expandable water-expandable material for preventing leakage of a continuous underground wall, and more particularly, to a construction joint that is a connection part between a preceding panel and a succeeding panel when constructing an underground continuous wall. By making it possible to install the water expansion index material simply and accurately, there is no need for water leakage and severe condensation problems after construction. It relates to a construction method and construction structure of a water-expandable water-expandable material for preventing leakage of continuous underground walls, which is advantageous from a practical point of view.

건축물이 대형화 되고 지하공간의 중요성이 증가되면서 구조물 시공 시 지반 굴착에 대한 중요도가 날로 높아지고 있다. 건축물이 대형화 됨에 따라 굴착 심도가 깊어지고 면적도 넓어져 굴착에 따른 문제점들이 많이 발생되고 있다. 지반 굴착에 대한 연구개발이 10여년 전까지는 흙막이 벽체의 안전성에 국한 되었으나, 점차 구조물 및 주변지반에 미치는 직,간접적 영향을 다방면으로 고려하고 있는 경향이 있고, 특히 지하 누수 현상은 건축물 기초부분에서 발생되는 문제이므로 건축물 안전에 심각한 영향을 미친다.As buildings become larger and the importance of underground space increases, the importance of excavating the ground during construction of structures is increasing day by day. As buildings become larger, the depth of excavation becomes deeper and the area becomes wider, which causes many problems with excavation. R&D on excavation of the ground was limited to the safety of retaining walls until about 10 years ago, but there is a tendency to consider direct and indirect effects on structures and surrounding ground in various ways. It is a problem that has a serious impact on the safety of the building.

지하연속벽은 건축물 지하 최외측 수직벽을 연속 연결하는 방식으로 시공되어 그 내부에 지하 공간을 확보할 수 있도록 한다. 이 지하연속벽은 일거에 시공이 불가능하므로 어쩔 수 없이 단위 콘크리트 판넬을 순차적으로 연속 타설 양생하여 그들의 경계부가 일체로 연결되게 하는 방식으로 시공된다. The underground continuous wall is constructed in such a way that the outermost vertical wall of the basement of the building is continuously connected, so that the underground space can be secured inside. Since it is impossible to construct this continuous underground wall at once, it is inevitable that the unit concrete panels will be continuously poured and cured in such a way that their boundaries are connected together.

구체적으로 지하연속벽을 시공하는 방법은 굴착된 지중 공간에 철근망을 삽입한 후, 그 곳에 콘크리트를 타설하여 다수의 선행판넬을 지중에 형성하고, 이후에 선행판넬의 사이에 후행판넬을 형성하여 연속적인 벽체가 형성되도록 시공하여 구축된다. 즉, 콘크리트로 구성된 선행판넬과 후행판넬의 연결부는 양측 판넬이 시차를 두고 양생됨에 따라 그 연결부는 밀접하게 연결되지 않은 경우가 발생한다.Specifically, the method of constructing an underground continuous wall is to insert a rebar mesh into the excavated underground space, pour concrete there, form a number of preceding panels underground, and then form a trailing panel between the preceding panels. It is constructed and constructed so that a continuous wall is formed. That is, the connection part between the preceding panel and the trailing panel made of concrete is not closely connected as both panels are cured with a time difference.

따라서 지하연속벽의 경우, 선행판넬과 후행판넬의 연결부가 콘트리트 타설을 통해 연속으로 붙어있는 구조를 보이고 있으나, 선행판넬과 후행판넬이 분리 시공되기 때문에 선행판넬과 후행판넬의 연결부가 무근 콘크리트 타설 형태로 시공되고, 이로 인하여 토압이 작용하게 되면 각 메인 판넬이 서로 다르게 거동할 수 있는 구조적인 문제점을 갖고 있고, 선행판넬과 후행판넬의 연결부에서 누수가 발생되는 문제점이 있다.Therefore, in the case of a continuous underground wall, the connection part of the preceding panel and the succeeding panel is continuously attached through concrete pouring. It has a structural problem in that each main panel can behave differently when earth pressure is applied to it, and there is a problem in that water leakage occurs in the connection part of the preceding panel and the following panel.

이러한 문제점을 해결하기 위해 지하연속벽을 시공한 다음 선행판넬과 후행판넬의 연결부에 대응하는 후방에 위치하도록 별도로 그라우팅관을 지하연속벽의 바닥까지 삽입한 후 그 내부로 그라우트를 공급하면서 이 그라우팅관을 서서히 들어올리면 토출된 그라우트가 선행판넬과 후행판넬의 연결부의 후방 토사 내부로 침투하여 토사의 공극을 긴밀하게 메꾸면서 경화된 상태로 연결부 후방을 차단하므로, 연결부는 후방 토사에 의해 수밀성이 확보되어 누수가 차단된다.To solve this problem, after constructing a continuous underground wall, a grouting pipe is separately inserted to the bottom of the continuous underground wall to be located at the rear corresponding to the connection part of the preceding panel and the following panel, and then the grout is supplied inside the grouting pipe. As the grout is gradually lifted up, the discharged grout penetrates into the interior of the soil at the rear of the connection between the preceding panel and the following panel and closes the back of the connection in a hardened state while filling the void in the soil. The leak is blocked.

그러나, 이러한 종래의 지하연속벽 그라우팅 차수공법은 지하연속벽 시공 후에 차수를 위해 선행판넬과 후행판넬의 연결부에 대응하는 후방에 중장비인 오거를 이용하여 그라우팅관이 삽입되는 구멍을 먼저 굴착한 다음 이 구멍에 그라우팅관을 삽입해야 하므로 이의 공정이 대단히 번거롭고 시간이 많이 소요되어 공기가 길어지는 문제가 있다.However, in this conventional underground continuous wall grouting shutoff method, the hole into which the grouting pipe is inserted is first excavated using an auger, which is a heavy equipment, at the rear corresponding to the connection part of the preceding panel and the following panel for water blocking after the underground continuous wall construction is completed. Since the grouting pipe must be inserted into the hole, the process thereof is very cumbersome and takes a lot of time, so there is a problem that the air is long.

또한, 연결부의 후방에 다량의 그라우트가 투입되므로 이로 인하여 지하수가 오염되는 문제를 피할 수 없었다. 또한 상기 그라우팅 작업을 지하연속벽 후방 지상에서 시공하기 때문에 이에 따른 작업공간이 확보되어야 하므로 그 만큼 건축물의 지하 공간면적이 감소되는 문제도 있다.In addition, since a large amount of grout is put in the rear of the connection part, the problem of contamination of the groundwater could not be avoided. In addition, since the grouting operation is performed on the ground behind the continuous underground wall, a corresponding working space must be secured, so there is a problem in that the underground space area of the building is reduced by that much.

특히, 해수지역이나 유난히 지하수위가 높은 경우에는 지하연속벽의 수많은 시공이음부(C/J)에 대한 완벽한 방수대책이 반드시 요구되고 있다.In particular, perfect waterproofing measures for numerous construction joints (C/J) of continuous underground walls are required in seawater areas or when the groundwater level is exceptionally high.

