城市硬岩隧道挂齿爆破防护技术探讨  

Caving Hard Rock Tunnel by Blasting in the City:Safety Techniques

作　　者：周余奎[1] 马建军[1] 刘智权[1] 

机构地区：[1]武汉科技大学理学院,湖北武汉430081

出　　处：《武汉科技大学学报》2005年第3期257-260,共4页Journal of Wuhan University of Science and Technology

摘　　要：通过总结城市硬岩隧道挂齿开洞爆破防护的经验教训,分析控制这种近距离大药量爆破飞石危害的几种防护技术与对策,讨论爆破冲击波和飞石对防护体的冲击力问题,并提出了适用于近距离大药量的爆破防护方案,该方案更加经济合理。By summing up the experience of caving hard rock tunnel by blasting in the city, this paper analyses the technical measures to control flying stones in blasting. It discusses the shock wave of blasting and the impact force of flying stones on defence body. On this basis,it has put forward a feasible safety scheme for close- distance powerful blasting ,which is more economical.

关 键 词：近距离 城市硬岩隧道 防护技术 爆破灾害 

分 类 号：TD235.37[矿业工程—矿井建设]