诱导破岩采矿关键技术问题探讨

Probe into Key Technical Problems of Induced Caving Mining Method

介绍了诱导破岩采矿的应用现状,分析了诱导破岩的机理和可冒性评估方法,提出将拉底等工程指标量化后引入可冒性评估方法的完善方案。按照诱导力的来源将诱导破岩分为内力诱导和外力诱导,提出调控采动应力诱导破岩矿块布置结构。指出诱导条件下矿岩冒落响应规律和冒落块度是诱导破岩理论研究的核心问题,分析拉底参数、辅助诱导工程、放矿控制等因素对冒落响应规律和冒落块度的影响机制,提出离散元和有限元软件耦合模拟、利用辅助诱导工程监测的冒落响应规律和冒落块度研究方法。对完善诱导破岩理论,提高诱导破岩法的认知度,指导工程应用具有重要意义。

Application status of induced caving method was introduced,the mechanism of induced caving and the evaluation method of cavability were analyzed,it is proposed that quantified the undercutting parameters and made to be the indexes of cavability evaluation. The induced caving was classified to auxiliary induced and internal force induced according to the source of induced force,the block structure of induced caving was proposed by regulating the mining-induced stress. It is proposed that the regularity of caving response and the caving fragmentation were the core of researching induced caving,the mechanism of undercutting parameters,auxiliary induced engineering and drawing control influencing regularity of caving response and caving fragmentation was analyzed. The research methods for investigating the regularity of caving response and caving fragmentation by discrete element and finite element coupling simulating and field monitoring with auxiliary induced engineering were proposed. It is significant to optimize the induced caving theory,increase the degree of cognitive and guide the engineering application.