한편, 지하연속벽 시공에 관한 문헌상의 종래 기술은 대한민국 공개특허 제10-2002-0046904호의 차수벽 흙막이 공법이 제시되어 있다. 이 시공법은 주열식 지하연속벽 시공법으로 본 발명과 전혀 다른 시공법으로 관련성이 없다.On the other hand, as for the prior art on the construction of an underground continuous wall, the order wall retaining method of Korean Patent Laid-Open No. 10-2002-0046904 is presented. This construction method is a column-type underground continuous wall construction method, and is completely different from the present invention and has no relevance.

또한, 종래 다른 문헌은 대한민국 공개특허 제10-2009-0007826호의 무지보형의 차수벽 흙막이공법이 있다. 이 공법의 경우도 넓은 의미의 주열식 지하연속벽 시공법으로 본 발명과 관련성이 없는 기술이다.In addition, in another document in the prior art, there is a method for retaining a retaining wall of a non-reinforcing type of Korean Patent Laid-Open No. 10-2009-0007826. In the case of this construction method, it is a column-type continuous underground wall construction method in a broad sense, and it is a technology not related to the present invention.

대한민국 공개특허 제10-2002-0046904호의 차수벽 흙막이 공법Korean Patent Laid-Open Publication No. 10-2002-0046904 method for retaining water barrier 대한민국 공개특허 제10-2009-0007826호의 무지보형의 차수벽 흙막이공법Korean Patent Application Laid-Open No. 10-2009-0007826 Method of retaining wall retaining method of non-woven shape prosthesis

본 발명은 상기한 종래 기술의 문제점을 해결하기 위하여 안출된 것으로서, 본 발명의 시공 후 누수문제 및 그로 인한 심한 결로 문제의 발생을 없게 함에 의해 추가로 벽체 내벽 방수시공은 물론 내부 조적 벽돌쌓기 등을 하지 않아도 되므로 경제적인 측면이나 공간적인 측면에서 유리한 지하연속벽 누수방지를 위한 수팽창지수재 시공방법 및 시공구조를 제공하는데 있다. The present invention has been devised to solve the problems of the prior art, and in addition to waterproofing the inner wall of the wall, as well as the internal masonry brickwork, etc. It is to provide a construction method and construction structure of a water-expandable water expansion material for preventing leakage of underground continuous walls, which is advantageous in terms of economical and spatial aspects because there is no need to do so.

이를 위한 본 발명은 후행판넬 철근망의 좌우 양측면에 철판과 'ㄱ'형강을 용접한 후, 'ㄱ'형강에 수팽창지수재를 밀착되도록 접착제를 이용하여 부착 고정한 상태로 후행판넬 철근망을 근입시키고 콘크리트를 타설하여 후행판넬을 형성하는 것을 특징으로 한다. The present invention for this purpose is to weld the steel plate and 'a'-beam to the left and right sides of the trailing panel reinforcing bar network, and then insert the trailing panel reinforcing bar network in a state where the water expansion index material is attached and fixed to the 'a'-beam steel by using an adhesive. and pouring concrete to form a trailing panel.

상기 목적을 달성하기 위한 본 발명은 지하연속벽 누수방지를 위한 수팽창지수재 시공방법으로, 지하연속벽을 형성하도록 선행판넬들을 소정 간격으로 형성하는 제1단계; 상기 선행판넬 완료 후, 후행판넬 시공 시 시공이음부 위치에 굴착장비를 이용하여 후행판넬 양쪽으로 100mm의 오버(Over) 컷팅하도록 선행판넬 콘크리트 타설면을 처리하는 제2단계; 및 상기 선행판넬들의 사이에 후행판넬을 형성하되, 상기 선행판넬과 후행판넬의 시공이음부에 죠인트 처리되도록 후행판넬을 형성하는 제3단계;를 포함하고, 상기 제3단계는: 상기 후행판넬을 형성하기 위한 후행판넬 철근망의 양측에 수팽창지수재가 밀착되도록 부착하는 수팽창지수재 부착단계; 상기 수팽창지수재가 부착된 후행판넬 철근망을 선행판넬의 사이에 근입하되, 상기 수팽창지수재가 오버컷팅 형성된 구간에 위치되도록 상기 후행판넬 철근망을 근입하는 후행판넬 철근망 근입단계; 및 상기 후행판넬 철근망을 근입 후 콘크리트를 타설하여 후행판넬을 형성하는 콘크리트 타설단계;를 포함하는 것이 바람직하다. The present invention for achieving the above object is a water-expandable water expansion material construction method for preventing leakage of continuous underground walls, comprising: a first step of forming preceding panels at predetermined intervals to form an underground continuous wall; After completion of the preceding panel, a second step of processing the concrete pouring surface of the preceding panel to over-cut the following panel by 100 mm on both sides of the succeeding panel using an excavation equipment at the construction joint position during the construction of the succeeding panel; and a third step of forming a trailing panel between the preceding panels, but forming a trailing panel so as to be jointly processed at a construction joint of the preceding panel and the succeeding panel, wherein the third step includes: A water expansion index material attachment step of attaching the water expansion index material to both sides of the reinforcing bar network of the trailing panel to form; A trailing panel reinforcing bar network reinforcing step of reinforcing the trailing panel reinforcing bar network to which the water expansion index material is attached between the preceding panels, but inserting the reinforcing bar network of the trailing panel so that the water expansion index material is located in an overcutting section; and a concrete pouring step of forming a trailing panel by pouring concrete after reinforcing the trailing panel reinforcing bar network.

상기 수팽창지수재 부착단계는: 상기 수팽창지수재를 후행판넬 철근망의 좌우측면에 밀착시켜 부착 고정할 수 있도록 상기 후행판넬 철근망의 좌우 양측면에 수직 방향으로 철판을 용접하고, 상기 철판에 'ㄱ'형강을 수직 방향으로 용접한 후 상기 'ㄱ'형강에 수팽창지수재를 접착제를 이용하여 부착 고정하는 것이 바람직하다. In the step of attaching the water expansion index material, the steel plate is welded to the left and right side surfaces of the trailing panel reinforcing bar network in a vertical direction so that the water expansion index material can be attached and fixed to the left and right sides of the trailing panel reinforcing bar network, and to the steel plate It is preferable to attach and fix the water expansion index material to the 'a'-beam by using an adhesive after welding the 'a'-beam in the vertical direction.

상기 수팽창지수재 부착단계는: 상기 후행판넬 철근망의 좌우 양측면에 수팽창지수재가 1열 혹은 2열로 설치되는 것이 바람직하다. In the step of attaching the water expansion index material, it is preferable that the water expansion index material is installed in one or two rows on both left and right sides of the reinforcing bar network of the trailing panel.

