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介绍了广西华锡集团股份有限公司铜坑矿细脉带矿体的围岩条件和开采环境,对其上覆硫化矿自燃火区的危害和围岩开采条件进行了分析,提出了优化改进的无底柱崩落采矿法,并对其实施中的各种危害采取了应对措施,经过技术攻关,完成了火区治理及复杂环境破碎难采矿体的安全开采,安全回收矿量216.88万t,为矿山创造了约12.18亿元的产值,同时也为类似复杂条件下矿体的开采提供了经验。
This paper introduces the surrounding rock conditions and mining environment of the Tongkeng ore vein belt ore body of Guangxi Huaxi Group Co Ltd, analyzes the harm of the spontaneous combustion fire zone of the overlying sulfide ore and the conditions of surrounding rock mining, and puts forward the optimization and improvement Pillarless caving mining method, and its implementation of a variety of hazards to take measures to deal with, after technical research, completed the fire area management and complex environment difficult to mining safety mining, safe recovery of 2.1658 million tons of ore, as The mine has generated an output value of about 1.218 billion yuan and also provided experience for the mining of ore bodies under complex conditions.