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延庆—怀来盆地地震动盆地效应研究 被引量:1
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作者 王晓山 付长华 +1 位作者 赵志远 冯向东 《灾害学》 CSCD 北大核心 2023年第2期53-59,共7页
综合分析延庆—怀来盆地地震危险性,确定潜在发震断裂为延矾盆地北缘断裂的屈家窑—方家冲段,震级为7.0级。基于延庆—怀来盆地含地表厚沉积层的三维结构模型,设置两种破裂模式进行设定地震的地震动模拟研究盆地结构对地震动的放大效应... 综合分析延庆—怀来盆地地震危险性,确定潜在发震断裂为延矾盆地北缘断裂的屈家窑—方家冲段,震级为7.0级。基于延庆—怀来盆地含地表厚沉积层的三维结构模型,设置两种破裂模式进行设定地震的地震动模拟研究盆地结构对地震动的放大效应,发现盆地浅层的沉积结构对较短周期段的地震动影响更为显著,较大的放大系数通常对应着较大的第四系厚度,最大放大系数位于延庆盆地。 展开更多
关键词 延庆—怀来盆地 地震危险性 地震动模拟 盆地效应
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Simulation of Ground Motion at Guanting Reservoir Dam Based on the Scenario Earthquake in the Yanqing-Huailai Basin
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作者 Wen Yanjun 《Earthquake Research in China》 2009年第4期458-466,共9页
Research at home and abroad shows that the simulation of ground motion using the 3D finite-difference method might be accurate and feasible. Based on related theories and methods,and using the wave velocity and densit... Research at home and abroad shows that the simulation of ground motion using the 3D finite-difference method might be accurate and feasible. Based on related theories and methods,and using the wave velocity and density model of the crust in the Yanqing-Huailai Basin,this paper makes a simulation of ground motion at Guanting Reservoir Dam based on the scenario earthquake in the Yanqing-Huailai Basin. Comparative analysis shows that the results of 3D finite-difference simulation accord with those of the empirical formula. The parameters such as the velocity-time series of ground motion,PGV and frequency might be referred to for the analysis of seismic protection design of the dam's structure. 展开更多
关键词 Yanqing-Huailai Basin Guanting Reservoir Dam Scenario earthquake Simulation of ground motion
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