또한, 상기 목적을 달성하기 위한 본 발명은 지하연속벽 누수방지를 위한 수팽창지수재 시공구조로서, 지하연속벽을 형성하는, 소정 간격으로 형성되는 선행판넬들; 및 상기 선행판넬들의 사이에 형성되며, 상기 선행판넬과 후행판넬의 시공이음부에 죠인트 처리되도록 형성되는 후행판넬;을 포함하고, 상기 후행판넬은: 후행판넬 철근망; 상기 후행판넬 철근망의 좌우 양측에 수직 방향으로 각각 용접된 좌우측 철판; 상기 좌우측 철판에 수직 방향으로 각각 용접된 좌우측 'ㄱ'형강; 및 상기 좌우측 'ㄱ'형강에 수직 방향으로 접착제에 의해 각각 밀착되도록 부착 고정되어 선행판넬과 후행판넬의 시공이음부에 죠인트 처리되도록 설치되는 수팽창지수재;를 포함하는 것이 바람직하다. In addition, the present invention for achieving the above object is a water-expandable water-expandable material construction structure for preventing leakage of underground continuous walls, comprising: preceding panels formed at predetermined intervals to form an underground continuous wall; and a trailing panel formed between the preceding panels and formed to be jointly processed at a construction joint of the preceding panel and the succeeding panel, wherein the following panel includes: a trailing panel reinforcing bar network; left and right iron plates welded to the left and right sides of the rear panel reinforcing bar network in a vertical direction, respectively; left and right 'a' sections welded to the left and right iron plates in a vertical direction; and a water expansion index material which is attached and fixed to the left and right 'a'-beams in a vertical direction by an adhesive and is installed to be jointly treated at the construction joints of the preceding panel and the succeeding panel.

상기 수팽창지수재는 후행판넬 철근망의 좌우측면에 1열 혹은 2열로 설치되는 것이 바람직하다. The water expansion index material is preferably installed in one or two rows on the left and right sides of the reinforcing bar network of the trailing panel.

본 발명에 따른 지하연속벽 누수방지를 위한 수팽창지수재 시공방법 및 시공구조에 의하면, 지하연속벽 각각의 판넬 시공이음부에 선행판넬 시공 후, 후행판넬 철근망에 철판 및 'ㄱ'형강을 제작하여 수팽창 지수재의 부피 변화율에 맞추어 설치하고 콘크리트 타설함으로써 미세한 시공이음부의 누수방지를 효과적으로 방지할 수 있는 효과가 있다. According to the construction method and construction structure of the water expansion index material for preventing water leakage in the continuous underground wall according to the present invention, after the preceding panel construction at the panel construction joint of each underground continuous wall, the steel plate and the 'a' section are installed in the reinforcing bar network of the following panel. By manufacturing, installing according to the volume change rate of the water expansion index material, and pouring concrete, there is an effect that can effectively prevent leakage of fine construction joints.

또한, 본 발명은 품질관리가 용이하고 공정이 단순하여 공사비를 절감할 수 있는 효과가 있다.In addition, the present invention has the effect of reducing the construction cost because the quality control is easy and the process is simple.

또한, 본 발명은 지하 수중 콘크리트(con′c) 타설로 지수재 설치가 불가한 경우에도 설치 시공이 용이한 효과가 있다. In addition, the present invention has the effect of easy installation and construction even when it is impossible to install a water stop material by pouring underground underwater concrete (con'c).

또한, 본 발명은 지하연속벽 시공죠인트 누수에 대한 방수효과가 향상되고, 지하연속벽 시공죠인트 방수성능을 확보할 수 있어 별도의 유도배수가 불필요하므로, 경제적인 측면이나 공간적인 측면에서 유리한 효과가 있다. In addition, the present invention improves the waterproofing effect against leakage of the underground continuous wall construction joint, and secures the waterproofing performance of the underground continuous wall construction joint. there is.

특히, 본 발명은 지하연속벽 죠인트의 시공 중 수팽창지수재를 매입하여 콘크리트와 같이 양생되고 팽창되어 보다 향상된 방수 성능을 확보 할 수 있는 효과가 있다. In particular, the present invention has the effect of securing a more improved waterproofing performance by embedding a water expansion index material during the construction of the underground continuous wall joint, curing and expanding like concrete.

또한, 본 발명은 지하연속벽 죠인트 처리를 사전 철근망에 설치하여 콘크리트 시공과 병행 할 수 있어 각각의 죠인트 방수시공이 균등한 품질을 얻을 수 있는 효과가 있다.In addition, the present invention has the effect that the joint treatment of the underground continuous wall can be installed in advance in the reinforcing bar network and parallel to the concrete construction, so that the waterproof construction of each joint can obtain an equal quality.

또한, 본 발명은 지하연속벽의 죠인트 구간의 누수로 인한 콘크리트 내부 철근이 염분에 의해 산화되는 것을 방지하는 우수한 방청 성능을 기대할 수 있고, 이로 인한 콘크리트 내구성 증진 효과를 얻을 수 있다.In addition, according to the present invention, excellent anti-rust performance can be expected to prevent oxidation of reinforcing bars inside concrete due to water leakage in the joint section of the underground continuous wall, and thus, the effect of enhancing concrete durability can be obtained.

도 1은 본 발명에 따른 지하연속벽 누수방지를 위한 수팽창지수재 시공구조를 평면에서 개략적으로 보아 도시한 도면이고,
도 2는 도 1표시의 "A"부 확대도이고,
도 3 내지 도 4는 본 발명에 따른 지하연속벽 누수방지를 위한 수팽창지수재 시공방법을 설명하는 도면이고,
도 5는 본 발명의 요부 구성으로, 수팽창지수재가 1열로 설치되는 예를 나타낸 평단면도와 측단면도 및 확대도이고,
도 6은 본 발명의 요부 구성으로, 수팽창지수재가 2열로 설치되는 예를 나타낸 평단면도와 측단면도 및 확대도이고,
도 7a 내지 도 7l은 본 발명에 따른 지하연속벽 누수방지를 위한 수팽창지수재 시공방법을 순차적으로 나타낸 시공사진이다. 1 is a plan view schematically showing the construction structure of a water expansion water material for preventing leakage of underground continuous walls according to the present invention;
Figure 2 is an enlarged view of part "A" of the display in Figure 1,
3 to 4 are views for explaining the construction method of the water expansion water material for preventing leakage of underground continuous walls according to the present invention,
5 is a plan cross-sectional view, a side cross-sectional view, and an enlarged view showing an example in which the water expansion index material is installed in one row as the main part of the present invention;
6 is a plan cross-sectional view, a side cross-sectional view, and an enlarged view showing an example in which the water expansion index material is installed in two rows as the main part of the present invention;
7a to 7l are construction photos sequentially showing the construction method of the water expansion index material for preventing leakage of the underground continuous wall according to the present invention.

이하에서는, 첨부된 도면을 참고하여 본 발명에 따른 바람직한 실시예를 보다 상세하게 설명하기로 한다.Hereinafter, preferred embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

본 발명의 설명에 앞서, 이하의 특정한 구조 내지 기능적 설명들은 단지 본 발명의 개념에 따른 실시예를 설명하기 위한 목적으로 예시된 것으로, 본 발명의 개념에 따른 실시예들은 다양한 형태로 실시될 수 있으며, 본 명세서에 설명된 실시예들에 한정되는 것으로 해석되어서는 아니된다.Prior to the description of the present invention, the following specific structural or functional descriptions are only exemplified for the purpose of describing embodiments according to the concept of the present invention, and embodiments according to the concept of the present invention may be implemented in various forms and , should not be construed as being limited to the embodiments described herein.

