Application of Shotcrete Spraying Machine in Tunnel and Underground Engineering

Project Background

In the Sichuan Road & Bridge Zijing Tunnel Entrance Project, Aivyter Shotcrete Spraying Machines (AWT3016F and AWT20) and intelligent air compressors were deployed to ensure safety, efficiency, and environmental protection. The project highlights the significant advantages and energy-saving effects of using shotcrete spraying machines in tunnel and underground construction.

Functions and Advantages of Shotcrete Spraying Machine

1. Functions of Shotcrete Spraying Machine

The shotcrete spraying machine is widely used for concrete reinforcement in tunnels, subways, mines, and other underground works. It pumps wet-mix concrete to the nozzle, where it is sprayed with compressed air onto surfaces to form a uniform, stable concrete layer.

2. Main Benefits

• Concrete Support and Reinforcement:
  • Ideal for tunnel support, mine shaft stabilization, subway lining, and culvert reinforcement.
  • Prevents rock collapse and improves construction safety through effective concrete layering.
• Reduction of Dust Pollution:
  • Wet spraying significantly lowers dust levels compared to dry spraying methods.
  • Protects worker health and complies with environmental regulations.
• Improved Construction Quality and Efficiency:
  • Wet spraying delivers stronger bonding, uniform thickness, and a rebound rate of less than 15%.
  • Supports large-scale, continuous, and long-distance operations with high efficiency.
• Energy Saving and Environmental Protection:
  • Integrates with intelligent air compressors to reduce power consumption and concrete waste.
  • Complies with China’s 2024–2025 Energy Conservation and Carbon Reduction Action Plan.
• Adaptability to Complex Environments:
  • Compact design enables mobility in narrow tunnels and rugged geological conditions.

Contact Us

If you’re seeking a high-performance, energy-efficient solution for underground shotcrete applications, Aivyter is here to help. Our AWT20 and AWT3016F Shotcrete Spraying Machines are designed to meet the challenges of modern tunnel engineering.

📩 Contact Our Team