In the initial stage of tunnel construction, the choice of support technology is directly related to the safety, environmental protection and economy of the project. In recent years, with the continuous advancement of tunnel construction technology, concrete wet spraying machine has been used more and more widely in the initial support of tunnels. Its high safety, high environmental protection, high efficiency and low cost characteristics are gradually becoming the preferred solution for the initial support of tunnel construction.

　　Safety: Building a lifeline

　　Concrete wet spraying machine adopts wet spraying process. Compared with the traditional dry spraying process, it can effectively reduce the dust concentration during the construction process and reduce the health hazards to construction workers. At the same time, wet spraying concrete has better adhesion and strength, can quickly form a stable support structure, and provide a safer working environment for tunnel construction workers.

　　Environmental protection: practice of green construction

　　During the construction process, the wet spraying concrete process greatly reduces the impact on the surrounding environment due to its low dust emission and low noise characteristics, which is in line with the concept of green construction in modern tunnel construction. In addition, the wet spraying process can effectively control the amount of concrete used and reduce material waste, further reflecting the practice of environmentally friendly construction.

　　High efficiency: accelerating the progress of the project

　　The wet spraying machine has a high degree of automation, can achieve continuous operation, and significantly improves the construction efficiency. The concrete of the wet spraying process is evenly mixed and has a fast spraying speed. It can complete a large area of ??support work in a short time, greatly shortening the tunnel construction cycle, and plays an important role in accelerating the progress of the project.

　　Low cost: significant economic benefits

　　The wet spraying concrete process also performs well in reducing construction costs. Due to its fast construction speed and high material utilization rate, it can effectively control costs. At the same time, the wet spraying process reduces dependence on labor, reduces labor costs, and improves the economic benefits of the entire tunnel project.

　　In summary, the application of wet spraying machines in the initial support of tunnels not only improves the safety and environmental protection of construction, but also significantly improves construction efficiency and reduces costs. It is a technological innovation in the field of tunnel construction. In the future, with the continuous advancement of technology, the role of wet spraying machines in the initial support of tunnels will become more prominent, providing a stronger guarantee for the safe, efficient and green construction of tunnel projects.