摘要
2008年5月12日发生的汶川地震造成大量山体出现震裂变形,潜在危害严重。以青川县为研究对象,结合大量实例调查统计以及振动台模拟研究,初步分析了斜坡震裂变形的基本形成机理,系统总结了斜坡震裂变形的发育特点和分布规律。以此为基础,分析了影响震裂斜坡稳定性的内因和外因,初步提出了危险性分级评价标准。震裂斜坡具有不同于一般滑坡的独特变形特点和规律,其危险性预测方法也有别于一般滑坡,建议结合已经全面开展的应急治理工程对震裂斜坡危险性评价方法进行系统研究。
The Wenchuan earthquake on May 12,2008 led to shattering deformation of a large number of mountains.The potential damage is serious.To knowing well its characteristics and regular patterns and summarize its dangerous methods will provide a powerful foundation for the reconstruction after the earthquake,hazard resistant and reduction,and so on.Combined with a large number of investigation examples and vibrator platform simulation researches for Qingchuan in Sichuan,（Qingchuan is one of harder-hit area and has more typical slope shattering distribution and development）,this paper analyses the foundational formation mechanics on a trial,and generalizes the development and distribution characteristics of the slope shattering deformation systematically.Based on this,it analyses the internal and external causes which influence the shattering slope stability and puts forward the preliminary grading evaluation criterion for risks.The shattering slopes have distinctive characteristics and laws different from common landslides,and the forecasting risk method is other than common landslide,too.So it suggests that the risk evaluation method should be studied systematically combined with the emergency regulatory engineerings which have been promoted totally.
出处
《成都理工大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第6期679-684,共6页
Journal of Chengdu University of Technology: Science & Technology Edition
基金
国家自然科学基金(青年)(40802073)
"科技减灾
重建家园"专项基金(DZJK-0811)资助项目
关键词
震裂斜坡
形成机理
发育特点
分布规律
危险性评价方法
shattering slope
formation mechanism
development characteristics
distribution rule
risk evaluation method
