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通过三峡电站钢衬钢筋混凝土压力管通大比尺（１∶２）平面结构模型试验，研究了内水压力作用下的裂缝性态及温度荷载作用下裂缝张合特征，试验研究成果更接近工程实际．
Through the model test of large-scale (1: 2) plane structure of the steel-lined reinforced concrete pipe of the Three Gorges Power Station, the fracture behavior under internal water pressure and the characteristics of cracks under temperature load are studied. The experimental results are closer to the engineering actual.