摘要
本文根据我国发生的17次8级以上的大震资料,着重讨论了特大地震的震害特点、破坏类型及若干对策问题,强调指出了区域性的场地条件,特别是黄土和软土分布区对震害的影响,因此,在选择建筑场地时,除应避开发震断层外,更主要地应避开易产生各种场地震害的地段,同时要注意等震线的不对称性和长周期震动对远处的影响。
Based on the data of 17 earthquakes (M≥8) in China, the author studies the disaster characteristics, destruction types and some countermeasures. The effects of regional site condition, especially the loess and soft soil on disaster are emphasized. It is indicated that for site selection in seismic regions with high intensity, besides the causative faults, it is important to avoid disadvantageous region where the site damages are easily caused; it is necessary to pay attention to asymmetric character of isoseismic contours and the effects of long period vibration on distant site during great earthquakes.
出处
《西北地震学报》
CSCD
1993年第2期64-70,共7页
Northwestern Seismological Journal
关键词
地震
震害
地震对策
Violent Earthquake
Disaster
Countermeasure
