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结合现场试验结果,研究了柔性基础下采用CFG桩桩筏复合地基时的工作性状。试验研究的主要内容为CFG桩桩顶和桩间土的沉降变形、桩顶及桩间土的压力值、地下水位和孔隙水位以及测试点水平位移随深度的变化。该研究成果可为新建铁路路堤下CFG桩桩筏复合地基设计参数取值提供实测依据。
Combining with the field test results, the working characteristics of the CFG pile-raft composite foundation under flexible foundation are studied. The main contents of the experimental study are the settlement and deformation of the top and inter-piles of CFG piles, the pressure of the top and inter-piles, the variation of groundwater level and pore water level, and the horizontal displacement of the test points with depth. The research results can provide the basis for the design parameters of CFG pile-raft composite foundation under the new railway embankment.