Compared with the seismic responses of free homogeneous half space, the results present the effect of vertical cracks on the propagation of seismic wave and the ground motion near the fault site.

计算结果与均匀半空间自由场做了对比，以说明竖向地裂缝对地震波传播和附近地面运动的影响。

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A new definition of distance parameter in attenuation law of ground motion, i. e. the average distance from site to both ends of rupture line is proposed.

文中对地面运动衰减规律中的距离参数提出了一种新的定义，即从场地到破裂线两端点的平均距离。这个定义能较好地反映发生构造地震的断层破裂模式。

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The design ground motion time histories was synthesized for the Shahuan Nuclear Power Plant Site according to the characteristics of the site and the specifications of input motion in the paper.

本文根据广东沙环核电厂厂址地震地质环境特点和有关核法规的技术要求完成了设计地面运动时程的人工合成。

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