长螺旋钻孔管内泵压CFG桩在地基处理中的应用

Application of Pressure Pumped CFG Piles by Continuous Auger Drilling in Ground Treatment

在详细分析场地土层的工程地质性质的基础上,根据工程建筑对地基的要求,通过对几种地基处理方法分析比较,综合工程造价、处理效果、工程进度及环境影响等因素,选用长螺旋钻孔管内泵压CFG桩复合地基这种地基处理方法。对地基处理参数进行了设计,并介绍了这种地基处理方法的施工工艺、CFG桩的质量检测及其处理效果,指出了该地基处理方法的特点及应用前景。

In combination of the requirement of building for ground with the detailed analysis of the foundation soil's engineering geology features in the construction site, the construction cost, the processing effect, the progress of works, the environment effect and other factors were synthetically considered, with several ground treatment methods compared in this thesis, so that the pressure pumped CFG pile by continuous auger drilling was selected to treat the ground. The foundation treatment parameters are designed and the construction technology, quality detection of the CFG pile and its effect are presented, and the features of this ground treatment method and its application prospect are also introduced.