KR20240071644A - multistage structured hydraulic jack supporting apparatus and top-down method of construction using the same - Google Patents
multistage structured hydraulic jack supporting apparatus and top-down method of construction using the same Download PDFInfo
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- KR20240071644A KR20240071644A KR1020220153384A KR20220153384A KR20240071644A KR 20240071644 A KR20240071644 A KR 20240071644A KR 1020220153384 A KR1020220153384 A KR 1020220153384A KR 20220153384 A KR20220153384 A KR 20220153384A KR 20240071644 A KR20240071644 A KR 20240071644A
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- hydraulic jack
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- support bar
- support body
- lowering
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F2700/00—Lifting apparatus
- B66F2700/05—Hydraulic jacks
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/11—Height being adjustable
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- 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
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- 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)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
Description
본 발명은 다단식 유압잭 지지장치 및 이를 이용한 탑다운 공법에 관한 것으로, 더욱 상세하게는 다단으로 서포트체를 복수개 적층하여 하강유압잭을 지지하도록 하고, 복수개 적층된 서포트체를 하나씩 분리하면서 하강유압잭을 동작시켜 순차적으로 수평지지바를 하강시키며, 복수개 적층된 서포트체가 모두 분리되면, 다시 복수개 서포트체를 다단으로 적층하여 하강유압잭을 지지하도록 하는 동작을 반복하여 탑다운 공법에 의해 지하 구조물을 신축하도록 함에 따라, 간단한 구성에 의한 시공비용의 절감은 물론 시공시간을 크게 단축할 수 있으며, 유압잭실린더의 인출길이가 긴 하강유압잭을 이용하지 않음에 따라 비용절감 효과를 얻을 수 있는 다단식 유압잭 지지장치 및 이를 이용한 탑다운 공법에 관한 것이다.The present invention relates to a multi-stage hydraulic jack support device and a top-down method using the same. More specifically, a plurality of support bodies are stacked in multiple stages to support a lowering hydraulic jack, and the lowering hydraulic jack is operated while separating the plurality of stacked support bodies one by one. The horizontal support bars are sequentially lowered, and when all of the plurality of stacked support bodies are separated, the operation of stacking the plurality of support bodies in multiple stages to support the lowering hydraulic jack is repeated, allowing the underground structure to be newly built using the top-down method. A multi-stage hydraulic jack support device and a top-down construction method using the same, which can not only reduce construction costs by configuration, but also significantly shorten construction time, and achieve cost savings by not using a lowering hydraulic jack with a long pull-out length of the hydraulic jack cylinder. It's about.
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 construction method is a construction method that forms an underground structure by descending from the ground to the basement in order to minimize the impact on the surroundings in dense areas such as urban construction. It usually involves installing a form for the slab beam on the upper floor. After pouring concrete into the form and curing it, when the curing of the upper slab beam is completed, the form 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 form is being reused to form the lower slab beam, and the top-down method is used to construct an underground structure by repeatedly lowering the form 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 construction method using a central steel column, registered patent number 10-2123543, has been developed. This is a top-down construction method in which the structure is built top-down when constructing an underground structure, and an earth retaining wall is built underground. A retaining wall construction step, a column construction step in which steel columns are driven vertically from the ground into the internal space surrounded by the retaining wall, and excavation work is performed by excavating the inside of the retaining wall to a predetermined depth. It consists of a wale installation stage in which strips are installed horizontally on the side of the earth retaining wall exposed by the wall, and a horizontal beam installation stage in which horizontal beams are installed connecting the strips facing each other and the steel columns between them. The wale installation stage and the horizontal beam are installed. The installation stage is repeated, and walls, floors, and foundations are constructed according to the design in the interior space.
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 conventional technology reduces material costs and simplifies the process by installing steel columns manufactured in a factory without constructing a central column, thereby saving construction time. However, as the steel columns and horizontal beams are constructed through welding work, There is a problem in that construction time is delayed and construction costs increase.
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 for example, a top-down method of forming an underground structure using a truss-type support, published in Patent Publication No. 10-2020-0032316, has been proposed.
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 prior patent publication No. 10-2020-0032316, in the method of forming a top-down underground structure, the steps of installing a pillar member in the ground, the step of coupling a bracket member to the pillar member, the top of the bracket member in the transverse direction It consists of installing a truss-type support and fixing a square member on top of the truss-type support. By using the truss-type support, the construction time is shortened.
그러나, 종래 기술의 경우 기둥부재에 연결된 브라켓부재에 트러스형 지지체를 복수개 연결 시공하는 과정에서 브라켓부재를 용접 또는 볼트결합에 의해 연결 시공하거나 트러스형 지지체를 용접 또는 볼트결합에 의해 연결 시공함에 따라 브라켓부재와 기둥부재 및 트러스형 지지체가 완전히 고정되어 있기 때문에 기둥부재와 기둥부재를 연결 시공하는 과정에서 수평이나 거리가 맞지 않을 경우 전체적으로 재시공해야 하는 문제점이 있다.However, in the case of the prior art, in the process of connecting a plurality of truss-type supports to a bracket member connected to a column member, the bracket members are connected by welding or bolting, or the truss-type supports are connected by welding or bolting, thereby forming a bracket. Since the member, column member, and truss-type support are completely fixed, there is a problem that the entire structure must be rebuilt if the level or distance does not match during the construction process of connecting the column member and the column member.
또한, 기둥부재와 연결되는 브라켓부재 및 브라켓부재에 연결되는 트러스형 지지체가 용접 또는 볼트에 의해서만 연결 시공됨에 따라 타설되는 콘크리트의 하중강도를 견고하게 지지하기에 역부족인 문제점이 있다.In addition, since the bracket member connected to the column member and the truss-type support connected to the bracket member are connected only by welding or bolting, there is a problem in that it is insufficient to firmly support the load strength of the poured concrete.
본 발명은 흙막이벽체 내측에 수직방향으로 설치된 수직지지바에 유압잭지지바와, 수직지지바의 하단에 서포트체지지체를 서로 이격되도록 각각 설치한 후, 유압잭지지바의 하단에 승하강유압잭을 설치 고정하고, 승하강유압잭과 서포트체지지체 사이에 복수개 서포트체를 다단으로 적층하여 승하강유압잭을 지지하여, 승하강유압잭의 실린더의 인출동작에 의해 트러스체를 갖는 수평지지바가 하강되도록 하되, 승하강유압잭의 실린더의 인출동작에 따라 복수개 다단으로 적층된 서포트체를 하나씩 분리하면서 승하강유압잭의 실린더가 인출동작을 반복하도록 하여 원하는 위치에 트러스체를 갖는 수평지지바를 하강시키도록 하며, 복수개 다단으로 적층된 서포트체를 완전히 분리되면, 다시 서포트체지지체를 수직지지바로부터 하강시켜 고정한 후 복수개 서포트체를 다단으로 다시 적층하여 승하강유압잭의 실린더가 지지되도록 하여 계속적으로 트러스체를 갖는 수평지지바를 하강시키면서, 탑다운 공법에 의해 지하 구조물을 신축하도록 함에 따라, 간단한 구성에 의한 시공비용의 절감은 물론 시공시간을 크게 단축할 수 있으며, 유압잭실린더의 인출길이가 긴 하강유압잭을 이용하지 않음에 따라 비용절감 효과를 얻을 수 있는 다단식 유압잭 지지장치 및 이를 이용한 탑다운 공법을 제공함에 그 목적이 있다.In the present invention, a hydraulic jack support bar and a support body are installed at the bottom of the vertical support bar to be spaced apart from each other on a vertical support bar installed vertically inside the retaining wall, and then a raising and lowering hydraulic jack is installed and fixed at the bottom of the hydraulic jack support bar, A plurality of support bodies are stacked in multiple stages between the lifting and lowering hydraulic jack and the support body to support the lifting and lowering hydraulic jack, so that the horizontal support bar with the truss body is lowered by the withdrawal action of the cylinder of the lifting and lowering hydraulic jack. According to the pulling operation, the support bodies stacked in multiple stages are separated one by one, and the cylinder of the lifting and lowering hydraulic jack repeats the drawing operation to lower the horizontal support bar with the truss body to the desired position. When the support body is completely separated, the support body is lowered from the vertical support bar again and fixed, and then a plurality of support bodies are stacked again in multiple stages so that the cylinder of the lifting and lowering hydraulic jack is supported, and the horizontal support bar having the truss body is continuously lowered, while the top down. By constructing an underground structure using a construction method, not only can the construction cost be reduced through a simple configuration, but the construction time can be greatly shortened, and a cost saving effect can be achieved by not using a lowering hydraulic jack, which has a long pull-out length of the hydraulic jack cylinder. The purpose is to provide a multi-stage hydraulic jack support device and a top-down construction method using it.
