对于大直径圆柱壳结构及其土体分别采用壳单元和沿深度分层施加的三维空间弹簧单元进行模拟 ,推演了一种耦合数值分析方法 ,综合考虑了土体特性、土体深度及变形情况等因素。采用壳单元和弹簧单元的耦合数值处理可以有效地模拟大直径圆柱壳结构与土体之间的非线性相互作用机制。通过对实际工程的计算 ,所得到的圆柱壳结构在荷载作用下的受力状态以及位移与变形分布情况等结果均较为理想 For the large-diameter cylindrical shell structure and its soil body, the shell element and the three-dimensional space spring element applied along the depth are used respectively to simulate and deduce a coupled numerical analysis method, taking into account the characteristics of soil body, soil depth and deformation And other factors. The coupled numerical processing of shell elements and spring elements can effectively simulate the nonlinear interaction mechanism between large-diameter cylindrical shell and soil. Through the calculation of the actual project, the obtained cylindrical shell structure under stress load state and the displacement and deformation distribution results are ideal