With the continuous improvement of construction efficiency and quality requirements of tunnel projects, wet spraying manipulators are increasingly widely used in tunnel construction, reflecting their unique advantages.
The application of wet spraying concrete technology and wet spraying manipulators has gradually become an important technical means in tunnel construction (Figure 1)
Wet spraying concrete technology has many significant advantages in the initial support construction of tunnels:
High safety factor: wet spraying concrete technology reduces the need for high-altitude operations and reduces the risk of workers being injured.
Low dust volume: Traditional dry spraying concrete will produce a lot of dust, while wet spraying technology greatly reduces the generation of dust, which helps to protect the health of workers.
High concrete strength: The material ratio of wet spraying concrete is more scientific, and the strength of concrete after construction is higher, ensuring the structural safety of the tunnel.
Low rebound rate: The rebound rate of wet spraying concrete is low, which reduces material waste and improves construction efficiency.
Stable quality: The material of wet spraying concrete is uniform during the construction process, avoiding the problem of unstable quality caused by material separation of dry spraying concrete.
Compared with traditional manual construction, the concrete wet spraying manipulator has the following significant advantages:
Flexible movement: The wet spraying manipulator can operate flexibly in a narrow tunnel space, covering a wide construction range with almost no dead corners.
High construction efficiency: The use of the manipulator greatly improves the construction efficiency, shortens the construction period, and reduces the project cost.
Improve the working environment: The manipulator operation reduces the chance of direct contact with harmful substances by humans, improves the working environment of workers, and protects their health.
Improve construction quality: The manipulator sprays concrete more evenly and meticulously, avoids quality problems caused by manual operation, and improves the consistency of construction quality.
In the initial support concrete construction of the tunnel, the use of wet spraying machines greatly improves the construction environment and ensures the safety and health of the operators. This construction method not only requires fewer operators and reduces the loss of materials, but also conforms to the concept of environmentally friendly construction, and gradually becomes an important technical means in tunnel construction.
The application of wet spraying concrete technology and wet spraying manipulators not only improves the environment of the initial support construction of the tunnel, ensures the health and safety of the construction workers, but also improves the construction efficiency and quality, which conforms to the green, environmentally friendly and economical concepts of modern tunnel construction.