强震动下的地震微分区研究

地震微分区主要是研究一些区域发生强地震的损害性震动及其破坏性地震的性能.依据目标地震,衰减,土体和岩石性质、地质构造、地面建模、增强、基岩和地表震动等方面进行了探讨,通过数据处理、建模、绘图和运行,研究了识别地震强度下地震衰减的规律;对土体状况进行分类;确定由目标地震引起的基岩上和地表峰值加速度.最后,提出了合理的地震灾害对策和地震工程学的方法,为评估和减轻未来地震灾害提供了依据.

Seismic microzoning study for strong sesmic motion

The basic point in seismic microzoning study is to provide strong seismic motions over the areas and vulnerability to destructive earthquakes. In this study, it was researched by seismic target earthquakes, attenuation, soil and rock properties, geological profiles, ground modeling, amplifications and base rock and surface ground motions. The result of data processing, modeling, mapping, interpreting made it possible to identify certain regularities in the attenuation of the earthquake intensities, to classify soil conditions, to determine peak ground acceleration at base rock and ground surface caused by target earthquakes. Finally, seismic microzoning maps were drawn which gave the possibility for estimating a level of a seismic motion in order to assess and mitigate the consequent damages after future earthquakes by both further assessment in earthquake engineering and by reasonable earthquake disaster countermeasures plans.