KR102360372B1 - Top-down construction method using an elevating movable truss body - Google Patents

Top-down construction method using an elevating movable truss body Download PDF

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KR102360372B1
KR102360372B1 KR1020210020876A KR20210020876A KR102360372B1 KR 102360372 B1 KR102360372 B1 KR 102360372B1 KR 1020210020876 A KR1020210020876 A KR 1020210020876A KR 20210020876 A KR20210020876 A KR 20210020876A KR 102360372 B1 KR102360372 B1 KR 102360372B1
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vertical beam
vertical
connection bracket
horizontal
jockey
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최종배
구본민
최동명
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주식회사 유앤씨
(주)피아이컴퍼니
최종배
최동명
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/045—Underground 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
    • E02D29/05—Underground 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 at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
    • E02D29/055—Underground 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 at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench further excavation of the cross-section proceeding underneath an already installed part of the structure, e.g. the roof of a tunnel
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2200/00—Geometrical or physical properties
    • E02D2200/14—Geometrical or physical properties resilient or elastic
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/20—Miscellaneous comprising details of connection between elements
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/30—Miscellaneous comprising anchoring details

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)

Abstract

본 발명은 지하구축물의 슬라브를 시공함에 있어서 슬라브거푸집이 구비되고 수직빔에 대해 크로스 교차 연결된 수평바를 수직지지체에 의해 쉽고 간단하게 하강시킬 수 있을 뿐만 아니라 하강된 수평바를 수직빔에 대해 수직지지체와 수평지지체로 견고하게 고정할 수 있음에 따라, 지하층에 대한 슬라브 구축시에 각 층의 슬라브 구축시공작업이 용이하게 이루어질 수 있어 작업시간의 단축은 물론 작업비용을 크게 절감할 수 있으며, 유압자키에 의해 수평바가 흙막이벽체의 띠장부측으로 밀리는 상태가 유지될 수 있어 콘크리트 타설 중 수평바 및 슬라브거푸집을 견고하게 지지할 수 있으며, 트러스체를 그대로 하강시켜 재 설치 고정하고 콘크리트를 타설하여 슬라브를 구축할 수 있기 때문에 시공시간을 크게 단축할 수 있으며 지하벽체와의 견고한 지지성에 의해 슬라브 구축을 위한 콘크리트 타설 도중 트러스체가 붕괴되는 것을 방지할 수 있으며 시공시간의 단축과 시공비용의 절감 효과를 얻을 수 있는 승하강 이동식 트러스체를 이용한 탑다운공법이 개시된다.In the present invention, in constructing a slab of an underground structure, a horizontal bar provided with a slab formwork and cross-connected with respect to a vertical beam can be easily and simply lowered by a vertical support, and the lowered horizontal bar can be moved horizontally with a vertical support for a vertical beam. As it can be firmly fixed with the support, the slab construction work of each floor can be easily made when constructing the slab for the basement floor, thereby shortening the working time and greatly reducing the working cost. The horizontal bar can be maintained in a state of being pushed toward the rib section of the retaining wall, so it can firmly support the horizontal bar and slab formwork during concrete pouring. Therefore, the construction time can be greatly shortened, and the truss body can be prevented from collapsing during the concrete pouring for slab construction by its strong support with the underground wall, and elevating and lowering can reduce the construction time and reduce the construction cost. A top-down method using a movable truss body is disclosed.

Description

승하강 이동식 트러스체를 이용한 탑다운공법{Top-down construction method using an elevating movable truss body}Top-down construction method using an elevating movable truss body

본 발명은 승하강 이동식 트러스체를 이용한 탑다운공법에 관한 것으로, 더욱 상세하게는 탑다운공법으로 지하 구조물을 신축함에 있어서 승하강 이동이 가능한 트러스체를 이용하여 시공함에 따라 지하 구조물의 슬라브 구축작업을 간단하게 할 수 있을 뿐만 아니라 시공시간의 단축은 물론 시공비용을 크게 절감할 수 있도록 한 승하강 이동식 트러스체를 이용한 탑다운공법에 관한 것이다.The present invention relates to a top-down construction method using an ascending and descending movable truss body, and more particularly, in constructing an underground structure by the top-down method, the slab construction work of the underground structure as it is constructed using a truss body capable of ascending and descending movement It relates to a top-down construction method using an elevating and descending movable truss body that can simplify construction, shorten construction time, and significantly reduce construction costs.

일반적으로 탑다운(Top-down)공법은 도심지 공사와 같이 밀집 지역에서 주변에의 영향을 최소화하기 위하여 지상에서 지하로 내려가면서 지하 구조물을 형성하는 시공법으로, 대개 상층의 슬라브보를 위한 거푸집을 설치하고 거푸집에 콘크리트를 타설한 후 양생한 후, 상층 슬라브보의 양생이 끝나면 거푸집을 상층 슬라브보로부터 탈형하여 형태를 유지하면서 하강시켜 지하구조물을 시공한다.In general, the top-down method is a construction method in which an underground structure is formed while going down from the ground to the basement in order to minimize the influence of the surrounding area in a dense area like urban construction. After the concrete is poured into the formwork and cured, when the upper slab beam is cured, the formwork is demolded from the upper slab beam and lowered while maintaining its shape to construct the underground structure.

이 때 하강된 거푸집은 하층 슬라브보를 형성하기 위해 재사용되고 있으며, 이에 따라 탑다운공법은 슬라브보를 위한 거푸집을 반복 하강하면서 지하구조물을 신축하고 있다.At this time, the lowered formwork is reused to form the lower slab beam, and the top-down method is constructing the underground structure while repeatedly descending the formwork for the slab beam.

종래 기술을 살펴보면, 등록특허 10-2123543호인 중앙 철골기둥을 이용한 탑다운 공법이 안출된 바 있으며, 이는 지하 구조물의 구축시 구조물을 하향식으로 축조해 나가는 탑다운 공법에 있어서, 지중에 흙막이벽체를 구축하는 흙막이벽시공단계와, 흙막이벽체에 의해 둘러싸인 내부 공간에 철골기둥을 지상으로부터 수직으로 박아 설치하는 기둥시공단계와, 흙막이벽체의 내측을 소정 깊이로 굴토하여 터파기 작업을 수행하고 터파기 작업에 의해 노출된 흙막이벽체의 측면에 수평으로 띠장을 설치하는 띠장설치단계와, 서로 마주보는 띠장과 그 사이의 철골기둥을 연결하는 수평보를 설치하는 수평보설치단계로 이루어져 있으며, 띠장설치단계와 수평보설치단계가 반복 실시되며 내부 공간에 설계에 따라 벽체와 바닥 및 기초를 시공하도록 하고 있다.Looking at the prior art, a top-down method using a central steel column has been devised, which is Patent No. 10-2123543, which is a top-down method of constructing a structure in a top-down manner when constructing an underground structure. The retaining wall construction step of It consists of a wale installation step of installing a wale horizontally on the side of the retaining wall exposed by the The installation steps are repeated, and walls, floors and foundations are constructed in the interior space according to the design.

이러한 종래 기술은, 중앙 기둥을 시공하지 않고 공장에서 제작되는 철골기둥을 설치함으로써 재료비가 절감되고 공정이 단순화되어 공기를 절감할 수 있도록 하고는 있으나, 철골기둥과 수평보를 용접작업에 의해 시공함에 따라 시공시간이 지연됨은 물론 시공비용이 증대되는 문제점이 있다.This prior art saves material cost and simplifies the process by installing a steel column manufactured in a factory without constructing a central column, but saves air, but as the steel column and horizontal beam are constructed by welding, There is a problem in that construction time is delayed as well as construction cost increases.

근자들어서는 트러스형 지지체를 이용한 탑다운공법이 제안되고 있으며, 일예로 공개특허 10-2020-0032316호인 트러스형 지지체를 이용한 탑다운 방식의 지하 구조물 형성 방법이 안출된 바 있다.Recently, a top-down method using a truss-type support has been proposed, and as an example, a method for forming an underground structure of a top-down method using a truss-type support has been devised, which is disclosed in Patent Publication No. 10-2020-0032316.

종래 공개특허 10-2020-0032316호의 경우 탑다운 방식의 지하 구조물 형성 방법에 있어서, 기둥 부재를 지반에 설치하는 단계, 상기 기둥 부재에 브라켓 부재를 결합하는 단계, 상기 브라켓 부재의 상부에 횡방향으로 트러스형 지지체를 설치하는 단계, 상기 트러스형 지지체 상부에 각형 부재를 고정하는 단계로 이루어져 있으며 트러스형 지지체를 이용함에 따라 시공시간을 단축하도록 하고 있다.In the case of conventional Patent Publication No. 10-2020-0032316, in the method for forming a top-down underground structure, installing a column member to the ground, coupling a bracket member to the column member, and transversely to the upper portion of the bracket member It consists of a step of installing a truss-type support, and a step of fixing a rectangular member on the upper part of the truss-type support, and the construction time is shortened by using the truss-type support.

그러나, 종래 기술의 경우 트러스형 지지체의 하강이 용이하지 못할 뿐만 아니라 기초벽체와 트러스형 지지체와의 지지성이 저하되는 문제점이 있다.However, in the case of the prior art, there is a problem in that the lowering of the truss-type support is not easy as well as the supportability of the foundation wall and the truss-type support is lowered.

