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Combined supporting method for ultra-deep foundation pit in soft soil area
The combined supporting method for the ultra-deep foundation pit in the soft soil area comprises the steps that the closed type water stop system is constructed; earth is excavated for the first time, and a first open type working platform is constructed; constructing a pile-column integrated structure; construction of guide precast piles; producing and manufacturing the prefabricated slab; inserting the first prefabricated slab for construction; a first plane supporting system is arranged in secondary earth cutting; second prefabricated slab insertion construction is conducted through third-time earth cutting, and a second plane supporting system is arranged at the height position of the top of a second prefabricated slab; a third plane supporting system is arranged for fourth-time earth cutting; third prefabricated slab insertion and construction of a second open type working platform are conducted through fifth-time earth cutting, and then a fourth plane supporting system is arranged at the height position of the top of a third prefabricated slab; and after earth is excavated to the middle position of the third prefabricated slab for the sixth time, construction of a bottom raft is conducted, and excavation operation of the ultra-deep foundation pit combined support in the soft soil area is completed. According to the method, the supporting process is simplified, the number of tedious dismantling components is reduced, the construction process is optimized, and the work efficiency is improved.
软土地区超深基坑组合支撑方法包括封闭型止水系统施工；一次挖土并进行第一个开口型工作平台施工；桩柱一体化结构施工；导向预制桩的施工；预制板生产制作；第一预制板插设施工；二次挖土设置第一道平面支撑系统；三次挖土进行第二预制板插设施工，并在第二预制板顶部的高度处设置第二道平面支撑系统；四次挖土设置第三道平面支撑系统；五次挖土进行第三预制板插设以及第二个开口型工作平台的施工，然后在第三预制板顶部的高度处设置第四道平面支撑系统；六次挖土至第三预制板中部的位置后进行底部筏板的施工，完成软土地区超深基坑组合支撑的开挖作业。本发明简化了支护流程，降低了繁琐的拆除构件的数量，优化了施工流程，提升了工效。
Combined supporting method for ultra-deep foundation pit in soft soil area
The combined supporting method for the ultra-deep foundation pit in the soft soil area comprises the steps that the closed type water stop system is constructed; earth is excavated for the first time, and a first open type working platform is constructed; constructing a pile-column integrated structure; construction of guide precast piles; producing and manufacturing the prefabricated slab; inserting the first prefabricated slab for construction; a first plane supporting system is arranged in secondary earth cutting; second prefabricated slab insertion construction is conducted through third-time earth cutting, and a second plane supporting system is arranged at the height position of the top of a second prefabricated slab; a third plane supporting system is arranged for fourth-time earth cutting; third prefabricated slab insertion and construction of a second open type working platform are conducted through fifth-time earth cutting, and then a fourth plane supporting system is arranged at the height position of the top of a third prefabricated slab; and after earth is excavated to the middle position of the third prefabricated slab for the sixth time, construction of a bottom raft is conducted, and excavation operation of the ultra-deep foundation pit combined support in the soft soil area is completed. According to the method, the supporting process is simplified, the number of tedious dismantling components is reduced, the construction process is optimized, and the work efficiency is improved.
软土地区超深基坑组合支撑方法包括封闭型止水系统施工；一次挖土并进行第一个开口型工作平台施工；桩柱一体化结构施工；导向预制桩的施工；预制板生产制作；第一预制板插设施工；二次挖土设置第一道平面支撑系统；三次挖土进行第二预制板插设施工，并在第二预制板顶部的高度处设置第二道平面支撑系统；四次挖土设置第三道平面支撑系统；五次挖土进行第三预制板插设以及第二个开口型工作平台的施工，然后在第三预制板顶部的高度处设置第四道平面支撑系统；六次挖土至第三预制板中部的位置后进行底部筏板的施工，完成软土地区超深基坑组合支撑的开挖作业。本发明简化了支护流程，降低了繁琐的拆除构件的数量，优化了施工流程，提升了工效。
Combined supporting method for ultra-deep foundation pit in soft soil area
软土地区超深基坑组合支撑方法
WANG GUANGTAO (author) / NI JIAN (author) / LI GUANG (author) / SONG ZHEN (author) / LEE SANG JIN (author)
2023-08-29
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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