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Dry sandy gravel stratum cast-in-place pile construction method
The invention discloses a construction method for a cast-in-place pile in a dry sandy gravel stratum. The construction method comprises the following steps that a site is leveled; a long spiral drilling machine is adopted for pre-forming holes, and cement paste is poured in a pressing mode; the method is suitable for the technical field of pile foundation hole forming, effectively combines the advantages of a long spiral and a drilling rig, effectively solves the problem of hole collapse, avoids the influence of mud cake on pile side friction resistance, improves the pile foundation bearing capacity, improves the pile foundation construction quality, reduces the construction cost and improves the construction efficiency. And the construction cost is effectively reduced.
本发明公开了一种干性砂卵石地层灌注桩施工方法，包括以下步骤：场地平整；采用长螺旋钻机预成孔，压灌水泥净浆；采用旋挖钻机二次成孔，下放钢筋笼，灌注混凝土，本发明适用于桩基成孔技术领域，有效的结合了长螺旋和钻挖钻机的优点，有效的解决了塌孔问题，避免了泥皮对桩侧摩阻力的影响，提高了桩基承载力，提升了桩基的施工质量，且有效降低了施工成本。
Dry sandy gravel stratum cast-in-place pile construction method
The invention discloses a construction method for a cast-in-place pile in a dry sandy gravel stratum. The construction method comprises the following steps that a site is leveled; a long spiral drilling machine is adopted for pre-forming holes, and cement paste is poured in a pressing mode; the method is suitable for the technical field of pile foundation hole forming, effectively combines the advantages of a long spiral and a drilling rig, effectively solves the problem of hole collapse, avoids the influence of mud cake on pile side friction resistance, improves the pile foundation bearing capacity, improves the pile foundation construction quality, reduces the construction cost and improves the construction efficiency. And the construction cost is effectively reduced.
本发明公开了一种干性砂卵石地层灌注桩施工方法，包括以下步骤：场地平整；采用长螺旋钻机预成孔，压灌水泥净浆；采用旋挖钻机二次成孔，下放钢筋笼，灌注混凝土，本发明适用于桩基成孔技术领域，有效的结合了长螺旋和钻挖钻机的优点，有效的解决了塌孔问题，避免了泥皮对桩侧摩阻力的影响，提高了桩基承载力，提升了桩基的施工质量，且有效降低了施工成本。
Dry sandy gravel stratum cast-in-place pile construction method
一种干性砂卵石地层灌注桩施工方法
LAN WENHAO (author) / HOU CHANGWEN (author) / WANG YINGPO (author) / GUO FENGFENG (author) / MA ZHUANG (author) / XU XIN (author)
2022-08-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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