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A platform for research: civil engineering, architecture and urbanism
Foundation pit supporting structure under narrow space condition and construction method thereof
The invention discloses a foundation pit supporting structure under a narrow space condition and a construction method thereof. The construction method comprises the following steps: constructing a first row of three-shaft stirring piles under the narrow space condition; after the first row of three-axis stirring piles reach the first preset strength, a second row of three-axis stirring piles are constructed on one side of the first row of three-axis stirring piles in an overlapped mode to form overlapped three-axis stirring piles; and after the superposed three-axis stirring pile reaches the second preset strength, a rotary excavating cast-in-place pile is constructed along the center of the superposed three-axis stirring pile, so that the rotary excavating cast-in-place pile is arranged in the superposed three-axis stirring pile to form a foundation pit supporting structure. The construction quality can be guaranteed under the narrow space condition, and the construction cost can be reduced.
本发明公开一种狭小空间条件下基坑支护结构及其施工方法，该施工方法包括：在狭小空间条件下施工第一排三轴搅拌桩；待第一排三轴搅拌桩达到第一预定强度后，在第一排三轴搅拌桩的一侧叠合施工第二排三轴搅拌桩形成叠合三轴搅拌桩；待叠合三轴搅拌桩达到第二预定强度后，沿叠合三轴搅拌桩的中心施工旋挖灌注桩，使旋挖灌注桩内置于叠合三轴搅拌桩形成基坑支护结构。本发明能够在狭小空间条件下既能保证施工质量，又能降低施工成本。
Foundation pit supporting structure under narrow space condition and construction method thereof
The invention discloses a foundation pit supporting structure under a narrow space condition and a construction method thereof. The construction method comprises the following steps: constructing a first row of three-shaft stirring piles under the narrow space condition; after the first row of three-axis stirring piles reach the first preset strength, a second row of three-axis stirring piles are constructed on one side of the first row of three-axis stirring piles in an overlapped mode to form overlapped three-axis stirring piles; and after the superposed three-axis stirring pile reaches the second preset strength, a rotary excavating cast-in-place pile is constructed along the center of the superposed three-axis stirring pile, so that the rotary excavating cast-in-place pile is arranged in the superposed three-axis stirring pile to form a foundation pit supporting structure. The construction quality can be guaranteed under the narrow space condition, and the construction cost can be reduced.
本发明公开一种狭小空间条件下基坑支护结构及其施工方法，该施工方法包括：在狭小空间条件下施工第一排三轴搅拌桩；待第一排三轴搅拌桩达到第一预定强度后，在第一排三轴搅拌桩的一侧叠合施工第二排三轴搅拌桩形成叠合三轴搅拌桩；待叠合三轴搅拌桩达到第二预定强度后，沿叠合三轴搅拌桩的中心施工旋挖灌注桩，使旋挖灌注桩内置于叠合三轴搅拌桩形成基坑支护结构。本发明能够在狭小空间条件下既能保证施工质量，又能降低施工成本。
Foundation pit supporting structure under narrow space condition and construction method thereof
一种狭小空间条件下基坑支护结构及其施工方法
WENG ZIWEI (author) / LIAN YONGLIANG (author) / DONG LIYIN (author) / YUAN CHAO (author)
2023-01-13
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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