상기 목적을 달성하기 위한 수단으로 본 발명인 다단식 유압잭 지지장치는, 슬라브거푸집체가 시공되는 수평지지바의 하단에 볼팅 고정되고 지중의 흙막이벽체에 수직방향으로 하단을 지면에 박아 설치되는 수직지지바에 위치되는 승하강유압잭지지체와; 상기 승하강유압잭지지체의 하부측에 위치되도록 상기 수직지지바에 볼팅고정되는 서포트체지지체와; 상기 승하강유압잭지지체의 하단에 상단이 볼팅 고정되고 인출입되는 유압잭실린더를 갖는 승하강유압잭과; 상기 서포트체지지체의 상단으로부터 수직방향으로 복수개 다단적층되어 상기 승하강유압잭의 유압잭실린더를 받쳐 지지하는 복수개 서포트체로 구비된다.As a means to achieve the above object, the multi-stage hydraulic jack support device of the present invention is bolted to the lower end of the horizontal support bar on which the slab formwork is constructed and is located on a vertical support bar installed by driving the lower end into the ground in the vertical direction of the earth retaining wall. A lifting and lowering hydraulic jack support body; a support body supported by bolting to the vertical support bar so as to be located on a lower side of the lifting and lowering hydraulic jack support body; A lifting and lowering hydraulic jack having an upper end bolted to the lower end of the lifting and lowering hydraulic jack support and a hydraulic jack cylinder that is withdrawn and retracted; The support body is provided with a plurality of support bodies stacked in a vertical direction from the top of the support body to support the hydraulic jack cylinder of the raising and lowering hydraulic jack.
나아가 상기 승하강유압지지체는, 상기 수평지지바의 하단에 볼팅고정되되 상기 수평지지바에 대해 크로스 위치되어 고정되는 제1수평지지바브라켓과; 상기 제1수평지지바브라켓의 하단에 볼팅고정되되 상기 제1수평지지바브라켓과 크로스 위치되도록 고정되는 제2수평지지바브라켓과; 상기 제2수평지지바브라켓의 하단에 밀착되도록 상기 수직지지바에 볼팅 고정되는 제1기둥스토퍼로 구비되고, 상기 서포트체지지체는, 상기 승하강유압지지체의 하부측에 위치되는 서포트체지지바와; 상기 서포트체지지바를 수직지지바에 볼팅고정하는 기둥하부브라켓으로 구비된다.Furthermore, the lifting and lowering hydraulic support member includes a first horizontal support bar bracket that is bolted to the lower end of the horizontal support bar and is positioned and fixed crosswise with respect to the horizontal support bar; a second horizontal support bar bracket bolted to the lower end of the first horizontal support bar bracket and fixed to a cross position with the first horizontal support bar bracket; It is provided with a first pillar stopper bolted to the vertical support bar so as to be in close contact with the lower end of the second horizontal support bar bracket, and the support body support body includes a support body support bar located on the lower side of the lifting and lowering hydraulic support body; It is provided with a column lower bracket that bolts the support bar to the vertical support bar.
나아가, 상기 서포트체지지체의 상단에 수직방향으로 복수개 다단 적층되는 복수개 서포트체는 각각, 서로에 대해 대칭되게 위치되어 볼팅 고정되는 제1지지구와 제2지지구로 구비되고, 상기 제1지지구는, 제1상부플랜지와; 상기 제1상부플랜지의 하부측에 위치되는 제1하부플랜지와; 상기 제1상부플랜지와 제1하부플랜지를 연결하고 내측에 상기 유압잭실린더가 안착지지되는 제1실린더지지부와; 상기 제1지지구의 외측 상하길이방향으로 돌출되는 제1체결부로 이루어지며, 상기 제2지지구는, 상기 제1상부플랜지와 대칭되게 위치되는 제2상부플랜지와; 상기 제1하부플랜지와 대칭되게 위치되는 제2하부플랜지와; 상기 제2상부플랜지와 제2하부플랜지를 연결하고 내측에 상기 유압잭실린더가 안착지지되는 제2실린더지지부와; 상기 제1체결부와 마주보도록 상기 제2지지구의 외측 상하길이방향으로 돌출되는 제2체결부로 이루어진다.Furthermore, a plurality of support bodies stacked in a plurality of stages in a vertical direction on the top of the support body support body are each provided with a first support member and a second support member that are positioned symmetrically with respect to each other and fixed by bolting, and the first support member is, 1 upper flange; a first lower flange located on a lower side of the first upper flange; a first cylinder support portion that connects the first upper flange and the first lower flange and on which the hydraulic jack cylinder is seated and supported; It consists of a first fastening part that protrudes in the vertical direction outside the first support member, and the second support member includes a second upper flange positioned symmetrically with the first upper flange; a second lower flange positioned symmetrically to the first lower flange; a second cylinder support portion that connects the second upper flange and the second lower flange and on which the hydraulic jack cylinder is seated and supported; It consists of a second fastening part that protrudes in the vertical and longitudinal direction on the outside of the second support district to face the first fastening part.
또한 본 발명인 다단식 유압잭 지지장치를 이용한 탑다운 공법은, 지중의 흙막이벽체에 내측에 위치되고 하단이 지면에 박아져 수직방방향으로 설치된 수직지지바에 위치되고, 슬라브거푸집체가 시공되는 수평지지바의 하단과 상기 수직지지바를 연결고정하는 승하강유압잭지지체를 시공하는 제1공정; 제1공정에 의해 시공된 승하강유압잭지지체의 하부측에 위치되도록 상기 수직지지바에 서포트체지지체를 볼팅 고정하는 제2공정; 제2공정 후, 상기 승하강유압잭지지체의 하단에 승하강유압잭의 상단을 볼팅고정하여 승하강유압잭을 설치하는 제3공정; 제3공정 후, 상기 서포트지지체의 상단으로부터 복수개 서포트체를 다단으로 수직적층하되, 최상단에 위치하는 서포트체가 상기 승하강유압잭의 유압잭실린더에 안착되도록 적층하는 제4공정과; 제4공정 후, 상기 복수개 서포트체를 하나씩 분리하면서 상기 슬라브거푸집체가 시공된 수평지지바를 순차적으로 하강시키는 제5공정으로 이루어진다.In addition, the top-down method using the multi-stage hydraulic jack support device of the present invention is located on the inside of an underground retaining wall and the lower end is placed on a vertical support bar driven into the ground and installed in the vertical direction, and the bottom of the horizontal support bar on which the slab formwork is constructed A first process of constructing a lifting and lowering hydraulic jack support for connecting and fixing the vertical support bar; A second process of bolting and fixing the support body to the vertical support bar so that it is located on the lower side of the lifting and lowering hydraulic jack support constructed by the first process; After the second process, a third process of installing the lowering hydraulic jack by bolting the upper end of the lowering hydraulic jack to the lower end of the lowering hydraulic jack support body; After the third process, a fourth process of stacking a plurality of support bodies vertically in multiple stages from the top of the support support body so that the support body located at the top is seated on the hydraulic jack cylinder of the raising and lowering hydraulic jack; After the fourth process, a fifth process is performed in which the plurality of support bodies are separated one by one and the horizontal support bars on which the slab formwork is constructed are sequentially lowered.
