定向卸压隔振爆破在生产实践中的应用
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摘要
在过去的矿山生产实践中,通常采用不耦合装药、定向断裂控制爆破等方法来实现降低爆破地震、改善爆破质量、提高爆炸能量利用率、降低轮廓线以外岩体的损伤,但效果并不理想。通过矿山生产现场不同装药模式的试验效果对比表明:在露天矿边坡工程中,定向卸压隔振爆破技术能极大改善爆破质量、降低爆破震动,减少对边坡的损伤,从而可加大台阶坡面角和最终边坡角,增加可采矿量,提高矿山经济和社会效益。
Some methods such as decoupled charge structure and controlled blasting of directional fracture were used to reduce blasting seismic,to improve blasting quality and utilization efficiency of explosive energy and to decrease the rock damage outside the contour line.However,the effect was imperfect usually.Data from different charging model in the mine production site shows that directional pressure-relieved and vibration-insolated blasting technology helps greatly to improve the quality,to reduce blasting seismic and damage to open mine slope engineering,which further increases the bench angle,ultimate slope angle and mining quantity.
Some methods such as decoupled charge structure and controlled blasting of directional fracture were used to reduce blasting seismic,to improve blasting quality and utilization efficiency of explosive energy and to decrease the rock damage outside the contour line.However,the effect was imperfect usually.Data from different charging model in the mine production site shows that directional pressure-relieved and vibration-insolated blasting technology helps greatly to improve the quality,to reduce blasting seismic and damage to open mine slope engineering,which further increases the bench angle,ultimate slope angle and mining quantity.
引文
[1]张志呈,向开伟,鲍罡武.露天深孔爆破地震效应与降振方法[M].成都:四川科学出版社,2003:166-177.
[2]张志呈.定向卸压隔振爆破机理与试验[J].科技资讯,2011(1):62-64.[2]ZHANG Zhi-cheng.Directional relieving pressure and vi-bration blasting mechanism and test[J].TechnologicalInformation,2011(1):62-64.(in Chinese)
[3]张凤元.集中药包空气间隔层爆破技术的应用[C]∥工程爆破文集.武汉:中国地质大学出版社,1997.[3]ZHANG Feng-yuan.Application of concentrated chargeair interlayer blasting technology[C]∥Engineering Blas-ting.Wuhan:China University of Geosciences Press,1997.(in Chinese)
[4]王树仁,魏有志.岩石爆破中断裂控制的研究[J].中国矿业学院学报,1985(3):56-57.[4]WANG Shu-reng,WEI You-zhi.Control in rock blastingresearch[J].Journal of China University of mining,1985(3):56-57.(in Chinese)
[5]张志呈.露天矿边坡工程的卸压隔振爆破技术研究及应用总结[R].广西:广西鱼峰水泥股份有限公司西南科技大学项目研究组,2011:4-6.
[2]张志呈.定向卸压隔振爆破机理与试验[J].科技资讯,2011(1):62-64.[2]ZHANG Zhi-cheng.Directional relieving pressure and vi-bration blasting mechanism and test[J].TechnologicalInformation,2011(1):62-64.(in Chinese)
[3]张凤元.集中药包空气间隔层爆破技术的应用[C]∥工程爆破文集.武汉:中国地质大学出版社,1997.[3]ZHANG Feng-yuan.Application of concentrated chargeair interlayer blasting technology[C]∥Engineering Blas-ting.Wuhan:China University of Geosciences Press,1997.(in Chinese)
[4]王树仁,魏有志.岩石爆破中断裂控制的研究[J].中国矿业学院学报,1985(3):56-57.[4]WANG Shu-reng,WEI You-zhi.Control in rock blastingresearch[J].Journal of China University of mining,1985(3):56-57.(in Chinese)
[5]张志呈.露天矿边坡工程的卸压隔振爆破技术研究及应用总结[R].广西:广西鱼峰水泥股份有限公司西南科技大学项目研究组,2011:4-6.
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