Using a wet robotic shotcrete machine for tunnel construction is considered very safe for several reasons:
Minimized Human Exposure:
Reduced Manual Labor: Traditional shotcrete application requires workers to manually operate equipment in confined spaces, exposing them to various hazards such as falling rocks, concrete rebound, and respiratory issues from dust and fumes. Robotic machines reduce the need for human presence in these dangerous areas.
Remote Operation: Robotic machines can often be operated remotely, keeping workers at a safe distance from the immediate construction zone, thus reducing the risk of injury from cave-ins, falling debris, or equipment malfunction.
Consistent Quality and Precision:
Accurate Application: Robotic shotcrete machines can apply concrete with high precision, ensuring even and thorough coverage. This reduces the risk of weak spots that could potentially lead to structural failures.
Controlled Environment: The machine can maintain consistent pressure and flow rates, which contributes to the overall stability of the tunnel lining.
Safety Protocols: These machines often come with built-in safety protocols to shut down automatically in case of a malfunction, preventing accidents.
Improved Working Conditions:
Reduced Dust and Noise: Wet shotcrete generates less dust compared to dry shotcrete, improving air quality and reducing the risk of respiratory issues for workers.
Lower Noise Levels: Automated machines typically produce less noise than manual operations, contributing to a safer and more comfortable working environment.
Efficiency and Speed:
Faster Application: Robotic shotcrete machines can work faster and more efficiently than human labor, reducing the time workers spend in potentially hazardous conditions.
Continuous Operation: These machines can operate continuously without fatigue, maintaining consistent safety standards throughout the project duration.
