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A platform for research: civil engineering, architecture and urbanism
Soft stratum squeezing and expanding branch cast-in-place pile construction method
The invention discloses a soft stratum squeezing and expanding branch cast-in-place pile construction method. A squeezing and expanding forming device is adopted for squeezing and expanding forming, the stress mechanism is clear, the vertical bearing capacity is high, the load deformation is small, and the anti-seismic property is good; especially in an anti-floating pile area, empty pile construction is longer, structural piles are designed to be longer, the pile side soil body bearing capacity can be fully exerted through squeezing and expanding branch piles, the pile length is effectively shortened, and the pile end bearing ratio is reduced; and meanwhile, the construction progress of a cast pile foundation is greatly improved, the construction quality of a pile body is obviously improved, and after a field static load test, the bearing capacity of a single pile meets the design requirement.
软弱地层挤扩支盘灌注桩施工方法，采用扩成型装置进行挤扩成型，其受力机理明确，竖向承载能力高，受荷变形小，抗震性能好；特别对抗浮桩区域，空桩施工较长、结构桩设计较长，挤扩支盘桩可以充分发挥桩侧土体承载能力，有效缩短桩长，降低桩端承载比；同时施工浇筑的桩基础施工进度得到大大提高，且桩体施工质量明显提高，经现场静载试验后，单桩承载力满足设计要求。
Soft stratum squeezing and expanding branch cast-in-place pile construction method
The invention discloses a soft stratum squeezing and expanding branch cast-in-place pile construction method. A squeezing and expanding forming device is adopted for squeezing and expanding forming, the stress mechanism is clear, the vertical bearing capacity is high, the load deformation is small, and the anti-seismic property is good; especially in an anti-floating pile area, empty pile construction is longer, structural piles are designed to be longer, the pile side soil body bearing capacity can be fully exerted through squeezing and expanding branch piles, the pile length is effectively shortened, and the pile end bearing ratio is reduced; and meanwhile, the construction progress of a cast pile foundation is greatly improved, the construction quality of a pile body is obviously improved, and after a field static load test, the bearing capacity of a single pile meets the design requirement.
软弱地层挤扩支盘灌注桩施工方法，采用扩成型装置进行挤扩成型，其受力机理明确，竖向承载能力高，受荷变形小，抗震性能好；特别对抗浮桩区域，空桩施工较长、结构桩设计较长，挤扩支盘桩可以充分发挥桩侧土体承载能力，有效缩短桩长，降低桩端承载比；同时施工浇筑的桩基础施工进度得到大大提高，且桩体施工质量明显提高，经现场静载试验后，单桩承载力满足设计要求。
Soft stratum squeezing and expanding branch cast-in-place pile construction method
软弱地层挤扩支盘灌注桩施工方法
CHEN FUBIN (author) / KE HAODONG (author) / JI FAN (author) / WANG YIJUN (author) / CHEN YUBIN (author) / XIAO YOUYIN (author) / MA KUN (author) / WANG YI (author) / JIANG BO (author)
2021-08-31
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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