나아가 상기 제5공정은, 제4공정 후, 흙막이벽체에 상기 수평지지바를 수평지지바고정부로 고정한 다음, 승하강유압잭의 유압잭실린더를 승강시켜 유압잭실린더가 복수개 적층된 서포트체 중 최상단에 위치된 서포트체로부터 이격되도록 하여 유압잭실린더의 지지됨을 해제하는 유압잭실린더지지해제공정; 상기 유압잭실린더지지해제공정 후, 유압잭실린더로부터 이격된 서포트체를 다단으로 적층된 복수개 서포트체로부터 분리하는 최상단 서포트체분리공정과; 최상단 서포트체분리공정 후, 승강된 유압잭실린더를 승하강유압잭으로부터 인출하여 복수개 적층된 서포트체의 상단에 유압잭실린더가 안착되어 지지되도록 하는 유압잭실린더인출공정; 유압잭실린더인출공정 후, 상기 흙막이벽체에 수평지지바고정부로 고정된 수평지지바를 흙막이벽체로부터 고정을 해제하고, 상기 승하강유압잭을 하강시켜 수평지지바를 하강시키는 수평지지바하강공정으로 이루어지고, 상기 제5공정 후, 다단으로 적층된 복수개 서포트체가 모두 분리되면, 상기 흙막이벽체에 수평지지바를 고정한 다음, 상기 서포트체지지체의 볼팅을 해제한 후, 서포트체지지체를 다시 수직지지바로부터 하강 위치하여 상기 승하강유압잭지지체와 이격되도록 한 다음, 다시 서포트체지지체를 볼팅하여 수직지지바에 고정하고, 상기 제4공정 및 제5공정을 반복하여 수평지지바를 하강시키도록 이루어진다.Furthermore, in the fifth process, after the fourth process, the horizontal support bar is fixed to the earth retaining wall with a horizontal support bar fixing part, and then the hydraulic jack cylinder of the raising and lowering hydraulic jack is raised and lowered to provide a support located at the uppermost level among the support bodies on which a plurality of hydraulic jack cylinders are stacked. A hydraulic jack cylinder support release process of releasing the support of the hydraulic jack cylinder by moving it away from the body; After the hydraulic jack cylinder support release process, an uppermost support body separation process of separating the support body spaced from the hydraulic jack cylinder from a plurality of support bodies stacked in multiple stages; After the uppermost support body separation process, a hydraulic jack cylinder withdrawal process in which the lifted hydraulic jack cylinder is withdrawn from the raising and lowering hydraulic jack so that the hydraulic jack cylinder is seated and supported on the top of the plurality of stacked support bodies; After the hydraulic jack cylinder withdrawal process, the horizontal support bar fixed to the retaining wall with the horizontal support bar fixing part is unfastened from the retaining wall, and the horizontal support bar lowering process is performed to lower the horizontal support bar by lowering the raising and lowering hydraulic jack, After the fifth process, when all the plurality of support bodies stacked in multiple stages are separated, a horizontal support bar is fixed to the earth retaining wall, the bolting of the support body is released, and the support body is lowered from the vertical support bar again. After being spaced apart from the lifting and lowering hydraulic jack support, the support body is bolted again to fix it to the vertical support bar, and the fourth and fifth processes are repeated to lower the horizontal support bar.
본 발명은 지하구축믈의 슬라브를 시공하기 위해 거푸집슬라브가 설치된 수평지지바를 일정한 간격으로 순차적으로 하강함에 있어서, 간단한 구성인 승하강유압잭과 승하강유압잭을 지지하는 서포트지지체만으로 수평지지바를 지지하여 하강시킬 수 있기 때문에, 간단한 구성에 의해 지하구축물의 시공에 대한 비용절감은 물론 시공시간을 크게 단축할 수 있으며, 복수개 서포트체를 다단으로 적층하여 승하강유압잭의 승하강실린더를 지지하도록 함에 따라, 승하강유압잭으로부터 하강인출되는 유압잭실린더의 인출길이에 관계없이 지하구축물 시공에 따른 수평지지바의 탑다운이 가능하도록 하여, 작업편의성은 물론 작업효율성을 크게 향상시키고, 비용절감 효과를 얻을 수 있으며, 간단하게 승하강유압잭과 다단으로 적층되는 서포트체에 의해 수평지지바가 지지되고 하강됨에 따라, 지하층에 대한 슬라브 구축시에 각 층의 슬라브 구축시공작업이 견고하게 용이하게 이루어질 수 있으며 시공시간의 단축과 시공비용의 절감 효과를 얻을 수 있다.In the present invention, in sequentially lowering a horizontal support bar on which a form slab is installed at regular intervals to construct a slab of an underground construction, the horizontal support bar is lowered by supporting only a simple lifting hydraulic jack and a support support for supporting the lifting and lowering hydraulic jack. Because it can be done, the cost of constructing an underground structure can be reduced and the construction time can be greatly shortened through a simple configuration. By stacking a plurality of support bodies in multiple stages to support the lifting cylinder of the lifting hydraulic jack, Regardless of the length of the hydraulic jack cylinder that is lowered from the lowering hydraulic jack, the top of the horizontal support bar can be lowered according to the construction of underground structures, greatly improving work efficiency as well as work convenience, and achieving cost reduction effects. As the horizontal support bar is supported and lowered by the hydraulic jack and the support body stacked in multiple stages, the slab construction work of each floor can be performed firmly and easily when constructing the slab for the basement floor, and the construction time can be shortened and construction work can be done easily. Cost savings can be achieved.
도 1은 본 발명인 다단식 유압잭 지지장치 및 이를 이용한 탑다운 공법의 제1공정 내지 제4공정의 개념 구성도이다.
도 2 내지 도 4는 본 발명인 다단식 유압잭 지지장치 및 이를 이용한 탑다운 공법의 제5공정을 각각 나타낸 개념 구성도이다.
도 5는 본 발명인 다단식 유압잭 지지장치 및 이를 이용한 탑다운 공법의 서포트체 적층공정을 나타낸 개념구성도이다.
도 6은 본 발명인 다단식 유압잭 지지장치 및 이를 이용한 탑다운 공법의 서포트체 분리공정을 확대한 개념구성도이다.
도 7은 본 발명인 다단식 유압잭 지지장치 및 이를 이용한 탑다운 공법의 서포트체 구성을 나타낸 구성도이다.
도 8은 본 발명인 다단식 유압잭 지지장치 및 이를 이용한 탑다운 공법의 전체공정을 나타낸 공정도이다.