또한, 본 발명의 개념에 따른 실시예는 다양한 변경을 가할 수 있고 여러 가지 형태를 가질 수 있으므로, 특정 실시예들을 도면에 예시하고 본 명세서에 상세하게 설명하고자 한다. 그러나, 이는 본 발명의 개념에 따른 실시예들을 특정한 개시 형태에 한정하려는 것이 아니며, 본 발명의 사상 및 기술 범위에 포함되는 모든 변경물, 균등물 내지 대체물을 포함하는 것으로 이해되어야 한다. In addition, since the embodiment according to the concept of the present invention may have various changes and may have various forms, specific embodiments will be illustrated in the drawings and described in detail herein. However, this is not intended to limit the embodiments according to the concept of the present invention to a specific disclosed form, and it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

또한, 발명의 구성들은 직접적인 접촉이나 연결뿐만 아니라 구성과 구성 사이에 다른 구성을 통해 접촉이나 연결된 것도 같은 범위로 해석하도록 한다. In addition, the components of the invention are to be interpreted in the same scope as the direct contact or connection, as well as the contact or connection through other components between the components.

첨부된 도 1은 본 발명에 따른 지하연속벽 누수방지를 위한 수팽창지수재 시공구조를 평면에서 개략적으로 보아 도시한 도면이고, 도 2는 도 1표시의 "A"부 확대도이고, 도 3 내지 도 4는 본 발명에 따른 지하연속벽 누수방지를 위한 수팽창지수재 시공방법을 설명하는 도면이고, 도 5는 본 발명의 요부 구성으로, 수팽창지수재가 1열로 설치되는 예를 나타낸 평단면도와 측단면도 및 확대도이고, 도 6은 본 발명의 요부 구성으로, 수팽창지수재가 2열로 설치되는 예를 나타낸 평단면도와 측단면도 및 확대도이고, 도 7a 내지 도 7l은 본 발명에 따른 지하연속벽 누수방지를 위한 수팽창지수재 시공방법을 순차적으로 나타낸 시공사진이다. 1 is a plan view schematically showing the construction structure of a water-expandable water-expandable material for preventing leakage of underground continuous walls according to the present invention, and FIG. 2 is an enlarged view of part "A" in FIG. 4 to 4 are views for explaining the construction method of the water-expandable water-expandable material for preventing leakage of the underground continuous wall according to the present invention, and FIG. and a side cross-sectional view and an enlarged view, and FIG. 6 is a plan cross-sectional view and a side cross-sectional view and an enlarged view showing an example in which the water expansion index material is installed in two rows as the main part of the present invention, and FIGS. 7A to 7L are the underground according to the present invention This is a construction photo sequentially showing the construction method of the water expansion index material for continuous wall leakage prevention.

이들 도면에 도시되어 있는 바와 같이, 본 발명에 따른 지하연속벽 누수방지를 위한 수팽창지수재 시공방법은, 지하연속벽을 형성하도록 선행판넬(110)들을 소정 간격으로 형성하는 제1단계와, 상기 선행판넬(110) 완료 후, 후행판넬(120) 시공 시 시공이음부 위치에 굴착장비를 이용하여 후행판넬 양쪽으로 100mm의 오버(Over) 컷팅하도록 선행판넬 콘크리트 타설면을 처리하는 제2단계 및 상기 선행판넬(110)들의 사이에 후행판넬(120)을 형성하되, 상기 선행판넬(110)과 후행판넬(120)의 시공이음부에 죠인트 처리되도록 후행판넬(120)을 형성하는 제3단계를 포함하는 것이 바람직하다. As shown in these drawings, the method for constructing a water expansion water material for preventing leakage of a continuous underground wall according to the present invention comprises a first step of forming the preceding panels 110 at predetermined intervals to form a continuous underground wall; After completion of the preceding panel 110, the second step of processing the concrete pouring surface of the preceding panel so as to overcut 100 mm on both sides of the following panel using excavation equipment at the construction joint position when constructing the succeeding panel 120; and A third step of forming the trailing panel 120 between the preceding panels 110, but forming the trailing panel 120 so as to be jointly processed at the construction joint of the preceding panel 110 and the trailing panel 120 It is preferable to include

이때, 상기 제3단계는 후행판넬(120)을 형성하기 위한 후행판넬 철근망(122)의 양측에 수팽창지수재(128)가 밀착되도록 부착하는 수팽창지수재 부착단계와, 상기 수팽창지수재(128)가 부착된 후행판넬 철근망(122)을 선행판넬의 사이에 근입하되, 상기 수팽창지수재(128)가 오버컷팅 형성된 구간에 위치되도록 상기 후행판넬 철근망(122)을 근입하는 후행판넬 철근망 근입단계 및 상기 후행판넬 철근망(122)을 근입 후 콘크리트를 타설하여 후행판넬(120)을 형성하는 콘크리트 타설단계를 포함하는 것이 바람직하다. At this time, the third step is a water expansion index material attachment step of attaching the water expansion index material 128 to both sides of the trailing panel reinforcing bar network 122 to form the trailing panel 120 so that the water expansion index material 128 is in close contact, and the water expansion index Reinforcing the rear panel reinforcing bar network 122 to which the ash 128 is attached is inserted between the preceding panels, but the reinforcing bar network 122 of the following panel is inserted so that the water expansion index material 128 is located in the overcutting section. It is preferable to include a step of reinforcing the trailing panel rebar network and a concrete pouring step of pouring concrete after reinforcing the trailing panel reinforcing bar network 122 to form the trailing panel 120 .

또한, 상기 수팽창지수재 부착단계는 상기 수팽창지수재(128)를 후행판넬 철근망(122)의 좌우측면에 밀착시켜 부착 고정할 수 있도록 구성하는 것이 특징이며, 이를 위해 상기 후행판넬 철근망(122)의 좌우 양측면에 수직 방향으로 철판(124)을 용접하고, 상기 철판(124)에 'ㄱ'형강(126)을 수직 방향으로 용접한 후 상기 'ㄱ'형강(126)에 수팽창지수재(128)를 접착제를 이용하여 부착 고정하는 것을 특징으로 한다. In addition, the water expansion index material attachment step is characterized in that the water expansion index material 128 is attached and fixed to the left and right sides of the trailing panel reinforcing bar network 122 to be attached and fixed. After welding the iron plate 124 in the vertical direction to the left and right side surfaces of 122, and welding the 'a'-shaped steel 126 to the iron plate 124 in the vertical direction, the water expansion index of the 'a'-shaped steel 126 is It is characterized in that the material 128 is attached and fixed using an adhesive.

한편, 상기 수팽창지수재 부착단계는 상기 후행판넬 철근망(122)의 좌우 양측면에 수팽창지수재(128)가 1열 혹은 2열로 설치되는 것이 바람직하다. On the other hand, in the step of attaching the water expansion index material, it is preferable that the water expansion index material 128 is installed in one or two rows on both left and right sides of the reinforcing bar network 122 of the trailing panel.

