Here's a breakdown of the advantages and applications of this type of machine:
Key Features and Advantages
Crawler Base for Rough Terrain
Enhanced Stability: The crawler tracks offer superior stability compared to wheeled chassis, especially on uneven or sloped ground. This stability is crucial in tunnels, where surfaces can be irregular and often damp or slippery.
Adaptability: The crawler base allows the machine to navigate rough terrain, mud, and slopes, making it versatile for underground and outdoor projects.
Reduced Ground Pressure: Crawler tracks distribute weight more evenly than wheels, reducing ground pressure and allowing the machine to work in areas where ground conditions may be soft or unstable.
25m Robotic Arm for Extended Reach
High Reach: A 25m robotic arm can cover tall tunnel ceilings and far-reaching surfaces, reducing the need to reposition the machine frequently.
Precision Control: Robotic arms provide precise control, allowing operators to apply shotcrete accurately, even in confined or hard-to-reach sections.
Flexibility in Motion: The robotic arm is typically multi-jointed, enabling flexible movement across multiple axes for targeted shotcrete application along complex or curved tunnel walls.
Wet Shotcrete Application
High-Quality Concrete Mix: The machine is designed for wet shotcrete, which uses a pre-mixed concrete solution that can be applied immediately, reducing dust and rebound and ensuring better adhesion.
Efficient and Consistent Application: The wet shotcrete process offers a uniform application, essential for structural stability in tunneling and mining. It adheres well to uneven rock surfaces, creating a smooth, reinforced layer.
Enhanced Safety and Control
Remote or Automated Control Options: Many crawler-type shotcrete machines are equipped with remote control or automation options, allowing operators to maintain a safe distance from the work area.
Stability Sensors: Some models come with stability sensors or leveling features to keep the machine balanced on rough terrain, reducing the risk of tipping, especially when the arm is extended.
Heavy Load-Bearing Capacity
Built for High Load: The crawler base and robust chassis are designed to support the weight of a large robotic arm and concrete pump, allowing for extended operation without compromising stability or performance.
Continuous Operation: These machines are engineered to handle extended shifts, making them reliable for large-scale tunneling projects requiring constant shotcrete application.
Applications
Tunnel Excavation and Support
Perfect for three-step tunnel excavation, where a tall, flexible arm can reach different sections of the tunnel walls and ceilings without requiring repositioning.
Useful for creating reinforced layers on tunnel surfaces to prevent rockfall and enhance structural integrity.
Mining Operations
The crawler base allows for deep mining work where roads are often unpaved or uneven.
Wet shotcrete application can be used to stabilize rock walls and ceilings, reducing the risk of collapse in underground mines.
Slope Stabilization and Large Infrastructure Projects
Ideal for stabilizing steep rock faces, cliffs, or slopes in civil engineering projects like dams, bridges, and highways, where high-reach shotcrete is necessary for safety.
Summary
A crawler-type shotcrete machine with a 25m robotic arm combines the mobility and stability of a crawler base with the high reach and precision of a robotic arm, making it an essential tool for complex tunnel construction and mining projects. This setup is optimized for working on uneven terrain and offers flexibility, high performance, and safety in environments where traditional wheeled shotcrete machines may not perform as effectively.
