A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Inclined strut structure and construction method of combined support in foundation pit
The embodiment of the invention discloses an inclined strut structure and a construction method of a combined support in a foundation pit. A first inclined strut assembly and a second inclined strut assembly are symmetrical about the central axis of the foundation pit and play a role in resisting transverse soil pressure on the side wall of the foundation pit. A crown beam is constructed on a supporting pile, a hidden beam is constructed on a force transmission pile, one end of an inclined strut is connected with the crown beam, the other end of the inclined strut is connected with the hidden beam, and the inclined strut is detachable. When the supporting pile and the force transmission pile are constructed and reach the design strength, basin type excavation is carried out to the pit bottom elevation, after grooving construction of the hidden beam and a reinforcement cushion layer, the inclined strut is directly connected with the hidden beam and the crown beam, after the foundation pit is excavated to the pit bottom, a bottom plate and a force transmission belt are constructed and reach the design strength, the inclined strut is detached, the inclined strut can be repeatedly used, and the utilization rate of the inclined strut is increased. The problem that disposable materials of a common support are wasted is solved, compared with the common inclined strut, a post-cast strip does not need to be additionally arranged, structural construction is convenient, the inclined strut is only arranged on the periphery, excavation is convenient, and the earth excavation progress is accelerated.
本发明实施例公开了一种斜撑结构及其在基坑中组合支撑的施工方法，第一斜撑组件和第二斜撑组件关于基坑的中轴线对称，对基坑侧壁起到抵挡横向土压力的作用。通过在支护桩上施工冠梁，在传力桩上施工暗梁，斜撑的一端与冠梁连接，另一端与暗梁连接，斜撑可拆卸。当支护桩、传力桩施工完毕并达到设计强度，盆式开挖至坑底标高，开槽施工暗梁及配筋垫层后，直接将斜撑与暗梁和冠梁连接，在基坑开挖至坑底且底板及传力带施工完毕并达到设计强度后，拆除斜撑，使斜撑可以重复利用，提高了斜撑的利用率。解决了普通支撑一次性材料浪费问题，相对于普通斜撑，无需另外设置后浇带，结构施工方便，斜撑只在周边设置，开挖方便，加快了土方开挖的进度。
Inclined strut structure and construction method of combined support in foundation pit
The embodiment of the invention discloses an inclined strut structure and a construction method of a combined support in a foundation pit. A first inclined strut assembly and a second inclined strut assembly are symmetrical about the central axis of the foundation pit and play a role in resisting transverse soil pressure on the side wall of the foundation pit. A crown beam is constructed on a supporting pile, a hidden beam is constructed on a force transmission pile, one end of an inclined strut is connected with the crown beam, the other end of the inclined strut is connected with the hidden beam, and the inclined strut is detachable. When the supporting pile and the force transmission pile are constructed and reach the design strength, basin type excavation is carried out to the pit bottom elevation, after grooving construction of the hidden beam and a reinforcement cushion layer, the inclined strut is directly connected with the hidden beam and the crown beam, after the foundation pit is excavated to the pit bottom, a bottom plate and a force transmission belt are constructed and reach the design strength, the inclined strut is detached, the inclined strut can be repeatedly used, and the utilization rate of the inclined strut is increased. The problem that disposable materials of a common support are wasted is solved, compared with the common inclined strut, a post-cast strip does not need to be additionally arranged, structural construction is convenient, the inclined strut is only arranged on the periphery, excavation is convenient, and the earth excavation progress is accelerated.
本发明实施例公开了一种斜撑结构及其在基坑中组合支撑的施工方法，第一斜撑组件和第二斜撑组件关于基坑的中轴线对称，对基坑侧壁起到抵挡横向土压力的作用。通过在支护桩上施工冠梁，在传力桩上施工暗梁，斜撑的一端与冠梁连接，另一端与暗梁连接，斜撑可拆卸。当支护桩、传力桩施工完毕并达到设计强度，盆式开挖至坑底标高，开槽施工暗梁及配筋垫层后，直接将斜撑与暗梁和冠梁连接，在基坑开挖至坑底且底板及传力带施工完毕并达到设计强度后，拆除斜撑，使斜撑可以重复利用，提高了斜撑的利用率。解决了普通支撑一次性材料浪费问题，相对于普通斜撑，无需另外设置后浇带，结构施工方便，斜撑只在周边设置，开挖方便，加快了土方开挖的进度。
Inclined strut structure and construction method of combined support in foundation pit
一种斜撑结构及其在基坑中组合支撑的施工方法
YI JUAN (author) / HU BAOSHAN (author) / WANG JIANJUN (author) / LIU TAO (author)
2021-05-11
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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