이와 같은 방법으로 시공되는 지하연속벽 누수방지를 위한 수팽창지수재 시공구조는, 지하연속벽을 형성하도록 소정 간격으로 형성되는 선행판넬(110)과 상기 선행판넬(110)들의 사이에 형성되며, 상기 선행판넬과 후행판넬의 시공이음부에 죠인트 처리되도록 형성되는 후행판넬(120)을 포함하는 것이 바람직하다. The water-expandable water expansion material construction structure for preventing water leakage of the continuous underground wall constructed in this way is formed between the preceding panel 110 and the preceding panel 110 formed at a predetermined interval to form the underground continuous wall, It is preferable to include a trailing panel 120 formed so as to be jointly processed at the construction joint of the preceding panel and the following panel.

이때, 상기 후행판넬(120)은 후행판넬 철근망(122)과 상기 후행판넬 철근망(122)의 좌우 양측에 수직 방향으로 각각 용접된 좌우측 철판(124)과, 상기 좌우측 철판(124)에 수직 방향으로 각각 용접된 좌우측 'ㄱ'형강(126)과, 상기 좌우측 'ㄱ'형강(126)에 수직 방향으로 접착제를 이용하여 각각 밀착되도록 부착 고정되어 선행판넬과 후행판넬의 시공이음부에 죠인트 처리되도록 설치되는 수팽창지수재(128)를 포함하여 구성되는 것이 바람직하다. At this time, the trailing panel 120 includes the left and right iron plates 124 welded to the left and right sides of the trailing panel reinforcing bar network 122 and the left and right sides of the trailing panel reinforcing bar network 122 in the vertical direction, respectively, and perpendicular to the left and right iron plates 124 . The left and right 'a'-beams 126 welded in each direction and the left and right 'a'-beams 126 are attached and fixed so as to be in close contact with each other using an adhesive in the vertical direction, and joint treatment at the construction joint of the preceding panel and the succeeding panel It is preferable to include a water expansion index material 128 that is installed so as to be possible.

또한, 상기 수팽창지수재(128)는 후행판넬 철근망(122)의 좌우측면에 1열 혹은 2열로 설치될 수 있다. In addition, the water expansion index member 128 may be installed in one or two rows on the left and right sides of the trailing panel reinforcing bar network 122 .

본 발명에서 사용하는 수팽창지수재는, 토목이나 건축구조물에 발생되는 침수 누수를 완벽히 방지하고 반영구적으로 지수성을 유지하기 위한 것으로, 이러한 수팽창지수재는 물, 습기와 접촉하면 체적이 팽창하여 내수압을 유지하며 빈 공간을 채워주어 구조물 접합부에 지수효과 발휘할 수 있는 재료를 사용한다.The water-expandable index material used in the present invention is to completely prevent immersion leakage occurring in civil engineering or building structures and to maintain water resistance semi-permanently. Use a material that can exhibit an exponential effect on the structure joint by filling in the empty space while maintaining it.

따라서, 본 발명의 수팽창지수재의 재료성질(자재의 선정)은 내구성과 내후성 및 내약품성이 우수한 재질로 이루어지는 것이 바람직하다. 즉, 특수 고무를 주재로 하여, 강도가 큰 특수친수성 고분자를 사용으로 내구성과 내후성 및 내약품성이 우수하고, 또 일반고무와 동일한 탄력성을 가지고 있어 압축변형 시켜도 복원이 잘 되는 재질로 이루어진다. Therefore, the material properties (selection of material) of the water expansion index material of the present invention is preferably made of a material excellent in durability, weather resistance and chemical resistance. In other words, it is made of a material that has excellent durability, weather resistance and chemical resistance by using special hydrophilic polymer with high strength, and has the same elasticity as general rubber, so that it can be restored easily even after compression deformation.

또한, 본 발명의 수팽창지수재는 수질과 수온의 영향을 받지 않아야 된다. 즉, 특수친수성 고분자를 사용하여 어떠한 수질, 수온에서도 2~5배 정도 팽창가능한 재질로 이루어진다. In addition, the water expansion index material of the present invention should not be affected by water quality and water temperature. That is, using a special hydrophilic polymer, it is made of a material that can expand 2 to 5 times at any water quality and temperature.

또한, 본 발명의 수팽창지수재는 완충기능이 뛰어나야 된다. 즉, 주재인 특수 고무의 완충기능으로 인하여 세그멘트의 파손 및 크랙현상을 방지할 수 있는 재질로 이루어진다. In addition, the water expansion index material of the present invention should have an excellent buffer function. That is, it is made of a material that can prevent segment breakage and cracking due to the cushioning function of the special rubber, which is the main material.

한편, 본 발명의 수팽창지수재는 간편한 시공과 뛰어난 안전성을 가져야 한다. 즉, 세그멘트 표면에 대한 접착성 및 씰 상호간의 접착성이 커서 시공이 간편하며, 유해물질 등을 전혀 사용하지 않아 안전하여 환경오염의 문제도 없는 재질로 이루어진다.On the other hand, the water expansion index material of the present invention should have a simple construction and excellent safety. In other words, it is made of a material that is safe because it does not use harmful substances at all, and has high adhesion to the surface of the segment and adhesion between the seals.

본 발명에 따른 핵심 공법은 첫째, 후행판넬(세컨드판넬)을 형성하는 후행판넬 철근망(122)에 철판(124) 및 'ㄱ'형강(126)을 활용하여 수팽창지수재(128)를 설치한다. 둘째, 양쪽(좌,우) 외부측에 100mm 오버컷팅 구간의 시공죠인트 중앙에 설치하고, 셋째, 시공이음부 오버컷팅 후 지수재 설치한다. The core construction method according to the present invention is first, using the iron plate 124 and the 'a'-shaped steel 126 in the trailing panel reinforcing bar network 122 that forms the trailing panel (second panel) to install the water expansion index material 128. do. Second, install it in the center of the construction joint of the 100mm overcut section on both (left and right) outer sides, and thirdly, install the water stop material after overcutting the construction joint.

본 발명은 지하연속벽의 경우 선행판넬 완료 후, 후행판넬 시공 시 시공이음부 위치에 B.C 굴착장비를 양쪽 100mm 정도 오버(Over) 컷팅하여 선행판넬 콘크리트 타설면을 처리하고 후행판넬 철근망에 수팽창 지수재를 설치하여 철근망을 근입 후 콘크리트를 타설하여 시공죠인트 구간의 지수처리를 확보할 수 있다. In the case of an underground continuous wall, after completing the preceding panel, when constructing the following panel, the BC excavation equipment is cut over 100 mm on both sides at the location of the construction joint to treat the concrete pouring surface of the preceding panel and water expansion to the reinforcing bar network of the following panel It is possible to secure the water-proof treatment of the construction joint section by installing the water-repellent material and pouring the concrete after reinforcing the reinforcing bar network.

