鱼刺起爆法在东露天1437台阶的应用

The application of fish bone type explosion method in the terrace 1437 of east open quarry

针对东露天1437台阶爆破区域子弹头形状的地形特点,作者独创的鱼刺起爆法对传统的V形起爆法进行了一些改进,使得先爆炮孔为后爆炮孔多创造了新的自由面,减小了后爆炮孔的抵抗线和爆破夹制作用,改善了爆破效果,使爆堆容易向着爆区中心线集中,便于铲装,减少了辅助作业量,提高了工作效率和矿山经济效益,并以相对较少的药量获得同段装药时的效果,同时矿石在空中互相碰撞的机率增大,产生的飞散物减少,保证了爆破的安全实施,为后期大量类似条件的采矿爆破提供了实践经验。

Referring to the sub warhead land form feature of the terrace 1437 of east open quarry,the fish bone type explosion type innovated by the author makes an improvement upon the traditional V type explosion method,the earlier esplosion hole making new free surface for the later one,reducing the function of counteract line and explosion clipping by the later explosion hole and improving the explosion results.It also makes the exploded rock easily run to the center line of explosion zone,facilitating the loading,increasing the working efficiency and economic benefits of mine,achieving the same results with little explosive,incrasing the collision opportunity of rock in the air,reducing the amount of flying rock,ensuring the safety of explosion and providing reference for similar explosion mine.