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| EXPLORATION AND PRACTICE OF COMBINING OPEN AND DELAYED FILLING STOPING WITH FILLING MINING METHODS TO EXTRACT THE ORE BODY WHICH HANGING SIDE IS FRACTURED |
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Received:January 08, 2013
Revised:January 12, 2013
Accepted:January 15, 2013
Published Online:May 28, 2014
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| DOI： |
| KeyWord:open and delayed filling stoping, filling mining methods, fractured hanging side |
| Author | Institution |
| MA Chun -hua |
Faculty of Land Resource Engineering,Kunming University of Science and Technology,Yunnan Kunming |
| MU Da-yao |
Faculty of Land Resource Engineering,Kunming University of Science and Technology,Yunnan Kunming |
| LI De-feng |
Yunnan golden tripod XinYe co,LTD,Yunnan Nujiang |
| HUANG Zhi-neng |
Yunnan golden tripod XinYe co,LTD,Yunnan Nujiang |
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| Abstract: |
| The lead-zinc Ⅰ #, Ⅱ # ore body in Jin Ding town of Lan Ping county is large inclined thick ore body.The orebody is stable but the hanging side wall rock is loose and fractured. There is a big looss and high grade canopy guard ore reserve become a permanent loss when extraction it by reserve roof open stope method.Combined with such orebody mining method at home and abroad present situation ,we have explorated a way that called combining open and delayed filling stopiing with filling mining methlds to extract the orebody. Practice shows that, this kind of mining method can greatly reduce the hanging side rock exposed area and improve the ore recovery rate and mining intention. |
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