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机构地区:[1]中南大学,湖南长沙410083
出 处:《矿业研究与开发》2006年第B11期16-19,共4页Mining Research and Development
基 金:国家"十五"科技攻关计划(2004BA6152-04).
摘 要:为了确定合理的支护方案,需对凿岩硐室的稳定性进行评价全面分析了影响深井采场凿岩硐室稳定性的因素,并将影响因素分为4类。运用模糊数学中的综合评判法建立了硐室稳定性的评价模型,该模型包含二级模糊综合评判,共考虑了18个影响因子,此外,还建立了相关因子的隶属函数。以铜陵冬瓜山深井开采为实例,对采矿方法试验采场凿岩硐室的稳定性进行了评价。评价结果表明,该凿岩硐室的稳定性属于较稳定类型,且偏向于中等稳定类型:这一结果与现场实际情况较吻合.In order to select reasonable supporting scheme, it is necessary to evaluate the stability of drilling chamber. The influencing factors relating to chamber stability of deep mining stope were fully analyzed, and the factors were divided into 4 types. The evaluation model was set up by comprehensive judgement method which belongs to fuzzy mathematics. The model consists of two - class fuzzy judgement and 18 influencing factors. Besides, the membership functions of related factors were derived. As an example, the drilling chamber stability of deep mining stope was evaluated, where mining method are testing in Tongling Dongguashan deposit. The evaluating result shows the drilling chamber stability belongs to relative stability, and leans towards moderate stability. This conclusion is in agreement with practical situation.
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