도 9는 본 발명인 다단식 유압잭 지지장치 및 이를 이용한 탑다운 공법의 제5공정을 나타낸 공정도이다.Figure 1 is a conceptual configuration diagram of the multi-stage hydraulic jack support device of the present invention and the first to fourth processes of the top-down method using the same.
Figures 2 to 4 are conceptual diagrams showing the multi-stage hydraulic jack support device of the present invention and the fifth process of the top-down method using the same.
Figure 5 is a conceptual diagram showing the multi-stage hydraulic jack support device of the present invention and the support layering process of the top-down method using the same.
Figure 6 is an expanded conceptual diagram of the multi-stage hydraulic jack support device of the present invention and the support body separation process of the top-down method using the same.
Figure 7 is a diagram showing the configuration of the multi-stage hydraulic jack support device of the present invention and the support body of the top-down method using the same.
Figure 8 is a process diagram showing the entire process of the multi-stage hydraulic jack support device of the present invention and the top-down method using the same.
Figure 9 is a process diagram showing the fifth process of the multi-stage hydraulic jack support device of the present invention and the top-down method using the same.
이하, 상기 목적외에 본 발명의 다른 목적 및 특징들은 첨부 도면을 참조한 실시예에 대한 설명을 통하여 명백히 드러나게 될 것이다.Hereinafter, other purposes and features of the present invention in addition to the above purposes will be clearly revealed 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 otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted in an ideal or excessively formal sense unless explicitly defined in the present application. No.
이하에서는, 본 발명의 실시예에 따른 다단식 유압잭 지지장치 및 이를 이용한 탑다운 공법을 첨부된 도면을 참고하여 좀 더 구체적으로 설명한다.Hereinafter, the multi-stage hydraulic jack support device and the top-down method using the same according to an embodiment of the present invention will be described in more detail with reference to the attached drawings.
본 발명은 다단식 유압잭 지지장치를 이용하여 슬라브거푸집을 갖는 수평지지바를 하강시키고 고정하는 동작을 반복적으로 진행하는 것으로, 이에 따라 동일구성에 대해서는 동일부호 및 동일명칭을 그대로 적용한다.In the present invention, the operation of lowering and fixing a horizontal support bar having a slab formwork is repeatedly performed using a multi-stage hydraulic jack support device. Accordingly, the same symbol and the same name are applied to the same configuration.
도시된 바와 같이 본 발명인 다단식 유압잭 지지장치는, 슬라브거푸집체가 시공되는 수평지지바(1)의 하단에 볼팅 고정되고 지중의 흙막이벽체(2)에 수직방향으로 하단을 지면에 박아 설치되는 수직지지바(3)에 위치되는 승하강유압잭지지체(10)와, 상기 승하강유압잭지지체(10)의 하부측에 위치되도록 상기 수직지지바(3)에 볼팅고정되는 서포트체지지체(20)와, 상기 승하강유압잭지지체(10)의 하단에 상단이 볼팅 고정되고 인출입되는 유압잭실린더(31)를 갖는 승하강유압잭(30)과, 상기 서포트체지지체(20)의 상단으로부터 수직방향으로 복수개 다단적층되어 상기 승하강유압잭(30)의 유압잭실린더(31)를 받쳐 지지하는 복수개 서포트체(40)로 구비된다.As shown, the multi-stage hydraulic jack support device of the present invention is a vertical support bar that is bolted to the lower end of the horizontal support bar (1) on which the slab formwork is constructed and installed by driving the lower end into the ground in the vertical direction of the underground retaining wall (2). A lifting and lowering hydraulic jack support body (10) located at (3), a support body support body (20) bolted to the vertical support bar (3) so as to be located on the lower side of the lifting and lowering hydraulic jack support body (10), and the A lifting and lowering hydraulic jack (30) having a hydraulic jack cylinder (31) whose upper end is bolted to the lower end of the lowering hydraulic jack support (10) and which is pulled out and retracted, and a plurality of multi-stage stacked in the vertical direction from the upper end of the support body (20). It is provided with a plurality of support bodies 40 that support the hydraulic jack cylinder 31 of the raising and lowering hydraulic jack 30.
상기 승하강유압잭(30)의 유압잭실린더(31)의 인출길이와 상기 복수개 서포트체(40)의 높이는 동일하게 이루어지는 것이 바람직한 것으로, 이는, 상기 복수개 서포트체(40)를 하나 씩 분리하면서, 승하강유압잭(30)의 유압잭실린더(31)를 인출하였을 때 서포트체(40)의 상단에 유압잭실린더(31)의 하단이 밀착되어 안착 지지되도록 하기 위함이다.It is desirable that the drawn-out length of the hydraulic jack cylinder 31 of the lifting and lowering hydraulic jack 30 and the height of the plurality of support bodies 40 are the same, which means that the lifting and lowering hydraulic jack 30 is separated one by one while the plurality of support bodies 40 are separated. This is to ensure that when the hydraulic jack cylinder 31 of the hydraulic jack 30 is pulled out, the lower end of the hydraulic jack cylinder 31 is seated and supported in close contact with the upper end of the support body 40.
이와 같이 이루어진 본 발명은, 승하강유압잭(30)과 서포트체지지체(20) 사이에 복수개 서포트체(40)를 다단으로 적층하여 승하강유압잭(30)의 승하강실린더(31)가 지지되도록 한 다음, 승하강유압잭(30)을 인출된 승하강실린더(31)측으로 하강시키는 동작에 의해 슬라브거푸집을 갖는 수평지지바(1)를 하강시킬 수 있기 때문에, 복수개 다단으로 적층된 서포트체를 하나씩 분리하면서 승하강유압잭의 실린더가 인출동작과 승하강유압잭의 하강동작을 반복하여 슬라브거푸집을 갖는 수평지지바를 하강할 수 있어, 지하층에 대한 슬라브 구축시에 슬라브거푸집을 갖는 수평지지바를 탑다운 공법에 의해 하강시키면서, 각 층의 슬라브 구축시공작업을 진행할 수 있다.The present invention made in this way is to support the lifting cylinder 31 of the lifting hydraulic jack 30 by stacking a plurality of supports 40 in multiple stages between the lifting hydraulic jack 30 and the support body 20. Next, since the horizontal support bar (1) having a slab form can be lowered by lowering the lifting hydraulic jack (30) toward the pulled out lifting cylinder (31), the support bodies stacked in multiple stages are separated one by one. While doing so, the cylinder of the lifting and lowering hydraulic jack can repeat the drawing operation and the lowering movement of the lifting and lowering hydraulic jack to lower the horizontal support bar with the slab form, so that when constructing a slab for the basement floor, the horizontal support bar with the slab form can be lowered using the top-down method. While lowering, slab construction work on each floor can be carried out.
본 발명의 상기 승하강유압지지체(10)는, 상기 수평지지바(1)의 하단에 볼팅고정되되 상기 수평지지바(1)에 대해 크로스 위치되어 고정되는 제1수평지지바브라켓(11)과, 상기 제1수평지지바브라켓(11)의 하단에 볼팅고정되되 상기 제1수평지지바브라켓(11)과 크로스 위치되도록 고정되는 제2수평지지바브라켓(12)과, 상기 제2수평지지바브라켓(12)의 하단에 밀착되도록 상기 수직지지바(3)에 볼팅 고정되는 제1기둥스토퍼(13)로 구비된다.The lifting and lowering hydraulic support body (10) of the present invention includes a first horizontal support bar bracket (11) that is bolted to the lower end of the horizontal support bar (1) and is fixed in a cross position with respect to the horizontal support bar (1). , a second horizontal support bar bracket (12) bolted to the lower end of the first horizontal support bar bracket (11) and fixed to be positioned cross-wise with the first horizontal support bar bracket (11), and the second horizontal support bar. It is provided with a first pillar stopper (13) that is bolted to the vertical support bar (3) so as to be in close contact with the bottom of the bracket (12).
