缓倾斜厚矿体采场结构参数优化研究  

Study on Optimization of Stope Structure Parameters and Support System for Gently-inclined Thick Ore body

作　　者：刘泽洲 吴伟伟[2] 雷明 LIU Zezhou;WU Weiwei;LEI Ming(Changsha Institute of Mining Research Co.,Ltd,Changsha,Hunan 410012,China;School of Resources and Safety Engineering,Central South University,Changsha,Hunan 410083,China)

机构地区：[1]长沙矿山研究院有限责任公司,湖南长沙410012 [2]中南大学资源与安全工程学院,湖南长沙410083

出　　处：《矿业研究与开发》2020年第9期6-10,共5页Mining Research and Development

摘　　要：缓倾斜厚矿体采场结构参数对采场安全、经济、可靠回采有着重要的影响。结合经验法和数值分析法两类方法进行分析,首先采用Mathew稳定图表法通过极限暴露面积确定采场结构参数的初步范围,然后采用数值模拟计算,以拉应力和顶板位移为目标函数,研究在充分发挥围岩自支承作用下的最优采场结构参数,以达到经济和安全回采的目标。研究表明,采用Mathew稳定图表法确定的采场宽度为30~36m;采用数值模拟计算得出采场在长度85m,人工矿柱15m的情况下,最优开采宽度为33m。The stope structure parameters of the gently-inclined thick ore body have important influences on the safety,economy,and reliable stoping of the stope.In this study,analysis was carried out by the combination of the empirical method and the numerical analysis method.Firstly,the Mathew stability chart method was used to determine the initial range of the stope structure parameters through the limit exposure area.Then,with tensile stress and roof displacement as the objective functions,the numerical simulation was used to calculate the optimal stope structure parameters under the full self-supporting action of the surrounding rock,so as to to achieve the goal of economic and safety mining.The results show that,the stope width is determined as 30~36 m by Mathew stability chart method,and the optimal mining width is 33 m by numerical simulation calculation when the stope length is 85 mand the artificial pillar is 15 m.

关 键 词：空场嗣后充填采矿法 采场结构参数 Mathew法 数值模拟 

分 类 号：TD853.2[矿业工程—金属矿开采]