Vibration Performance of Steel Fiber Concrete Tunnel Lining by Adjacent Tunnel Blasting Construction

When constructing tunnels in mountainous areas, the drilling and blasting method is most commonly used because of its economy. Ordinary reinforced concrete itself has defects such as poor crack resistance brittleness. Therefore, when using for ordinary double-line tunnels, vibration phenomena will occur cause cracks first-line which have adverse effects on durability safety tunnel. As a response, scholars proposed use steel fiber-reinforced tunnel lining. In this paper, LS-DYNA software to establish three models plain concrete, numerical analysis conducted with different amounts explosives. The results show that lining better performance than other two concretes construction.