摘要
在详细研究青海省地震地质和地震活动性资料的基础上，确定了线源上加点源的 潜在震源新模式．用以描述地震发生的不均匀性。统计了震级－频度关系，进行了地震 加速度及速度反应谱衰减关系的估计。最后用概率论方法对场地的危险性进行了分 析，计算得到的对应于一定概率水平的加速度及其反应谱在工程设计中具有一定的参 考价值。
Based on the detailed analyses of seismic geology and seismic activity in Qinghai Province, a new model about potential earthquake focuses is proposed, in which many point focuses are superposed on line focuses to depict the nonhomogenuity of seismic events on the corresponding faults. The relation- ship between magnitude and frequency of earthquake occurring is obtained statistically, and the attenuation laws of acceleration and its response spectrum are estimated by using the qualitative intensity values in Qinghai Province and the recorded data in western United States. Finally, the probabilistic method is employed to perform earthquake risk analysis. The acceleration and its spectrum with different exceeding probabilities are therefore calculated, which can be used as reference criteria in engineering des ig n.
出处
《大连理工大学学报》
EI
CAS
CSCD
北大核心
1990年第1期101-109,共9页
Journal of Dalian University of Technology
关键词
拉西瓦
水电站
场址
地震
地质条件
seismic geological condition
carthquake risk region
seismic sources
probabi1ity
seismic response spectrum.
