Study on Shallow Tunnel Blasting Excavation and Vibration Controlling

摘要：

Based on the practice of Huo Langyu tunnel of Mixing road reconstruction, this paper studies the monitoring of ground surface vibration and the technology of controlled blasting. The results show: (1) the ground surface vibration decline from constructed position to non-excavated areas along tunnel excavation direction. (2) The vibration control of wedge cutting holes blasting is the key to reduce or eliminate shallow tunnel vibrating calamity. And the replacement of the multi-stage small wedge cutting holes to the big wedge cutting holes ameliorates blasting vibration and rock fragmentation. (3) The overall monitoring of shallow tunnel boring blasting vibration and the effects, and optimum of the blasting design not only reduce blasting vibration but also ensure large circulation footage.

作者: GAO Wenxue YAN Pengcheng LI Zhixing WEI Pengwei HOU Binghui

作者单位: Beijing University of Technology, Beijing, 100124, China Key Lab of Urban Security & Disaster Engine Beijing University of Technology, Beijing, 100124, China Beijing Roads and Bridges Construction Group Corporation Limited, Beijing, 100068, China

会议类型: 国际会议

会议名称: The 3rd Asian-Pacific Symposium on Engineering Blasting and the International Conference on Physical Problems of Rock Destruction(第三届亚太地区爆破技术研讨会暨第七届岩石破碎物理问题国际会议)

会议地点: 厦门

会议语种:英文

页码: 379-382

在线出版日期: 2011-08-10（万方平台首次上网日期，不代表论文的发表时间）