Study of Tunnel Perimeter Blasting on Fracture Zones
From the basic characteristics of rock fracture destruction, the mechanism of rock blasting into seam was discussed Based on the joint mechanism of explosion stress wave and explosive gas driving crack propagation, the blasting effect with cut pipe charge on fracture zones was studied, and the test results were used in Qingzang railway Cuanjiao tunnel. From the observation and analysis of surrounding rock after blasting, the results show that perimeter holes with cut pipe charge can improve the super owe dig on fracture zones obviously.
GAO Fuqiang HOU Aijun YANG Xiaolin LU Yaobang
Department of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang, 471023, China School of Civil Engineering, Henan Polytechnic University, Jiaozuo, Henan, 454000, China
国际会议
厦门
英文
229-232
2011-08-10(万方平台首次上网日期,不代表论文的发表时间)