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Prestressed concrete foundation pit supporting structure and construction method
The invention relates to a prestressed concrete foundation pit supporting structure and a construction method. The prestressed concrete foundation pit supporting structure comprises a soil retaining structure device arranged on the periphery of a foundation pit and one or more prestressed concrete cross beams; the first end of the soil retaining structure device is fixed to the bottom of the foundation pit, the second end of the soil retaining structure device is arranged on the top of the foundation pit, and a soil retaining structure is formed, such as a support pile or an underground diaphragm wall; the one or more prestressed concrete cross beams transversely penetrate through at least part of the soil retaining structure device in the horizontal direction and are configured to generate a deformation trend towards the outside of the foundation pit. According to the prestressed concrete foundation pit supporting structure, the one or more prestressed cross beams can be arranged in the horizontal direction of the foundation pit, so that the structural internal force of the supporting structure can be reduced, structural deformation can be reduced, the bending and shearing bearing capacity of the soil retaining structure can be improved, and the supporting requirement of the deeper foundation pit can be met.
本发明涉及一种预应力混凝土基坑支护结构及施工方法，其中，所述预应力混凝土基坑支护结构，包括：挡土结构装置，其设置于基坑的四周，所述挡土结构装置的第一端固定于基坑底部，所述挡土结构装置的第二端在基坑顶部，形成挡土结构，例如：支护桩或地下连续墙；以及一个或多个预应力混凝土的横梁，其在水平方向上横贯至少部分挡土结构装置，并经配置以产生朝向所述基坑外的形变趋势。本申请的基坑支护结构，在基坑水平方向上可以设置一个或多个预应力横梁，从而可以降低支护结构的结构内力、减小结构变形、提高挡土结构的受弯和受剪承载力，可以适应更深基坑的支护需求。
Prestressed concrete foundation pit supporting structure and construction method
The invention relates to a prestressed concrete foundation pit supporting structure and a construction method. The prestressed concrete foundation pit supporting structure comprises a soil retaining structure device arranged on the periphery of a foundation pit and one or more prestressed concrete cross beams; the first end of the soil retaining structure device is fixed to the bottom of the foundation pit, the second end of the soil retaining structure device is arranged on the top of the foundation pit, and a soil retaining structure is formed, such as a support pile or an underground diaphragm wall; the one or more prestressed concrete cross beams transversely penetrate through at least part of the soil retaining structure device in the horizontal direction and are configured to generate a deformation trend towards the outside of the foundation pit. According to the prestressed concrete foundation pit supporting structure, the one or more prestressed cross beams can be arranged in the horizontal direction of the foundation pit, so that the structural internal force of the supporting structure can be reduced, structural deformation can be reduced, the bending and shearing bearing capacity of the soil retaining structure can be improved, and the supporting requirement of the deeper foundation pit can be met.
本发明涉及一种预应力混凝土基坑支护结构及施工方法，其中，所述预应力混凝土基坑支护结构，包括：挡土结构装置，其设置于基坑的四周，所述挡土结构装置的第一端固定于基坑底部，所述挡土结构装置的第二端在基坑顶部，形成挡土结构，例如：支护桩或地下连续墙；以及一个或多个预应力混凝土的横梁，其在水平方向上横贯至少部分挡土结构装置，并经配置以产生朝向所述基坑外的形变趋势。本申请的基坑支护结构，在基坑水平方向上可以设置一个或多个预应力横梁，从而可以降低支护结构的结构内力、减小结构变形、提高挡土结构的受弯和受剪承载力，可以适应更深基坑的支护需求。
Prestressed concrete foundation pit supporting structure and construction method
一种预应力混凝土基坑支护结构及施工方法
YANG BIN (author) / WU CHUNQIU (author) / ZUO HUAIXI (author) / XUE LIYING (author)
2021-06-18
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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