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通过几个电站的有限元计算和仿真材料模型试验成果,分析混凝土坝下游面钢衬钢筋混凝土管道的轴向应力分布规律及其对管壁应力的影响,可作为管壁三维强度分析的依据,并指出在轴向压力和内水压力作用时裂缝更早发生。
Through the finite element calculation and simulation material model test results of several power stations, the axial stress distribution rules of steel lined reinforced concrete pipe downstream of concrete dams and its influence on the stress of pipe wall can be analyzed as the basis for the three-dimensional strength analysis of pipe wall. It is pointed out that cracks occur earlier when the axial pressure and the inner water pressure act.