凹凸型钻孔灌注桩施工技术

Concave-convex Type Bored Pile Drilling Technique

摘要:

在砂层摩阻力不够的情况下，采用凹凸型钻孔灌注桩施工提高单桩承载力，获得成功。介绍了凹凸型钻孔灌注桩的设计、施工方法及应用效果。

Abstract:

In the case of insufficient friction resistance in sandy formation,the single pile bearing capacity is successfully increased by forming a concaveconvex type bored pile. The design,construction andresults of the concave-convex bored pile are described.