In the "Several Opinions on Further Strengthening the Quality and Safety Supervision of Tunnel Projects" issued by the Ministry of Transport of China in September 2013, it is clearly pointed out that new mechanical equipment for tunnel construction should be widely used. At the same time, in the "high-speed railway tunnel engineering construction technical guidelines" clearly stipulates that shotcrete should use wet spray technology.

With the rapid development of the national economy, the proportion of newly built railway and highway tunnel projects is increasing, and the technical difficulty is increasing. In order to accelerate the construction of the project, it is necessary to rapidly improve the technical level of tunnel mechanization construction.

Wet spray manipulator is a typical tunnel construction machine. Compared with the construction technology of the traditional small wet spraying machine, the concrete wet spraying trolley has the advantages of flexible operation, fast, convenient, economical and safe. The characteristics of the whole can not only overcome the shortcomings of traditional construction technology, but also save energy and reduce emissions, realize the construction of ecological civilization, and make the injection operation a big step forward. Screening out the concrete wet spraying machine with fast firing rate, high mechanization degree and low rebound rate is the mainstream technology of highway and railway tunnel construction.

The concrete wet spraying trolley is a large tunnel initial support concrete spraying manipulator combining special vehicle chassis or engineering chassis with concrete spraying machinery. It has significant advantages such as large spraying surface, fast speed, small operation dust, less spraying rebound, saving raw materials, fast spraying quality, fast transfer and convenient maintenance. Concrete wet spraying trolley is widely used in water conservancy and hydropower, highway, railway, underground powerhouse, underground military engineering and other underground engineering fields and various slope protection concrete spraying construction.

The cement machine is the core equipment for wet shotcrete construction, which is widely used in tunnel, construction, municipal, railway, mine and other related shotcrete support projects. Due to the continuous development of tunnel construction technology, the tunnel engineering quality, operation safety. The requirements of the whole, occupational health and other aspects continue to improve, in the various processes of tunnel construction began to gradually use mechanized equipment instead of manual labor, concrete wet spraying machine has become the mainstream equipment of shotcrete support.

The cement wet spraying manipulator is designed to respond to the needs of domestic tunnel mechanization construction and to meet the requirements of efficient and environmentally friendly construction of domestic tunnel concrete spraying operations. Cement concrete wet spraying machine has the characteristics of high degree of automation, large spraying range, stable performance, simple operation, reliability, high production efficiency, less rebound, and good construction quality. Especially for large and small tunnels, effective wet spray operation can greatly save manpower and material costs, shorten the construction period and improve construction efficiency.

The use of concrete wet spraying machine greatly improves the construction efficiency, only 2 to 3 people can operate, and the degree of automation is very high. Compared with the ordinary wet spraying machine, the concrete wet spraying machine has obvious advantages in construction efficiency. For the same amount of construction, it can be completed in a shorter time, and less construction personnel are required.

In addition, the operator of the concrete wet spraying machine can realize 360-degree initial support of the concrete by holding the remote controller, avoiding accidents such as stone falling, splashing and scratching on the surface of the palm, reducing the contact between the operator and the concrete, thus realizing the early support of the concrete, thus avoiding accidents such as stone falling, splashing and scratching on the surface of the palm, and reducing the contact between the operator and the concrete, so as to reduce the dust concentration in the tunnel, so as to ensure the safety of the tunnel. Full.

In the initial support of the tunnel, the application of the concrete wet spray manipulator plays an important role, which can improve the construction effect and improve the overall quality of the project. With the continuous improvement of tunnel engineering quality and construction efficiency, the tunnel construction equipment will be promoted to develop in the direction of integrated and systematic, and the concrete wet spraying machine is more and more used in the mechanized tunnel construction.