이와 같이 이루어진 본 발명의 승하강유압지지체(10)는 상기 수평지지바(1)의 하단에 볼팅 고정되는 것으로, 상기 승하강유압지지체(10)의 하단에 상단이 고정되는 승하강유압잭(30)의 하강동작에 의해 하강돠면서 수평지지바(1)를 하강시킨다.The lifting hydraulic support 10 of the present invention constructed in this way is fixed by bolting to the lower end of the horizontal support bar 1, and the lifting hydraulic jack 30 is fixed at the upper end to the lower end of the lifting hydraulic support 10. The horizontal support bar (1) is lowered by the lowering motion.
또한, 상기 서포트체지지체(20)는, 상기 승하강유압지지체(10)의 하부측에 위치되는 서포트체지지바(21)와, 상기 서포트체지지바(21)를 수직지지바(3)에 볼팅고정하는 기둥하부브라켓(22)으로 구비된다.In addition, the support body supporter 20 includes a support body support bar 21 located on the lower side of the lifting and lowering hydraulic support body 10, and the support body support bar 21 is bolted to the vertical support bar 3. It is provided with a pillar lower bracket (22).
이와 같이 이루어진 본 발명의 서포트체지지체(20)는, 서포트체지지체(20)의 상단에 복수개 다단으로 적층되는 서포트체(40)가 모두 분리된 후에는, 상기 수직지지바(3)로부터 볼팅을 풀어 준 다음, 수직지지바(30)의 길이방향을 따라 하강 위치하고, 다시 수직지지바(3)와 견고하게 볼팅하여 고정한 후, 서포트체지지체(20)에 다시 복수개 서포트체(40)를 다단으로 적층하면 된다.In the support body 20 of the present invention constructed in this way, after all the supports 40 stacked in multiple stages on the upper end of the support body 20 are separated, bolting is performed from the vertical support bar 3. After loosening, it is lowered along the longitudinal direction of the vertical support bar (30), and is firmly bolted to the vertical support bar (3), and then a plurality of supports (40) are placed on the support body (20) in multiple stages. Just layer it.
본 발명의 상기 서포트체지지체(20)의 상단에 수직방향으로 복수개 다단 적층되는 복수개 서포트체(40)는 각각, 서로에 대해 대칭되게 위치되어 볼팅 고정되는 제1지지구(41)와 제2지지구(42)로 구비된다.The plurality of support bodies 40 of the present invention, which are stacked in multiple stages in a vertical direction on the top of the support body 20, are respectively positioned symmetrically with respect to each other and fixed by bolting to the first support body 41 and the second support body. It is provided with a district (42).
또한, 상기 제1지지구(41)는, 제1상부플랜지(411)와, 상기 제1상부플랜지(411)의 하부측에 위치되는 제1하부플랜지(412)와, 상기 제1상부플랜지(411)와 제1하부플랜지(412)를 연결하고 내측에 상기 유압잭실린더(31)가 안착지지되는 제1실린더지지부(413)와, 상기 제1지지구(41)의 외측 상하길이방향으로 돌출되는 제1체결부(414)로 이루어진다.In addition, the first support member 41 includes a first upper flange 411, a first lower flange 412 located on the lower side of the first upper flange 411, and the first upper flange ( 411) and the first lower flange 412, and connect the first cylinder support portion 413 on the inside of which the hydraulic jack cylinder 31 is seated and supported, and the outer vertical longitudinal direction of the first support member 41. It consists of a first fastening part 414.
또한, 상기 제2지지구(42)는, 상기 제1상부플랜지(411)와 대칭되게 위치되는 제2상부플랜지(421)와, 상기 제1하부플랜지(412)와 대칭되게 위치되는 제2하부플랜지(422)와, 상기 제2상부플랜지(421)와 제2하부플랜지(422)를 연결하고 내측에 상기 유압잭실린더(31)가 안착지지되는 제2실린더지지부(423)와, 상기 제1체결부(414)와 마주보도록 상기 제2지지구(42)의 외측 상하길이방향으로 돌출되는 제2체결부(424)로 이루어진다.In addition, the second support member 42 includes a second upper flange 421 positioned symmetrically to the first upper flange 411, and a second lower part positioned symmetrically to the first lower flange 412. A flange 422, a second cylinder support portion 423 that connects the second upper flange 421 and the second lower flange 422 and on which the hydraulic jack cylinder 31 is seated and supported, and the first fastener It consists of a second fastening portion 424 that protrudes in the vertical direction on the outer side of the second support member 42 to face the portion 414.
이와 같이 이루어진 본 발명의 제1지지구(41)와 제2지지구(42)를 갖는 서포트체(40)는, 상기 제1지지구(41)와 제2지지구(42)가 서로 포개어진 상태에서 상기 서로 대칭되게 마주보는 제1체결부(414)와 제2체결부(424)를 볼트와 너트로 고정하거나 또는 별도의 나사식체결구(미도시)를 이용하여 체결 고정하면 된다.The support body 40 having the first support member 41 and the second support member 42 of the present invention constructed as described above has the first support member 41 and the second support member 42 overlapped with each other. In this state, the first fastening part 414 and the second fastening part 424, which face each other symmetrically, can be fixed with bolts and nuts, or by fastening them using separate screw fasteners (not shown).
이와 같이 이루어진 본 발명의 다단식 유압잭 지지장치에 의해 슬라브거푸집체가 시공된 수평지지바(1)를 수직지지바(3)의 길이방향을 따라 탑다운 하여 지하구축물의 슬라브를 시공하는 것으로, 본 발명인 다단식 유압잭 지지장치를 이용한 탑다운 공법은, 제1공정(S1) 내지 제5공정(S5)으로 이루어진다.By top-down the horizontal support bar (1) on which the slab formwork is constructed by the multi-stage hydraulic jack support device of the present invention constructed as described above, along the longitudinal direction of the vertical support bar (3), the slab of the underground structure is constructed. The present inventor uses a multi-stage hydraulic jack support device. The top-down method using a hydraulic jack support device consists of the first process (S1) to the fifth process (S5).
본 발명의 제1공정(S1)은, 지중의 흙막이벽체(2)에 내측에 위치되고 하단이 지면에 박아져 수직방방향으로 설치된 수직지지바(3)에 위치되고, 슬라브거푸집체가 시공되는 수평지지바(1)의 하단과 상기 수직지지바(3)를 연결고정하는 승하강유압잭지지체(10)를 시공하는 공정이다.The first process (S1) of the present invention is located on the inside of the underground retaining wall (2), the lower end is driven into the ground, and is located on the vertical support bar (3) installed in the vertical direction, and the horizontal support bar (3) on which the slab formwork is constructed This is a process of constructing a lifting and lowering hydraulic jack support (10) that connects and secures the lower end of the support bar (1) and the vertical support bar (3).
즉, 지하공간을 구축하기 위해 지중에 하단이 박힌 수직지지바(3)를 축으로 하여 슬라브거푸집체가 시공된 수평지지바(1)의 하단과 수직지지바(3)를 승하강유압지지체(10)로 연결하여 시공한다.That is, in order to build an underground space, the lower end of the horizontal support bar (1) on which the slab formwork is constructed with the vertical support bar (3) with the lower end embedded in the ground as the axis and the vertical support bar (3) are raised and lowered hydraulic support (10). ) and construct it.
