平巷深孔筒形掏槽方式的模拟试验研究

RESEACH ON SIMULATED TEST OF DEEP-HOLE CYLINDER CUT WAYS IN DRIFT

在分析现有平巷及隧道深孔爆破掘进掏槽方式的基础上，提出了筒形掏槽或孔内微差分段掏槽方式，并进行了实验室模拟试验和爆破机理的研究。试验结果表明，孔内微差分段掏槽优于筒形掏糟。

Method of cylinder cut or cylinder cut of ms blasting in borehole is proposed on the basis of analysing cut ways used in driifting andtunneling deep-hole blasting. The blasting mechanism is investigated through a series of simulated test. Test shows that the blasting effect of cylinder cut of ms blasting in borehole is better than that of cylinder cut.