饱和尾矿砂地基非线性沉降计算

Nonlinear Settlement Computation of the Saturated Tailing Sand Foundation

以双曲线方程对载荷试验曲线进行拟合,确定原状土相关参数,建立双曲线切线模量方程,计算饱和尾矿砂地基的沉降,同时引入附加应力折减系数,在对比分析计算结果与实测沉降结果的基础上,得出:这种计算方法能反映地基非线性沉降变形特征,可为同类型饱和尾矿砂地基桩间土的沉降计算提供参考。

Hyperbolic curve was adopt to match the load test curve, and the related parameters of undisturbed soil could be determined, the equation of hyperbola curve tangent modulus was set up, to calculate the soil settlement of saturated tailing sand foundation, and by introducing the reduction factor of additional stress, on the basis of analysis and comparison were made to the calculated settlement and the measured settlement, obtained that,this method could reflect the nonlinear deformation characteristics of foundation, it could provide references to the settlement calculation of soil between pipes of saturated tail sand foundation with the same type.