Underground void filling by cemented mill tailings

查看全文 作　　者：Choudhary Bhanwar [1]Singh;Kumar [1]Santosh

机构地区：[1]Department of Mining,Indian School of Mines

出　　处：《International Journal of Mining Science and Technology》索引2013年第23卷第6期,共8页

摘　　要：Underground mining always create voids.These voids can cause subsidence of surface.So it is always a demand to fill the void in such a manner that the effect of underground mining can be minimized.Void filling using mill tailings especially in metal mining is one of the best techniques.The tailings produced in milling process have traditionally been disposed in tailing ponds creating a waste disposal and environmental problems in terms of land degradation,air and water pollution,etc.This disposal practice is more acute in the metal milling industry where the fine grinding,required for value liberation,results in the production of very fine tailings in large percentage.This paper includes discussions on the effectiveness of different paste mixes with varying cement contents in paste backfilling operations.The results revealed that material composition and use of super plasticizer strongly influenced the strength of cemented backfill. 关键词：UNDERGROUND Cemented mill tailings BACKFILLING Metal mining Super plasticizer

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Underground void filling by cemented mill tailings

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