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A platform for research: civil engineering, architecture and urbanism
Full pile casing cast-in-situ bored pile construction method
The embodiment of the invention discloses a construction method for a full pile casing cast-in-situ bored pile. Comprising the following steps of slurry preparation, full pile casing positioning and burying, drilling machine in-place, drilling and hole forming, reinforcement cage manufacturing, steel bar installation, guide pipe arrangement, secondary hole cleaning, concrete pouring, full pile casing lifting, concrete curing and empty hole backfilling, slurry and sludge outward transportation and foundation pile detection. In the step of full pile casing positioning and burying, a pile casing is an all-steel pile casing, before the pile casing is buried, four positioning piles are arranged around a pile hole, the positioning piles are buried in the center of a drill hole, the center of the pile casing coincides with the center of the drill hole, the positioning piles are driven into soil through 16mm reinforcing steel bars, and a vibratory hammer is adopted when the pile casing is buried. According to the construction method disclosed by the invention, the whole pile casing is adopted for follow-up construction in a flow plastic sludge layer, so that the quality of a pile body is ensured.
本发明实施例公开一种全护筒钻孔灌注桩施工方法，包括以下步骤：泥浆制备→全护筒定位下埋→钻机就位→钻进成孔→钢筋笼制作→钢筋安装→设置导管→二次清孔→浇筑混凝土→全护筒提拔→混凝土养护及空孔回填→泥浆及淤泥外运→基桩检测；在全护筒定位下埋步骤中，护筒采用全钢护筒，埋设护筒前，先在桩孔周围设四个定位桩，定位桩埋设在钻孔中心位置，使护筒中心与钻孔中心重合,定位桩用16mm钢筋打入土中，埋设护筒时，采用振动锤。埋设护筒时确保护筒垂直度，本发明在流塑性淤泥层,采用全护筒跟进施工，保证了桩身质量。
Full pile casing cast-in-situ bored pile construction method
The embodiment of the invention discloses a construction method for a full pile casing cast-in-situ bored pile. Comprising the following steps of slurry preparation, full pile casing positioning and burying, drilling machine in-place, drilling and hole forming, reinforcement cage manufacturing, steel bar installation, guide pipe arrangement, secondary hole cleaning, concrete pouring, full pile casing lifting, concrete curing and empty hole backfilling, slurry and sludge outward transportation and foundation pile detection. In the step of full pile casing positioning and burying, a pile casing is an all-steel pile casing, before the pile casing is buried, four positioning piles are arranged around a pile hole, the positioning piles are buried in the center of a drill hole, the center of the pile casing coincides with the center of the drill hole, the positioning piles are driven into soil through 16mm reinforcing steel bars, and a vibratory hammer is adopted when the pile casing is buried. According to the construction method disclosed by the invention, the whole pile casing is adopted for follow-up construction in a flow plastic sludge layer, so that the quality of a pile body is ensured.
本发明实施例公开一种全护筒钻孔灌注桩施工方法，包括以下步骤：泥浆制备→全护筒定位下埋→钻机就位→钻进成孔→钢筋笼制作→钢筋安装→设置导管→二次清孔→浇筑混凝土→全护筒提拔→混凝土养护及空孔回填→泥浆及淤泥外运→基桩检测；在全护筒定位下埋步骤中，护筒采用全钢护筒，埋设护筒前，先在桩孔周围设四个定位桩，定位桩埋设在钻孔中心位置，使护筒中心与钻孔中心重合,定位桩用16mm钢筋打入土中，埋设护筒时，采用振动锤。埋设护筒时确保护筒垂直度，本发明在流塑性淤泥层,采用全护筒跟进施工，保证了桩身质量。
Full pile casing cast-in-situ bored pile construction method
全护筒钻孔灌注桩施工方法
LI ZHIFEN (author) / LEI XIAOMEI (author)
2022-03-01
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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