基于综合指数法的深部开采隔离矿柱失稳危险性评价  

Instability Risk Evaluation of Insulating Pillar of Excavation in Depth Based on Comprehensive Index Method

作　　者：徐恒[1,2] 王贻明[1,2] 吴爱祥[1,2] 李芳芳 高维鸿 

机构地区：[1]北京科技大学土木与资源工程学院,北京100083 [2]北京科技大学金属矿山高效开采与安全教育部重点实验室,北京100083

出　　处：《有色金属工程》2018年第1期98-104,共7页Nonferrous Metals Engineering

基　　金：国家"十二五"科技支撑计划项目(2012BAB08B02)

摘　　要：从自然条件和人为影响两个方面系统分析了影响隔离矿柱失稳危险状态的因素和相应指数,基于综合指数法得到隔离矿柱失稳危险的指数计算公式和评价指数。根据失稳危险评价指数将失稳危险划分为5级:无失稳、弱失稳、中等失稳、强失稳和极端失稳破坏危险,对应不同的危险等级采取不同的防治措施。通过谦比希铜矿主矿体生产实例对该评价方法进行了验证,表明所建立的评价体系和相应的评价结果与矿山实际开采情况基本一致,可将其应用于深部开采隔离矿柱的失稳危险性评价中。Analyzing the influential factors and index of insulating pillar instability risk from natural conditions and human factors in detail, based on comprehensive index method, the Index calculation formula and evaluation index were obtained. According to the instability risk evaluation index, instability risk is divided into 5 levels including no instability destruction risk, weak instability destruction risk, moderate instability destruction risk, strong instability destruction risk and extreme instability destruction risk, to which take different prevention measures corresponding. The validation of Chambishi copper mines production presents the evaluation system and its outcome is consistent with the practical situation, which indicates the method could be applied to instability risk evaluation of insulating pillar of excavation in depth.

关 键 词：综合指数法 自然条件因素 人为影响因素 隔离矿柱 失稳 

分 类 号：TD853[矿业工程—金属矿开采]