Experimental Study of Low Dilution Drawing in Gently Inclined Thick Gypsum Deposit

doi:10.12068/j.issn.1005-3026.2019.11.018

Journal of Northeastern University Natural Science ›› 2019, Vol. 40 ›› Issue (11): 1617-1622.DOI: 10.12068/j.issn.1005-3026.2019.11.018

• Resources & Civil Engineering • Previous Articles Next Articles

Experimental Study of Low Dilution Drawing in Gently Inclined Thick Gypsum Deposit

JIA Hai-bo， REN Feng-yu， HE Rong-xing， DING Hang-xing

School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China.

Received:2018-09-05 Revised:2018-09-05 Online:2019-11-15 Published:2019-11-05
Contact: JIA Hai-bo
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Abstract

Abstract: The physical experiment on optimization of the stope structure parameters in induced caving method was performed to reduce ore losing and degrading. The mineral particles and the effects of thickness of mineral grain， spacing of trenches and spacing of alleyways on the recovery rate were investigated. The results showed that when the thickness of mineral grain is more than 20m， induced caving method with double trench is applied， and the distance between trenches should be 18m. Induced caving method with tandem trenches is suitable for conditions when the thickness of mineral grain is less than 20m， and the distance between trenches should be 10m， and the distance between alleyways should be 8m.

Key words: low dilution drawing, flowing law of ore-rock bulk, distance between trenches, distance between alleyways, induced caving method

CLC Number:

TD876⁺.1

JIA Hai-bo， REN Feng-yu， HE Rong-xing， DING Hang-xing. Experimental Study of Low Dilution Drawing in Gently Inclined Thick Gypsum Deposit[J]. Journal of Northeastern University Natural Science, 2019, 40(11): 1617-1622.

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Experimental Study of Low Dilution Drawing in Gently Inclined Thick Gypsum Deposit

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