본 발명의 제2공정(S2)은, 제1공정(S1)에 의해 시공된 승하강유압잭지지체(10)의 하부측에 위치되도록 상기 수직지지바(3)에 서포트체지지체(20)를 볼팅 고정하는 공정이다.The second process (S2) of the present invention involves bolting the support body (20) to the vertical support bar (3) so that it is located on the lower side of the lifting and lowering hydraulic jack support (10) constructed by the first process (S1). It is a fixing process.
즉, 제1공정(S1)에 의해 수직지지바(3)를 축으로 시공된 승하강유압잭지지체(10)의 하부측에 위치되도록 서포트체지지체(20)를 일정 간격 이격시킨 상태로 수직지지바(3)에 볼팅 고정한다.That is, the vertical support bar 20 is spaced apart at a certain distance so as to be located on the lower side of the lifting and lowering hydraulic jack support 10, which was constructed around the vertical support bar 3 in the first process (S1). Bolt and secure at (3).
본 발명의 제3공정(S3)은, 제2공정(S2) 후, 상기 승하강유압잭지지체(10)의 하단에 승하강유압잭(30)의 상단을 볼팅고정하여 승하강유압잭(30)을 설치하는 공정이다.In the third process (S3) of the present invention, after the second process (S2), the lowering hydraulic jack (30) is installed by bolting the upper end of the lowering hydraulic jack (30) to the lower end of the lowering hydraulic jack support body (10). It is a process.
이 때, 도시된 바와 같이 승하강유압잭(30)의 유압잭실린더(31)가 상기 서포트체지지체(20)측으로 인출되도록 하여 승하강유압잭(30)을 승하강유압잭지지체(10)에 볼팅 연결하여 고정하면 된다.At this time, as shown, the hydraulic jack cylinder 31 of the lifting hydraulic jack 30 is pulled out toward the support body 20 and the lifting hydraulic jack 30 is connected to the lifting hydraulic jack support body 10 and fixed by bolting. Just do it.
또한, 본 발명의 제4공정(S4)은, 제3공정(S3) 후, 상기 서포트체지지체(20)의 상단으로부터 복수개 서포트체(40)를 다단으로 수직적층하되, 최상단에 위치하는 서포트체(40)가 상기 승하강유압잭(30)의 유압잭실린더(31)에 안착되도록 적층하는 공정이다. In addition, in the fourth process (S4) of the present invention, after the third process (S3), a plurality of support bodies (40) are vertically stacked in multiple stages from the top of the support body support body (20), and the support body located at the top This is a process of stacking (40) so that it is seated on the hydraulic jack cylinder (31) of the raising and lowering hydraulic jack (30).
이 때, 서포트체지지체(20)의 상단에 다단으로 복수개 적층되는 서포트체(40)의 개수는 공사현장에 따라 달라질 수 있음은 당연하다.At this time, it is natural that the number of support bodies 40 stacked in multiple stages on top of the support body 20 may vary depending on the construction site.
본 발명의 제5공정(S5)은, 제4공정(S4) 후, 상기 복수개 서포트체(40)를 하나씩 분리하면서 상기 슬라브거푸집체가 시공된 수평지지바(1)를 순차적으로 하강시키는 공정이다.The fifth process (S5) of the present invention is a process of sequentially lowering the horizontal support bar (1) on which the slab formwork is constructed while separating the plurality of support bodies (40) one by one after the fourth process (S4).
즉, 상기 제5공정(S5)은, 제4공정(S4) 후, 흙막이벽체(2)에 상기 수평지지바(1)를 수평지지바고정부(1a)로 고정한 다음, 승하강유압잭(30)의 유압잭실린더(31)를 승강시켜 유압잭실린더(31)가 복수개 적층된 서포트체(40) 중 최상단에 위치된 서포트체(40)로부터 이격되도록 하여 유압잭실린더(31)의 지지됨을 해제하는 유압잭실린더지지해제공정(S51)과, 상기 유압잭실린더지지해제공정(S51) 후, 유압잭실린더(31)로부터 이격된 서포트체(40)를 다단으로 적층된 복수개 서포트체(40)로부터 분리하는 최상단 서포트체분리공정(S52)과, 최상단 서포트체분리공정(S52) 후, 승강된 유압잭실린더(31)를 승하강유압잭(30)으로부터 인출하여 복수개 적층된 서포트체(40)의 상단에 유압잭실린더(31)가 안착되어 지지되도록 하는 유압잭실린더인출공정(S53)과, 유압잭실린더인출공정(S53) 후, 상기 흙막이벽체(2)에 수평지지바고정부(1a)로 고정된 수평지지바(1)를 흙막이벽체(2)로부터 고정을 해제하고, 상기 승하강유압잭(30)을 하강시켜 슬라브거푸집체가 시공된 수평지지바(1)를 하강시키는 수평지지바하강공정(S54)으로 이루어진다.That is, in the fifth process (S5), after the fourth process (S4), the horizontal support bar (1) is fixed to the retaining wall (2) with the horizontal support bar fixing part (1a), and then the lifting and lowering hydraulic jack (30) is performed. A hydraulic jack cylinder support that releases the support of the hydraulic jack cylinder (31) by lifting and lowering the hydraulic jack cylinder (31) so that the hydraulic jack cylinder (31) is separated from the support body (40) located at the top among the plurality of stacked support bodies (40). A release process (S51) and, after the hydraulic jack cylinder support release process (S51), an uppermost support body separation process for separating the support body 40 spaced apart from the hydraulic jack cylinder 31 from the plurality of support bodies 40 stacked in multiple stages. After (S52) and the uppermost support body separation process (S52), the lifted hydraulic jack cylinder 31 is pulled out from the raising and lowering hydraulic jack 30, and the hydraulic jack cylinder 31 is seated on the top of the plurality of stacked support bodies 40. After the hydraulic jack cylinder withdrawal process (S53) to be supported and the hydraulic jack cylinder withdrawal process (S53), the horizontal support bar (1) fixed to the retaining wall (2) with the horizontal support bar fixing part (1a) is attached to the retaining wall (2). ), and the horizontal support bar lowering process (S54) is performed to lower the horizontal support bar (1) on which the slab formwork is constructed by lowering the lifting and lowering hydraulic jack (30).
이에 따라, 슬라브거푸집체가 시공된 수평지지바(1)를 순차적으로 하강시키면서 수평지지바(1)에 시공된 슬라브거푸집체를 이용하여 지하공간에 대한 슬라브를 구축하면 된다.Accordingly, the slab for the underground space can be constructed using the slab formwork constructed on the horizontal support bar (1) while sequentially lowering the horizontal support bar (1) on which the slab formwork is constructed.
또한, 상기 제5공정(S5) 후, 다단으로 적층된 복수개 서포트체(40)가 모두 분리되면, 상기 흙막이벽체(2)에 수평지지바(1)를 고정한 다음, 상기 서포트체지지체(20)의 볼팅을 해제한 후, 서포트체지지체(20)를 다시 수직지지바(1)에 대해 하강 위치하여 상기 승하강유압잭지지체(10)와 이격되도록 한 다음, 다시 서포트체지지체(20)를 볼팅하여 수직지지바(1)에 고정하고, 상기 제4공정(S4) 및 제5공정(S5)을 반복하여 슬라브거푸집체가 시공된 수평지지바(1)를 하강시켜 계속해서 지하공간에 대한 슬라브를 구축하면 된다.In addition, after the fifth process (S5), when the plurality of support bodies 40 stacked in multiple stages are all separated, the horizontal support bar 1 is fixed to the retaining wall 2, and then the support body 20 is After releasing the bolting, the support body 20 is again lowered with respect to the vertical support bar 1 so that it is spaced apart from the lifting and lowering hydraulic jack support body 10, and then the support body 20 is bolted again. It is fixed to the vertical support bar (1), and the fourth process (S4) and the fifth process (S5) are repeated to lower the horizontal support bar (1) on which the slab formwork is constructed to continue building a slab for the underground space. Just do it.
