【摘要】 通过三维有限元地震反应分析 ,确定了天龙湖水电站高边坡地震加速度放大区及动拉应力区。结果表明 ,厂房所处区域为加速度衰减区 ,与同高程岸坡速度、加速度相比 ,厂房区量值较小。厂房区顺河向加速度约 3.6m/s2 ,横河向加速度约 3.4m/s2 ,铅直向加速度约 2 .5m/s2 ,分别为输入加速度的 0 .87、0 .82和 0 .6 0倍。上述结果为最终确定地下厂房方案 ,优化布置方案提供了设计参考依据更多还原

【Abstract】 Acceleration amplification region and dynamic tensile region of Tianlonghu underground power station are studied using 3-D finite element seismic analysis. The result shows that the designed underground power station is in the decreasing zone of acceleration. The values of velocity or acceleration are smaller than that on the slope at the same elevation. The acceleration of downstream directional acceleration is 3.6 m/s 2, while 3.4 m/s 2 in the transverse direction and 2.5 m/s 2 in the vertical direction, or in another word 0.87,0.82 and 0.60 times the input acceleration. Thus providing references for the final determination and optimization of underground power-station scheme.更多还原