이에 따라, 반복적인 하강 이동에 의해 건물의 지하층 슬라브보의 구축이 용이하도록 함은 물론 트러스체의 하강작업이 용이하게 이루어지고 트러스체와 기초벽체와의 견고한 지지성이 향상된 기술개발이 절실하게 요구되는 실정이다.Accordingly, it is urgently required to develop a technology that facilitates the construction of the basement slab beam of a building by repeated lowering movement, as well as facilitates the lowering of the truss body and improves the solid support between the truss body and the foundation wall. It is becoming a situation.

특허문헌 1 : 대한민국등록특허 10-2123543호(2020.06.10. 등록)Patent Document 1: Republic of Korea Patent No. 10-2123543 (Registered on June 10, 2020) 특허문헌 2 : 대한민국공개특허 10-2020-0032316호(2020.03.26. 공개)Patent Document 2: Republic of Korea Patent Publication No. 10-2020-0032316 (published on March 26, 2020)

본 발명은 건물의 지하층을 구축함에 있어서 트러스체를 이용하여 콘크리트 타설에 의한 지하층 슬라브의 시공이 가능하도록 하고 트러스체를 그대로 하강시켜 반복 사용하도록 함에 따라 시공시간을 크게 단축할 수 있으며 지하벽체와의 견고한 지지성에 의해 슬라브 구축을 위한 콘크리트 타설 도중 트러스체가 붕괴되는 것을 방지할 수 있으며 시공시간의 단축과 시공비용의 절감을 유도할 수 있는 승하강 이동식 트러스체를 이용한 탑다운공법을 제공함에 그 목적이 있다.The present invention enables the construction of the basement slab by concrete pouring using the truss body in constructing the basement of a building, and by lowering the truss body as it is to be used repeatedly, the construction time can be greatly reduced, and the The purpose is to provide a top-down construction method using an elevating and descending movable truss body that can prevent the truss body from collapsing during concrete pouring for slab construction by its strong support and can lead to reduction of construction time and construction cost. have.

상기 목적을 달성하기 위한 수단으로 본 발명인 승하강 이동식 트러스체를 이용한 탑다운공법은, 지중에 흙막이벽체와 띠장부를 구축하는 흙막이벽체구축단계와 구축된 흙막이벽체의 내측에 수직방향으로 복수개 수직빔을 박아 설치하는 수직빔설치단계를 포함하는 탑다운공법에 있어서, 복수개 수직빔을 크로스 교차 연결하는 수평바 및 수평바 상단에 구비된 슬라브거푸집을 갖는 트러스체의 슬라브거푸집에 콘크리트를 타설하기 전, 수직지지체연결단계에 의해 수평바와 수직빔을 연결하여 지지하고 수평지지체연결단계에 의해 수평바를 흙막이벽체의 띠장부에 연결하여 지지하되, 상기 수직지지체연결단계는, 복수개 수직빔을 크로스 교차하는 수평바와 수직빔을 수직지지체로 연결하되 수직지지체의 제1수직빔상부연결브라켓과 제2수직빔상부연결브라켓을 서로 마주보도록 수직빔의 외면 일측과 타측에 서로 마주보도록 위치한 후 제1수직빔상부연결브라켓과 제2수직빔상부연결브라켓을 볼팅 연결하여 수평바와 수직빔을 연결하고 제1수직빔상부연결브라켓과 제2수직빔상부연결브라켓이 연결된 수직빔의 하부측에 제1수직빔하부연결브라켓과 제2수직빔하부연결브라켓을 서로 마주보도록 위치한 후 제1수직빔하부연결브라켓과 제2수직빔하부연결브라켓을 볼팅 연결한 다음 제1수직빔상부연결브라켓과 제1수직빔하부연결브라켓을 제1수직유압자키로 연결하여 지지하고 제2수직빔상부연결브라켓과 제2수직빔하부연결브라켓을 제2수직유압자키로 연결하여 지지하도록 이루어지고, 상기 수평지지체연결단계는, 수평바와 볼팅고정된 수평지지체의 수평지지몸체로부터 수평지지가이드를 인출하되 수평유압자키에 의해 수평지지가이드를 인출한 후 인출된 수평지지가이드의 띠장연결대를 흙막이벽체의 띠장부와 볼팅고정하여 이루어진다.As a means for achieving the above object, the top-down construction method using the elevating movable truss body of the present invention is a retaining wall construction step of constructing a retaining wall and a sash in the ground, and a plurality of vertical beams in the vertical direction on the inside of the constructed retaining wall. In the top-down method comprising a vertical beam installation step of driving and installing, before pouring concrete into the slab formwork of a truss body having a horizontal bar that cross-connects a plurality of vertical beams and a slab formwork provided on the top of the horizontal bar, A horizontal bar and a vertical beam are connected and supported by the vertical support connecting step, and the horizontal bar is connected to and supported by the band tenon of the retaining wall by the horizontal support connecting step, wherein the vertical support connecting step includes a horizontal bar that crosses a plurality of vertical beams After connecting the vertical beam to the vertical support, the first vertical beam upper connection bracket and the second vertical beam upper connection bracket of the vertical support are positioned to face each other on one side and the other side of the outer surface of the vertical beam to face each other, and then the first vertical beam upper connection bracket and the second vertical beam upper connection bracket are connected by bolting to connect the horizontal bar and the vertical beam, and the first vertical beam lower connection bracket and the lower side of the vertical beam to which the first vertical beam upper connection bracket and the second vertical beam upper connection bracket are connected After positioning the second vertical beam lower connection bracket to face each other, the first vertical beam lower connection bracket and the second vertical beam lower connection bracket are connected by bolting, and then the first vertical beam upper connection bracket and the first vertical beam lower connection bracket are removed. 1 is connected and supported by a vertical hydraulic jack key, and the second vertical beam upper connection bracket and the second vertical beam lower connection bracket are connected and supported by a second vertical hydraulic jack key, and the horizontal support connecting step is fixed by bolting with a horizontal bar The horizontal support guide is drawn out from the horizontal support body of the horizontal support body, and the horizontal support guide is pulled out by the horizontal hydraulic jack, and then the wale joint of the drawn horizontal support guide is bolted to the retaining wall.

본 발명은 지하구축물의 슬라브를 시공함에 있어서 슬라브거푸집이 구비되고 수직빔에 대해 크로스 교차 연결된 수평바를 수직지지체에 의해 쉽고 간단하게 하강시킬 수 있을 뿐만 아니라 하강된 수평바를 수직빔에 대해 수직지지체와 수평지지체로 견고하게 고정할 수 있음에 따라, 지하층에 대한 슬라브 구축시에 각 층의 슬라브 구축시공작업이 용이하게 이루어질 수 있어 작업시간의 단축은 물론 작업비용을 크게 절감할 수 있으며, 유압자키에 의해 수평바가 흙막이벽체의 띠장부측으로 밀리는 상태가 유지될 수 있어 콘크리트 타설 중 수평바 및 슬라브거푸집을 견고하게 지지할 수 있으며, 트러스체를 그대로 하강시켜 재 설치 고정하고 콘크리트를 타설하여 슬라브를 구축할 수 있기 때문에 시공시간을 크게 단축할 수 있으며 지하벽체와의 견고한 지지성에 의해 슬라브 구축을 위한 콘크리트 타설 도중 트러스체가 붕괴되는 것을 방지할 수 있으며 시공시간의 단축과 시공비용의 절감 효과를 얻을 수 있다.In the present invention, in constructing a slab of an underground structure, a horizontal bar provided with a slab formwork and cross-connected with respect to a vertical beam can be easily and simply lowered by a vertical support, and the lowered horizontal bar can be moved horizontally with a vertical support for a vertical beam. As it can be firmly fixed with the support, the slab construction work of each floor can be easily made when constructing the slab for the basement floor, thereby shortening the working time and greatly reducing the working cost. The horizontal bar can be maintained in a state of being pushed toward the rib section of the retaining wall, so it can firmly support the horizontal bar and slab formwork during concrete pouring. Therefore, the construction time can be greatly shortened, and the truss body can be prevented from collapsing during concrete pouring for slab construction by its solid support with the underground wall, and the effect of shortening the construction time and reducing the construction cost can be obtained.

