利用地质构造调查方法确定裂隙岩体爆破最小抵抗线方向

Determining the direction of burden in crack mass blasting using geological survey method

利用地质构造调查方法,找出裂隙岩体在结构面切割作用下形成的菱形体,确定菱形块体最短轴方向为岩体爆破最小抵抗线方向,该方法已在矿山生产中得到实际应用,能有效改善爆破效果,可为类似裂隙岩体爆破工程确定最小抵抗线方向提供指导。

Using geological structure survey method, it found out the diamond-shaped body which be made by structural plane cutting in crack mass, and determined the diamond shaped body shortest axis direction with the direction of burden for rock blasting. This method had been applied to mine production, and improved the blasting effect obviously,it can make a guide to determine the direction of burden in crack mass for blasting other similar engineering.