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A platform for research: civil engineering, architecture and urbanism
Sparsely-distributed rigid pile composite foundation with pile ends as bedrock and construction method of sparsely-distributed rigid pile composite foundation
The sparsely-distributed rigid pile composite foundation comprises a plurality of rigid piles, the pile ends of the rigid piles are arranged in the bedrock, the pile tops of the rigid piles abut against a mattress layer, the bedrock comprises the fully-weathered bedrock, the strongly-weathered bedrock, the moderately-weathered bedrock and the slightly-weathered bedrock, and when the pile ends of the rigid piles are located in the moderately-weathered bedrock or the slightly-weathered bedrock, the pile ends of the rigid piles abut against the mattress layer. A weakening cushion layer of which the compactness is consistent with that of the fully-weathered or strongly-weathered bedrock is arranged below the pile end of the rigid pile; the weakening cushion layer is arranged on the moderately-weathered or slightly-weathered bed rock part to adjust the deformation amplitude of the rigid piles, so that the deformation amplitude is consistent with the deformation amplitude of complete weathering or strong weathering, the exertion amplitude of the soil bearing capacity between the piles is improved, the deformation coordination condition of the composite foundation is met, differential settlement between the rigid piles is reduced, and the construction quality is improved. The rigid piles are sparsely distributed under the foundation to control the deformation control value of the building, so that the purposes of improving the bearing capacity of the foundation and controlling the deformation of the foundation are achieved.
本发明公开了一种桩端为基岩的疏布刚性桩复合地基，包括桩端设置在基岩内、桩顶与褥垫层抵靠的若干刚性桩，所述基岩包括全风化基岩、强风化基岩、中风化基岩和微风化基岩，当所述刚性桩的桩端位于中风化或微风化基岩中时，所述刚性桩的桩端下设置密实度与全风化或强风化基岩密实度一致的弱化垫层；本发明通过在中风化或微风化基岩部分设置弱化垫层调节刚性桩的变形幅度，使之与全风化或者强风化的变形幅度一致，提高桩间土承载能力的发挥幅度，满足复合地基变形协调条件，降低各刚性桩间的不均匀沉降，通过基础下疏布刚性桩控制建筑物的控制变形值，达到既提高地基承载力，又控制地基变形的目的。
Sparsely-distributed rigid pile composite foundation with pile ends as bedrock and construction method of sparsely-distributed rigid pile composite foundation
The sparsely-distributed rigid pile composite foundation comprises a plurality of rigid piles, the pile ends of the rigid piles are arranged in the bedrock, the pile tops of the rigid piles abut against a mattress layer, the bedrock comprises the fully-weathered bedrock, the strongly-weathered bedrock, the moderately-weathered bedrock and the slightly-weathered bedrock, and when the pile ends of the rigid piles are located in the moderately-weathered bedrock or the slightly-weathered bedrock, the pile ends of the rigid piles abut against the mattress layer. A weakening cushion layer of which the compactness is consistent with that of the fully-weathered or strongly-weathered bedrock is arranged below the pile end of the rigid pile; the weakening cushion layer is arranged on the moderately-weathered or slightly-weathered bed rock part to adjust the deformation amplitude of the rigid piles, so that the deformation amplitude is consistent with the deformation amplitude of complete weathering or strong weathering, the exertion amplitude of the soil bearing capacity between the piles is improved, the deformation coordination condition of the composite foundation is met, differential settlement between the rigid piles is reduced, and the construction quality is improved. The rigid piles are sparsely distributed under the foundation to control the deformation control value of the building, so that the purposes of improving the bearing capacity of the foundation and controlling the deformation of the foundation are achieved.
本发明公开了一种桩端为基岩的疏布刚性桩复合地基，包括桩端设置在基岩内、桩顶与褥垫层抵靠的若干刚性桩，所述基岩包括全风化基岩、强风化基岩、中风化基岩和微风化基岩，当所述刚性桩的桩端位于中风化或微风化基岩中时，所述刚性桩的桩端下设置密实度与全风化或强风化基岩密实度一致的弱化垫层；本发明通过在中风化或微风化基岩部分设置弱化垫层调节刚性桩的变形幅度，使之与全风化或者强风化的变形幅度一致，提高桩间土承载能力的发挥幅度，满足复合地基变形协调条件，降低各刚性桩间的不均匀沉降，通过基础下疏布刚性桩控制建筑物的控制变形值，达到既提高地基承载力，又控制地基变形的目的。
Sparsely-distributed rigid pile composite foundation with pile ends as bedrock and construction method of sparsely-distributed rigid pile composite foundation
一种桩端为基岩的疏布刚性桩复合地基及其施工方法
NIE QINGKE (author) / WANG GUOHUI (author) / WANG CHUIDONG (author) / LI YOUDONG (author) / HU JIANMIN (author) / SHANG WEIDONG (author) / CHEN JUNHONG (author) / WANG QINGJUN (author) / WANG XIAOREN (author) / ZHANG SHUYING (author)
2022-11-01
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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