反循环旋挖式桩基钻孔施工技术

摘要

结合工程实践经验,介绍了反循环旋挖式桩基钻孔的特点、工艺原理、适用范围,阐述了施工方法及技术要求,针对其特点提出了具体的安全措施,并指出反循环旋挖式桩基钻孔是桩基成孔工艺的发展方向.%Combining with engineering practice experience, the characteristic, technological principle and scope of application of reverse circulation rotary drilling pile bedding boring were introduced, and the construction method and technical requirements were explained. The concrete safety measurements were provided aiming at its characteristic, and it pointed out that reverse circulation rotary drilling pile bedding boring was the development direction of pile hole construction technique.