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位于我国东北、华北地区的十几座大型尾矿坝成功地经受了１９７５年海城地震（Ｍ＝７．３）和１９７６年唐山地震（Ｍ＝７８，Ｍ＝７１）的袭击，这为研究上游法尾矿坝的抗震性能以及评价目前坝体地震反应分析、稳定分析方法的能力及其有效性提供了宝贵的经验与资料。本文采用二维真非线性有效应力动力反应分析程序ＴＡＲＡ－３，研究了位于唐山市东北约５０ｋｍ处具有代表性的大石河尾矿坝。计算结果与震后宏观调查结果相符，基本上再现了１９７６年大石河尾矿坝在唐山地震过程中的表现，从而也进一步验证了ＴＡＲＡ－３计算程序的有效性
A dozen large tailings dams located in northeastern and northern China have successfully undergone the attacks of 1975 Haicheng earthquake (M = 7.3) and 1976 Tangshan earthquake (M = 7.8, M = 7.1) , Which provides valuable experience and information for studying the seismic performance of upstream tailing dam and for evaluating the seismic response analysis and the stability analysis method of the dam. In this paper, two-dimensional true nonlinear effective stress dynamic response analysis program TARA-3 was used to study the Dashihe tailings dam which is located about 50km northeast of Tangshan City. The calculation results are in good agreement with the results of the post-earthquake macro survey, and basically reflect the performance of the Dashihe tailing dam during the Tangshan earthquake in 1976, thus further verifying the validity of the TARA-3 calculation program