도 1은 본 발명인 승하강 이동식 트러스체를 이용한 탑다운공법을 나타낸 공정도이다.
도 2 및 도 3은 본 발명인 승하강 이동식 트러스체를 이용한 탑다운공법에 의해 지하구축물의 층간슬라브 시공을 나타낸 개념도이다.
도 4는 본 발명인 승하강 이동식 트러스체를 이용한 탑다운공법의 수직지지체 구성을 나타낸 분해사시도이다.
도 5는 본 발명인 승하강 이동식 트러스체를 이용한 탑다운공법의 수직지지체가 수직빔에 설치된 상태의 사시도이다.
도 6은 본 발명인 승하강 이동식 트러스체를 이용한 탑다운공법의 수직지지체 정면구성도이다.
도 7은 본 발명인 승하강 이동식 트러스체를 이용한 탑다운공법의 수직지지체 측면구성도이다.
도 8은 본 발명인 승하강 이동식 트러스체를 이용한 탑다운공법의 수직지지체 하강상태 구성도이다.
도 9는 본 발명인 승하강 이동식 트러스체를 이용한 탑다운공법의 수직지지체 하강 후 고정상태 구성도이다.
도 10은 본 발명인 승하강 이동식 트러스체를 이용한 탑다운공법의 수평지지체 구성을 나타낸 측면구성도이다.
도 11은 본 발명인 승하강 이동식 트러스체를 이용한 탑다운공법의 수평지지체 구성을 나타낸 평면구성도이다.
도 12는 본 발명인 승하강 이동식 트러스체를 이용한 탑다운공법의 수평지지체 작동상태 구성도이다.1 is a process diagram showing a top-down construction method using the present invention elevating movable truss body.
2 and 3 are conceptual views showing the construction of the interlayer slab of the underground structure by the top-down method using the elevating movable truss body of the present invention.
Figure 4 is an exploded perspective view showing the configuration of the vertical support of the top-down method using the present invention elevating movable truss body.
5 is a perspective view of a state in which the vertical support of the top-down method using the elevating movable truss body of the present invention is installed on the vertical beam.
6 is a front view of the vertical support body of the present invention using the elevating movable truss body of the top-down method.
7 is a side view of the vertical support of the present invention using the elevating movable truss body of the top-down method.
8 is a configuration diagram of the vertical support body descending of the top-down method using the elevating movable truss body according to the present invention.
9 is a configuration diagram of a fixed state after lowering of the vertical support of the top-down method using the elevating movable truss body according to the present invention.
10 is a side view showing the configuration of the horizontal support body of the present invention, the top-down method using the elevating movable truss body.
11 is a plan view showing the configuration of the horizontal support body of the present invention, the top-down method using the elevating movable truss body.
12 is a block diagram of the operating state of the horizontal support of the top-down method using the elevating movable truss body of the present invention.

이하, 상기 목적외에 본 발명의 다른 목적 및 특징들은 첨부 도면을 참조한 실시예에 대한 설명을 통하여 명백히 드러나게 될 것이다.Hereinafter, in addition to the above objects, other objects and features of the present invention will become apparent through the description of the embodiments with reference to the accompanying drawings.

다르게 정의되지 않는 한, 기술적이거나 과학적인 용어를 포함해서 여기서 사용되는 모든 용어들은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 일반적으로 이해되는 것과 동일한 의미를 가지고 있다. 일반적으로 사용되는 사전에 정의되어 있는 것과 같은 용어들은 관련 기술의 문맥상 가지는 의미와 일치하는 의미를 가진 것으로 해석되어야 하며, 본 출원에서 명백하게 정의하지 않는 한, 이상적이거나 과도하게 형식적인 의미로 해석되지 않는다.Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

이하에서는, 본 발명의 실시예에 따른 승하강 이동식 트러스체를 이용한 탑다운공법을 첨부된 도면을 참고하여 좀 더 구체적으로 설명한다.Hereinafter, a top-down construction method using an elevating movable truss body according to an embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

본 발명은 수직지지체와 수평지지체를 이용하여 복수개 수직빔을 크로스 교차 연결하는 수평바 및 수평바 상단에 구비된 슬라브거푸집을 갖는 트러스체를 하강시키고 고정하는 것으로 동일구성에 대해서는 동일부호 및 동일명칭을 그대로 적용한다.The present invention uses a vertical support and a horizontal support to lower and fix a horizontal bar that cross-connects a plurality of vertical beams and a truss body having a slab formwork provided on the top of the horizontal bar. apply as is.

도시된 바와 같이 본 발명은, 지중에 흙막이벽체와 띠장부를 구축하는 흙막이벽체구축단계와 구축된 흙막이벽체의 내측에 수직방향으로 복수개 수직빔을 박아 설치하는 수직빔설치단계를 포함하는 탑다운공법에 관한 것으로, 복수개 수직빔(1)을 크로스 교차 연결하는 수평바(2) 및 수평바 상단에 구비된 슬라브거푸집을 갖는 트러스체의 슬라브거푸집에 콘크리트를 타설하기 전, 수직빔(1)에 대해 하강시켜 고정하여 콘크리트를 타설하여 지하구축물의 층간슬라브를 구축하고 타설된 콘크리트가 양생되면 다시 수직빔(1)에 대해 수평바(2) 및 수평바 상단에 구비된 슬라브거푸집을 갖는 트러스체를 다시 하강시켜 연속적으로 지하구축물의 층간슬라부를 연속하여 구축한다.As shown, the present invention is a top-down construction method comprising a retaining wall construction step of constructing a retaining wall and a strip in the ground and a vertical beam installation step of driving a plurality of vertical beams in the vertical direction to the inside of the constructed retaining wall Regarding to, before pouring concrete into the slab formwork of the truss body having the horizontal bar (2) cross-connecting a plurality of vertical beams (1) and the slab formwork provided on the top of the horizontal bar, the vertical beam (1) The truss body with the horizontal bar (2) and the slab formwork provided on the top of the horizontal bar is rebuilt for the vertical beam (1) again when the poured concrete is cured and lowered and fixed to pour concrete. It descends and continuously builds the inter-floor slab of the underground structure.

즉, 복수개 수직빔(1)을 크로스 교차 연결하는 수평바(2) 및 수평바 상단에 구비된 슬라브거푸집을 갖는 트러스체의 슬라브거푸집에 콘크리트를 타설하기 전, 수직지지체연결단계(S1)에 의해 수직지지체(100)로 수평바(2)와 수직빔(1)을 연결하여 지지하고 수평지지체연결단계(S2)에 의해 수평지지체(200)로 수평바(2)를 흙막이벽체에 띠장부(3)를 밀착하여 고정 지지한다.That is, before pouring concrete into the slab formwork of the truss body having the horizontal bar 2 that cross-connects the plurality of vertical beams 1 and the slab formwork provided at the top of the horizontal bar, by the vertical support connection step (S1) By connecting the horizontal bar (2) and the vertical beam (1) to the vertical support (100) and supporting it, the horizontal bar (2) to the horizontal support (200) by the horizontal support connecting step (S2) is attached to the retaining wall (3) ) to be fixed and supported.

본 발명의 상기 수직지지체연결단계(S1)는, 복수개 수직빔을 크로스 교차하는 수평바와 수직빔을 수직지지체로 연결하는 것으로, 이를 위해 상기 수직지지체(100)는, 제1수평바연결브라켓(110)과 제2수평바연결브라켓(120), 제1수직빔상부연결브라켓(130), 제2수직빔상부연결브라켓(140), 제1수직빔하부연결브라켓(150), 제2수직빔하부연결브라켓(160), 제1수직유압자키(170) 및 제2수직유압자키(180)로 이루어진다.The vertical support connection step (S1) of the present invention is to connect a horizontal bar that crosses a plurality of vertical beams and a vertical beam as a vertical support, for this purpose, the vertical support 100 is a first horizontal bar connection bracket 110 ) and the second horizontal bar connection bracket 120, the first vertical beam upper connection bracket 130, the second vertical beam upper connection bracket 140, the first vertical beam lower connection bracket 150, the second vertical beam lower It consists of a connection bracket 160 , a first vertical hydraulic jack key 170 , and a second vertical hydraulic jack key 180 .

상기 제1수평바연결브라켓(110)은 수직빔(1)의 일측 외면에 끼워져 밀착되는 제1밀착홈(111)이 구비되고 수평바(2)의 하면과 상면이 고정되며 제1상부자키연결부(112)로 이루어지며, 상기 제2수평바연결브라켓(120)은 제1수평바연결브라켓(110)과 마주보도록 위치되어 수직빔(1)의 타측 외면에 끼워져 밀착되는 제2밀착홈(121)이 구비되고 수평바(2)의 하면과 상면이 고정되며 제2상부자키연결부(122)로 이루어지는 것으로, 상기 제1수평바연결브라켓(110) 및 제2수평바연결브라켓(120)의 상면은 수직빔(1)을 크로스 교차하여 위치되는 수평바(2)와 각각 볼팅 연결된다.The first horizontal bar connection bracket 110 is provided with a first adhesive groove 111 fitted to one side of the outer surface of the vertical beam 1 to be in close contact, the lower surface and the upper surface of the horizontal bar 2 are fixed, and a first upper Jockey connection part Consists of 112, the second horizontal bar connection bracket 120 is positioned to face the first horizontal bar connection bracket 110, and is fitted into the other outer surface of the vertical beam 1 and is in close contact with the second adhesive groove 121 ) is provided, the lower and upper surfaces of the horizontal bar 2 are fixed, and the second upper Jockey connection part 122 is provided, and the upper surface of the first horizontal bar connection bracket 110 and the second horizontal bar connection bracket 120 is provided. is respectively bolted to the horizontal bar (2) positioned to cross the vertical beam (1).

또한 상기 제1수직빔상부연결브라켓(130)은 제1수평바연결브라켓(110)의 하면과 상면이 밀착되어 볼팅고정되고 수직빔(1)의 일측 외면에 밀착되는 제1수직빔상부밀착면(131)이 내측에 구비되며 복수개 제1체결구멍(132)이 통공된 제1플랜지(133)로 이루어지고, 상기 제2수직빔상부연결브라켓(140)은 제1수직빔상부연결브라켓(130)과 마주보도록 위치되어 상기 제2수평바연결브라켓(120)의 하면과 상면이 밀착되어 볼팅고정되고 수직빔(1)의 타측 외면에 밀착되는 제2수직빔상부밀착면(141)이 내측에 구비되며 상기 제1체결구멍(132)과 대응되는 복수개 제2체결구멍(142)이 통공된 제2플랜지(143)로 구비된다.In addition, the first vertical beam upper connection bracket 130 is fixed by bolting the lower surface and upper surface of the first horizontal bar connection bracket 110 in close contact with the first vertical beam upper contact surface that is in close contact with the outer surface of one side of the vertical beam 1 . 131 is provided on the inside and consists of a first flange 133 having a plurality of first fastening holes 132 through it, and the second vertical beam upper connection bracket 140 is a first vertical beam upper connection bracket 130 . ), the lower surface and the upper surface of the second horizontal bar connection bracket 120 are in close contact with each other, and are fixed by bolting, and the second vertical beam upper adhesion surface 141 that is in close contact with the other outer surface of the vertical beam 1 is on the inside and a plurality of second fastening holes 142 corresponding to the first fastening holes 132 are provided as second flanges 143 through holes.

