............293.3.3 接触面的添加................................................................................313.3.4 约束和荷载的添加........................................................................333.4 结果分析...................................................................................................343.4.1 竖向位移分析................................................................................343.4.2 水平位移分析................................................................................373.4.3 垂直于河流方向的位移分析........................................................393.4.4 应力分析........................................................................................403.5 小结...........................................................................................................41