断裂爆破在汾西矿业集团的试验和应用

定向断裂爆破是利用聚能药卷改变巷道周边眼的装药结构,利用聚能作用控制裂隙的方向和数量,因而能获得较好的爆破效果。本文主要介绍了定向断裂爆破的机理以及在汾西矿业集团所进行的爆破试验的方案、爆破参数和试验结果。同时对使用聚能药卷前后的爆破效果进行了对比,结果表明,定向断裂爆破可明显提高巷道的成型质量,降低材料消耗。

EXPERIMENT AND APPLICATION OF DIRECTIONAL FRACTURING BLASTING IN FENXI MINING GROUP CORPORATION

The energy concentrating tube is used to change the charging structure of peripheral holes in the directional fracturing blastingThe energy concentrating effect of the tube is led to control the direction and amount of cracks,thus improving the effect of blastingIn this paper,the mechanism of directional fracturing blasting and the scheme,parameters and result of blasting test carried out in Fenxi Mining Group are introduced mainlyAt the same time,the comparison between blasting results before and after using directional fracturing blasting is doneThe comparison result shows that the directional fracturing blasting can improve configuration of workings and reduce the consumption of materials