이와 같이 이루어진 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)은 상기 수직빔(1)의 일측 외면과 타측 외면에 각각 제1수직빔상부밀착면(131)과 제2수직빔상부밀착면(141)이 밀착된 상태에서 제1체결구멍(132)과 제2체결구멍(142)을 볼팅 체결하는 볼트 및 너트에 의해 수직빔(1)의 외면 일측과 타측에 서로 마주보도록 체결 고정된다.The first vertical beam upper connection bracket 130 and the second vertical beam upper connection bracket 140 made in this way are respectively formed on the outer surface of one side and the other side of the vertical beam 1, the first vertical beam upper connection surface 131 and In a state in which the second vertical beam upper attachment surface 141 is in close contact, the first and second fastening holes 132 and 142 are bolted to one side and the other side of the outer surface of the vertical beam 1 by bolts and nuts. They are fastened to face each other.

또한 상기 제1수직빔하부연결브라켓(150)은 제1수직빔상부연결브라켓(130)의 하부측에 위치되고 수직빔(1)의 일측 외면에 밀착되는 제1수직빔하부밀착면(151)이 내측에 구비되며 상기 제1상부자키연결부(112)와 수직선상으로 동일선상에 위치되는 제1하부자키연결부(152)로 이루어지며, 상기 제2수직빔하부연결브라켓(160)은 상기 제1수직빔하부연결브라켓(150)과 마주보도록 위치되고 수직빔(1)의 타측 외면에 밀착되는 제2수직빔하부밀착면(161)이 내측에 구비되며 상기 제2상부자키연결부(122)와 수직선상으로 동일선상에 위치되는 제2하부자키연결부(162)로 이루어진다.In addition, the first vertical beam lower connection bracket 150 is located on the lower side of the first vertical beam upper connection bracket 130 and is in close contact with the outer surface of one side of the vertical beam 1, the first vertical beam lower contact surface 151 It is provided inside this and consists of a first lower Jockey connecting part 152 positioned on the same line as the first upper Jockey connecting part 112 in a vertical line, and the second vertical beam lower connecting bracket 160 is the first A second vertical beam lower adhesion surface 161 that is positioned to face the vertical beam lower connection bracket 150 and is in close contact with the outer surface of the other side of the vertical beam 1 is provided inside and is perpendicular to the second upper Jockey connection part 122 It consists of a second lower jockey connection part 162 positioned on the same line in line.

상기 제1수직빔하부연결브라켓(150)과 제2수직빔하부연결브라켓(160)은 역시 상기 수직빔(1)의 외면 일측과 타측에 제1수직빔하부밀착면(151)과 제2수직빔하부밀착면(161)이 밀착된 상태에서 볼트 및 너트에 의해 수직빔(1)의 외면 일측과 타측에 서로 마주보도록 볼팅 체결 고정된다.The first vertical beam lower connection bracket 150 and the second vertical beam lower connection bracket 160 also have a first vertical beam lower contact surface 151 and a second vertical side on one side and the other side of the outer surface of the vertical beam 1 . In a state in which the lower beam adhesion surface 161 is in close contact, it is bolted and fixed to face each other on one side and the other side of the outer surface of the vertical beam 1 by a bolt and a nut.

또한 상기 제1수직유압자키(170)는 상기 제1상부자키연결부(112)에 상단이 연결되는 제1수직유압자키봉(171)이 구비되고 상기 제1수직유압자키봉(171)이 인출입되며 제1하부자키연결부(152)에 하단이 연결되고, 상기 제2수직유압자키(180)는 상기 제2상부자키연결부(122)에 상단이 연결되는 제2수직유압자키봉(181)이 구비되고 상기 제2수직유압자키봉(181)이 인출입되며 제2하부자키연결부(162)에 하단이 연결된다.In addition, the first vertical hydraulic jockey 170 is provided with a first vertical hydraulic jockey bar 171 whose upper end is connected to the first upper jockey connection part 112, and the first vertical hydraulic jockey bar 171 is withdrawn and inlet. and the lower end is connected to the first lower jockey connection part 152, and the second vertical hydraulic jockey key 180 is provided with a second vertical hydraulic jockey bar 181 whose upper end is connected to the second upper jockey key connection part 122 and the second vertical hydraulic jockey rod 181 is drawn in and out, and the lower end is connected to the second lower jockey connecting part 162 .

상기 제1수직유압자키봉(171)은 제1수직유압자키(170)의 작동에 의해 제1수직유압자키(170)측으로 인입되거나 제1수직유압자키(170)로부터 인출되고, 상기 제2수직유압자키봉(181)은 제2수직유압자키(180)의 작동에 의해 제2수직유압자키(180)측으로 인입되거나 제2수직유압자키(180)로부터 인출된다.The first vertical hydraulic press key rod 171 is drawn into the first vertical hydraulic press key 170 side by the operation of the first vertical hydraulic press key 170 or is drawn out from the first vertical hydraulic press key 170, and the second vertical The hydraulic jockey bar 181 is drawn into the second vertical hydraulic jockey 180 side by the operation of the second vertical hydraulic jockey 180 or is withdrawn from the second vertical hydraulic jockey 180 .

이와 같이 이루어진 수직지지체(100)에 의해 상기 수직지지체연결단계(S1)가 진행되는 것으로, 수직지지체(100)의 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)을 서로 마주보도록 수직빔(1)의 외면 일측과 타측에 서로 마주보도록 위치한 후 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)을 볼팅 연결하여 수평바(2)와 연결되는 제1수평바연결브라켓(110) 및 제2수평바연결브라켓(120)과 수직빔(1)을 연결하고 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)이 연결된 수직빔(1)의 하부측에 제1수직빔하부연결브라켓(150)과 제2수직빔하부연결브라켓(160)을 서로 마주보도록 위치한 후 제1수직빔하부연결브라켓(150)과 제2수직빔하부연결브라켓(160)을 볼팅 연결한 다음 제1수직빔상부연결브라켓(130)과 제1수직빔하부연결브라켓(150)을 제1수직유압자키(170)로 연결하여 지지하고 제2수직빔상부연결브라켓(140)과 제2수직빔하부연결브라켓(160)을 제2수직유압자키(180)로 연결하여 지지하도록 이루어진다.The vertical support connection step (S1) is performed by the vertical support 100 made in this way, and the first vertical beam upper connection bracket 130 and the second vertical beam upper connection bracket 140 of the vertical support 100 ) After positioning to face each other on one side and the other side of the outer surface of the vertical beam 1 to face each other, the first vertical beam upper connection bracket 130 and the second vertical beam upper connection bracket 140 are bolted to connect the horizontal bar (2) The first horizontal bar connection bracket 110 and the second horizontal bar connection bracket 120 and the vertical beam 1 connected to are connected, and the first vertical beam upper connection bracket 130 and the second vertical beam upper connection bracket ( 140) on the lower side of the connected vertical beam 1, the first vertical beam lower connection bracket 150 and the second vertical beam lower connection bracket 160 are positioned to face each other, and then the first vertical beam lower connection bracket 150 and the second vertical beam lower connection bracket 160 are connected by bolting, and then the first vertical beam upper connection bracket 130 and the first vertical beam lower connection bracket 150 are connected and supported by a first vertical hydraulic jack 170 and the second vertical beam upper connection bracket 140 and the second vertical beam lower connection bracket 160 are connected to and supported by the second vertical hydraulic jack key 180 .

본 발명의 수평지지체연결단계(S2)는, 수평바(2)와 볼팅고정된 수평지지체(200)의 수평지지몸체(210)로부터 수평지지가이드(240)를 인출하되 수평유압자키(220)에 의해 수평지지가이드(240)를 인출한 후 인출된 수평지지가이드(240)의 띠장연결대(242)와 볼팅고정된 띠장부(3)를 흙막이벽체에 밀착하여 연결 고정한다.In the horizontal support connection step (S2) of the present invention, the horizontal support guide 240 is drawn out from the horizontal support body 210 of the horizontal bar 2 and the bolted-fixed horizontal support body 200, but to the horizontal hydraulic jack 220 After the horizontal support guide 240 is drawn out by the method, the wale connecting rod 242 of the drawn out horizontal support guide 240 and the bolted wale unit 3 are connected and fixed in close contact with the retaining wall.

