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克拉斯诺雅尔斯克坝基为坚硬的裂隙花岗岩。观测发现个别坝段基础沉陷季节性变化是渗流过程的差异引起的。上游水位抬高时，通过裂隙基岩的渗流过程是不同的。对观测成果进行了分析。最后以系数值α_２ｆ予以表示。
Krasnoyarsk dam foundation for the hard fissured granite. The observation shows that the seasonal variation of foundation subsidence of individual dam sections is caused by the difference of seepage process. When the upstream water level is raised, the seepage process through bedrock of fractures is different. The observation results were analyzed. Finally, the coefficient value α_2f to be expressed.