基于Monte-Carlo模拟的矿岩可崩性评价  

EVALUATION ON CAVABILITY OF ORE-ROCK BASED ON MONTE-CARLO SIMULATION

作　　者：宋明军[1,2] 李海港 王李管[1] 冯兴隆 

机构地区：[1]中南大学资源与安全工程学院,湖南长沙410083 [2]江西省安全生产科学技术研究中心,江西南昌330001 [3]玉溪矿业有限责任公司,云南玉溪653100

出　　处：《中国钼业》2015年第5期16-20,共5页China Molybdenum Industry

基　　金：国家高技术研究发展计划项目(863计划)(2011A A060407)

摘　　要：矿岩可崩性是判别矿山能否采用自然崩落法采矿的重要参数,通过对Monte-Carlo模拟技术原理的分析,研究节理面空间块度分布的特征,经合理选取优势节理组,对影响可崩性评价的参数进行定量分析,建立矿岩块度三维模型,利用Makeblock软件系统对矿岩进行可崩性评价。利用上述方法对金川Ⅲ矿区进行可崩性评价,评价结果表明崩落块度体积在0.1～1.4 m3之间,其中体积小于0.4 m3的块体占85.5%,矿体采用自然崩落法进行开采的效果很好。同时,为证明Monte-Carlo模拟法的可靠性,采用劳布施尔法对金川Ⅲ矿区的矿岩可崩性进行分析,结果表明,运用Monte-Carlo模拟法对矿岩可崩性评价是可靠的。Cavability of ore -rock is the important parameters which can judge the mine by using block caving method.Through analyzing Monte -Carlo simulation technology theory , the characteristics of the joint surface＇s dis-tributional space was researched , and the reasonable advantage of joints were selected , the related parameters which is thought important too were analyzed , and the 3d model block was built , finally, Makeblock software sys-tem was used to evaluate .This method is applied to ore -rock fragmentation evaluation on No .3 mining area in Jin-chuan.The simulation results show that block caving volume is between 0.1 and 1.4 m3 and the blocks volume less than 0.4 m3 is 85.5%.It is believed that it is an effective method to evaluate the cavability of ore -rock .At the same time , Laubscher＇s caving chart can be used to prove the reliability of the Monte-Carlo simulation method .The results show that using Monte-Carlo simulation method is reliable .

关 键 词：可崩性 MONTE-CARLO模拟 劳布施尔法 自然崩落法 

分 类 号：TD313[矿业工程—矿井建设]