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在分析岩土介质渗流场与应力场耦合的用机理的基础上,建立二者耦合模型。以此为基础,针对具体的尾矿坝,进行渗流场与应力场相互耦合的数值模拟。模拟计算了单独考虑渗流场,单独考虑应力场以及两场耦合情况,并将三种情况进行了对比分析。结果表明:在耦合场中渗流量比单独计算时小;耦合场中沉降量比单独计算时大,且最大沉降量发生区域大致相同;耦合场中各向应力总量最大值比非耦合场中大,局部出现应力集中现象;耦合场中应力等值线分布规律与非耦合场基本一致。
Based on the analysis of coupling mechanism of seepage field and stress field in geotechnical media, a coupled model is established. Based on this, the numerical simulation of mutual coupling between seepage field and stress field is carried out for a specific tailings dam. The seepage field is considered separately, the stress field and two coupling conditions are considered separately, and the three cases are compared and analyzed. The results show that the seepage flux in the coupled field is smaller than that of the coupled field alone. The settlement in the coupled field is larger than that in the single calculation and the area of the maximum settlement is almost the same. The maximum of the total stress in the coupled field is smaller than that in the uncoupled field Large and partial stress concentration phenomenon; the distribution of stress contour in the coupling field is basically the same with the non-coupling field.