Research On The Medium-term Stability Of A Tailings Reservoir Of Chengde

Mining has long been important in China's energy sector,with many of the liquid waste discharged in mining production,and most of these waste tailings are in the tailings.The safety of the tailings dam is directly related to the safety of the tailings,over the years with the increase of mining depth,the safety of the tailings problems are more serious,the shortage of land resources at the same time,the tailings of expansion problem is also increasingly necessary.Through the parameters obtained from the engineering geology report,in-situ test,indoor geotechnical test and hydrogeological report of chengde tailings reservoir,the stability of the dam body of chengde is analyzed,and the main work and results obtained are as follows.?1)Description of the terrain features of the tailings reservoir area;2)The composition,density and deposition of the tailings pile;3)To find out the structure,size and status of the drainage system in the reservoir;4)The seepage location and seepage situation of the tailings dam are proved,and the seepage simulation calculation is calculated according to the normal and flood conditions of the dam at 710 meters respectively,and the rationalization proposal is given5)In flood dam according to the normal and two cases,calculation of dam slope stability against sliding,calculating the static safety factor against sliding of dam slope,in accordance with the relevant specification,analysis and evaluation the anti-sliding stability of the dam body in the static condition;6)Analyze the unstable factors of dam foundation and dam body and propose corresponding solutions.