青海省囊谦县某高寒山区滑坡灾害特征与预警阈值分析

Analysis of Landslide Disaster Characteristics and Early Warning Threshold in High-cold Mountain Area of Nangqian County,Qinghai

以青海省玉树州囊谦县白玛俄林寺滑坡为研究对象,从滑坡地质灾害的形成机理出发,综合考虑了环境特征、地貌特征、岩石力学性能、水文地质条件、岩性特征、人类工程活动等影响因素,结合雨量监测、地表位移监测、裂缝发育监测等实测数据对研究区滑坡的失稳机理和预警阈值进行分析。基于实时监测调查资料,结合失稳机制等建立稳定性预测,以滑坡稳定性状态阈值划分标准为统一标尺,建立多参数监测,结合岩石力学、水文地质、工程地质等预警指标判断标准,为高寒山区降雨型滑坡早期预警提供新的研究思路和经验支撑。

Taking Baima olinsi landslide in Baoqian County,Yushu prefecture,Qinghai Province as the research object,starting from the formation mechanism and external causes of landslide geological disasters,this paper comprehensively considers the influencing factors such as environmental characteristics,geomorphic characteristics,rock mechanical properties,hydrogeological conditions,lithology characteristics,human engineering activities and so on.Combined with the measured data of rainfall monitoring,surface displacement monitoring and crack development monitoring,the instability mechanism and early warning threshold of landslide in the study area are analyzed.Based on the real-time monitoring and investigation data,the stability prediction is established in combination with the instability mechanism,taking the threshold division standard of landslide stability state as the unified ruler,and the judgment standard of multi parameter monitoring combined with early warning indicators such as rock mechanics,hydrogeology and engineering geology is established,so as to provide new research ideas and experience support for the early warning of rain falling landslide in High-cold Mountain Area.