摘要
三峡库区蓄水以来,库水位在145～175m周期性波动,库水位升降是诱发岸坡变形失稳的重要因素之一。针对降雨和库水位升降以龚家方4#斜坡为例,运用自动化远程监测其变形和该区域降雨量,通过数据整理、分析,掌握降雨和库水位升降对滑坡变形的影响状况。结果表明:在监测期间,个别时间段滑坡变形加剧是降雨和库水位升降共同作用的结果,个别时间段降雨、库水位升降分别为斜坡变形加剧的主导因素,斜坡变形与10日降雨量相关性最好。监测表明目前斜坡仍处于变形阶段,通过对该斜坡的变形监测,可以定量的分析和描述斜坡的运动状态,对三峡库区其他类似斜坡的研究具有重要的指导意义。
Since water storage in the Three Gorges Reservoir area,reservoir water level fluctuated between 145 m and 175 m.Reservoir water level fluctuation is one of the important factors that cause slope to unstability.This article,according to rainfall and reservoir water level fluctuation to Gongjiafang4# slope,through monitoring its deformation and the regional rainfall by automated remote monitoring,studied the influence of rainfall and water level fluctuation on the slope by data sorting and analysis.The results showed that in the monitoring period,both rainfall and reservoir water level fluctuation jointly acted on the slope deformation aggravating in some time series.In some other time series,rainfall or the reservoir water level fluctuation was the dominant factor on the slope deformation aggravating.Slope deformation with 10 days rainfall was the best correlation.Monitoring indicated that the slope was still in deformation stage.Based on the deformation monitoring of the slope,it can quantitatively analyze and describe the slope motions.This study has significance on other similar landslide in the Three Gorges Area
出处
《长江流域资源与环境》
CAS
CSSCI
CSCD
北大核心
2013年第3期353-358,共6页
Resources and Environment in the Yangtze Basin
基金
中国地质调查局灾害预警项目"三峡库区高陡岸坡成灾机理研究"(1212011014027)
关键词
降雨
库水位升降
变形
监测
影响
rainfall
reservoir water level fluctuation
deformation
monitoring
influence
