Design of Three-step Stoping Scheme of the Hanging Wall Ore of Gushan Open-pit Stope of Anhui Province

Modern Mining ›› 2018, Vol. 34 ›› Issue (11): 59-61.

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Design of Three-step Stoping Scheme of the Hanging Wall Ore of Gushan Open-pit Stope of Anhui Province

Yang Jian¹，Yang Jiamian^2,3,4，Yin Yu^2,3,4，Liu Yunqiu^2,3,4

1.Taochong Mining Co.,Ltd.,MasteelGroup) Holding Co.,Ltd.；2.Sinosteel Maanshan Institute of Mining Research Co.,Ltd.；3.State Key Laboratory of Safety and Health for Metal Mines; 4.Huawei National Engineering Research Center of High Efficient Cyclic and Utilization of Metallic Mineral Resources Co.,Ltd.

Online:2018-11-25 Published:2018-12-27

Abstract

Abstract: According to the mining technical conditions and actual situations of the hanging wall ore of Gushan Open-pit Stope,three-step stoping technical scheme is proposed.By referring to the experiences of the similar mines,the two feasible mining technical schemes are designed,and the safety of them are analyzed by adopting numerical simulation method.Through comparison of the two mining schemes,the optimal one is selected,the orebodies in 1# and 2# ore vein roadway in the northeast of the stope are recovered effectively and safety,the ore recovery rate is 60％,ore dilution rate is 8%,the desired effects is obtained.

Key words: Hanging wall ore, Open-pit to underground mining, Three-step stoping, Numerical simulation, Stoping scheme

YANG Jian, YANG Jia-Mian, YIN Yu, LIU Yun-Qiu. Design of Three-step Stoping Scheme of the Hanging Wall Ore of Gushan Open-pit Stope of Anhui Province[J]. Modern Mining, 2018, 34(11): 59-61.

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Design of Three-step Stoping Scheme of the Hanging Wall Ore of Gushan Open-pit Stope of Anhui Province

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