麻武高速大别山隧道出口洞顶危石稳定性评价及开挖方案探讨  

Discussion of Stability Evaluation of Unstable Rock Mass at Dabie Mountain Tunnel and its Excavation Program in Mawu Highway

作　　者：赵桂林 程康[2] 陈庄明[2] 

机构地区：[1]湖北路桥集团有限公司,武汉430056 [2]武汉理工大学土木工程与建筑学院,武汉430070

出　　处：《爆破》2010年第3期45-47,共3页Blasting

摘　　要：介绍了危石稳定性评价方法。采用危石爆破垂直振动最大速度作为评判标准,对隧道爆破掘进危石的稳定性进行了分析探讨,提出了确保危石安全稳定下的隧道爆破掘进参数。实践表明,爆破参数合理,危石在施工中安全稳定,说明这种方法可行。In this paper,the method of stability evaluation of the unstable rock mass was introduced.The maximum vertical vibration velocity was used as evaluation criteria for analyzing the tunnel blasting on the stablity of unstable rock mass,and putting the parametes of safty blasting exvacation.It is resulted that the blasting parameters are reasonable and this method is feasible.

关 键 词：爆破掘进 危石 稳定性 隧道 

分 类 号：TD235.36[矿业工程—矿井建设]