Emergency rush repair of 109 tunnel: with steel hollow bar anchor bolts
No. 109 Tunnel belongs to Baoji-Chengdu Railway.
At 14:28 on May 12, 2008, an 8.0 grade earthquake was occured in Wenchuan, Sichuan. The mountain rocks were collapsed and hit No. 21043 train in the 109 tunnel. With 500 tons of aviation fuel, the train was catching fire. The department sent rescue team immediately.
Fire in 109 Tunnel
We participated the emergency repair of 109 tunnel and related railway section. Thanks to the high efficiency of self-drilling anchor installation, the maintenance process of tunnel was quick. And the railway was reopened at 10:31 on May 13.
Emergency rush repair of 109 tunnel
It is generally known that hollow bar anchor is a kind of efficient tools in the applications of mining, tunneling, soil nailing and micropling. However, most attentions focus on the easy handing and quick installations of hollow bar anchors, but the safety performance is often ignored. People need an early warning if disaster would happen.
The best thing is that disasters never happen. But infrastructure should be more reliable, not only more beautiful.