본 발명에 따른 지하연속벽 누수방지를 위한 수팽창지수재 시공방법은 1차,2차 출착하여 선행판넬을 형성하고, 3차 굴착 후 근입할 후행판넬 철근 망(Secondary Panel)의 좌,우측에 철판과 'ㄱ'형강을 용접 후 접착제를 이용하여 철근으로 'ㄱ'형강에 수팽창 지수재 밀착시킨 뒤 1차, 2차 타설한 연속벽(선행판넬) 사이를 오버 컷팅 한 곳에 근입하여 콘크리트를 타설함으로서 후행판넬을 형성한다.According to the present invention, the water-expandable water expansion material construction method for preventing leakage of underground continuous walls is formed on the left and right sides of the secondary panel to be rooted after the first and second exits to form the preceding panel, and after the third excavation After welding the steel plate and the 'A'-beam, use adhesive to attach the water expansion index material to the 'A'-beam with reinforcing bars. The trailing panel is formed by pouring.

구체적으로, 도 7a표시와 같이 'ㄱ'형강을 준비하고, 도 7b표시와 같이 수팽창지수재를 준비하며, 도 7c표시와 같이 철판을 준비한다. Specifically, as shown in Fig. 7a, prepare a 'B' section, prepare a water-expandable material as shown in Fig. 7b, and prepare an iron plate as shown in Fig. 7c.

이와 같이 철판과 'ㄱ'형강 및 수팽창지수재가 준비된 상태에서 도 7d표시와 같이 후행판넬 철근망에 철판을 용접으로 고정하고, 도 7e표시와 같이 철판에 'ㄱ'형강을 용접으로 부착한 후, 도 7f표시와 같이 'ㄱ'형강에 수팽창지수재를 접착제로 부착 고정함가 아울러 철근을 이용하여 결속함으로서 수팽창지수재의 부착을 견고하게 한다. In this way, in the state where the steel plate, 'a' section steel and water expansion index material are prepared, the steel plate is fixed to the trailing panel reinforcing bar network by welding as shown in Fig. 7d, and after attaching the 'a' section to the steel plate by welding as shown in Fig. 7e , As shown in Fig. 7f, the water expansion index material is firmly attached to the 'a'-shaped steel by attaching and fixing it with an adhesive and binding it using reinforcing bars.

이후, 도 7g표시와 같이 선행판넬의 단부에 BC 에 굴착장비를 이용하여 오버커팅하고, 도 7h표시와 같이 후행판넬 철근망을 인양한 후, 도 7i표시와 같이 철근망을 근입하며, 도 7j 내지 7l표시와 같이 콘크리트 타설하여 후행판넬을 형성한다. 이때. 도 7j는 콘크리트 타설 전의 상태이고, 도 7k는 콘크리트 타설 중의 상태이며, 도 7l은 콘트리트 타설 후의 상태이다. After that, the end of the preceding panel is overcut by using an excavation equipment to BC as shown in Fig. 7g, and the reinforcing bar mesh of the trailing panel is lifted as shown in Fig. 7h, and then the rebar mesh is inserted as shown in Fig. 7i, and Fig. 7j To form the trailing panel by pouring concrete as shown in 7l. At this time. 7j is a state before concrete pouring, FIG. 7k is a state during concrete pouring, and FIG. 7L is a state after concrete pouring.

또한, 수팽창지수재를 1열로 설치하는 경우에는, 지하 수위의 유동성이 없거나 낮은 지역 지하연속벽 구조물, 혹은 도심지의 복잡한 차수 및 누수 등 안정성이 요구되는 지하연속벽 구조물의 경우 수팽창지수재를 1열로 설치하는 것이 바람직하다.In addition, in the case of installing the water expansion index material in one row, in the case of an underground continuous wall structure in an area with no or low fluidity of the underground water level, or an underground continuous wall structure that requires stability such as complicated water and leakage in downtown areas, the water expansion index material is used. It is preferable to install in one row.

수팽창지수재를 2열로 설치하는 경우에는, 지하수위의 유동성이 많거나 높은지역 지하연속벽 구조물, 혹은 해안가의 인접한 지하연속벽 구조물, 그리고 해양수 침투 및 오염수 배출을 요구하는 지하연속벽 및 차수벽 구조물의 경우 수팽창지수재를 2열로 설치하는 것이 바람직하다.본 발명은 연결구간 수직구 지하연속벽 구조물 등 모두 적용 가능하다. In the case of installing the water expansion index material in two rows, an underground continuous wall structure in an area where the fluidity of the groundwater level is high or high, or a continuous underground wall structure adjacent to the shore, and an underground continuous wall requiring seawater infiltration and polluted water discharge; In the case of an order wall structure, it is preferable to install the water expansion index material in two rows. The present invention can be applied to both vertical and continuous underground wall structures in the connection section.

이와 같이 시공하는 본 발명은 다음과 같은 사항에 유의하여야 한다. The present invention constructed in this way should pay attention to the following matters.

① B.C 커터 장비(굴착장치)의 오버컷팅 구간의 철근 피복이 50mm~100mm로 설계되는바, 수팽창 지수제의 규격과 팽창 부피를 고려하여 자재 치수 선정에 유의하여야 한다.① Since the rebar cover of the overcutting section of the B.C cutter equipment (excavator) is designed to be 50mm to 100mm, care must be taken in selecting the material dimensions considering the size and expansion volume of the water expansion index agent.

② 'ㄱ'형강에 수팽창 지수재 접착시 전용 접착제를 사용하여 탈락을 방지하여야 한다.② When attaching the water expansion index material to the 'a' section steel, use an exclusive adhesive to prevent falling off.

③ 해수와 인접지역 및 지하수가 상당한 지역은 반드시 2열 설치 공법을 적용하여야 한다.③ The two-row installation method must be applied to areas adjacent to seawater and to areas with significant groundwater.

④ 지하연속벽 후행 판넬의 철근망 근입시 수팽창 지수재가 파손되지 않도록 각별히 주의해서 서서히 근입하여야 한다.④ When reinforcing the reinforcing bar network of the panel following the continuous underground wall, take special care not to damage the water expansion index material and insert it slowly.

⑤ 수팽창 지수재의 이음시 겹이음 50mm 이상 겹쳐 시공하여야 한다.⑤ When the water expansion index material is joined, it shall be constructed with an overlap of 50 mm or more.

⑥ 후행 굴착 후 반드시 안정액(벤토나이트)을 100%이상으로 교체하여, 스라임 1%이하로 체크 후, 8시간 안에 타설을 시작하여 지수팽창의 효율성을 높인다.⑥ After excavation, be sure to replace the stabilizing liquid (bentonite) with 100% or more, check the lime 1% or less, and start pouring within 8 hours to increase the efficiency of exponential expansion.

본 발명에 따르면, 지하연속벽 죠인트의 방수성 향상된다. 일반적으로 시행되는 지하연속벽 죠인트의 죠인트 유도 방수는 방수차단 보다는 누수부위의 지하수를 유도하여 처리하는 것으로 방수효과를 얻을 수 없는 문제점이 있었으나, 본 발명의 지하연속벽 죠인트는 시공 중 수팽창 지수재를 매입하여 콘크리트와 같이 양생되고 팽창되어 보다 향상된 방수 성능을 확보 할 수 있는 장점이 있다. According to the present invention, the waterproofness of the underground continuous wall joint is improved. In general, joint-induced waterproofing of joint-inducing continuous-wall joints has a problem in that it is impossible to obtain a waterproofing effect by inducing and treating the groundwater in the leaking area rather than blocking waterproofing. It has the advantage of being able to secure improved waterproofing performance as it is cured and expanded like concrete.