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, the present invention has been described with specific details such as specific components and limited embodiments and drawings, but this is only provided to facilitate a more general understanding of the present invention, and the present invention is not limited to the above embodiments. Various modifications and variations can be made from this description by those skilled 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.Accordingly, the spirit of the present invention should not be limited to the described embodiments, and all claims that are equivalent or equivalent to the claims as well as the following claims fall within the scope of the present invention.
1 : 수평지지바
2 : 흙막이벽체
3 : 수직지지바
10 : 승하강유압잭지지체
11 : 제1수평지지바브라켓
12 : 제2수평지지바브라켓
13 : 제1기둥스토퍼
20 : 서포트체지지체
21 : 서포트체지지바
22 : 기둥하부브라켓
30 : 승하강유압잭
31 : 유압잭실린더
40 : 서포트체
41 : 제1지지구
411 : 제1상부플랜지
412 : 제1하부플랜지
413 ; 제1실린더지지부
414 : 제1체결부
42 : 제2지지구
421 ; 제2상부플랜지
422 : 제2하부플랜지
423 : 제2실린더지지부
424 : 제2체결부
S1 : 제1공정
S2 : 제2공정
S3 : 제3공정
S4 : 제4공정
S5 : 제5공정
S51 : 유압잭실린더지지해제공정
S52 : 최상단 서포트체분리공정
S53 : 유압잭실린더인출공정
S54 : 수평지지바하강공정1: Horizontal support bar 2: Earth retaining wall
3: Vertical support bar
10: Elevating and lowering hydraulic jack support body 11: First horizontal support bar bracket
12: 2nd horizontal support bar bracket 13: 1st column stopper
20: support body 21: support body bar
22: Column lower bracket
30: Raising and lowering hydraulic jack 31: Hydraulic jack cylinder
40: Support body 41: First support district
411: first upper flange 412: first lower flange
413 ; First cylinder support portion 414: First fastening portion
42: Second District 421; 2nd upper flange
422: Second lower flange 423: Second cylinder support
424: Second fastening part
S1: 1st process S2: 2nd process
S3: Third process S4: Fourth process
S5: Fifth process S51: Hydraulic jack cylinder support release process
S52: Top support body separation process S53: Hydraulic jack cylinder withdrawal process
S54: Horizontal support bar lowering process
Claims (5)
상기 승하강유압잭지지체(10)의 하부측에 위치되도록 상기 수직지지바(3)에 볼팅고정되는 서포트체지지체(20)와;
상기 승하강유압잭지지체(10)의 하단에 상단이 볼팅 고정되고 인출입되는 유압잭실린더(31)를 갖는 승하강유압잭(30)과;
상기 서포트체지지체(20)의 상단으로부터 수직방향으로 복수개 다단적층되어 상기 승하강유압잭(30)의 유압잭실린더(31)를 받쳐 지지하는 복수개 서포트체(40)로 구비되는 것을 특징으로 하는 다단식 유압잭 지지장치.The lifting and lowering hydraulic jack support (10) is fixed to the bottom of the horizontal support bar (1) on which the slab formwork is constructed by bolting and is located on the vertical support bar (3) installed by driving the lower end into the ground in the vertical direction of the underground retaining wall (2). )and;
A support body support body 20 fixed to the vertical support bar 3 by bolting so as to be located on the lower side of the lifting and lowering hydraulic jack support body 10;
A lifting and lowering hydraulic jack (30) having an upper end bolted to the lower end of the lifting and lowering hydraulic jack support body (10) and a hydraulic jack cylinder (31) that is withdrawn and retracted;
A multi-stage hydraulic jack support, characterized in that it is provided with a plurality of support bodies 40 that are stacked in a vertical direction from the top of the support body 20 and support the hydraulic jack cylinder 31 of the raising and lowering hydraulic jack 30. Device.
상기 승하강유압지지체(10)는,
상기 수평지지바(1)의 하단에 볼팅고정되되 상기 수평지지바(1)에 대해 크로스 위치되어 고정되는 제1수평지지바브라켓(11)과;
상기 제1수평지지바브라켓(11)의 하단에 볼팅고정되되 상기 제1수평지지바브라켓(11)과 크로스 위치되도록 고정되는 제2수평지지바브라켓(12)과;
상기 제2수평지지바브라켓(12)의 하단에 밀착되도록 상기 수직지지바(3)에 볼팅 고정되는 제1기둥스토퍼(13)로 구비되고,
상기 서포트체지지체(20)는,
상기 승하강유압지지체(10)의 하부측에 위치되는 서포트체지지바(21)와;
상기 서포트체지지바(21)를 수직지지바(3)에 볼팅고정하는 기둥하부브라켓(22)으로 구비되는 것을 특징으로 하는 다단식 유압잭 지지장치.According to paragraph 1,
The lifting and lowering hydraulic support body 10,
a first horizontal support bar bracket (11) bolted to the lower end of the horizontal support bar (1) and positioned crosswise and fixed with respect to the horizontal support bar (1);
A second horizontal support bar bracket (12) is bolted to the lower end of the first horizontal support bar bracket (11) and fixed to a cross position with the first horizontal support bar bracket (11);
It is provided with a first pillar stopper (13) bolted to the vertical support bar (3) so as to be in close contact with the lower end of the second horizontal support bar bracket (12),
The support body 20 is,
A support body support bar (21) located on the lower side of the lifting and lowering hydraulic support body (10);
A multi-stage hydraulic jack support device, characterized in that it is provided with a column lower bracket (22) that bolts the support bar (21) to the vertical support bar (3).
상기 서포트체지지체(20)의 상단에 수직방향으로 복수개 다단 적층되는 복수개 서포트체(40)는 각각, 서로에 대해 대칭되게 위치되어 볼팅 고정되는 제1지지구(41)와 제2지지구(42)로 구비되고,
상기 제1지지구(41)는,
제1상부플랜지(411)와;
상기 제1상부플랜지(411)의 하부측에 위치되는 제1하부플랜지(412)와;
상기 제1상부플랜지(411)와 제1하부플랜지(412)를 연결하고 내측에 상기 유압잭실린더(31)가 안착지지되는 제1실린더지지부(413)와;
상기 제1지지구(41)의 외측 상하길이방향으로 돌출되는 제1체결부(414)로 이루어지며,
상기 제2지지구(42)는,
상기 제1상부플랜지(411)와 대칭되게 위치되는 제2상부플랜지(421)와;
상기 제1하부플랜지(412)와 대칭되게 위치되는 제2하부플랜지(422)와;
상기 제2상부플랜지(421)와 제2하부플랜지(422)를 연결하고 내측에 상기 유압잭실린더(31)가 안착지지되는 제2실린더지지부(423)와;
상기 제1체결부(414)와 마주보도록 상기 제2지지구(42)의 외측 상하길이방향으로 돌출되는 제2체결부(424)로 이루어지는 것을 특징으로 하는 다단식 유압잭 지지장치.According to paragraph 1,
The plurality of support bodies 40 stacked in a plurality of stages in the vertical direction on the top of the support body 20 include a first support body 41 and a second support body 42, which are respectively positioned symmetrically with respect to each other and fixed by bolting. ) is provided,
The first constituency 41 is,
A first upper flange (411);
a first lower flange 412 located on the lower side of the first upper flange 411;
a first cylinder support portion 413 that connects the first upper flange 411 and the first lower flange 412 and on which the hydraulic jack cylinder 31 is seated and supported;
It consists of a first fastening portion 414 protruding in the vertical and longitudinal direction on the outside of the first support member 41,
The second constituency 42 is,
a second upper flange (421) positioned symmetrically to the first upper flange (411);
a second lower flange (422) positioned symmetrically to the first lower flange (412);
a second cylinder support portion 423 that connects the second upper flange 421 and the second lower flange 422 and on which the hydraulic jack cylinder 31 is seated and supported;
A multi-stage hydraulic jack support device, characterized in that it consists of a second fastening part (424) protruding in the vertical direction outside the second support member (42) to face the first fastening part (414).
