论文部分内容阅读
目前煤矿井下巷道掘进施工中普遍采用钻爆法,要想达到理想的巷道造型,采用何种爆破技术至关重要。
At present, the drilling and blasting method is widely used in tunneling of coal mine tunnels. It is very important to adopt the blasting technique in order to achieve the ideal tunnel shape.