Here's why it's essential:
Primary Tunnel Lining:
Wet shotcrete is used for immediate tunnel wall support after excavation.
It prevents rock falls and stabilizes the surrounding ground.
Fast Setting & Strong Bonding:
Using accelerator additives, it hardens quickly, allowing safe and continuous work.
Efficient Dust Control:
Compared to dry shotcrete, the wet process produces much less dust, improving visibility and worker safety inside tunnels.
Uniform Quality:
The mix is prepared before pumping, ensuring consistent concrete strength and better surface finish.
Compatibility with Mechanized Equipment:
Wet shotcrete machines can be combined with robotic arms or manipulators for precise spraying, especially in large tunnel projects.
In short - for modern tunneling, a wet shotcrete system is indispensable for both safety and efficiency.
Would you like us to list the specific types of wet shotcrete machines commonly used in tunnels (e.g., robotic type, truck-mounted, or skid-mounted)?
