Key Features for Tunnel Support:
High pumping capacity: Commonly 20–40 m³/h, suitable for medium to large tunnels.
Robotic spraying arm (manipulator boom): Ensures precise placement on tunnel walls and roofs, reducing rebound and improving safety.
Strong adhesion: Wet mix shotcrete bonds well to rock surfaces, making it effective for immediate support.
Dust reduction: Compared to dry spraying, the wet process significantly lowers dust levels inside the tunnel, improving working conditions.
Additive system: Allows use of accelerators for fast setting, crucial in weak ground or high-risk tunnel sections.
Remote control operation: Increases safety by keeping operators away from unsupported tunnel faces.
Applications:
Primary tunnel lining (immediate stabilization after excavation)
Final lining in smaller tunnels
Slope stabilization in portal areas
Underground powerhouse caverns and mining drifts
👉 Would you like us to also compare truck-mounted wet shotcrete machines vs. crawler-type compact shotcrete machines for tunnel support?
