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A platform for research: civil engineering, architecture and urbanism
Steel pipe-concrete branch pile composite pile foundation structure and construction method thereof
The invention discloses a steel pipe-concrete branch pile composite pile foundation structure and a construction method thereof. The composite pile foundation structure comprises a plurality of concrete branch piles and open type steel pipes fixed in the concrete branch piles. The open type steel pipe comprises a steel pipe body, and a plurality of extruding and flaring openings are formed in the peripheral side of the side wall of the steel pipe body. The open type steel pipe can reduce the influence of the soil squeezing effect on the hole wall and the adjacent pile foundation, hole wall collapse is reduced, the applicability of the pile foundation in a soft foundation is improved, the construction efficiency is remarkably improved, damage of the soil squeezing effect to a newly formed concrete pile body is reduced, and hidden diseases of the pile foundation are avoided. According to the steel pipe-concrete branch pile composite pile foundation, the common bearing performance of the composite pile foundation and the pile forming quality of the internal rigid piles can be greatly improved, the effect of the branch piles can be better played, the application range of the branch piles can be remarkably widened, and a new technical method is provided for treatment of soft foundations.
本发明公开了一种钢管‑混凝土支盘桩复合桩基结构及其施工方法，该复合桩基结构包括多支混凝土支盘桩以及固定在多支混凝土支盘桩内部的开口式钢管；开口式钢管包括钢管本体，钢管本体的侧壁周侧开设有多个挤扩口；开口式钢管可以减低挤土效应对孔壁以及相邻桩基的影响，减小孔壁塌陷，提高桩基在软弱地基的适用性，而且显著提高施工效率，减小挤土效应对新形成的混凝土桩身的破坏，避免桩基的隐蔽性病害。本发明提供的钢管‑混凝土支盘桩复合桩基，不仅能大幅提升复合桩基的共同承载性能以及内部刚性桩的成桩质量，更好的发挥支盘桩的效果，并可以显著提高支盘桩的适用范围，为软弱地基的处理提供新的技术方法。
Steel pipe-concrete branch pile composite pile foundation structure and construction method thereof
The invention discloses a steel pipe-concrete branch pile composite pile foundation structure and a construction method thereof. The composite pile foundation structure comprises a plurality of concrete branch piles and open type steel pipes fixed in the concrete branch piles. The open type steel pipe comprises a steel pipe body, and a plurality of extruding and flaring openings are formed in the peripheral side of the side wall of the steel pipe body. The open type steel pipe can reduce the influence of the soil squeezing effect on the hole wall and the adjacent pile foundation, hole wall collapse is reduced, the applicability of the pile foundation in a soft foundation is improved, the construction efficiency is remarkably improved, damage of the soil squeezing effect to a newly formed concrete pile body is reduced, and hidden diseases of the pile foundation are avoided. According to the steel pipe-concrete branch pile composite pile foundation, the common bearing performance of the composite pile foundation and the pile forming quality of the internal rigid piles can be greatly improved, the effect of the branch piles can be better played, the application range of the branch piles can be remarkably widened, and a new technical method is provided for treatment of soft foundations.
本发明公开了一种钢管‑混凝土支盘桩复合桩基结构及其施工方法，该复合桩基结构包括多支混凝土支盘桩以及固定在多支混凝土支盘桩内部的开口式钢管；开口式钢管包括钢管本体，钢管本体的侧壁周侧开设有多个挤扩口；开口式钢管可以减低挤土效应对孔壁以及相邻桩基的影响，减小孔壁塌陷，提高桩基在软弱地基的适用性，而且显著提高施工效率，减小挤土效应对新形成的混凝土桩身的破坏，避免桩基的隐蔽性病害。本发明提供的钢管‑混凝土支盘桩复合桩基，不仅能大幅提升复合桩基的共同承载性能以及内部刚性桩的成桩质量，更好的发挥支盘桩的效果，并可以显著提高支盘桩的适用范围，为软弱地基的处理提供新的技术方法。
Steel pipe-concrete branch pile composite pile foundation structure and construction method thereof
一种钢管-混凝土支盘桩复合桩基结构及其施工方法
SHEN DAOXU (author) / HAN HUI (author) / FENG JIN (author) / WU WANLIN (author) / LIU DENGMING (author) / ZHONG LANG (author) / CAO QIAN (author) / LI JIANFENG (author) / CHEN QINGSHU (author)
2022-08-26
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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