또한, 본 발명은 품질 균일성 시공이 가능하다. 지하연속벽 죠인트 처리를 사전 철근망에 설치하여 콘크리트 시공과 병행 할 수 있어 각각의 죠인트 방수시공이 균등한 품질을 얻을 수 있다.In addition, the present invention is capable of uniform quality construction. Since the joint treatment of the underground continuous wall can be installed in the pre-reinforced rebar network, it can be done in parallel with the concrete construction, so that the waterproof construction of each joint can obtain equal quality.

또한, 본 발명은 보콘크리트 내구성 향상시킬 수 있다. 지하연속벽의 죠인트 구간의 누수로 인한 콘크리트 내부 철근이 염분에 의해 산화되는 것을 방지하는 우수한 방청 성능을 기대할 수 있고, 이로 인한 콘크리트 내구성 증진 효과를 얻을 수 있다.In addition, the present invention can improve the durability of the boconcrete. Excellent anti-rust performance can be expected to prevent oxidation of reinforcing bars inside concrete due to water leakage in the joint section of the underground continuous wall, and thus, the effect of enhancing concrete durability can be obtained.

이상에서와 같은 기술적 구성에 의해 본 발명의 기술적 과제가 달성되는 것이며, 비록 한정된 실시예와 도면에 의해 설명되었으나 여기에 한정되지 않고 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 본 발명의 기술사상과 아래에 기재될 특허청구범위의 균등범위 내에서 다양한 수정 및 변형이 가능한 것임은 물론이다.The technical problem of the present invention is achieved by the technical configuration as described above, and although it has been described with reference to the limited embodiments and drawings, the present invention is not limited thereto and the present invention can be achieved by those skilled in the art to which the present invention pertains. It goes without saying that various modifications and variations are possible within the equivalent scope of the technical spirit of the claims and the claims to be described below.

100 - 선행판넬 120 - 후행판넬
122 - 후행판넬 철근망 124 - 철판
126 - 'ㄱ'형강 128 - 수팽창지수재100 - leading panel 120 - trailing panel
122 - Trailing panel rebar mesh 124 - Steel plate
126 - 'a' section steel 128 - water expansion material

Claims (5)

지하연속벽 누수방지를 위한 수팽창지수재 시공방법에 있어서,
지하연속벽을 형성하도록 선행판넬들을 소정 간격으로 형성하는 제1단계;
상기 선행판넬 완료 후, 후행판넬 시공 시 시공이음부 위치에 굴착장비를 이용하여 후행판넬 양쪽으로 100mm의 오버(Over) 컷팅하도록 선행판넬 콘크리트 타설면을 처리하는 제2단계; 및
상기 선행판넬들의 사이에 후행판넬을 형성하되, 상기 선행판넬과 후행판넬의 시공이음부에 죠인트 처리되도록 후행판넬을 형성하는 제3단계;를 포함하고,
상기 제3단계는:
상기 후행판넬을 형성하기 위한 후행판넬 철근망의 양측에 수팽창지수재가 밀착되도록 부착하는 수팽창지수재 부착단계;
상기 수팽창지수재가 부착된 후행판넬 철근망을 선행판넬의 사이에 근입하되, 상기 수팽창지수재가 오버컷팅 형성된 구간에 위치되도록 상기 후행판넬 철근망을 근입하는 후행판넬 철근망 근입단계; 및
상기 후행판넬 철근망을 근입 후 콘크리트를 타설하여 후행판넬을 형성하는 콘크리트 타설단계;를 포함하는 것을 특징으로 하는 지하연속벽 누수방지를 위한 수팽창지수재 시공방법.
In the construction method of the water expansion index material for preventing leakage of the underground continuous wall,
A first step of forming the preceding panels at predetermined intervals to form a continuous underground wall;
After completion of the preceding panel, a second step of processing the concrete pouring surface of the preceding panel to over-cut the following panel by 100 mm on both sides of the succeeding panel using an excavation equipment at the construction joint position during the construction of the succeeding panel; and
A third step of forming a succeeding panel between the preceding panels, but forming a succeeding panel so as to be jointly processed at a construction joint of the preceding panel and the succeeding panel;
The third step is:
A water expansion index material attachment step of attaching the water expansion index material to both sides of the trailing panel reinforcing bar network to form the trailing panel;
A trailing panel reinforcing bar network reinforcing step of reinforcing the trailing panel reinforcing bar network to which the water expansion index material is attached between the preceding panels, but inserting the reinforcing bar network of the trailing panel so that the water expansion index material is located in an overcutting section; and
Concrete pouring step of forming the trailing panel by pouring concrete after reinforcing the trailing panel reinforcing bar network;
 제1항에 있어서,
상기 수팽창지수재 부착단계는:
상기 수팽창지수재를 후행판넬 철근망의 좌우측면에 밀착시켜 부착 고정할 수 있도록 상기 후행판넬 철근망의 좌우 양측면에 수직 방향으로 철판을 용접하고, 상기 철판에 'ㄱ'형강을 수직 방향으로 용접한 후 상기 'ㄱ'형강에 수팽창지수재를 접착제를 이용하여 부착 고정하는 것을 특징으로 하는 지하연속벽 누수방지를 위한 수팽창지수재 시공방법.
The method of claim 1,
The step of attaching the water expansion index material is:
Weld the steel plate in the vertical direction to the left and right sides of the trailing panel reinforcing bar network so that the water expansion index material can be attached and fixed to the left and right side surfaces of the trailing panel reinforcing bar network, and 'a'-shaped steel is welded to the steel plate in the vertical direction After the construction, the water-expandable water-expandable material construction method for preventing leakage of underground continuous walls, characterized in that the water-expandable water-expandable material is attached and fixed to the 'a'-shaped steel using an adhesive.
 제1항 또는 제2항에 있어서,
상기 수팽창지수재 부착단계는:
상기 후행판넬 철근망의 좌우 양측면에 수팽창지수재가 1열 혹은 2열로 설치되는 것을 특징으로 하는 지하연속벽 누수방지를 위한 수팽창지수재 시공방법.
3. The method of claim 1 or 2,
The step of attaching the water expansion index material is:
A method of constructing a water-expandable water-expandable material for preventing leakage of a continuous underground wall, characterized in that the water-expandable water-expandable material is installed in one or two rows on both left and right sides of the reinforcing bar network of the trailing panel.
 지하연속벽 누수방지를 위한 수팽창지수재 시공구조에 있어서,
지하연속벽을 형성하는, 소정 간격으로 형성되는 선행판넬들; 및
상기 선행판넬들의 사이에 형성되며, 상기 선행판넬과 후행판넬의 시공이음부에 죠인트 처리되도록 형성되는 후행판넬;을 포함하고,
상기 후행판넬은:
후행판넬 철근망;
상기 후행판넬 철근망의 좌우 양측에 수직 방향으로 각각 용접된 좌우측 철판;
상기 좌우측 철판에 수직 방향으로 각각 용접된 좌우측 'ㄱ'형강; 및
상기 좌우측 'ㄱ'형강에 수직 방향으로 접착제에 의해 각각 밀착되도록 부착 고정되어 선행판넬과 후행판넬의 시공이음부에 죠인트 처리되도록 설치되는 수팽창지수재;를 포함하는 것을 특징으로 지하연속벽 누수방지를 위한 수팽창지수재 시공구조.
In the construction structure of the water-expandable water expansion material for the prevention of leakage of the underground continuous wall,
Preceding panels formed at predetermined intervals to form a continuous underground wall; and
A trailing panel formed between the preceding panels and formed to be jointly processed at a construction joint of the preceding panel and the succeeding panel;
The trailing panel is:
trailing panel reinforcing bars;
Left and right iron plates welded to the left and right sides of the rear panel reinforcing bar network in a vertical direction, respectively;
left and right 'a' sections welded to the left and right iron plates in a vertical direction; and
The water expansion index material is installed so that it is attached and fixed in close contact with the left and right 'a'-shaped steel in the vertical direction by an adhesive, and is jointly treated at the construction joint of the preceding panel and the succeeding panel; Construction structure of water expansion index material for
 제4항에 있어서,
상기 수팽창지수재는 후행판넬 철근망의 좌우측면에 1열 혹은 2열로 설치되는 것을 특징으로 하는 지하연속벽 누수방지를 위한 수팽창지수재 시공구조.5. The method of claim 4,
The water expansion index material is a water expansion index material construction structure for preventing leakage of underground continuous walls, characterized in that installed in one or two rows on the left and right sides of the trailing panel reinforcing bar network.
KR1020200112312A 2020-09-03 2020-09-03 Construction method and construction structure of water expansion index to prevent leakage of underground continuous wall KR20220030686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020200112312A KR20220030686A (en) 2020-09-03 2020-09-03 Construction method and construction structure of water expansion index to prevent leakage of underground continuous wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020200112312A KR20220030686A (en) 2020-09-03 2020-09-03 Construction method and construction structure of water expansion index to prevent leakage of underground continuous wall

