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A platform for research: civil engineering, architecture and urbanism
Existing raft foundation double-layer sinking stopping structure and construction method
The invention discloses the technical field of building construction, and particularly relates to an existing raft foundation double-layer sinking stopping structure and a construction method.A newly-added raft is arranged on the upper portion of an existing raft foundation and connected with an existing vertical structure, so that the newly-added raft can share the load of an upper structure of the existing foundation, and the structure of the existing raft foundation is more stable. Meanwhile, the supporting columns are connected between the existing raft plate foundation and the newly-added raft plate, the existing raft plate foundation, the newly-added raft plate and the supporting columns form a double-layer anti-sinking structure to increase the out-of-plane rigidity of the existing raft plate foundation and improve the non-deformability of the existing raft plate foundation, and in other words, the bearing performance of the existing raft plate foundation is fully utilized; according to the double-layer sinking stopping structure for the existing raft foundation, the overall plane outer rigidity of the double-layer sinking stopping structure is effectively exerted, sinking of the existing raft foundation is reduced, the sinking stopping effect is achieved, further, by arranging the double-layer sinking stopping structure for the existing raft foundation, excavation and re-reinforcement of the existing raft foundation with a certain embedding depth are greatly reduced, large-area earth excavation is not needed, and the construction cost is reduced. The reinforcement cost is saved.
本发明公开了一种建筑施工技术领域，特别涉及一种既有筏板基础双层止沉结构及施工方法，在既有筏板基础上部设置新增筏板，新增筏板与既有竖向结构相连接，使新增筏板能够分担既有基础的上部结构载荷，同时在既有筏板基础和新增筏板之间连接有支撑柱，通过既有筏板基础、新增筏板和支撑柱形成双层止沉结构来增加既有筏板基础平面外刚度并提高其抗变形能力，即充分利用既有筏板基础的承载性能，又有效发挥双层止沉结构整体平面外刚度来减少既有筏板基础沉降，实现止沉效果，进一步地，通过设置本发明所述的既有筏板基础双层止沉结构，大量减少了对有一定埋置深度既有筏板基础的开挖和再加固，且不用进行大面积土方开挖，节约加固造价。
Existing raft foundation double-layer sinking stopping structure and construction method
The invention discloses the technical field of building construction, and particularly relates to an existing raft foundation double-layer sinking stopping structure and a construction method.A newly-added raft is arranged on the upper portion of an existing raft foundation and connected with an existing vertical structure, so that the newly-added raft can share the load of an upper structure of the existing foundation, and the structure of the existing raft foundation is more stable. Meanwhile, the supporting columns are connected between the existing raft plate foundation and the newly-added raft plate, the existing raft plate foundation, the newly-added raft plate and the supporting columns form a double-layer anti-sinking structure to increase the out-of-plane rigidity of the existing raft plate foundation and improve the non-deformability of the existing raft plate foundation, and in other words, the bearing performance of the existing raft plate foundation is fully utilized; according to the double-layer sinking stopping structure for the existing raft foundation, the overall plane outer rigidity of the double-layer sinking stopping structure is effectively exerted, sinking of the existing raft foundation is reduced, the sinking stopping effect is achieved, further, by arranging the double-layer sinking stopping structure for the existing raft foundation, excavation and re-reinforcement of the existing raft foundation with a certain embedding depth are greatly reduced, large-area earth excavation is not needed, and the construction cost is reduced. The reinforcement cost is saved.
本发明公开了一种建筑施工技术领域，特别涉及一种既有筏板基础双层止沉结构及施工方法，在既有筏板基础上部设置新增筏板，新增筏板与既有竖向结构相连接，使新增筏板能够分担既有基础的上部结构载荷，同时在既有筏板基础和新增筏板之间连接有支撑柱，通过既有筏板基础、新增筏板和支撑柱形成双层止沉结构来增加既有筏板基础平面外刚度并提高其抗变形能力，即充分利用既有筏板基础的承载性能，又有效发挥双层止沉结构整体平面外刚度来减少既有筏板基础沉降，实现止沉效果，进一步地，通过设置本发明所述的既有筏板基础双层止沉结构，大量减少了对有一定埋置深度既有筏板基础的开挖和再加固，且不用进行大面积土方开挖，节约加固造价。
Existing raft foundation double-layer sinking stopping structure and construction method
一种既有筏板基础双层止沉结构及施工方法
KANG JINGWEN (author) / CUI TONGJIAN (author) / WU YADONG (author) / ZENG XUESONG (author) / CHEN HAOQI (author) / XUE WENKUN (author) / HU LUNJUN (author) / WANG LIANG (author) / LI JINGE (author) / ZHU JUNQI (author)
2023-09-22
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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