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Construction method for large-diameter long-spiral full-casing press-grouting pile in sludge stratum
The invention relates to the technical field of building construction, and discloses a construction method for a large-diameter long-spiral full-casing press-grouting pile in a sludge stratum. The construction method comprises the following steps of (1) hole forming construction of the long-spiral full-casing press-grouting pile; (2) manufacturing of a reinforcement cage, and mounting constructionof a vibration hammer and a rib feeding rod; and (3) construction of the long-spiral full-casing press-grouting pile. According to the construction method, the large-diameter support pile in the sludge stratum uses a long-spiral full-casing press-grouting pile process for pipe forming, soil is cut through rapid rotation of a long-spiral drill rod, slurry pollution is avoided in the pile forming process, and meanwhile, through full-casing construction, the pile forming diameter can be effectively guaranteed in the sludge stratum, necking or hole collapse is prevented, and the construction method has the characteristics of being environmentally-friendly, reliable in quality, high in work efficiency, economical and reasonable.
本发明涉及建筑施工技术领域，本发明公开了一种淤泥地层大直径长螺旋全套管压灌桩施工方法，包括以下步骤；步骤(1)、长螺旋全套管压灌桩成孔施工；步骤(2)、钢筋笼制作、震动锤及送筋杆安装施工；步骤(3)、长螺旋全套管压灌桩施工。本发明在淤泥地层大直径支护桩，采用长螺旋全套管压灌桩工艺成桩，通过长螺旋钻杆快速旋转切割土体，成桩过程中不产生泥浆污染，同时通过全套管施工，能够在淤泥地层有效保证成桩桩径，防止缩颈或塌孔，具有绿色环保、质量可靠、工效高、经济合理特点。
Construction method for large-diameter long-spiral full-casing press-grouting pile in sludge stratum
The invention relates to the technical field of building construction, and discloses a construction method for a large-diameter long-spiral full-casing press-grouting pile in a sludge stratum. The construction method comprises the following steps of (1) hole forming construction of the long-spiral full-casing press-grouting pile; (2) manufacturing of a reinforcement cage, and mounting constructionof a vibration hammer and a rib feeding rod; and (3) construction of the long-spiral full-casing press-grouting pile. According to the construction method, the large-diameter support pile in the sludge stratum uses a long-spiral full-casing press-grouting pile process for pipe forming, soil is cut through rapid rotation of a long-spiral drill rod, slurry pollution is avoided in the pile forming process, and meanwhile, through full-casing construction, the pile forming diameter can be effectively guaranteed in the sludge stratum, necking or hole collapse is prevented, and the construction method has the characteristics of being environmentally-friendly, reliable in quality, high in work efficiency, economical and reasonable.
本发明涉及建筑施工技术领域，本发明公开了一种淤泥地层大直径长螺旋全套管压灌桩施工方法，包括以下步骤；步骤(1)、长螺旋全套管压灌桩成孔施工；步骤(2)、钢筋笼制作、震动锤及送筋杆安装施工；步骤(3)、长螺旋全套管压灌桩施工。本发明在淤泥地层大直径支护桩，采用长螺旋全套管压灌桩工艺成桩，通过长螺旋钻杆快速旋转切割土体，成桩过程中不产生泥浆污染，同时通过全套管施工，能够在淤泥地层有效保证成桩桩径，防止缩颈或塌孔，具有绿色环保、质量可靠、工效高、经济合理特点。
Construction method for large-diameter long-spiral full-casing press-grouting pile in sludge stratum
一种淤泥地层大直径长螺旋全套管压灌桩施工方法
HUANG JIAWEI (author) / ZHANG LINING (author)
2021-02-02
Patent
Electronic Resource
Chinese
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