Publications (1)

Publication Number Publication Date
KR20220030686A true KR20220030686A (en) 2022-03-11

Family

ID=80814602

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020200112312A KR20220030686A (en) 2020-09-03 2020-09-03 Construction method and construction structure of water expansion index to prevent leakage of underground continuous wall

Country Status (1)

Country Link
KR (1) KR20220030686A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114809115A (en) * 2022-05-27 2022-07-29 中建八局第三建设有限公司 Force-transferring profiled steel post-cast strip shaped assembling interception construction method
CN115324069A (en) * 2022-08-18 2022-11-11 中铁十六局集团北京轨道交通工程建设有限公司 Construction method for sectional hoisting and inserting type steel TRD supporting structure under low clearance
WO2024063292A1 (en) * 2022-09-22 2024-03-28 오창균 Method for constructing water-expandable waterstop for preventing slurry wall water leakage and structure for constructing same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020046904A (en) 2001-08-04 2002-06-21 김영길 A method of construction for the breast wall
KR20090007826A (en) 2007-07-16 2009-01-21 김창근 Process of blocking water penetration and blocking earth collapsing by using impermeable wall without strut

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020046904A (en) 2001-08-04 2002-06-21 김영길 A method of construction for the breast wall
KR20090007826A (en) 2007-07-16 2009-01-21 김창근 Process of blocking water penetration and blocking earth collapsing by using impermeable wall without strut

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114809115A (en) * 2022-05-27 2022-07-29 中建八局第三建设有限公司 Force-transferring profiled steel post-cast strip shaped assembling interception construction method
CN115324069A (en) * 2022-08-18 2022-11-11 中铁十六局集团北京轨道交通工程建设有限公司 Construction method for sectional hoisting and inserting type steel TRD supporting structure under low clearance
WO2024063292A1 (en) * 2022-09-22 2024-03-28 오창균 Method for constructing water-expandable waterstop for preventing slurry wall water leakage and structure for constructing same

Similar Documents

Publication Publication Date Title
KR20220030686A (en) Construction method and construction structure of water expansion index to prevent leakage of underground continuous wall
KR100910576B1 (en) Embed anchor and construction method of composite basement wall using the same
KR101331261B1 (en) Underground prefabricated precast concrete rainwater recycling facility using precast concrete continuous wall in strut structure or earth anchor and construction method of the same
KR101973565B1 (en) Sheathing method for constructing both sheathing wall and cutoff collar by welding cutoff plate to phc pile with longitudinal plate
KR100927186B1 (en) Method of constructing cantilevered continuous wallsfor retaining earth and cutting off water
KR100862977B1 (en) Precast concrete file and method for constructing thereof
KR101041274B1 (en) Retaining wall grouting structure and method for constructing thereof
CN106812131B (en) A kind of permanent sheet pile underground structure and its construction method
KR101975297B1 (en) Multi-wall construction method using multi-wall construction supporting files and supporting files used for construction of harbors, rivers, dams and concrete that can prevent the inflow of soil and water
KR101029040B1 (en) Soil retaining wall having distance maintenance h-pile for an erosion shield and constructing method thereof
KR101973566B1 (en) Sheathing method for constructing both sheathing wall and cutoff collar by bolting cutoff plate to phc pile with longitudinal plate
CN106759365A (en) A kind of counterfort wing wall waterproof curtain construction method of foundation pit enclosure wall
KR101045932B1 (en) Composite steel sheet pile and this construction technique
CN210636441U (en) Guide partition wall
CN111778995B (en) Foundation pit protection structure and construction method thereof
KR101074881B1 (en) cut-off wall using sheet pile working method
KR20120054290A (en) Wall pile
KR20240040874A (en) Construction method and construction structure of water expansion index to prevent leakage of underground continuous wall
Williams et al. Design of cut-and-cover tunnels and stations: current practice
CN110629778A (en) Construction method for stopping leakage of waterproof curtain
CN218643414U (en) Foam concrete counterfort retaining wall protective structure
KR101352429B1 (en) Water-proofing type temporary soil sheathing construction method using crrugated steel plate segments
KR102554205B1 (en) Slurry wall joint connect method
CN217026767U (en) Existing culvert structure is striden on open cut tunnel
CN217870574U (en) Structure for applying locking steel sheet pile to water-stop curtain between piles

Legal Events

Date Code Title Description
AMND Amendment
AMND Amendment
X091 Application refused [patent]
J301 Trial decision

Free format text: TRIAL NUMBER: 2021101002183; TRIAL DECISION FOR APPEAL AGAINST DECISION TO DECLINE REFUSAL REQUESTED 20210823

Effective date: 20220712

E902 Notification of reason for refusal
AMND Amendment
S601 Decision to reject again after remand of revocation
X091 Application refused [patent]
S601 Decision to reject again after remand of revocation
J201 Request for trial against refusal decision
J301 Trial decision

Free format text: TRIAL NUMBER: 2023101001208; TRIAL DECISION FOR APPEAL AGAINST DECISION TO DECLINE REFUSAL REQUESTED 20230607

Effective date: 20230725