活动断层地震地表永久位移研究综述

Review of studies on surface permanent displacement of active faults

活动断层地震地表永久位移的研究为地震灾害预防、工程结构抗震设计中地表永久位移的输入,对大型工程选址、避让距离的确定及抗错动措施的选取提供理论依据。因此,其对防震减灾具有十分重要的工程意义和理论价值。本文介绍了地震地表破裂的分类及研究内容,综述了国内外活动断层地震危险性分析和地表永久位移估计的研究现状、成果及主要观点,对其发展走向作了展望。

Study on surface permanent displacement of active faults provides displace-ment input for earthquake disaster prevention and seismic design of engineering structure. And it provides a theoretical basis for site selection of large engineering,determination of the evaded distance and measure selection of dislocation resistance.Therefore,it has a great en-gineering significance and theoretical value to earthquake preparedness and disaster reduc-tion.In this paper,classification and research contents of seismic surface rupture are intro-duced.And research status,results,main viewpionts and prospect of seismic risk analysis of active faults and evaluation of surface permanent displacement are reviewed.