When excavated, the tunnel is further strengthened and secured for both continued work and for future operation. The rock reinforcement stabilizes the ground and extends the natural arch of
the rock. The reinforcement prevents further loosening of rock mass and reduces rock deformation caused by further excavation.
– Rock strengthening through rock bolting
– Thin Structural Liners (TSL)
– Cavity filling to eliminate future ground movement
– Injection sealing to reduce influx of water and to prevent ground
movement in cracks