基于安全系数评价的某矿回采顺序优化分析及高应力控制  

Stoping sequence optimization analysis and high stress control based on evaluation of safety factors

作　　者：许梦国[1] 王明旭[1] 王平[1,2] 甘仕伟[1] 谢峰[1] 陈顺满[1] 

机构地区：[1]武汉科技大学,湖北武汉430081 [2]华中科技大学,湖北武汉430074

出　　处：《化工矿物与加工》2013年第11期24-29,共6页Industrial Minerals & Processing

摘　　要：综合考虑矿体分布、生产任务要求、回采作业条件,结合现场实际制定了4种回采方案。依据地质资料和现场调研情况建立数值模型并对4种回采方案进行模拟研究,结果表明回采方案二最优。不过随着回采作业继续向深部推进,虽然对于所研究水平方案二继续保持整体的优势,但在局部区域表现出了劣势,说明回采方案在向下水平推进的过程中需要继续优化,以此确保回采方案最优。考虑到2区矿体高应力,制定了同时考虑矿体厚大部分和高应力的3种回采方案,模拟结果表明,方案一最优。针对回采过程中出现的高应力采取了相应的措施。Four kinds of mining methods are developped consid- ering ore body distribution, production task requirements and op- erating conditions of extraction, combined with the actual situa- tions on site. The numerical model is established and the research on simulation of four kinds of mining methods is made based on the geological data and the field investigation. The simulation re- suits show that the second mining method is the best. With the mining operations continuing to push down, although the second mining method keeps the overall advantages on the level of re- search, some local areas show disadvantages. It indicates that the mining method in the process of downward level advance needs to continue optimization to ensure that mining operation is conduc- ted by the optimum mining method. Given that orebody in sec- tion 2 has high stress, three mining methods are developped for large thickness and high stress of orebody. The simulation results show that the first method is the best. Appropriate measures, are taken against high stress of orebody in the process of extraction.

关 键 词：安全系数 数值模拟 回采顺序 优化 高应力 控制 

分 类 号：TD859[矿业工程—金属矿开采]