이를 위해 상기 수평지지체(200)는, 수평바(2)와 볼팅고정되는 상판(211)과 상기 상판(211)의 하부에 위치되는 하판(212)과 상기 상판(211)과 하판(212)을 연결지지하는 복수개 연결대(213)와 상판(211)과 하판(212) 사이에 구비되는 수용부(214)를 갖는 수평지지몸체(210)와, 상기 수용부(214)에 위치되고 일단이 상기 연결대(213)에 볼팅고정되는 수평유압자키(220)와, 상기 수평유압자키(220)로부터 인출입되는 수평유압자키봉(230)과, 상기 수평유압자키봉(230)의 끝단과 연결되는 수평가이드브라켓(241)이 일단에 구비되고 타단에는 흙막이벽체에 밀착되는 띠장부(3)와 볼팅고정되는 띠장연결대(242)가 구비되며 상기 수평유압자키봉(230)이 수평유압자키(220)측으로 인입될 때 수평지지몸체(210) 내측으로 슬라이딩 인입되고 수평유압자키봉(230)이 수평유압자키(220)로부터 인출될 때 상기 수평지지몸체(210)로부터 슬라이딩 인출되는 수평지지가이드(240)로 구비된다.To this end, the horizontal support 200 includes a horizontal bar 2 and an upper plate 211 fixed by bolting, a lower plate 212 positioned under the upper plate 211, and the upper plate 211 and the lower plate 212. A horizontal support body 210 having a plurality of connecting rods 213 for connecting and supporting, and a receiving portion 214 provided between the upper plate 211 and the lower plate 212, is positioned in the receiving portion 214 and has one end of the connecting rod A horizontal guide connected to the end of the horizontal hydraulic jack key 220 fixed to the bolt 213, the horizontal hydraulic jack key rod 230 drawn in and out from the horizontal hydraulic jack key 220, and the horizontal hydraulic jack key bar 230 A bracket 241 is provided at one end, and a wale joint 3 that is in close contact with the retaining wall and a wale joint 242 that is fixed by bolting are provided at the other end, and the horizontal hydraulic jockey rod 230 is drawn into the horizontal hydraulic jockey 220 side. When the horizontal support body 210 slides into the inside and when the horizontal hydraulic jack bar 230 is withdrawn from the horizontal hydraulic jack 220, it is provided with a horizontal support guide 240 that is slidably drawn out from the horizontal support body 210. do.

이와 같이 이루어진 본 발명은, 수직지지체(100)와 수평지지체(200)를 이용하여 수직빔(1)과 이 수직빔(1)에 크로스 교차 위치되는 수평바(2)를 견고하게 고정 지지한 후 슬라브거푸집에 콘크리트를 타설하여 지하구축물의 층간슬라브를 구축 시공하면 된다.The present invention made in this way uses the vertical support 100 and the horizontal support 200 to firmly support the vertical beam 1 and the horizontal bar 2 positioned to cross the vertical beam 1, and then Concrete is poured into the slab formwork to construct the inter-floor slab of the underground structure.

또한 층간슬라브를 구축한 후에는 복수개 수직빔(1)을 크로스 교차 연결하는 수평바(2) 및 수평바(2) 상단에 구비된 슬라브거푸집을 갖는 트러스체를 하강시킨 후 다시 고정하여 콘크리트를 타설하여 층간슬라브를 연속해서 구축 하면된다.In addition, after constructing the inter-floor slab, the horizontal bar (2) that cross-connects the plurality of vertical beams (1) and the truss body having the slab formwork provided on the top of the horizontal bar (2) are lowered and fixed again to pour concrete Then, the interlayer slabs can be built continuously.

이 때 본 발명의 수평지지체분리단계(S3)에 의해 수평지지체(200)의 수평지지가이드(240)의 띠장연결대(242)와 볼팅고정된 띠장부(3)를 흙막이벽체로부터 분리하고 수직지지체분리하강단계(S4)에 의해 수직지지체(100)를 수직빔(1)으로부터 분리하여 복수개 수직빔(1)을 크로스 교차 연결하는 수평바(2) 및 슬라브거푸집(미도시)을 하강시키면 된다.At this time, by the horizontal support separation step (S3) of the present invention, the wale connecting rod 242 of the horizontal support guide 240 of the horizontal support 200 and the bolted wale part 3 are separated from the retaining wall, and the vertical support is separated By separating the vertical support 100 from the vertical beam 1 by the descending step (S4), the horizontal bar 2 and the slab formwork (not shown) for cross-connecting the plurality of vertical beams 1 are lowered.

즉, 본 발명의 수평지지체분리단계(S3)는, 상기 수평유압자키(220)를 작동시켜 수평지지가이드(240)를 수평지지몸체(210)의 수용부(214)측으로 인입하여 띠장연결대(242)와 볼팅연결된 띠장부(3)를 흙막이벽체로부터 분리한다.That is, in the horizontal support separation step (S3) of the present invention, by operating the horizontal hydraulic jack 220, the horizontal support guide 240 is drawn into the receiving part 214 side of the horizontal support body 210, and the wale joint 242 ) and the bolt-connected band tenon (3) is separated from the retaining wall.

또한 상기 수직지지체분리하강단계(S4)는, 수직빔(1)의 외면 일측과 타측에 서로 마주보도록 밀착되어 볼팅고정된 수직지지체(100)의 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)의 볼트를 풀어 고정을 해제한 후 제1수직유압자키(170)와 제2수직유압자키(180)를 동시에 작동시켜 고정이 해제된 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)을 수직빔(1)의 길이방향을 따라 수직 하강시켜 수평바(2) 및 슬라브거푸집을 갖는 크로스체(미도시)를 하강시킨 다음, 고정이 해제된 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)을 다시 수직빔(1)에 밀착하여 볼팅고정한다.In addition, the vertical support separation and descending step (S4) is, the first vertical beam upper connection bracket 130 and the second of the vertical support body 100, which is bolted and closely adhered to face each other on one side and the other side of the outer surface of the vertical beam (1). After loosening the bolt of the upper vertical beam connection bracket 140 to release the fixing, the first vertical beam upper connection bracket that is released by simultaneously operating the first vertical hydraulic jack 170 and the second vertical hydraulic jack key 180 ( 130) and the second vertical beam upper connection bracket 140 are vertically lowered along the longitudinal direction of the vertical beam 1 to lower the horizontal bar 2 and the cross body (not shown) having the slab formwork, and then fixing The released first vertical beam upper connection bracket 130 and the second vertical beam upper connection bracket 140 are again in close contact with the vertical beam 1 and fixed by bolting.

이 때 제1수직유압자키(170)와 제2수직유압자키(180)의 작동에 의해 제1수직유압자키봉(171)과 제2수직유압자키봉(181)이 각각 제1수직유압자키(170)와 제2수직유압자키(180)측으로 인입되면서 상기 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)을 상기 제1수직빔하부연결브라켓(150)과 제2수직빔하부연결브라켓(160)측으로 하강시킴에 따라 수직빔(1)의 길이방향을 따라 수직 하강시켜 수평바(2) 및 슬라브거푸집을 갖는 크로스체(미도시)를 하강시킨다.At this time, by the operation of the first vertical hydraulic jockey 170 and the second vertical hydraulic jockey 180, the first vertical hydraulic jockey bar 171 and the second vertical hydraulic jockey bar 181 are respectively the first vertical hydraulic jockey ( 170) and the second vertical hydraulic jockey 180 side, the first vertical beam upper connection bracket 130 and the second vertical beam upper connection bracket 140 are connected to the first vertical beam lower connection bracket 150 and the second 2 As the vertical beam lowers to the lower connection bracket 160, it descends vertically along the longitudinal direction of the vertical beam 1 to lower the horizontal bar 2 and the cross body (not shown) having the slab formwork.

이와 같이 상기 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)을 상기 제1수직빔하부연결브라켓(150)과 제2수직빔하부연결브라켓(160)측으로 하강시킨 후 다시 고정이 해제된 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)을 다시 수직빔(1)에 밀착하여 볼팅고정하고, 상기 수평지지체(200)의 수평유압자키(220)를 작동시켜 수용지지몸체(210)의 내측으로 인입되어 수용부(214)에 수용된 수평지지가이드(240)를 수평지지몸체(210)로부터 슬라이딩 인출시켜 띠장연결대(242)와 볼팅고정된 띠장부(3)를 흙막이벽체측으로 강하게 밀어주어 띠장부(3)가 흙막이벽체에 수평유압자키(220)의 유압력에 의해 밀착고정되도록 한다.In this way, the first vertical beam upper connection bracket 130 and the second vertical beam upper connection bracket 140 are lowered toward the first vertical beam lower connection bracket 150 and the second vertical beam lower connection bracket 160 side. Then, the first vertical beam upper connection bracket 130 and the second vertical beam upper connection bracket 140 that are released again are fixed by bolting in close contact with the vertical beam 1 again, and the horizontal hydraulic pressure of the horizontal support body 200 By operating the jockey 220, the horizontal support guide 240, which is drawn into the receiving support body 210 and accommodated in the receiving part 214, is slidably drawn out from the horizontal support body 210 to fix the wale connecting rod 242 and bolting. By strongly pushing the strip (3) to the retaining wall, the strip (3) is closely and fixed to the retaining wall by the hydraulic force of the horizontal hydraulic jack (220).

이 때, 필요에 따라 흙막이벽체에 밀착 고정된 띠장부(3)를 별도의 고정수단(미도시)을 이용하여 추가 고정할 수 있다.At this time, if necessary, the wale part 3 fixed in close contact with the retaining wall may be additionally fixed using a separate fixing means (not shown).

