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露天煤矿高台阶抛掷爆破爆堆形态模拟 被引量:26

Simulation model for muckpile shape of high bench cast blasting in surface coal mine
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摘要 为了研究高台阶抛掷爆破爆堆形态的模拟方法,在总结、分析大量的现场生产试验数据的基础上,完成了高台阶抛掷爆破爆堆形态的分类和高台阶抛掷爆破爆堆形态模拟的Weibull模型的建立。模拟结果表明:模拟爆堆曲线能与实测曲线较好地吻合,模拟结果较准确,爆堆始点爆破漏斗深度h为台阶高度的0.17~0.38倍,Weibull曲线参数α取值在0.919 3~1.245 0,β取值在1.185 9~1.832 4。 A classification method and the Weibull simulation model of muckpile shape of high bench cast blasting were established based on analyzing the date from local experiments.The simulation results fit the experiments quite well.The value of parameter α of Weibull distributing model is in range of 0.919 3~1.245 0,1.185 9~1.832 4 for parameter β,and(0.17~0.38)H for h.
出处 《煤炭学报》 EI CAS CSCD 北大核心 2011年第9期1457-1462,共6页 Journal of China Coal Society
关键词 露天煤矿 高台阶 抛掷爆破 爆堆形态 Weibull模型 surface coal mine high hench cast blasting muck-pile shape Weibull distribution modle
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