[提要]  考察了广东地区预应力高混凝土管桩（PHC桩）在工程实践中存在的问题，对不同的地质状况下制定打桩收锤标准、桩约束设计、承载力计算、估算桩长等争议问题进行了论证，提出了修正技术方案。
[关键词]  预应力高强混凝土管桩  复杂地质  收锤标准  成桩质量  约束设计

Based on fieldwork investigations,questions of PHC-pile foundation in Guangdong province are talked about. Views and suggestions are presented to identify different complicated foundation soils,and the condition for stopping hammering,  the design for confinement, the calculation of bearing capacity,  the estimation of pile length are presented.
Keywords:  PHC pile; complicated foundation soils; stop hammering condition; pile quality; confinement design

    　参  考  文  献
1．预应力混凝土管桩基础技术规程( DBJ/T15-22-98)．
2．先张法预应力混凝土管桩（DBJ02-10-99）．宁波．