液压挤扩支盘桩成型过程研究

Study on the Forming Process of Squeezed Pile

利用原位剖面观测和室内实验的方法，分析了液压挤扩支盘桩的成型过程对周围介质土的影响范围，探讨了液压挤扩支盘桩的承载特征．结果表明，承力盘的设置增大了桩身的端承作用，使液压挤扩支盘桩承载能力得到提高；同时成盘过程对周围介质土具有挤密压实作用，将地基土加固处理，增大了地基强度．

The methods of surveying vertical section of squeezed Pile and testing soil specimen are used in the analysis of influence range of squeezed pile on the surrounding soil and the discussion of bearing characteristics of squeezed pile. It is shown that the bearing capacity of squeezed pile is raised not only based on the expansion of cross section but also on the compression effect in foe forming process of squeezed pile.