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Engineering    2017, Vol. 3 Issue (4) : 559 -566     DOI: 10.1016/J.ENG.2017.04.021
Research |
Key Technology Research on the Efficient Exploitation and Comprehensive Utilization of Resources in the Deep Jinchuan Nickel Deposit
Zhiqiang Yang1,2()
1. State Key Laboratory for Comprehensive Utilization of Nickel and Cobalt Resources, Jinchang, Gansu 737100, China
2. Jinchuan Group Co., Ltd., Jinchang, Gansu 737100, China
Abstract
Abstract  

To understand the resource features and geology in the deep Jinchuan nickel deposit, difficult geological conditions were systematically analyzed, including high stress, fragmentized ore rock, prevalent deformation, difficult tunnel support, complicated rock mechanics, and low mining recovery. An integrated technology package was built for safe, efficient, and continuous mining in a deep, massive, and complex nickel and cobalt mine. This was done by the invention of a large-area continuous mining method with honeycomb drives; the establishment of ground control theory and a technology package for high-stress and fragmented ore rock; and the development of a new type of backfilling cement material, along with a deep backfilling technology that comprises the pipeline transport of high-density slurry with coarse aggregates. In this way, good solutions to existing problems were found to permit the efficient exploitation and comprehensive utilization of the resources in the deep Jinchuan nickel mine. In addition, a technological demonstration in an underground mine was performed using the cemented undercut-and-fill mining method for stressful, fragmented, and rheological rock.

Keywords Deep mining      Efficient exploitation      Comprehensive utilization      Key technology     
Corresponding Authors: Zhiqiang Yang   
Online First Date: 31 August 2017    Issue Date: 13 September 2017
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Cite this article:   
Zhiqiang Yang. Key Technology Research on the Efficient Exploitation and Comprehensive Utilization of Resources in the Deep Jinchuan Nickel Deposit[J]. Engineering, 2017, 3(4): 559 -566 .
URL:  
http://engineering.org.cn/EN/10.1016/J.ENG.2017.04.021     OR     http://engineering.org.cn/EN/Y2017/V3/I4/559
References
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3   Jinchuan Nonferrous Metals Corporation, Institute of Geology and Geophysics of Chinese Academy of Sciences. Research on the engineering geomechanics for mining at Jinchuan copper-nickel mine. Beijing: Institute of Geology and Geophysics of Chinese Academy of Sciences; 2000. Chinese.
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