In order to better evaluate the safety of environmental slopes,a safety level classification method for envi-ronmental slopes was proposed through the study of relevant characteristics and influencing factors of environmental slopes,so as to provide a reliable basis for the treatment,design and construction of environmental slopes.This meth-od could comprehensively consider the slope shape correction coefficient(including to the slope gradient and height)and the geotechnical characteristic values of slope(composed of overburden characteristics,basic rock mass quality,structural plane characteristics,and hydrogeological conditions four elements),and divide the safety level of environmental slopes into five categories by using the differential scoring model.In addition,taking the environmen-tal slope of the right bank tail water outlet of the Wudongde Hydropower Station and the environmental slope of the lower reservoir inlet or outlet of the Shitai Pumped Storage Power Station as examples,the method was verified.The results showed that the environmental slope of the right bank tail water outlet of the Wudongde Hydropower Station may had large scale planar or wedge shaped sliding,serious deformation or toppling.The environmental slope of the lower reservoir inlet or outlet of the Shitai Pumped Storage Power Station may had small scale planar sliding or shal-low layer deformation.This method can fully reflect the factors affecting the stability of environmental slopes and can be used for qualitative and quantitative evaluation of the safety of environmental slopes.
关键词
环境边坡/边坡安全评价/积差评分模型/乌东德水电站/石台抽水蓄能电站
Key words
environmental slopes/slope safety evaluation/differential scoring model/Wudongde Hydropower Sta-tion/Shitai Pumped Storage Power Station
维普
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