The Stability Of Chengde Tailings Pond Analysis Of Dam Body

With the rapid growth of economy,mineral resources industry has been development rapidly.Because of the tailings deposit tailings as important production facilities,so,mineral production is higher and higher,the amount of tailings mineral is bigger and bigger after processing enterprises selected the useful components of the rest.Because the tailings storage tailings are an important production facility,so the number of it will increase rapidly,and the dam height will be got higher.Once a tailings dam destroys,it will not only pose a threat to downstream residents' personal safety,it still can make the downstream fields washed out,and make the field swamping on large area.Make its economy and the environment suffered heavy losses.This article,writing from the hydro geologic and engineering geologic conditions of the tailings dam,use the means of numerical simulation analysis,making an in-depth study to the tailings dam stability under the condition of different condition combinations,expounds the static stability of tailings dam,seepage,earthquake force.in this paper,we make the following several aspects of the work and results:Through a large number of indoor and outdoor test results of on-site investigation on the analysis and the summary,elaborated the stacked tailings deposition laws,provides the necessary calculation parameters for the tailings dam stability analysis;Through artificial monitoring data on the basis of the principle of support vector machine SVM model to predict saturation line,select dry beach length,the water level elevation,dam height,beach,beach elevation difference as impact factors,and applied to the model,predict a position under the condition of saturation line.At the same time,the comparison of the predicted values and the monitoring data for further verification,by error analysis error range between 0.00% ~ 2.45%,the average error is 0.97%,the result analysis shows that the calculation results meet precision seepage saturation line distribution;Using Geo-studio geotechnical engineering software and to the status quo and design the final elevation dam as the research object,make flood simulation analysis in normal water level and seepage field under the condition of different working conditions,analyzing respectively for seepage line,seepage vector,total head,pore pressure,hydraulic gradient calculation results.Based analysis done for tailings dam stability analysis.Make a comparison and analysis for the status quo of the tailings dam saturation line location and prediction of the saturation line forecast model,It is concluded that error range between2.13% ~ 3.95%;Expounds the limit equilibrium theory sisterly,and chose the Swedish article points method,Bishop method,Janbu method,Morgenstern-price method four different analysis method for tailings dam in a later chapter static stability analysis as the theoretical basis;Based on the theory of limit equilibrium under the action of the tailings dam in solid-liquid coupling seepage with six different combinations of conditions of static stability analysis.Convection of fluid-solid coupling seepage tailings dam under the action of the quasi static method is used for dynamic stability analysis of a preliminary exploration it is concluded that several different analysis method of safety coefficient,and verification and comparison,obtained some conclusions under different working conditions of the combination of the tailings dam meet the specification requirements,at the same time,determining the seismic load,water stability,high dam for tailings dam safety draw the influence factors of safety factor;...