管桩大多是用锤击法打入地下。锤击力往往很大,有时就能够把管桩打坏。导致管桩打坏的原因是多方面的;有的是属于管桩结构设计和制造的,有的是属于工地打桩施工的,还有的是属于客观地质条件的。本文着重讨论打桩施工问题。一、打桩中的质量问题 1.桩头打坏问题在各种打桩破损事故中,“桩头打坏” Piles are mostly hammered into the ground. The hammering force is often great, and sometimes it can break the pipe pile. There are many reasons leading to the destruction of pipe piles; some are structural designs and manufacturing of pipe piles, some are piling construction sites, and others are objective geological conditions. This article focuses on the issue of piling construction. First, the quality problems in pile driving 1. Pile head damage problems in a variety of piling damage accident, “head broken”