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为了做好城市建设规划,应及时提供震害预测资料。尽管影响震害的因素很多,但就其区域分布而言,明显地受着地质条件的制约,这已为许多历史地震资料所证实。这种因地质条件差异而形成的烈度区划谓之震害地质区划,它有着广泛的现实意义。一、震害地质区划的原则震例调查表明,影响震害地质区划的因素主要有:1、断层:主要指发震断层,或具有新构造活动特征的断层,这种断层形成的地质历史长、规模大,岩石破碎,充水,震害效应明显。1948年威海发生六级地震时地裂、
In order to do a good job of urban construction planning, timely provision of earthquake damage prediction data. Although there are many factors that affect earthquake damage, their geological distribution is obviously constrained by geological conditions, which has been confirmed by many historical seismic data. This kind of geological zonation caused by the difference of geological conditions means that it has a wide range of practical significance. First, the principle of geological damage zoning survey shows that the impact of seismic geological division of the main factors are: 1, fault: mainly refers to the fault or new tectonic activity features of the fault, the long geological history of such faults Large scale, broken rocks, water, earthquake damage effect is obvious. In 1948 Weihai six earthquakes occurred when the earthquake,