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A platform for research: civil engineering, architecture and urbanism
Construction method for full pile casing of underwater cast-in-situ bored pile
The invention discloses a construction method for a full pile casing of an underwater cast-in-situ bored pile, and relates to the technical field of pile foundation construction. The method includes the steps that surveying and setting out are carried out, an auxiliary pile is arranged, a total station is used to release the center of a pile foundation, a cross pile is used to fix a position, a level gauge is used to measure the top elevation of the pile casing, a drilling depth is determined, and an error is controlled within 5mm; a pile casing is manufactured and lowered through a vibratory hammer, soil in the pile casing is removed through a rotary drilling machine after the pile casing sinks to the designed position, and whether the hole depth, the hole diameter and the perpendicularity meet design requirements or not is checked through a hole detector after drilling; and a reinforcement cage is hoisted, a guide pipe is mounted, the reinforcement cage is hoisted by adopting a crane, and concrete is poured. The construction method for the full pile casing of the underwater cast-in-situ bored pile solves the problems of riverbed orifice instability collapse, time-consuming and labor-consuming reinforcement cage lowering, hole collapse and the like, and is suitable for pile foundation construction under the geological conditions of high water level and easy hole collapse.
本发明公开了一种水中钻孔灌注桩全护筒施工方法，涉及桩基础施工技术领域，所述方法包括：测量放线设辅桩，采用全站仪放出桩基中心，用十字桩固定位置，采用水准仪测定护筒顶高程，确定钻孔深度，控制误差在5mm以内；护筒制作并采用振动锤下护筒，护筒下沉至设计位置后采用旋转钻机清除护筒内的泥土，钻孔后采用检孔器检查孔深、孔径及垂直度是否符合设计要求；吊放钢筋笼，安装导管，采用吊车对钢筋笼进行吊放，灌注混凝土。采用本发明的方法解决了河床孔口失稳坍塌、钢筋笼下放费时费力、塌孔等问题，适用于水位较高，易塌孔的地质条件的桩基础施工。
Construction method for full pile casing of underwater cast-in-situ bored pile
The invention discloses a construction method for a full pile casing of an underwater cast-in-situ bored pile, and relates to the technical field of pile foundation construction. The method includes the steps that surveying and setting out are carried out, an auxiliary pile is arranged, a total station is used to release the center of a pile foundation, a cross pile is used to fix a position, a level gauge is used to measure the top elevation of the pile casing, a drilling depth is determined, and an error is controlled within 5mm; a pile casing is manufactured and lowered through a vibratory hammer, soil in the pile casing is removed through a rotary drilling machine after the pile casing sinks to the designed position, and whether the hole depth, the hole diameter and the perpendicularity meet design requirements or not is checked through a hole detector after drilling; and a reinforcement cage is hoisted, a guide pipe is mounted, the reinforcement cage is hoisted by adopting a crane, and concrete is poured. The construction method for the full pile casing of the underwater cast-in-situ bored pile solves the problems of riverbed orifice instability collapse, time-consuming and labor-consuming reinforcement cage lowering, hole collapse and the like, and is suitable for pile foundation construction under the geological conditions of high water level and easy hole collapse.
本发明公开了一种水中钻孔灌注桩全护筒施工方法，涉及桩基础施工技术领域，所述方法包括：测量放线设辅桩，采用全站仪放出桩基中心，用十字桩固定位置，采用水准仪测定护筒顶高程，确定钻孔深度，控制误差在5mm以内；护筒制作并采用振动锤下护筒，护筒下沉至设计位置后采用旋转钻机清除护筒内的泥土，钻孔后采用检孔器检查孔深、孔径及垂直度是否符合设计要求；吊放钢筋笼，安装导管，采用吊车对钢筋笼进行吊放，灌注混凝土。采用本发明的方法解决了河床孔口失稳坍塌、钢筋笼下放费时费力、塌孔等问题，适用于水位较高，易塌孔的地质条件的桩基础施工。
Construction method for full pile casing of underwater cast-in-situ bored pile
一种水中钻孔灌注桩全护筒施工方法
LU HAIFENG (author) / ZHANG SHENGRONG (author) / LI YUAN (author) / LI FUXIANG (author) / ZHANG ZHENGLEI (author) / ZHANG WEILIANG (author) / PU XIAOPING (author) / REN FEI (author) / WU XUHUI (author) / WU GUIRONG (author)
2021-08-27
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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