Study On Slope Stability Of Longqiao Dump Of Xiaolongtan Mining Bureau

In order to shorten the distance of transportation and reduce the costs of discharging land,most opencast coal mines have to implement inner discharging to reduce the cost of mining and transportation of opencast coal mines.In recent years,the problem o f slope stability in the inner dump has become more and more prominent,and the deformation and landslide disaster frequency in the inner dump have been increasing year by year.In order to avoid the landslide in the dump site of open-pit coal mine,it is necessary to optimize the slope form of the dump site,reduce the landslide risk and make the open-pit coal mine more safe.In recent years,many experts and scholars have applied different methods to study the slope stability.The law of slope stability is studied by limit equilibrium method.Although relevant experts and scholars in C hina have done a lot of research on the stability of internal dump slope,there are few studies on the influence of slope Angle and advance distance on the stability of internal dump slope,and many practical engineering problems of the dump have not been solved.Longqiao dump is mainly used to dump the topsoil and marl and other stripping materials of bozhumba open-pit mine.With the development of mine construction,the height of longqiao dump keeps increasing,and its safety and stability have become the biggest threat to the safety of the lower villages and towns.Therefore,the physical and mechanical parameters of longqiao dump were measured experimentally,and the basic data of stability analysis of the dump were analyzed.This study collected the basic data of the slope of longqiao dump,analyzed the basement shape,hydrologic and geological conditions of the dump,and determined the sensitive factors affecting the slope stability.According to mine slope geometry size,the displacement monitoring data and history,and site of mixed material mechanics parameters for validation,induction,analysis results,different depth of a central site dragon bridge play,location,physical and mechanical parameters of rock mass base,provide basic data for the site for the dragon bridge stability evaluation.