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根据三峡二期工程上游深水高土石围堰的水文地质特性和堰体防渗墙可能出现缺陷的有关假定，建立了饱和－非饱和条件渗流计算模型。编制了可供工程实用的多功能三维有限元渗流计算程序，在国内外首次对防渗心墙上部有缺陷时的渗流状态进行了研究。综合分析了非饱和渗流参数、防渗墙缺陷的位置、宽度等因素对渗流的影响，从而对防渗墙局部缺陷下围堰的渗透特性作出评价。
According to the hydrogeological characteristics of the deep-water high earth-rock cofferdam in the upstream of the second-stage project of the Three Gorges Project and the assumption of possible defects in the weir cut-off wall, a seepage calculation model of saturated-unsaturated conditions is established. The multi-functional three-dimensional finite element seepage calculation program which is available for engineering application was compiled. The seepage status of the impervious core wall was firstly studied at home and abroad for the first time. The effects of unsaturated seepage parameters, location and width of impervious wall on the seepage are analyzed synthetically, and the infiltration characteristics of the cofferdam under the imperfection wall are evaluated.