A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Deep silt soil layer prefabricated tubular pile skip-piling construction method
The invention discloses a deep silt soil layer prefabricated tubular pile skip-piling construction method. The deep silt soil layer prefabricated tubular pile skip-piling construction method comprises the following steps that after preparation work is finished, prefabricated tubular pile skip-piling construction is started, and interval piling adopts segmented construction which is divided into primary piling construction and secondary piling construction. Prefabricated tubular piles are constructed through an interval skip-piling method, construction is carried out every other tubular pile, and secondary tubular pile construction is carried out on the tubular piles skipped at intervals according to the same sequence after most of ultra-static pore water pressure generated by the soil squeezing effect is dissipated; meanwhile, anti-squeezing grooves are formed in the edges and the interiors of all construction subareas, displacement of a soil body in the deep position of the ground surface is separated, and the range outside a groove is not affected; and meanwhile, underground water within a certain depth range can be drained, and the excess pore water pressure is not increased. The soil squeezing effect of the static pressure pile of soft and hard interaction layered soil is effectively weakened, and the finished tubular piles do not deflect.
本发明公开了一种深厚淤泥土层预制管桩跳打施工方法，准备工作完成后开始预制管桩跳打施工，间隔打桩采用分段施工，分为一序打桩施工和二序打桩施工。本发明预制管桩采用间隔跳打法施工，施工时间隔一根管桩进行施工，间隔跳过的管桩在因挤土作用产生的超静孔隙水压力大部分消散后按同样的顺序进行二序管桩施工，同时在各施工分区边上及内部设置防挤槽，使地表面深处的土体位移被其隔断，不致影响到沟槽以外的范围，同时还能疏排一定深度范围内的地下水，使超孔隙水压力不致升高，本发明有效减弱了软硬交互成层土静压桩挤土效应，使得成品管桩未发生偏斜。
Deep silt soil layer prefabricated tubular pile skip-piling construction method
The invention discloses a deep silt soil layer prefabricated tubular pile skip-piling construction method. The deep silt soil layer prefabricated tubular pile skip-piling construction method comprises the following steps that after preparation work is finished, prefabricated tubular pile skip-piling construction is started, and interval piling adopts segmented construction which is divided into primary piling construction and secondary piling construction. Prefabricated tubular piles are constructed through an interval skip-piling method, construction is carried out every other tubular pile, and secondary tubular pile construction is carried out on the tubular piles skipped at intervals according to the same sequence after most of ultra-static pore water pressure generated by the soil squeezing effect is dissipated; meanwhile, anti-squeezing grooves are formed in the edges and the interiors of all construction subareas, displacement of a soil body in the deep position of the ground surface is separated, and the range outside a groove is not affected; and meanwhile, underground water within a certain depth range can be drained, and the excess pore water pressure is not increased. The soil squeezing effect of the static pressure pile of soft and hard interaction layered soil is effectively weakened, and the finished tubular piles do not deflect.
本发明公开了一种深厚淤泥土层预制管桩跳打施工方法，准备工作完成后开始预制管桩跳打施工，间隔打桩采用分段施工，分为一序打桩施工和二序打桩施工。本发明预制管桩采用间隔跳打法施工，施工时间隔一根管桩进行施工，间隔跳过的管桩在因挤土作用产生的超静孔隙水压力大部分消散后按同样的顺序进行二序管桩施工，同时在各施工分区边上及内部设置防挤槽，使地表面深处的土体位移被其隔断，不致影响到沟槽以外的范围，同时还能疏排一定深度范围内的地下水，使超孔隙水压力不致升高，本发明有效减弱了软硬交互成层土静压桩挤土效应，使得成品管桩未发生偏斜。
Deep silt soil layer prefabricated tubular pile skip-piling construction method
一种深厚淤泥土层预制管桩跳打施工方法
ZHANG GUANGHUI (author) / GONG BINGWEN (author) / MA GAOWEI (author) / WANG ZHIYU (author) / LU ERQIAN (author) / QIN LANRUI (author) / JI MINGHAO (author)
2021-10-12
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
| European Patent Office | 2023
Prefabricated tubular pile construction robot and tubular pile pressing method thereof
| European Patent Office | 2023
| European Patent Office | 2023