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Foundation treatment structure suitable for deep soft foundation with sandwiched thin bearing stratum and construction method
The invention belongs to the field of geotechnical engineering, and particularly relates to a foundation treatment structure suitable for a deep soft foundation with a sandwiched thin bearing stratumand a construction method. The foundation treatment structure comprises a raft, a mattress layer, pipe piles and stirring piles, wherein the mattress layer is arranged at the bottom of the raft and located at the top of an upper soft soil foundation layer; the pipe piles are arranged at intervals and arranged at the bottom of the mattress layer, and the lower ends of the pipe piles are located ina middle bearing stratum; and the stirring piles are arranged at intervals and arranged at the bottom of the mattress layer and located in the upper soft soil foundation layer. According to the foundation treatment structure suitable for the deep soft foundation with the sandwiched thin bearing stratum, the engineering investment is saved; and settlement of a composite foundation is reduced, the bearing capacity of the composite foundation is improved, and the problems that the foundation settlement is large, the foundation bearing capacity is low and the pipe piles are prone to piercing the middle bearing stratum when the pipe piles are located in the middle bearing stratum are solved.
本发明属于岩土工程领域，具体涉及适用于夹薄持力层的深厚软基地基处理结构及施工方法，其中，所述地基处理结构包括：筏板；褥垫层，设置于所述筏板底部，所述褥垫层位于上部软土地基层顶部；管桩，间隔设置，所述管桩设置于所述褥垫层底部，所述管桩下端位于中部持力层中；搅拌桩，间隔设置，所述搅拌桩，设置于所述褥垫层底部，所述搅拌桩位于上部软土地基层中。本发明所述的一种适用于夹薄持力层的深厚软基地基处理结构，节约了工程投资；减小了复合地基的沉降并提高了复合地基的承载力，解决了管桩位于中部持力层地基沉降大、地基承载力低和管桩易刺穿中部持力层的问题。
Foundation treatment structure suitable for deep soft foundation with sandwiched thin bearing stratum and construction method
The invention belongs to the field of geotechnical engineering, and particularly relates to a foundation treatment structure suitable for a deep soft foundation with a sandwiched thin bearing stratumand a construction method. The foundation treatment structure comprises a raft, a mattress layer, pipe piles and stirring piles, wherein the mattress layer is arranged at the bottom of the raft and located at the top of an upper soft soil foundation layer; the pipe piles are arranged at intervals and arranged at the bottom of the mattress layer, and the lower ends of the pipe piles are located ina middle bearing stratum; and the stirring piles are arranged at intervals and arranged at the bottom of the mattress layer and located in the upper soft soil foundation layer. According to the foundation treatment structure suitable for the deep soft foundation with the sandwiched thin bearing stratum, the engineering investment is saved; and settlement of a composite foundation is reduced, the bearing capacity of the composite foundation is improved, and the problems that the foundation settlement is large, the foundation bearing capacity is low and the pipe piles are prone to piercing the middle bearing stratum when the pipe piles are located in the middle bearing stratum are solved.
本发明属于岩土工程领域，具体涉及适用于夹薄持力层的深厚软基地基处理结构及施工方法，其中，所述地基处理结构包括：筏板；褥垫层，设置于所述筏板底部，所述褥垫层位于上部软土地基层顶部；管桩，间隔设置，所述管桩设置于所述褥垫层底部，所述管桩下端位于中部持力层中；搅拌桩，间隔设置，所述搅拌桩，设置于所述褥垫层底部，所述搅拌桩位于上部软土地基层中。本发明所述的一种适用于夹薄持力层的深厚软基地基处理结构，节约了工程投资；减小了复合地基的沉降并提高了复合地基的承载力，解决了管桩位于中部持力层地基沉降大、地基承载力低和管桩易刺穿中部持力层的问题。
Foundation treatment structure suitable for deep soft foundation with sandwiched thin bearing stratum and construction method
适用于夹薄持力层的深厚软基地基处理结构及施工方法
WU SHAOHAI (author) / TAN QIONG (author) / LI GUODONG (author) / DAI WEI (author) / ZHANG LI (author) / WANG ZHIMENG (author) / CHU YUGUANG (author) / XIAO HANG (author) / XIAO CHAOQIAN (author) / CHEN JIANWU (author)
2020-06-23
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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