强烈地震后斜坡灾害地质体变形演化特征和防治对策

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英文篇名：Geological Deformation Evolution Characteristics of Hazardous Geological Body of Slope and Precautionary Countermeasures post Violent Earthquake 中文刊名：勘察科学技术 英文刊名：Site Investigation Science and Technology 作者：许文鼎 ; 吴云莺 ; 张树宝 ; 赵益民 英文作者：Xu Wending1 Wu Yunying2 Zhang Shubao2 Zhao Yimin2 (1.Chaidamud Comprehensive Geological Survey Brigade of Qinghai Province (2.Hebei Provincial Hydrogeological and Engineering Geological Investigation Institute) 中文关键词：“5.12”地震 ; 灾害地质体 ; 变形特征 ; 防治方案 英文关键词："5.12" earthquake ; hazardous geological body ; deformation characteristics ; precautionary countermeasures 出版日期：2009-10-20 机构：青海省柴达木综合地质勘查大队;河北水文工程地质勘查院; 年：2009 期：05 出版单位：勘察科学技术

摘要

"5.12"汶川地震后,面积13余万km2山地的河谷或山谷斜坡区内[5],形成了大量的沉积物流堆积体、崩塌、滑坡、泥石流等次生灾害地质体。地震波效应后的斜坡松散岩土体及灾害地质体,在降雨、外力等作用下,稳定性迅速降低。地质灾害防治是一项困难、复杂的系统工程,全面系统地分析灾害地质体所处地质环境、变形历史、现状变形特征及演化趋势规律,防灾、减灾的对策措施才能有的放矢。
After "5.12" Wenchuan earthquake,large amount of sediment accumulation,collapse,landslide,mud-rock flows of secondary disasters are formed in 130 thousand km2 mountainous slopes of the valley or the valley sloppy area.The slopes stability of loose rock and soil and hazardous geological body rapidly reduces after seismic wave effects under the rainfall or external forces.Geological hazards precautionary countermeasures are difficult and complex systems engineering,as long as systematically analyses the geological environment,deformation history and deformation characteristics of the status quo and law of evolution trends,the countermeasures of protection and reducing the hazards could be effectively implemented.

引文

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