摘要
讨论了长江三峡东段 (巫峡—西陵峡 )地区的地震与滑坡问题。认为 ,峡区存在的断裂活动带、地震活动带和滑坡活动带 ,在空间分布上重迭 ,在时间周期上吻合 ,在活动强度上一致 ,突显出区域地壳运动的一种重要特点。且以黔江—恩施—巴东和仙女山—香溪—兴山两条强震发生带最为典型 ;强调指出 ,在对库区进行地质灾害治理时要优先考虑潜在地震活动的影响。
The research on the earthquakes and the landslides in the Three Gorges east segment (Wuxia Gorge—Xilingxia Gorge) of the Yangtze River shows that there is a close relation among the active fault zones, the seismic spread bands and the landslide mobile belts, which is embodied in the overlap of spatial distribution, the tally of temporal period as well as the consistency of active intensity. They stand for some major features of the regional crust movement. It must be stressed that there are two pleistoseismic occurring zones through the Three Gorges Reservoir region, known as “Qianjiang-Enshi-Badong'and “Xiannushan-xiangxi-Xingshan'. Before the engineering treatments of geological hazards, therefore, the trigger action of the potential seismic motion to landslide and hazardous rock body must be fully taken into account. [
出处
《中国工程科学》
2003年第10期43-51,共9页
Strategic Study of CAE
关键词
长江三峡
地震
滑波
工程治理
Three Gorges of the Yangtze River
earthquake
landslide
engineering treatment
