人工挖孔扩底桩桩身混凝土与承载力分析

阐述了人工挖孔扩底桩的承载性质 ,讨论了桩身混凝土与承载力的相互关系 ,分析了人工挖孔桩混凝土护壁对桩身混凝土的约束作用 ,并结合工程实例 ,对工程实践中人工挖孔桩承载力的确定方法提出建议

Analysis of bearing capacity and concrete strength of manual cavity expansion pile

To expound the bearing characteristic of manual cavity expansion pile,then discuss the relationship of concrete and bearing capacity and the restraining action of concrete barrels on the concrete strength of pile,put forwards proposals about method to determine bearing capacity of manual capacity expansion pile basing on the practical engineering example.