摘要
在参与玉树7.1级地震震区地质灾害应急调查、汛期隐患排查的基础上,收集、整理前人调查与研究的成果数据,分析了震后玉树震区的地质灾害发育特征,并进一步研究了震后玉树灾区地质灾害可能的持续时间、演化趋势以及高风险区的分布区域。结果表明,震后玉树灾区地质灾害将持续10年左右,并以周期震荡式的衰减下降,最终恢复到震前水平;震后地质灾害高风险区将分布在巴塘河谷、结古镇周边山区与郭央烟宋多附近。
Based on field investigation, collection and statistics of data pre-and post-earthquake, the development characteristics of geo-hazards post-earthquake are analyzed. And then, duration, development tendency and high risk distribution areas of the geo-hazards post-earthquake are analyzed. It proved that the active duration of the geo-hazards post-earthquake will be lOa, which decline periodically and wavily to the active level of geo-hazards pre-earthquake; the high risk areas are located in valley of Batang river, the northern and southern mountains around the Jiegu town and the area near the Guoyangyansongduo village.
出处
《灾害学》
CSCD
北大核心
2013年第4期61-66,共6页
Journal of Catastrophology
基金
中国地质调查局地质调查项目(12120113008800)
关键词
玉树7
1级地震
地质灾害
发育特征
持续时间
发展趋势
Yushu Ms7. 1 earthquake
geo-hazard
development characteristic
duration
development tendency
