辽宁岫岩抽水蓄能电站工程区地层岩性复杂、地震烈度高，工程场地地震基本烈度为Ⅷ度。采用三维非线性静动力有限元方法，对辽宁岫岩拟建抽蓄枢纽电站的上水库高沥青面板堆石坝（坝高124 m）开展计算论证分析。结果表明：静力条件下大坝变形分布规律合理，蓄水期大坝顺流向位移和沉降量极值分别为23、54 cm，面板拉应变极值为0.3%，当考虑坝料流变时，大坝顺流向位移、沉降量和面板拉应变极值均有所增加；在设计地震工况条件下，大坝顺流向、轴向和竖向加速度最大值分别为8.7、9.3、6.1 m/s²，动位移极值分别为19.8、21.2、15.9 cm，震后坝顶震陷极值为52 cm，震陷率为0.42%；对于沥青混凝土面板，震中轴向和顺流向动拉应变极值分别为0.18%和0.25%，叠加静力应变的震中轴向和顺流向拉应变极值分别为0.25%和0.35%。综合评价大坝整体安全性能良好，地震时不会出现重大安全问题，该设计方案经论证后可节省投资额约2.04亿元。更进一步地，对大坝死水位及正常蓄水位分别遭遇设计地震与校核地震进行分析，可为相关沥青混凝土面板堆石坝工程提供借鉴参考。

The geological formations of the Liaoning Xiuyan Pumped Storage Power Station area are complex, and the seismic intensity is high, with a basic seismic intensity of Magnitude VIII. A three-dimensional nonlinear static and dynamic finite element method was employed to analyze the 124 m-high asphalt concrete-faced rockfill dam of the upper reservoir for the Liaoning Xiuyan Pumped Storage Power Station. The numerical results indicate that the deformation pattern of the asphalt concrete-faced rockfill dam is reliable. During the water storage period, the maximum values of downstream displacement and settlement of the dam are 23 cm and 54 cm, respectively, and the maximum tensile strain of the asphalt-concrete faced is 0.3%. When considering the rheological behavior of dam materials, both the maximum values of downstream displacement, settlement of the rockfill dam, and the tensile strain of the asphalt-concrete faced are increased. Under the design earthquakes, the maximum values of downstream, axial, and vertical accelerations of the dam are 8.7, 9.3, and 6.1 m/s², respectively, and the maximum values of dynamic displacement are 19.8, 21.2, and 15.9 cm, respectively. The maximum value of post-earthquake settlement at the dam crest is 52 cm, with a settlement rate of 0.42%. As for the asphalt-concrete faced, the maximum values of axial and downstream dynamic tensile strains during the earthquake are 0.18% and 0.25%, respectively. When static strains are superimposed, the maximum values of axial and downstream tensile strains during the earthquake are 0.25% and 0.35%, respectively. The overall safety performance of the dam is good, and there will be no major safety problems during the earthquake, and the design scheme can save about 204 million RMB of investment after demonstration. Further, the dynamic response to the design and check earthquakes under the dead and normal pool level conditions is analyzed, which can provide a reference for related asphalt concrete-faced rockfill dam projects.