Analysis Of Waste Dump Of Yejiwei Copper-tin Mining Area In Shizhuyuan

The main mining of Shizhuyuan Yejiwei Mine was lead-zinc deposit formerly,with the resources exhausting day by day,for sustainable development of the enterprise,and full use precious mineral resources,they planed to develop Copper-tin polymetallic deposit as the superseding resources of lead-zinc ore,and the waste dump is open pit mine Matching engineering.How to ensure the waste dump to be economic and safe is the challenge to everymine construction.Especially,the waste dump slope stability is biggest problem,as it involves many factors,have wide effection and long duration.To solve the above problems,according to the specific condition of terrain of Yejiwei,this paper came to the research of optimizations of waste dump,the mainly contents as following:(1)Bring out initial plans by the investigation geological condition of mining area and stripping volume of open-Pit Mine, determine stripping waste rock dump into waste dump,which locate in the north of open stope,then four schemes are proposed further(2)Get the result of infiltration surface of seepage field of dump through finite element(3)Throuth limit equilibrium methodwe get the result that the minimum safety coefficient are greater than the allowable safety coefficient(1.15).Minimum safety coefficient of each scheme sorted from smallest to largest:first scheme,second scheme,third scheme,forth scheme,however the minimum safety coefficient of the whole slope of third scheme greater than that of forth scheme(4) Using gray correlation-weighted TOPSIS method in the comprehensive evaluation of dump programmes,the result show that whichever mothed we adopted to get the minimum safety coefficient of each scheme,the third one always be the best scheme. (5)Based on researchresults show above,we raised Reasonable dumping technology and programme,wasteDump reclamation plans and programmes...