Near-field ground motion simulation 近场地震动估计
near-field strong ground motion 近场强地震动
The seismic stress amplitude of the lower layer is larger than that of the upper layer under near-field ground motion, and under far-field ground motion the condition is opposite.
在近场地震动作用下双层隧道下层的地震应力幅值要比上层的地震应力幅值大，在远场地震动作用下则相反；
A random synthesis procedure based on finite fault model is adopted for near field strong ground motion simulation, in this paper.
为了模拟近场强地震动，采用了基于有限断层模型的一种随机合成方法。
The results indicate that the presented method could illuminate the saturation effect in near field and attenuating characteristics of strong ground motion in far field from large earthquake.
结果表明，建议的方法能反映近场强震地震动饱和的效应和大震远场衰减的特点。
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