某工程冲孔灌注桩施工中钻孔偏斜的原因分析及处理措施

Bored of a Construction Project Drilling Skewed Cause Analysis and Treatment Measures

摘要: 本文根据220 kV怀集变电站主控楼冲孔灌注桩施工偏孔的处理经验，总结出冲孔灌注桩施工过程中偏孔的原因主要有孔底土质不均、倾斜岩面、土层中夹有大的孤石或其它硬物及桩机安装就位稳定性差等，并提出预防和处理措施，为冲孔灌注桩施工提供借鉴和参考。

Abstract: Based on the experiences of treatment to partial hole of the filling pile construction in Huaiji main control 220kV substation building, we summarized the main causes of the partial holes in the process of the filling pile construction. These causes include the uneven soil of hole bottom, inclined interface of stratum, large boulders or other hard objects in the soil and poor stability of the pile machine installation. At the same time, we put forward some suggestions on the prevention and treatment measures for avoiding partial hole in filling pile construction.