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Special-shaped row pile support and foundation excavation construction method
The invention discloses a special-shaped row pile support and foundation excavation construction method. The special-shaped row pile support and foundation excavation construction method comprises thefollowing steps of driving two sections of row piles which are arranged front and back at intervals from one side of the long edge of a foundation pit to the inner side of the foundation pit, drivingtop beams at the tops of a support pile and the two sections of row piles simultaneously to enable the support pile and the two sections of row piles to form a whole, arranging concrete angle bracesat internal corners of the top beams, allowing preset vertical supporting pile to be used as supports for the design positions of the lower parts of the angle braces, after the supporting structure isconstructed, conducting earth excavation and foundation construction on the foundation pit in two stages, reserving undisturbed soil body between the two sections of row piles as a supporting structure during excavation of undisturbed soil body outside the two sections of row piles, and after earth excavation outside the two sections of row piles is completed and foundation structure constructionis completed, excavating the undisturbed soil body between the two sections of row piles, constructing a foundation structure, and reserving post-cast strips at the bottoms of the foundation pits onthe two sides of the reserved undisturbed soil body. By means of the method, it can be guaranteed that the soil body is stable in the excavation process, and the construction cost can be effectively reduced.
本发明公开了异形排桩支护及基础开挖施工方法,包括分别从基坑长边的一侧开始向基坑内侧打设前后间隔设置的两段排桩,在支护桩及两段排桩桩顶同时打设冠梁,使支护桩和两段排桩形成整体,在冠梁阴角部位设置混凝土角撑,角撑下部设计位置由预先设置的竖托桩作为支撑。支护结构施工完毕后,分两个阶段对基坑进行土方开挖和基础施工,通过保留两段排桩之间的原状土体作为两段排桩之外的原状土体开挖时的支撑结构,待两段排桩之外的土方开挖完成且基础结构施工完毕后,再对两段排桩之间的原状土体进行开挖及基础结构施工,后浇带留设在预留的原状土体两侧的基坑坑底处。本发明方法既能保证开挖过程中土体稳固,又能有效降低施工成本。
Special-shaped row pile support and foundation excavation construction method
The invention discloses a special-shaped row pile support and foundation excavation construction method. The special-shaped row pile support and foundation excavation construction method comprises thefollowing steps of driving two sections of row piles which are arranged front and back at intervals from one side of the long edge of a foundation pit to the inner side of the foundation pit, drivingtop beams at the tops of a support pile and the two sections of row piles simultaneously to enable the support pile and the two sections of row piles to form a whole, arranging concrete angle bracesat internal corners of the top beams, allowing preset vertical supporting pile to be used as supports for the design positions of the lower parts of the angle braces, after the supporting structure isconstructed, conducting earth excavation and foundation construction on the foundation pit in two stages, reserving undisturbed soil body between the two sections of row piles as a supporting structure during excavation of undisturbed soil body outside the two sections of row piles, and after earth excavation outside the two sections of row piles is completed and foundation structure constructionis completed, excavating the undisturbed soil body between the two sections of row piles, constructing a foundation structure, and reserving post-cast strips at the bottoms of the foundation pits onthe two sides of the reserved undisturbed soil body. By means of the method, it can be guaranteed that the soil body is stable in the excavation process, and the construction cost can be effectively reduced.
本发明公开了异形排桩支护及基础开挖施工方法,包括分别从基坑长边的一侧开始向基坑内侧打设前后间隔设置的两段排桩,在支护桩及两段排桩桩顶同时打设冠梁,使支护桩和两段排桩形成整体,在冠梁阴角部位设置混凝土角撑,角撑下部设计位置由预先设置的竖托桩作为支撑。支护结构施工完毕后,分两个阶段对基坑进行土方开挖和基础施工,通过保留两段排桩之间的原状土体作为两段排桩之外的原状土体开挖时的支撑结构,待两段排桩之外的土方开挖完成且基础结构施工完毕后,再对两段排桩之间的原状土体进行开挖及基础结构施工,后浇带留设在预留的原状土体两侧的基坑坑底处。本发明方法既能保证开挖过程中土体稳固,又能有效降低施工成本。
Special-shaped row pile support and foundation excavation construction method
异形排桩支护及基础开挖施工方法
DIAO XIAOXIANG (author) / FENG YUN (author) / HUA ZEHAO (author) / HAN LEI (author) / DU ZHUOYANG (author)
2021-02-19
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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