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以有限单元法为理论基础,研究了水闸桩土复合地基承载力与桩土置换率之间的关系.应用ANSYS有限元计算软件建立了不同桩土置换率下的桩土联合承载数值模型,计算桩土联合承载时不同置换率下的桩土联合承载力.根据数值模拟计算结果建立桩土联合承载力与置换率之间的关系曲线,分析两者之间的变化规律,并分别进行线性拟合、指数拟合和多项式拟合,得到相应的拟合公式及拟合精度,以便在实际工程中利用这些关系式预估所需的置换率及相应的地基承载力,为以后桩土复合地基模拟及设计提供重要的参考价值.
Based on the finite element method, the relationship between the bearing capacity of pile-soil composite foundation and the replacement rate of pile-soil was studied. The numerical simulation model of pile-soil bearing capacity under different replacement rates of pile-soil was established by ANSYS finite element software. Pile-soil combined bearing capacity of pile-soil under different replacement rates.According to the results of numerical simulation, the relationship between the bearing capacity of pile-soil and the replacement rate is established, and the variation between them is analyzed. Fitting, exponential fitting and polynomial fitting to get the corresponding fitting formula and fitting accuracy so as to predict the required replacement rate and the corresponding bearing capacity of foundation in the actual project, Simulation and design provide important reference value.