PEA混凝土灌注桩在高层建筑地基处理中的应用

Application of PEA Concrete Filling Pile in Ground Treatment of High-rise Buildings

:PEA混凝土灌注桩在我省迎西大厦工程的地基处理中得到应用。由于PEA掺量选择适当 ,混凝土配比科学合理 ,施工方便 ,使其单桩承载力比空白桩提高 18%以上 ,达到设计要求。本文分析了 PEA作用机理 ,提出了应用中须注意解决的技术问题。

PEA concrete filling pile has been used in ground treatment of Yingxi Building of Shanxi Province. Because of proper selection of PEA blending volume, scientific and rational proportioning of cement and convenient construction, its single pile's bearing capacity, which has been increased more than 18% compared with blank pile,reaches to the design requirement. This paper analyses the action mechanism of PEA, and points out some technical problems which must be solved in application.