또한, 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)의 하부측에 위치되고 수직빔(1)의 외면 일측과 타측에 각각 밀착되어 볼팅고정된 제1수직빔하부연결브라켓(150)과 제2수직빔하부연결브라켓(160)의 볼트를 풀어 고정을 해제한 후, 제1수직유압자키(170)와 제2수직유압자키(180)를 동시에 작동시켜 고정이 해제된 제1수직빔하부연결브라켓(150)과 제2수직빔하부연결브라켓(160)을 하강시켜 수직빔(1)에 볼팅고정하도록 구비된다.In addition, the first vertical beam upper connection bracket 130 and the second vertical beam upper connection bracket 140 are located on the lower side and are respectively in close contact with one side and the other side of the outer surface of the vertical beam 1, the first vertical beam fixed by bolting After loosening the bolts of the lower connection bracket 150 and the second vertical beam lower connection bracket 160, the first vertical hydraulic jack 170 and the second vertical hydraulic jack key 180 are simultaneously operated to make the fixation possible. The released first vertical beam lower connection bracket 150 and the second vertical beam lower connection bracket 160 are lowered and bolted to the vertical beam 1 is provided.

이 때 제1수직유압자키(170)와 제2수직유압자키(180)의 작동에 의해 제1수직빔하부연결브라켓(150)과 제2수직빔하부연결브라켓(160)의 하강되는 이유는, 상기 제1수직유압자키(170)와 제2수직유압자키(180)의 작동에 의해 제1수직유압자키봉(171)과 제2수직유압자키봉(181)이 각각 제1수직유압자키(170)와 제2수직유압자키(180)로부터 인출되는 바, 상기 제1수직유압자키봉(171)과 제2수직유압자키봉(181)이 연결된 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)이 수직빔(1)에 볼팅고정됨에 따라 상기 제1수직유압자키(170)와 제2수직유압자키(180)가 각각 제1수직유압자키봉(171)과 제2수직유압자키봉(181)으로부터 밀리면서 하강됨에 따라 상기 제1수직빔하부연결브라켓(150)과 제2수직빔하부연결브라켓(160)이 하강된다.At this time, the reason for the lowering of the first vertical beam lower connection bracket 150 and the second vertical beam lower connection bracket 160 by the operation of the first vertical hydraulic jack key 170 and the second vertical hydraulic jack key 180 is, By the operation of the first vertical hydraulic jockey 170 and the second vertical hydraulic jockey 180, the first vertical hydraulic jockey bar 171 and the second vertical hydraulic jockey bar 181 are respectively the first vertical hydraulic jockey 170 ) and a bar drawn out from the second vertical hydraulic jockey 180, the first vertical beam upper connection bracket 130 and the second to which the first vertical hydraulic jockey bar 171 and the second vertical hydraulic jockey bar 181 are connected. As the vertical beam upper connection bracket 140 is bolted to the vertical beam 1, the first vertical hydraulic jack 170 and the second vertical hydraulic jack 180 are respectively the first vertical hydraulic jack rod 171 and the second As the 2nd vertical hydraulic jockey bar 181 is pushed down while being pushed down, the first vertical beam lower connection bracket 150 and the second vertical beam lower connection bracket 160 are descended.

또한 상기 수직지지체분리하강단계(S4)에서 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)의 하강동작은, 수직빔(1)에 구비된 하강스토퍼(190)에 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)이 닿을 때까지 하강된다.In addition, the lowering operation of the first vertical beam upper connection bracket 130 and the second vertical beam upper connection bracket 140 in the vertical support separation and descending step (S4) is a descending stopper 190 provided on the vertical beam 1 The first vertical beam upper connection bracket 130 and the second vertical beam upper connection bracket 140 is lowered until it touches.

즉, 상기 수직빔(1)에는, 상기 제1수직유압자키(170)와 제2수직유압자키(180)에 의해 제1수평바연결브라켓(110)과 제2수평바연결브라켓(120)과 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)이 상기 수직빔(1)의 길이방향을 따라 수직 하강될 때 제1수평바연결브라켓(110)과 제2수평바연결브라켓(120)과 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)의 하강범위를 제한하는 하강스토퍼(190)가 구비된다.That is, in the vertical beam 1, the first horizontal bar connection bracket 110 and the second horizontal bar connection bracket 120 by the first vertical hydraulic jack key 170 and the second vertical hydraulic jack key 180 and When the first vertical beam upper connection bracket 130 and the second vertical beam upper connection bracket 140 are vertically lowered along the longitudinal direction of the vertical beam 1, the first horizontal bar connection bracket 110 and the second horizontal A lowering stopper 190 for limiting the lowering range of the bar connection bracket 120 , the first vertical beam upper connection bracket 130 , and the second vertical beam upper connection bracket 140 is provided.

이에 따라 수직지지체분리하강단계(S4)에서 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)의 하강될 때 하강스토퍼(190)에 수직지지체분리하강단계(S4)에서 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)의 하강이 닿을 때까지 하강시킨 후 고정하면 되는 것으로, 이와 같이 하강스토퍼(190)에 의해 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)의 하강범위가 제한되어 복수개 수직빔(1)을 크로스 교차 연결하는 수평바(2) 및 슬라브거푸집으로 이루어진 트러스체(미도시)의 하강범위가 동일하게 유지될 수 있으며, 상기 하강스토퍼(190)는 수직빔(1)의 수직 길이방향을 따라 일정간격으로 이격되어 복수개 구비된다.Accordingly, when the first vertical beam upper connection bracket 130 and the second vertical beam upper connection bracket 140 are lowered in the vertical support separation and descending step (S4), the vertical support separation step (S4) to the lowering stopper 190 The first vertical beam upper connection bracket 130 and the second vertical beam upper connection bracket 140 are lowered until they reach the descent and then fixed. The lowering range of the connecting bracket 130 and the second vertical beam upper connecting bracket 140 is limited, so that the horizontal bar 2 cross-connecting the plurality of vertical beams 1 cross-cross-connects the truss body (not shown) composed of the slab formwork. The descending range may be kept the same, and a plurality of the descending stoppers 190 are provided at regular intervals along the vertical longitudinal direction of the vertical beam 1 .

이상과 같이 본 발명에서는 구체적인 구성 요소 등과 같은 특정 사항들과 한정된 실시예 및 도면에 의해 설명되었으나 이는 본 발명의 보다 전반적인 이해를 돕기 위해서 제공된 것일 뿐, 본 발명은 상기의 실시예에 한정되는 것은 아니며 본 발명이 속하는 기술분야에서 통상적인 지식을 가진 자라면 이러한 기재로부터 다양한 수정 및 변형이 가능하다.As described above, in the present invention, specific matters such as specific components, etc., and limited embodiments and drawings have been described, but these are only provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. Various modifications and variations are possible from these descriptions by those of ordinary skill in the art to which the present invention pertains.

따라서, 본 발명의 사상은 설명된 실시예에 국한되어 정해져서는 아니 되며, 후술하는 청구범위뿐 아니라 이 청구범위와 균등하거나 등가적 변형이 있는 모든 것들은 본 발명 사상의 범주에 속한다고 할 것이다.Therefore, the spirit of the present invention should not be limited to the described embodiments, and not only the claims described below, but also all of the claims and equivalents or equivalent modifications will fall within the scope of the spirit of the present invention.

S1 : 수직지지체연결단계 S2 : 수평지지체연결단계
S3 : 수평지지체분리단계 S4 : 수직지지체분리하강단계
100 : 수직지지체 110 : 제1수평바연결브라켓
111 : 제1밀착홈 112 : 제1상부자키연결부
120 : 제2수평바연결브라켓 121 : 제2밀착홈
122 : 제2상부자키연결부 130 : 제1수직빔상부연결브라켓
131 : 제1수직빔상부밀착면 132 : 제1체결구멍
133 : 제1플랜지 140 : 제2수직빔상부연결브라켓
141 : 제2수직빔상부밀착면 142 : 제2체결구멍
143 : 제2플랜지 150 : 제1수직빔하부연결브라켓
151 : 제1수직빔하부밀착면 152 : 제1하부자키연결부
160 : 제2수직빔하부연결브라켓 161 : 제2수직빔하부밀착면
162 : 제2하부자키연결부 170 : 제1수직유압자키
171 : 제1수직유압자키봉 180 : 제2수직유압자키
181 : 제2수직유압자키봉 190 : 하강스토퍼
200 : 수평지지체 210 : 수평지지몸체
211 : 상판 212 : 하판
213 : 연결대 214 : 수용부
220 : 수평유압자키 230 : 수평유압자키봉
240 : 수평지지가이드 241 : 수평가이드브라켓
242 : 띠장연결대S1: vertical support connection step S2: horizontal support connection step
S3: Horizontal support separation step S4: Vertical support separation and descending step
100: vertical support 110: first horizontal bar connection bracket
111: first adhesive groove 112: first upper Jockey connection part
120: second horizontal bar connection bracket 121: second adhesive groove
122: second upper jockey connection part 130: first vertical beam upper connection bracket
131: first vertical beam upper adhesion surface 132: first fastening hole
133: first flange 140: second vertical beam upper connection bracket
141: second vertical beam upper contact surface 142: second fastening hole
143: second flange 150: first vertical beam lower connection bracket
151: first vertical beam lower adhesion surface 152: first lower jockey connection part
160: second vertical beam lower connection bracket 161: second vertical beam lower contact surface
162: second lower jockey connector 170: first vertical hydraulic jockey
171: first vertical hydraulic jockey bar 180: second vertical hydraulic jockey
181: second vertical hydraulic jockey bar 190: descending stopper
200: horizontal support 210: horizontal support body
211: upper plate 212: lower plate
213: connecting rod 214: receiving part
220: horizontal hydraulic jockey 230: horizontal hydraulic jockey bar
240: horizontal support guide 241: horizontal guide bracket
242: band connecting rod

Claims (6)

