大型镍矿深部高应力矿体充填法开采关键技术与对策

杨志强,高谦,陈得信,郭慧高

中国工程科学 ›› 2014, Vol. 16 ›› Issue (8) : 38 -44.

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中国工程科学 ›› 2014, Vol. 16 ›› Issue (8) : 38 -44.

大型镍矿深部高应力矿体充填法开采关键技术与对策

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Problems and Countermeasures for Safe and Effective Filling Mining in Jinchuan Nickel Mine in the Deep and High Stress

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摘要

金川镍矿是我国最大的硫化铜镍矿,以地应力高、矿体厚大和矿岩不稳固著称国内外采矿界。该矿体开采难度之大、充填成本之高备受国内外采矿界关注。近年来,随着矿床开采深度逐年增加已接近千米,采场面积超过1×105 m2,高温、高压和高渗压的“三高”采矿环境日趋显著,不仅提高了采矿成本,而且还给矿山安全高效生产带来巨大压力。本文首先概述金川深部矿床采矿技术条件,然后明确采矿生产面临巷道和采场稳定性控制技术难题,分析采场围岩变形和岩层移动所潜在的灾变失稳风险。最后提出了金川深部矿体安全高效开采亟待攻克的技术难题,为金川深部资源开发能力和综合利用指明了方向。

Abstract

Jinchuan nickel mine is well known for its high crustal stress, thick and large ore body and unstable ore rock in the mining industry. It is well noted by domestic and overseas mining industry for the the huge orebody mining difficulty and high filling cost. In recent years, with the depth of mining approching 1000 meters and stope area exceeding 100 square kilometers, "three high" mining environment, which is characterized by high temperature, high pressure and high osmotic pressure, is more and more significant. As a consequence, the safty of deep ore body and the mining efficiency are seriously challenged. In this thesis the problems and challenges faced by deep mining is overviewed firstly. Then the control problems of roadway and stope face stablity faced by mining production are stated. Catastrophe risk of instability caused by stope wall rock deformation and rock strata movement is analyzed. At last, proposing technical difficulties that the jinchuan deep mining safely and efficiently should be overcame, providing clear research direction for improving development ability and the comprehensive utilization of resources.

关键词

金川镍矿 / 深部开采 / 高应力 / 关键技术 / 研究方向

Key words

Jinchuan nickel mine / Deep mining / High stress / Key technology / Study direction

Author summay

1957年出生,男,山西万荣县人,博士,教授级高级工程师,博士生导师,主要从事充填法采矿安全与管理及废弃物资源 化利用等方面的研究

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杨志强,高谦,陈得信,郭慧高 大型镍矿深部高应力矿体充填法开采关键技术与对策[J]. 中国工程科学, 2014, 16(8): 38-44 DOI:

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