绿春坝隧道高边坡危岩体处理

On treatment of dangerous rock body of high slopes at Lvchunba tunnel

为消除隧道洞口上方高大边坡危岩体对隧道施工的影响,从控制危石处理过程中可能出现飞石、滚石等情况的角度出发,对施工爆破方案进行了比选,重点介绍了露天台阶倾斜深孔爆破技术及安全防护措施,以确保处理后的边坡满足铁路运营期间的稳定与安全。

In order to eliminate the impact of the dangerous rock body of upper high slopes at entrances of caves,the paper undertakes the comparison of the construction blasting schemes from controlling the slungshots and rolling stones in the treatment process of the dangerous rocks,and mainly introduces the inclined deep-hole blasting technique and safety protection measures of the open-air stages,so as to ensure the slope after the treatment to meet the demands of the stability and safety during the railway operation period.