A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Support changing structure in deep and large foundation pit partition cross-stage back building and construction method of support changing structure
The invention belongs to the field of urban underground space development, and relates to a support changing structure in deep and large foundation pit partition cross-stage back building and a construction method of the support changing structure. According to the technical scheme, a bottom plate structure and an inner horizontal supporting structure are sequentially arranged in the foundation pit support structure from bottom to top; the support changing transition structure is arranged between a first back-building area in a foundation pit and a second back-building area in the foundation pit and comprises an inclined support changing structure and a support changing plate wall fixed to a bottom plate structure. The support changing plate walls are double walls which are oppositely arranged and comprise a left support changing plate wall and a right support changing plate wall; the inner horizontal supporting structure is broken by the support changing plate wall, and the inner horizontal supporting structure of the rear backbuilding area in the foundation pit is fixedly connected with the left support changing plate wall; and the inclined support changing structure is arranged in the first backbuilding area in the foundation pit and is connected with the right support changing plate wall and the bottom plate structure. On the premise of not excavating in different areas, the novel support changing system can achieve the purposes that supports are dismantled and backbuilt in multiple stages in advance in a specific area, and meanwhile it is ensured that the supporting systems of other remaining areas are still stable and reliable.
本发明属于城市地下空间开发领域的一种深大基坑分区跨阶段回筑中的换撑结构及其施工方法。技术方案为：基坑围护结构内由下往上依次为底板结构和内水平支撑结构；换撑过渡结构设置在基坑内先回筑区和基坑内后回筑区之间，换撑过渡结构包括斜向换撑结构和固定在底板结构上的换撑板墙；换撑板墙为相对布置的双墙，包括左换撑板墙和右换撑板墙；换撑板墙把内水平支撑结构打断，基坑内后回筑区的内水平支撑结构与左换撑板墙连接固定；斜向换撑结构设置在基坑内先回筑区内，连接右换撑板墙和底板结构。可在不分区开挖前提下，达成特定区域先行跨多阶段拆除支撑、回筑，同时确保其他剩余部分区域的支撑体系仍旧稳定可靠的一种新的换撑体系。
Support changing structure in deep and large foundation pit partition cross-stage back building and construction method of support changing structure
The invention belongs to the field of urban underground space development, and relates to a support changing structure in deep and large foundation pit partition cross-stage back building and a construction method of the support changing structure. According to the technical scheme, a bottom plate structure and an inner horizontal supporting structure are sequentially arranged in the foundation pit support structure from bottom to top; the support changing transition structure is arranged between a first back-building area in a foundation pit and a second back-building area in the foundation pit and comprises an inclined support changing structure and a support changing plate wall fixed to a bottom plate structure. The support changing plate walls are double walls which are oppositely arranged and comprise a left support changing plate wall and a right support changing plate wall; the inner horizontal supporting structure is broken by the support changing plate wall, and the inner horizontal supporting structure of the rear backbuilding area in the foundation pit is fixedly connected with the left support changing plate wall; and the inclined support changing structure is arranged in the first backbuilding area in the foundation pit and is connected with the right support changing plate wall and the bottom plate structure. On the premise of not excavating in different areas, the novel support changing system can achieve the purposes that supports are dismantled and backbuilt in multiple stages in advance in a specific area, and meanwhile it is ensured that the supporting systems of other remaining areas are still stable and reliable.
本发明属于城市地下空间开发领域的一种深大基坑分区跨阶段回筑中的换撑结构及其施工方法。技术方案为：基坑围护结构内由下往上依次为底板结构和内水平支撑结构；换撑过渡结构设置在基坑内先回筑区和基坑内后回筑区之间，换撑过渡结构包括斜向换撑结构和固定在底板结构上的换撑板墙；换撑板墙为相对布置的双墙，包括左换撑板墙和右换撑板墙；换撑板墙把内水平支撑结构打断，基坑内后回筑区的内水平支撑结构与左换撑板墙连接固定；斜向换撑结构设置在基坑内先回筑区内，连接右换撑板墙和底板结构。可在不分区开挖前提下，达成特定区域先行跨多阶段拆除支撑、回筑，同时确保其他剩余部分区域的支撑体系仍旧稳定可靠的一种新的换撑体系。
Support changing structure in deep and large foundation pit partition cross-stage back building and construction method of support changing structure
一种深大基坑分区跨阶段回筑中的换撑结构及其施工方法
CHEN SIQI (author) / FENG CUIXIA (author) / LI JUNYI (author) / LIU JIANG (author) / YANG DEZHI (author) / ZENG WENZE (author) / LU LIJUN (author) / ZHANG JICHUN (author) / WU JIANFENG (author) / XU HUAN (author)
2022-11-25
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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