A new concept of backfll design—Application of wick drains in backflled stopes  

作　　者：Li Li 

机构地区：[1]School of Advanced Technology,University of Quebec [2]Research Institute on Mines and the Environment (RIME),Department of Civil,Geological and Mining Engineering,Polytechnical School of Montreal

出　　处：《International Journal of Mining Science and Technology》2013年第5期763-770,共8页矿业科学技术学报（英文版）

基　　金：the financial support of School of Advanced Technology(FIR;PSIRE-research;FDETS);the Natural Sciences and Engineering Research Council of Canada(RGPIN)

摘　　要：Backflling represents an environmentally friendly mining waste disposal technique.It is increasingly used in underground mines all over the world.However,its primary purpose remains to improve ground stability and to reduce ore dilution.Previous investigations have shown that fll drainage plays a key role in backfll and barricade design.With a poor drainage system in the backflled stope,the required dimension of barricade,which is constructed at the base of the stope near the drift entrance,has to be increased.A poor backfll drainage system can also lead to a signifcant increase in drainage waiting time and further reduction in mining productivity.In this paper,the drainage of conventional backfll design in backflled stopes is briefly reviewed.For the frst time,the application of the wick drain is introduced in the backfll within mine stopes.The drainage improvement from the introduction of the wick drain is illustrated using numerical modeling.Backflling represents an environmentally friendly mining waste disposal technique.It is increasingly used in underground mines all over the world.However,its primary purpose remains to improve ground stability and to reduce ore dilution.Previous investigations have shown that fll drainage plays a key role in backfll and barricade design.With a poor drainage system in the backflled stope,the required dimension of barricade,which is constructed at the base of the stope near the drift entrance,has to be increased.A poor backfll drainage system can also lead to a signifcant increase in drainage waiting time and further reduction in mining productivity.In this paper,the drainage of conventional backfll design in backflled stopes is briefly reviewed.For the frst time,the application of the wick drain is introduced in the backfll within mine stopes.The drainage improvement from the introduction of the wick drain is illustrated using numerical modeling.

关 键 词：Mines Backfll Backflled stopes Drainage Wick drains 

分 类 号：TD802[矿业工程—矿山开采]