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青铜峡大坝建成以来出现了较多裂缝， 其中以位于电站坝段的机上、机中、机下“３ 大条”裂缝最为严重， 故产生了电站坝段向上游变形的 “疑点”。对这一问题采用结构计算及多种模型评估了其主要影响因素， 并重点对裂缝、渐变温度、泥沙以及扬压力所产生的时效对坝体变形的影响作了深入的分析研究， 由此基本弄清了大坝变形的物理成因。
There are many cracks in the Qingtongxia Dam since the project was completed. Among them, the “three big” cracks in the machine and the machine are the most serious in the machine located at the dam section of the power plant. Structural calculation and multiple models are used to evaluate the main influential factors on this issue, and the influence of cracks, gradual temperature, sediment and the aging effect caused by the uplift pressure on the deformation of the dam is analyzed emphatically. From this Basic understanding of the physical causes of dam deformation.