摘要
本文利用弹簧片、闭合弹簧、阻尼器、塑性摩擦片组成的系统,模拟走滑断层面上的剪应力积累过程.并认为:震前断层面上的剪应力积累上限和震后断层面的残余剪应力均可视为随机变量,由历史地震资料可以确定这两个随机变量的概率分布,基于上述观点,本文给出了一种关于挤压式走滑断层地震危险性分析的新方法.
In this paper, the system who is composed of spring lamination. closed spring,damper and plastic friction wafer is used to simulate the cumulative process of shear stress on the shear front of strike fault Authors hold the ideas that the accumulated toplimit of shear stress on the shear front before earthquake and the residual shear stress on the shear front after earthquake are both stochastic variables, and the probability distribution of the two variables can be determined out of historical seismic information. As a result, on the basis of the above ideas, a new seismic risk analysis method for strike fault under extrusion stress is given.
基金
国家自然科学基金
关键词
走滑断层
震源
剪应力
地震危险性
strike fault
seismic risk analysis
lower probability
satisfied belief degree