지중에 흙막이벽체와 띠장부를 구축하는 흙막이벽체구축단계와 구축된 흙막이벽체의 내측에 수직방향으로 복수개 수직빔을 박아 설치하는 수직빔설치단계를 포함하고, 복수개 수직빔을 크로스 교차 연결하는 수평바 및 수평바 상단에 구비된 슬라브거푸집을 갖는 트러스체의 슬라브거푸집에 콘크리트를 타설하기 전,
수직지지체연결단계(S1)에 의해 수평바와 수직빔을 연결하여 지지하고 수평지지체연결단계(S2)에 의해 수평바를 흙막이벽체에 밀착 연결하여 지지하되,
상기 수직지지체연결단계(S1)는 복수개 수직빔을 크로스 교차하는 수평바와 수직빔을 수직지지체(100)로 연결하도록 한 탑다운공법에 있어서,
상기 수직지지체(100)의 제1수직빔상부연결브라켓과 제2수직빔상부연결브라켓을 서로 마주보도록 수직빔의 외면 일측과 타측에 서로 마주보도록 위치한 후 제1수직빔상부연결브라켓과 제2수직빔상부연결브라켓을 볼팅 연결하여 수평바와 수직빔을 연결하고, 제1수직빔상부연결브라켓과 제2수직빔상부연결브라켓이 연결된 수직빔의 하부측에 제1수직빔하부연결브라켓과 제2수직빔하부연결브라켓을 서로 마주보도록 위치한 후 제1수직빔하부연결브라켓과 제2수직빔하부연결브라켓을 볼팅 연결한 다음 제1수직빔상부연결브라켓과 제1수직빔하부연결브라켓을 제1수직유압자키로 연결하여 지지하고, 제2수직빔상부연결브라켓과 제2수직빔하부연결브라켓을 제2수직유압자키로 연결하여 지지하도록 이루어지며,
상기 수평지지체연결단계(S2)는 수평바(2)와 볼팅고정된 수평지지체(200)의 수평지지몸체로부터 수평지지가이드를 인출하되 수평유압자키에 의해 수평지지가이드를 슬라이딩 인출하여 수평지지가이드의 띠장연결대와 볼팅고정된 띠장부가 흙막이벽체에 밀착 고정되도록 하되,
상기 수직지지체(100)는 상기 수직빔(1)의 일측 외면에 끼워져 밀착되는 제1밀착홈(111)이 구비되고 수평바(2)의 하면과 상면이 고정되며 제1상부자키연결부(112)를 갖는 제1수평바연결브라켓(110)과;
상기 제1수평바연결브라켓(110)과 마주보도록 위치되어 수직빔(1)의 타측 외면에 끼워져 밀착되는 제2밀착홈(121)이 구비되고 수평바(2)의 하면과 상면이 고정되며 제2상부자키연결부(122)를 갖는 제2수평바연결브라켓(120)과;
상기 제1수평바연결브라켓(110)의 하면과 상면이 밀착되어 볼팅고정되고 수직빔(1)의 일측 외면에 밀착되는 제1수직빔상부밀착면(131)이 내측에 구비되며 복수개 제1체결구멍(132)이 통공된 제1플랜지(133)를 갖는 제1수직빔상부연결브라켓(130)과;
상기 제1수직빔상부연결브라켓(130)과 마주보도록 위치되어 상기 제2수평바연결브라켓(120)의 하면과 상면이 밀착되어 볼팅고정되고 수직빔(1)의 타측 외면에 밀착되는 제2수직빔상부밀착면(141)이 내측에 구비되며 상기 제1체결구멍(132)과 대응되는 복수개 제2체결구멍(142)이 통공된 제2플랜지(143)를 갖는 제2수직빔상부연결브라켓(140)과;
상기 제1수직빔상부연결브라켓(130)의 하부측에 위치되고 수직빔(1)의 일측 외면에 밀착되는 제1수직빔하부밀착면(151)이 내측에 구비되며 상기 제1상부자키연결부(112)와 수직선상으로 동일선상에 위치되는 제1하부자키연결부(152)를 갖는 제1수직빔하부연결브라켓(150)과;
상기 제1수직빔하부연결브라켓(150)과 마주보도록 위치되고 수직빔(1)의 타측 외면에 밀착되는 제2수직빔하부밀착면(161)이 내측에 구비되며 상기 제2상부자키연결부(122)와 수직선상으로 동일선상에 위치되는 제2하부자키연결부(162)를 갖는 제2수직빔하부연결브라켓(160)과;
상기 제1상부자키연결부(112)에 상단이 연결되는 제1수직유압자키봉(171)이 구비되고 상기 제1수직유압자키봉(171)이 인출입되며 제1하부자키연결부(152)에 하단이 연결되는 제1수직유압자키(170)와;
상기 제2상부자키연결부(122)에 상단이 연결되는 제2수직유압자키봉(181)이 구비되고 상기 제2수직유압자키봉(181)이 인출입되며 제2하부자키연결부(162)에 하단이 연결되는 제2수직유압자키(180)로 이루어지도록 하고,
상기 수평지지체(200)는, 수평바(2)와 볼팅고정되는 상판(211)과 상기 상판(211)의 하부에 위치되는 하판(212)과 상기 상판(211)과 하판(212)을 연결지지하는 복수개 연결대(213)와 상판(211)과 하판(212) 사이에 구비되는 수용부(214)를 갖는 수평지지몸체(210)와;
상기 수용부(214)에 위치되고 일단이 상기 연결대(213)에 볼팅고정되는 수평유압자키(220)와;
상기 수평유압자키(220)로부터 인출입되는 수평유압자키봉(230)과;
상기 수평유압자키봉(230)의 끝단과 연결되는 수평가이드브라켓(241)이 일단에 구비되고 타단에는 흙막이벽체에 밀착되는 띠장부(3)가 볼팅고정되는 띠장연결대(242)가 구비되어 상기 수평유압자키봉(230)이 수평유압자키(220)측으로 인입될 때 수평지지몸체(210) 내측으로 슬라이딩 인입되고 수평유압자키봉(230)이 수평유압자키(220)로부터 인출될 때 상기 수평지지몸체(210)로부터 슬라이딩 인출되는 수평지지가이드(240)로 이루어지는 것을 특징으로 하는 승하강 이동식 트러스체를 이용한 탑다운공법.
A retaining wall construction step of constructing a retaining wall and a wale in the ground, and a vertical beam installation step of driving and installing a plurality of vertical beams in the vertical direction inside the constructed retaining wall A horizontal bar that cross-connects a plurality of vertical beams And before pouring concrete into the slab formwork of the truss body having the slab formwork provided at the top of the horizontal bar,
By connecting and supporting the horizontal bar and the vertical beam by the vertical support connecting step (S1), the horizontal bar is closely connected to the retaining wall and supported by the horizontal support connecting step (S2),
The vertical support connecting step (S1) is a top-down method in which a horizontal bar crossing a plurality of vertical beams and a vertical beam are connected to the vertical support 100,
After the first vertical beam upper connection bracket and the second vertical beam upper connection bracket of the vertical support 100 are positioned to face each other on one side and the other side of the outer surface of the vertical beam to face each other, the first vertical beam upper connection bracket and the second vertical The horizontal bar and the vertical beam are connected by bolting the upper beam connection bracket, and the first vertical beam lower connection bracket and the second vertical beam are connected to the lower side of the vertical beam to which the first vertical beam upper connection bracket and the second vertical beam upper connection bracket are connected. After positioning the lower beam connection brackets to face each other, the first vertical beam lower connection bracket and the second vertical beam lower connection bracket are connected by bolting, and then the first vertical beam upper connection bracket and the first vertical beam lower connection bracket are first hydraulically connected. It is connected and supported by a jockey, and the second vertical beam upper connection bracket and the second vertical beam lower connection bracket are connected and supported by a second vertical hydraulic jockey,
In the horizontal support connection step (S2), the horizontal support guide is drawn out from the horizontal support body of the horizontal bar 2 and the bolted-fixed horizontal support body 200, but the horizontal support guide is pulled out by sliding the horizontal support guide by the horizontal hydraulic jack key. Make sure that the wale joint and the bolted wale joint are closely fixed to the retaining wall,
The vertical support body 100 is provided with a first adhesion groove 111 fitted to one side of the outer surface of the vertical beam 1 to be in close contact, the lower surface and the upper surface of the horizontal bar 2 are fixed, and a first upper key connection part 112 . A first horizontal bar connection bracket 110 having a;
It is positioned to face the first horizontal bar connection bracket 110 and is provided with a second adhesive groove 121 that is fitted and closely adhered to the other side of the vertical beam 1, the lower surface and the upper surface of the horizontal bar 2 are fixed, and the first a second horizontal bar connection bracket 120 having two upper Jockey connection parts 122;
The lower and upper surfaces of the first horizontal bar connection bracket 110 are fixed by bolting, and a first vertical beam upper adhesion surface 131 that is in close contact with the outer surface of one side of the vertical beam 1 is provided inside and a plurality of first fastening a first vertical beam upper connection bracket 130 having a first flange 133 through which a hole 132 is formed;
The first vertical beam upper connection bracket 130 is positioned to face, the lower surface and the upper surface of the second horizontal bar connection bracket 120 are in close contact with each other to be bolted and the second vertical beam is in close contact with the outer surface of the other side of the vertical beam 1 . A second vertical beam upper connection bracket ( 140) and;
A first vertical beam lower adhesion surface 151 positioned on the lower side of the first vertical beam upper connection bracket 130 and in close contact with the outer surface of one side of the vertical beam 1 is provided inside, and the first upper Jockey connection part ( 112) and a first vertical beam lower connecting bracket 150 having a first lower jockey connecting portion 152 positioned on the same line in a vertical line;
A second vertical beam lower adhesion surface 161 that is positioned to face the first vertical beam lower connection bracket 150 and is in close contact with the other outer surface of the vertical beam 1 is provided inside, and the second upper Jockey connection part 122 ) and a second vertical beam lower connecting bracket 160 having a second lower jockey connecting portion 162 positioned on the same line in a vertical line;
A first vertical hydraulic jockey bar 171 having an upper end connected to the first upper jockey connection part 112 is provided, and the first vertical hydraulic jockey bar 171 is drawn in and out, and the lower end is connected to the first lower Jockey key connection part 152. And the first vertical hydraulic jockey 170 is connected;
