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A platform for research: civil engineering, architecture and urbanism
Construction method of water-rich alluvial stratum deep foundation pit support structure
The invention provides a construction method of a water-rich alluvial stratum deep foundation pit support structure, which comprises the following steps: a stirring pile construction step: constructing a plurality of stirring piles at a preset position of a foundation pit, each stirring pile being annularly arranged; a cast-in-place pile construction step, specifically, a plurality of cast-in-place piles are constructed on the inner sides of the stirring piles, and the cast-in-place piles are annularly arranged; an inserting step: inserting a steel pipe pile into each mixing pile; and in the supporting step, the foundation pit is excavated layer by layer, and the foundation pit is supported till the bottom of the foundation pit is excavated. According to the method, the multiple stirring piles and the multiple cast-in-place piles are constructed at the preset positions of the foundation pit, the steel pipe piles are inserted into the stirring piles, the foundation pit is excavated and supported layer by layer, the construction technology is simple and convenient to implement, the construction period can be shortened, the cost can be reduced, the vertical supporting mode is adopted, the situation that the depth of the foundation pit is large, and no working face is used for slope making is met, and the construction efficiency is improved. The construction difficulty is reduced, the construction period is shortened, and the influence of the foundation pit and surrounding buildings is reduced.
本发明提供了一种富水冲积地层深基坑围护结构的施工方法，该方法包括：搅拌桩施工步骤，在基坑的预设位置处施工多个搅拌桩，各搅拌桩呈环形设置；灌注桩施工步骤，在各搅拌桩的内侧施工多个灌注桩，各灌注桩呈环形设置；插设步骤，向每个搅拌桩内均插设钢管桩；支护步骤，逐层对基坑进行开挖，并对基坑进行支护，直至开挖至基坑的底部。本发明中，在基坑的预设位置处施工多个搅拌桩和多个灌注桩，向每个搅拌桩内均插设钢管桩，逐层对基坑进行开挖并支护，施工工艺简便，便于实施，并能节约工期和成本，采用垂直支护形式，满足了基坑深度较大却无工作面进行放坡的情况，降低了施工难度，缩短了施工工期，减少了基坑及周边建筑物的影响。
Construction method of water-rich alluvial stratum deep foundation pit support structure
The invention provides a construction method of a water-rich alluvial stratum deep foundation pit support structure, which comprises the following steps: a stirring pile construction step: constructing a plurality of stirring piles at a preset position of a foundation pit, each stirring pile being annularly arranged; a cast-in-place pile construction step, specifically, a plurality of cast-in-place piles are constructed on the inner sides of the stirring piles, and the cast-in-place piles are annularly arranged; an inserting step: inserting a steel pipe pile into each mixing pile; and in the supporting step, the foundation pit is excavated layer by layer, and the foundation pit is supported till the bottom of the foundation pit is excavated. According to the method, the multiple stirring piles and the multiple cast-in-place piles are constructed at the preset positions of the foundation pit, the steel pipe piles are inserted into the stirring piles, the foundation pit is excavated and supported layer by layer, the construction technology is simple and convenient to implement, the construction period can be shortened, the cost can be reduced, the vertical supporting mode is adopted, the situation that the depth of the foundation pit is large, and no working face is used for slope making is met, and the construction efficiency is improved. The construction difficulty is reduced, the construction period is shortened, and the influence of the foundation pit and surrounding buildings is reduced.
本发明提供了一种富水冲积地层深基坑围护结构的施工方法，该方法包括：搅拌桩施工步骤，在基坑的预设位置处施工多个搅拌桩，各搅拌桩呈环形设置；灌注桩施工步骤，在各搅拌桩的内侧施工多个灌注桩，各灌注桩呈环形设置；插设步骤，向每个搅拌桩内均插设钢管桩；支护步骤，逐层对基坑进行开挖，并对基坑进行支护，直至开挖至基坑的底部。本发明中，在基坑的预设位置处施工多个搅拌桩和多个灌注桩，向每个搅拌桩内均插设钢管桩，逐层对基坑进行开挖并支护，施工工艺简便，便于实施，并能节约工期和成本，采用垂直支护形式，满足了基坑深度较大却无工作面进行放坡的情况，降低了施工难度，缩短了施工工期，减少了基坑及周边建筑物的影响。
Construction method of water-rich alluvial stratum deep foundation pit support structure
富水冲积地层深基坑围护结构的施工方法
OH DAE-SEONG (author) / YANG JIWEI (author) / WANG DIANTAO (author) / HE JIAN (author) / QIAN JUAN (author) / LIANG YI (author)
2022-12-06
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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