旋喷法与人工挖孔组合模型的设计及应用

The design and application of composite pile model for jet-grouting pile and excavated-pile

对属于地基处理 (旋喷法 )和桩基工程 (人工挖孔 )的两种工艺进行了有效的组合 ,给出了两种施工工艺适用的场地土质条件、工程条件、水文地质条件 ;设计了两种组合模型 ,分别论述了模型的组合条件、组合理论、模型设计 ;并根据沈阳城区的岩土工程条件 ,对组合桩的承载力、沉降量、沉降差等计算或判定 ,以及有关参数的选择做了说明 ,绘制了施工流程图 ;对这两种类型给出了工程实例印证。

The effective composition has been made for the two procedures of jet-grouting pile and excavated-hole pile.The conditions of soil nature, engineering and hydrogeology of the sites favourable for the two working procedures have been given. The two composite models have been designed, and the composite condition and the composite theory and design method are discussed. According to the geotechnical engineering condition of the town of Shenyang, some calculating methods of bearing capacity, settlement and difference, the selection of parameters have been illustrated. The construction flow diagram has been drew, and engineering examples for the two models have been given.