제1공정(S1)에 의해 시공된 승하강유압잭지지체(10)의 하부측에 위치되도록 상기 수직지지바(3)에 서포트체지지체(20)를 볼팅 고정하는 제2공정(S2);
제2공정(S2) 후, 상기 승하강유압잭지지체(10)의 하단에 승하강유압잭(30)의 상단을 볼팅고정하여 승하강유압잭(30)을 설치하는 제3공정(S3);
제3공정(S3) 후, 상기 서포트체지지체(20)의 상단으로부터 복수개 서포트체(40)를 다단으로 수직적층하되, 최상단에 위치하는 서포트체(40)가 상기 승하강유압잭(30)의 유압잭실린더(31)에 안착되도록 적층하는 제4공정(S4);
제4공정(S4) 후, 상기 복수개 서포트체(40)를 하나씩 분리하면서 상기 슬라브거푸집체가 시공된 수평지지바(1)를 순차적으로 하강시키는 제5공정(S5)으로 이루어지는 것을 특징으로 하는 다단식 유압잭 지지장치를 이용한 탑다운 공법.It is located inside the underground retaining wall (2) and the lower end is placed on the vertical support bar (3) driven into the ground and installed in the vertical direction, and the lower end of the horizontal support bar (1) on which the slab formwork is constructed and the vertical support A first process (S1) of constructing a lifting and lowering hydraulic jack support body (10) for connecting and fixing the bar (3);
A second process (S2) of bolting and fixing the support body support body (20) to the vertical support bar (3) so that it is located on the lower side of the lifting and lowering hydraulic jack support body (10) constructed by the first process (S1);
After the second process (S2), a third process (S3) of installing the lowering hydraulic jack (30) by bolting the upper end of the lowering hydraulic jack (30) to the lower end of the lowering hydraulic jack support body (10);
After the third process (S3), a plurality of support bodies 40 are vertically stacked in multiple stages from the top of the support body support body 20, and the support body 40 located at the top is the hydraulic jack of the raising and lowering hydraulic jack 30. A fourth process (S4) of stacking to be seated on the cylinder 31;
After the fourth process (S4), a fifth process (S5) is performed in which the plurality of support bodies (40) are separated one by one and the horizontal support bars (1) on which the slab formwork is constructed are sequentially lowered. Top-down method using a support device.
상기 제5공정(S5)은,
제4공정(S4) 후, 흙막이벽체(2)에 상기 수평지지바(1)를 수평지지바고정부(1a)로 고정한 다음, 승하강유압잭(30)의 유압잭실린더(31)를 승강시켜 유압잭실린더(31)가 복수개 적층된 서포트체(40) 중 최상단에 위치된 서포트체(40)로부터 이격되도록 하여 유압잭실린더(31)의 지지됨을 해제하는 유압잭실린더지지해제공정(S51);
상기 유압잭실린더지지해제공정(S51) 후, 유압잭실린더(31)로부터 이격된 서포트체(40)를 다단으로 적층된 복수개 서포트체(40)로부터 분리하는 최상단 서포트체분리공정(S52)과;
최상단 서포트체분리공정(S52) 후, 승강된 유압잭실린더(31)를 승하강유압잭(30)으로부터 인출하여 복수개 적층된 서포트체(40)의 상단에 유압잭실린더(31)가 안착되어 지지되도록 하는 유압잭실린더인출공정(S53);
유압잭실린더인출공정(S53) 후, 상기 흙막이벽체(2)에 수평지지바고정부(1a)로 고정된 수평지지바(1)를 흙막이벽체(2)로부터 고정을 해제하고, 상기 승하강유압잭(30)을 하강시켜 슬라브거푸집체가 시공된 수평지지바(1)를 하강시키는 수평지지바하강공정(S54)으로 이루어지고,
상기 제5공정(S5) 후,
다단으로 적층된 복수개 서포트체(40)가 모두 분리되면, 상기 흙막이벽체(2)에 수평지지바(1)를 고정한 다음, 상기 서포트체지지체(20)의 볼팅을 해제한 후, 서포트체지지체(20)를 다시 수직지지바(1)에 대해 하강 위치하여 상기 승하강유압잭지지체(10)와 이격되도록 한 다음, 다시 서포트체지지체(20)를 볼팅하여 수직지지바(1)에 고정하고, 상기 제4공정(S4) 및 제5공정(S5)을 반복하여 슬라브거푸집체가 시공된 수평지지바(1)를 하강시키도록 이루어지는 것을 특징으로 하는 다단식 유압잭 지지장치를 이용한 탑다운 공법.According to clause 4,
The fifth process (S5) is,
After the fourth process (S4), the horizontal support bar (1) is fixed to the retaining wall (2) with the horizontal support bar fixing part (1a), and then the hydraulic jack cylinder (31) of the raising and lowering hydraulic jack (30) is raised and lowered to form a hydraulic jack cylinder. A hydraulic jack cylinder support release process (S51) in which support of the hydraulic jack cylinder 31 is released by allowing the support body 40 (31) to be spaced apart from the support body 40 located at the uppermost position among the plurality of stacked support bodies 40;
After the hydraulic jack cylinder support release process (S51), an uppermost support body separation process (S52) of separating the support body 40 spaced apart from the hydraulic jack cylinder 31 from the plurality of support bodies 40 stacked in multiple stages;
After the uppermost support body separation process (S52), the lifted hydraulic jack cylinder 31 is withdrawn from the raising and lowering hydraulic jack 30, and the hydraulic jack cylinder 31 is seated and supported on the top of the plurality of stacked support bodies 40. Cylinder withdrawal process (S53);
After the hydraulic jack cylinder withdrawal process (S53), the horizontal support bar (1) fixed to the earth retaining wall (2) with the horizontal support bar fixing part (1a) is unfastened from the earth retaining wall (2), and the raising and lowering hydraulic jack (30) ) is composed of a horizontal support bar lowering process (S54) in which the horizontal support bar (1) on which the slab formwork is constructed is lowered,
After the fifth process (S5),
When the plurality of support bodies 40 stacked in multiple stages are all separated, the horizontal support bar 1 is fixed to the earth retaining wall 2, and then the bolting of the support body 20 is released, and then the support body support body ( 20) is again positioned lower with respect to the vertical support bar (1) so that it is spaced apart from the lifting and lowering hydraulic jack support body (10), and then the support body support body (20) is bolted again and fixed to the vertical support bar (1), A top-down method using a multi-stage hydraulic jack support device, characterized in that the fourth process (S4) and the fifth process (S5) are repeated to lower the horizontal support bar (1) on which the slab formwork is constructed.
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