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Construction method of large-diameter steel pipe pile and Larsen steel sheet pile combined supporting structure
The invention belongs to the technical field of foundation pit supporting construction, and relates to a construction method of a large-diameter steel pipe pile and Larsen steel sheet pile combined supporting structure, the problems of shaking and even falling caused by a hook hanging mode are solved through a buckle of an elevation limiting leveling instrument, a first water stop lock catch and a second water stop lock catch are tightly connected in an inserted mode, and the construction efficiency is improved. Loosening and even separation between the steel sheet piles and the large-diameter steel pipe piles are prevented, pile following of the steel sheet piles and piling inclination and piling blocking of the large-diameter steel pipe piles under a sand soil layer or a lithologic stratum are effectively limited, the overall stability and the water stopping effect of the combined supporting structure are improved, cyclic utilization of the supporting structure can be achieved, and carbon neutralization and carbon peak reaching are assisted. The whole construction process is simple and convenient to operate, the problem that the height difference of the large-diameter steel pipe pile and the Larsen steel sheet pile does not meet the design requirement due to the pile following phenomenon is solved, the perpendicularity of the pile during piling is guaranteed, the piling blocking condition is avoided, the construction efficiency and quality of the pile are improved, and manpower, material resources and financial resources are saved.
本发明属于基坑支护施工技术领域，涉及一种大直径钢管桩与拉森钢板桩组合支护结构的施工方法，通过标高限位水平尺的卡扣解决采用挂钩悬挂的方式产生的晃动甚至掉落的问题，第一止水锁扣和第二止水锁扣之间插接紧密，防止两者之间出现松动甚至脱离，有效限制了砂土层或岩性地层下钢板桩的跟桩及大直径钢管桩的打桩倾斜和打桩受阻，提升了组合支护结构的整体稳定性和止水效果能实现支护结构的循环利用，助力碳中和与碳达峰；其整体施工过程简单，便于操作，解决了因“跟桩现象”导致的大直径钢管桩和拉森钢板桩高差不符合设计要求的问题，保证了打桩时桩的垂直度，避免了打桩受阻的情况，提高了桩的施工效率和质量，节约了人力、物力、财力。
Construction method of large-diameter steel pipe pile and Larsen steel sheet pile combined supporting structure
The invention belongs to the technical field of foundation pit supporting construction, and relates to a construction method of a large-diameter steel pipe pile and Larsen steel sheet pile combined supporting structure, the problems of shaking and even falling caused by a hook hanging mode are solved through a buckle of an elevation limiting leveling instrument, a first water stop lock catch and a second water stop lock catch are tightly connected in an inserted mode, and the construction efficiency is improved. Loosening and even separation between the steel sheet piles and the large-diameter steel pipe piles are prevented, pile following of the steel sheet piles and piling inclination and piling blocking of the large-diameter steel pipe piles under a sand soil layer or a lithologic stratum are effectively limited, the overall stability and the water stopping effect of the combined supporting structure are improved, cyclic utilization of the supporting structure can be achieved, and carbon neutralization and carbon peak reaching are assisted. The whole construction process is simple and convenient to operate, the problem that the height difference of the large-diameter steel pipe pile and the Larsen steel sheet pile does not meet the design requirement due to the pile following phenomenon is solved, the perpendicularity of the pile during piling is guaranteed, the piling blocking condition is avoided, the construction efficiency and quality of the pile are improved, and manpower, material resources and financial resources are saved.
本发明属于基坑支护施工技术领域，涉及一种大直径钢管桩与拉森钢板桩组合支护结构的施工方法，通过标高限位水平尺的卡扣解决采用挂钩悬挂的方式产生的晃动甚至掉落的问题，第一止水锁扣和第二止水锁扣之间插接紧密，防止两者之间出现松动甚至脱离，有效限制了砂土层或岩性地层下钢板桩的跟桩及大直径钢管桩的打桩倾斜和打桩受阻，提升了组合支护结构的整体稳定性和止水效果能实现支护结构的循环利用，助力碳中和与碳达峰；其整体施工过程简单，便于操作，解决了因“跟桩现象”导致的大直径钢管桩和拉森钢板桩高差不符合设计要求的问题，保证了打桩时桩的垂直度，避免了打桩受阻的情况，提高了桩的施工效率和质量，节约了人力、物力、财力。
Construction method of large-diameter steel pipe pile and Larsen steel sheet pile combined supporting structure
一种大直径钢管桩与拉森钢板桩组合支护结构的施工方法
ZHANG CHANGTAI (author) / BAI XIAOYU (author) / ZHANG QIJUN (author) / YAN NAN (author) / LIN XIWEI (author) / ZHANG MINGYI (author) / ZHANG WENGANG (author) / MI JINWEI (author) / TU BINGXIONG (author) / WANG YONGHONG (author)
2022-05-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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