A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Construction method for hole forming of bridge pile foundation in karst area
The invention discloses a construction method for hole forming of a bridge pile foundation in a karst area, and the construction method comprises the steps of geological survey, karst cave treatment measure classification, surveying and setting out, trepanning pile casing burying and pile hole construction, different treatment measures are adopted aiming at caves with different characteristics, before punching, an outer pile casing is adopted for protection to a strong weathering surface, and before punching, the outer pile casing is adopted for protection to a strong weathering surface; the soil body at the position of the pile hole is separated from the soil body outside the outer pile casing by the outer pile casing, so that the soil body outside the outer pile casing cannot be influenced during punching, the soil body outside the outer pile casing can be tightly attached to the outer wall of the outer pile casing, and the friction force between the outer pile casing and the soil body is increased. The method has the effect of improving the bearing capacity of the pile foundation subjected to follow-up pouring.
本申请公开了用于岩溶地区桥梁桩基成孔的施工方法，其包括步骤勘测地质、溶洞处理措施分类、测量放线、埋设开孔护筒和桩孔施工，针对不同特点的岩洞采用不同的处理措施，在冲孔之前，先采用外护筒防护至强风化面，外护筒将桩孔位置的土体与外护筒外的土体隔开，所以在冲孔时，不会影响到外护筒外侧的土体，外护筒外侧的土体能够紧贴外护筒的外壁，提高外护筒和土体之间的摩擦力。本申请具有提高后续浇筑完成的桩基的承载力的效果。
Construction method for hole forming of bridge pile foundation in karst area
The invention discloses a construction method for hole forming of a bridge pile foundation in a karst area, and the construction method comprises the steps of geological survey, karst cave treatment measure classification, surveying and setting out, trepanning pile casing burying and pile hole construction, different treatment measures are adopted aiming at caves with different characteristics, before punching, an outer pile casing is adopted for protection to a strong weathering surface, and before punching, the outer pile casing is adopted for protection to a strong weathering surface; the soil body at the position of the pile hole is separated from the soil body outside the outer pile casing by the outer pile casing, so that the soil body outside the outer pile casing cannot be influenced during punching, the soil body outside the outer pile casing can be tightly attached to the outer wall of the outer pile casing, and the friction force between the outer pile casing and the soil body is increased. The method has the effect of improving the bearing capacity of the pile foundation subjected to follow-up pouring.
本申请公开了用于岩溶地区桥梁桩基成孔的施工方法，其包括步骤勘测地质、溶洞处理措施分类、测量放线、埋设开孔护筒和桩孔施工，针对不同特点的岩洞采用不同的处理措施，在冲孔之前，先采用外护筒防护至强风化面，外护筒将桩孔位置的土体与外护筒外的土体隔开，所以在冲孔时，不会影响到外护筒外侧的土体，外护筒外侧的土体能够紧贴外护筒的外壁，提高外护筒和土体之间的摩擦力。本申请具有提高后续浇筑完成的桩基的承载力的效果。
Construction method for hole forming of bridge pile foundation in karst area
用于岩溶地区桥梁桩基成孔的施工方法
LUO JIAN (author) / CHEN YIXIANG (author) / SHA OU (author) / YAN YI (author) / SU MILIN (author)
2023-01-17
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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