摘要
在露天矿抛掷爆破中,爆破效果的优劣影响到拉斗铲作业效率及露天矿生产成本。优化爆破参数,提高爆破效果具有重要的意义。以模糊数学原理为基础,通过分析选取有效抛掷率、松散系数、降震效果和炸药单耗作为评价指标,建立了黑岱沟露天煤矿抛掷爆破效果的综合评价模型,并通过对实测数据进行分析,确定了其效果等级为很好。该评价模型的建立,为露天矿抛掷爆破效果评价提供了一种有效的方法。
The effect of casting blast could influence working performance of dragline and cost of production in open-pit.Therefore,to optimize blast parameters was a significant measure to promote the blast effect.Based on fuzzy mathematics theory,the efficient casting rate,coefficient of volumetric expansion,shocking effect and explosive consumption are selected as evaluation factors,and the synthetic evaluation model of casting blast for Heidaigou open-pit coal mine is established.And the effect is evaluated as excellent from analysis of in situ measurement.The evaluation model＇s establishment provided an efficient method for evaluating the effect of casting blast for open pit.
出处
《金属矿山》
CAS
北大核心
2011年第9期58-60,64,共4页
Metal Mine
基金
国家高技术研究发展计划(863计划)项目(编号:2007AA06Z131)
关键词
露天煤矿
抛掷爆破
模糊综合评价
爆破效果
Open-pit coal mine
Casting blast
Fuzzy synthetic evaluation
Blasting effect
