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A platform for research: civil engineering, architecture and urbanism
Cast-in-situ bored pile hole forming method
The invention relates to the technical field of geotechnical investigation construction, in particular to a cast-in-situ bored pile hole forming method. The cast-in-situ bored pile hole forming methodcomprises the steps of carrying out preparation before construction, carrying out pile casing burying, carrying out drilling, carrying out hole cleaning, carrying out drainage hole drilling, carryingout chambering and the like, and in the chambering step, a pre-drilled pile hole during drilling is gradually squeezed to the designed pile hole diameter through three times of squeezing and chambering. The method has the effects that a small amount of soil is discharged in the hole forming process so that pollution to the construction environment can be reduced, and the construction pollution discharge cost is reduced.
本申请涉及一种钻孔灌注桩成孔方法，其涉及岩土勘察施工技术领域，其包括施工前准备、埋设护筒、钻孔、清孔、钻排水孔、扩孔等步骤，在扩孔步骤中通过三次挤扩逐步将钻孔时预钻的桩孔挤扩至设计的桩孔直径。本申请具有在成孔过程少量排土，可减少对施工环境的污染，降低施工排污的成本的效果。
Cast-in-situ bored pile hole forming method
The invention relates to the technical field of geotechnical investigation construction, in particular to a cast-in-situ bored pile hole forming method. The cast-in-situ bored pile hole forming methodcomprises the steps of carrying out preparation before construction, carrying out pile casing burying, carrying out drilling, carrying out hole cleaning, carrying out drainage hole drilling, carryingout chambering and the like, and in the chambering step, a pre-drilled pile hole during drilling is gradually squeezed to the designed pile hole diameter through three times of squeezing and chambering. The method has the effects that a small amount of soil is discharged in the hole forming process so that pollution to the construction environment can be reduced, and the construction pollution discharge cost is reduced.
本申请涉及一种钻孔灌注桩成孔方法，其涉及岩土勘察施工技术领域，其包括施工前准备、埋设护筒、钻孔、清孔、钻排水孔、扩孔等步骤，在扩孔步骤中通过三次挤扩逐步将钻孔时预钻的桩孔挤扩至设计的桩孔直径。本申请具有在成孔过程少量排土，可减少对施工环境的污染，降低施工排污的成本的效果。
Cast-in-situ bored pile hole forming method
一种钻孔灌注桩成孔方法
LIU JINGFENG (author) / LI QUANJUN (author) / ZHENG CHENGYONG (author) / SHAN LINFENG (author) / LI FANGANG (author) / ZHANG JUNQUE (author)
2020-11-17
Patent
Electronic Resource
Chinese
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