A second vertical hydraulic jockey bar 181 having an upper end connected to the second upper jockey connection part 122 is provided, and the second vertical hydraulic jockey bar 181 is drawn in and out, and the lower end is connected to the second lower Jockey key connection part 162 . To be made of a second vertical hydraulic jockey 180 that is connected,
The horizontal support body 200 connects the horizontal bar 2 and the upper plate 211 fixed by bolting, the lower plate 212 positioned under the upper plate 211, and the upper plate 211 and the lower plate 212 to each other. a horizontal support body 210 having a plurality of connecting rods 213 and a receiving portion 214 provided between the upper plate 211 and the lower plate 212;
a horizontal hydraulic jack key 220 positioned in the receiving portion 214 and having one end bolted to the connecting rod 213;
a horizontal hydraulic jockey bar 230 that is drawn out from the horizontal hydraulic jockey 220;
A horizontal guide bracket 241 connected to the end of the horizontal hydraulic jockey rod 230 is provided at one end, and a belt rod connecting rod 242 to which the belt rod part 3 that is in close contact with the retaining wall is bolted is provided at the other end. When the hydraulic jockey bar 230 is retracted toward the horizontal hydraulic jockey 220 side, the horizontal support body 210 is slid inward and the horizontal hydraulic jockey bar 230 is withdrawn from the horizontal hydraulic jockey 220 when the horizontal support body is drawn in. Top-down construction method using an elevating movable truss body, characterized in that it consists of a horizontal support guide 240 that is slidably drawn out from (210).
 제1항에 있어서,
상기 수직지지체연결단계(S1) 및 수평지지체연결단계(S2) 후 슬라브거푸집에 콘크리트를 타설하여 양생한 다음, 수평지지체분리단계(S3)에 의해 수평지지체(200)를 흙막이벽체로부터 분리하고 수직지지체분리하강단계(S4)에 의해 수직지지체(100)를 수직빔(1)으로부터 분리하여 복수개 수직빔(1)을 크로스 교차 연결하는 수평바 및 슬라브거푸집을 하강시키되,
상기 수평지지체분리단계(S3)는,
수평유압자키를 작동시켜 수평지지가이드를 수평지지몸체측으로 인입하는 것에 의해 수평지지가이드의 띠장연결대와 연결된 띠장부를 흙막이벽체로부터 분리하도록 이루어지고,
상기 수직지지체분리하강단계(S4)는,
볼팅고정된 수직지지체의 제1수직빔상부연결브라켓과 제2수직빔상부연결브라켓의 볼트를 풀어 고정을 해제한 후 제1수직유압자키와 제2수직유압자키를 동시에 작동시켜 고정이 해제된 제1수직빔상부연결브라켓과 제2수직빔상부연결브라켓을 하강시켜 수평바 및 슬라브거푸집을 하강시킨 다음, 고정이 해제된 제1수직빔상부연결브라켓과 제2수직빔상부연결브라켓을 다시 수직빔에 밀착하여 볼팅고정한 후, 볼팅고정된 제1수직빔하부연결브라켓과 제2수직빔하부연결브라켓의 볼트를 풀어 고정을 해제하고 제1수직유압자키와 제2수직유압자키를 동시에 작동시켜 고정이 해제된 제1수직빔하부연결브라켓과 제2수직빔하부연결브라켓을 하강시켜 수직빔에 볼팅고정하도록 이루어지는 것을 특징으로 하는 승하강 이동식 트러스체를 이용한 탑다운공법.
According to claim 1,
After the vertical support connection step (S1) and the horizontal support connection step (S2), concrete is poured on the slab formwork and cured, and then the horizontal support 200 is separated from the retaining wall by the horizontal support separation step (S3), and the vertical support Separating the vertical support 100 from the vertical beam 1 by the separation and descending step (S4) to lower the horizontal bar and the slab formwork that cross-connect the plurality of vertical beams 1,
The horizontal support separation step (S3),
By operating the horizontal hydraulic jack and drawing in the horizontal support guide toward the horizontal support body, it is made to separate the belt rod connected to the belt rod connecting rod of the horizontal support guide from the retaining wall,
The vertical support separation and descending step (S4) is,
After loosening the bolts of the first vertical beam upper connection bracket and the second vertical beam upper connection bracket of the bolted-fixed vertical support, the first vertical hydraulic jack key and the second vertical hydraulic jack key are simultaneously operated to release the fixation. Lower the 1st vertical beam upper connection bracket and the 2nd vertical beam upper connection bracket to lower the horizontal bar and the slab formwork, and then attach the released first vertical beam upper connection bracket and the second vertical beam upper connection bracket to the vertical beam again. After fixing the bolts in close contact with the bolts, loosen the bolts of the bolted first vertical beam lower connection bracket and the second vertical beam lower connection bracket to release the fixing, and simultaneously operate the first vertical hydraulic jack key and the second vertical hydraulic jack key to make the fixation possible. A top-down construction method using an elevating movable truss body, characterized in that the released first vertical beam lower connection bracket and the second vertical beam lower connection bracket are lowered to be bolted to the vertical beam.
 제2항에 있어서,
상기 수직지지체분리하강단계(S4)에서 제1수직빔상부연결브라켓과 제2수직빔상부연결브라켓의 하강동작은,
수직빔에 구비된 하강스토퍼에 제1수직빔상부연결브라켓과 제2수직빔상부연결브라켓이 닿을 때까지 하강되도록 이루어지는 것을 특징으로 하는 승하강 이동식 트러스체를 이용한 탑다운공법.
3. The method of claim 2,
The lowering operation of the first vertical beam upper connection bracket and the second vertical beam upper connection bracket in the vertical support separation and descending step (S4) is,
A top-down method using an elevating movable truss body, characterized in that it is descended until the first vertical beam upper connection bracket and the second vertical beam upper connection bracket touch the lowering stopper provided in the vertical beam.
 삭제delete 제1항에 있어서,
상기 수직빔(1)에는,
상기 제1수직유압자키(170)와 제2수직유압자키(180)에 의해 제1수평바연결브라켓(110)과 제2수평바연결브라켓(120)과 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)이 상기 수직빔(1)의 길이방향을 따라 수직 하강될 때 제1수평바연결브라켓(110)과 제2수평바연결브라켓(120)과 제1수직빔상부연결브라켓(130)과 제2수직빔상부연결브라켓(140)의 하강범위를 제한하는 하강스토퍼(190)가 구비되는 것을 특징으로 하는 승하강 이동식 트러스체를 이용한 탑다운공법.According to claim 1,
In the vertical beam (1),
A first horizontal bar connection bracket 110, a second horizontal bar connection bracket 120, and a first vertical beam upper connection bracket 130 by the first vertical hydraulic jack key 170 and the second vertical hydraulic jack key 180 And when the second vertical beam upper connection bracket 140 is vertically lowered along the longitudinal direction of the vertical beam 1, the first horizontal bar connection bracket 110 and the second horizontal bar connection bracket 120 and the first vertical A top-down method using a lifting and lowering movable truss body, characterized in that a descending stopper 190 for limiting the descending range of the upper beam connecting bracket 130 and the second vertical beam upper connecting bracket 140 is provided. 삭제delete
KR1020210020876A 2021-02-17 2021-02-17 Top-down construction method using an elevating movable truss body Active KR102360372B1 (en)

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KR102484762B1 (en) * 2022-04-22 2023-02-06 (주)에스앤피이엔지 Improvement down-up equipment of construction of the underground structure
KR102504211B1 (en) * 2022-04-22 2023-02-28 (주)에스앤피이엔지 Improvement down-up method of construction of the underground structure
KR20240071644A (en) * 2022-11-16 2024-05-23 (주)에스앤피이엔씨 multistage structured hydraulic jack supporting apparatus and top-down method of construction using the same

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JP2002194759A (en) * 2000-12-26 2002-07-10 Shimizu Corp Underground structure construction method
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Publication number Priority date Publication date Assignee Title
KR102484762B1 (en) * 2022-04-22 2023-02-06 (주)에스앤피이엔지 Improvement down-up equipment of construction of the underground structure
KR102504211B1 (en) * 2022-04-22 2023-02-28 (주)에스앤피이엔지 Improvement down-up method of construction of the underground structure
KR20240071644A (en) * 2022-11-16 2024-05-23 (주)에스앤피이엔씨 multistage structured hydraulic jack supporting apparatus and top-down method of construction using the same
KR102738917B1 (en) * 2022-11-16 2024-12-06 (주)에스앤피이엔씨 multistage structured hydraulic jack supporting apparatus

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