定向爆破筑坝技术的应用  

Directional blasting technology applied in dam build-up

作　　者：郜志明 

机构地区：[1]中冶北方工程技术有限公司,辽宁鞍山114001

出　　处：《矿业工程》2012年第2期34-35,共2页Mining Engineering

摘　　要：介绍了木梓沟尾矿库定向爆破筑坝设计在环境复杂的条件下,进行药室优化布置、爆破参数选择、确定多段微差起爆顺序等方面的内容,实现了一次爆破49万m3实方,上坝率63%,有效地控制了飞石、震害和破坏范围。The geological conditions of Muzigou tailings dam site are complicated. To achieve good performance of directional blasting, the blasting chamber design is optimized, and the suitable blasting parameters and suitable blasting sequence of multistage short delay detonation are selected. Then, once blasting has achieved 490 000 m^3 earth and stone blasted of which 63% is stockpiled on dam. The flying stones, vibration strength and blasting damage range are effectively controlled.

关 键 词：定向爆破 最小抵抗线 爆破网路 起爆顺序 

分 类 号：TD235.373[矿业工程—矿井建设]