华福公路隧道仰坡防护自钻式锚杆应用技术

The application technique of self-drilling anchor pile for front slope protection in Huafu highway tunnel

结合工程概况和地质情况,通过对出口仰坡情况的分析,提出了出口处理方案,并对自钻式锚杆的作用、施工工艺及施工中相关注意事项进行了阐述,以供类似工程参考借鉴。

Combined with engineering and geologic conditions,the author proposes treatment scheme of tunnel exit through analyzing the condi-tion of front slope at the exit,and illustrates the function and construction technology of self-drilling anchor pile and relevant notices in its con-struction,in order to offer a reference for similar construction.