The tunnel wet shotcrete machine is one of the most effective tools for reducing dust, minimizing rebound, and saving materials in both domestic and international applications for tunnel construction. Wet shotcrete machines are widely used in engineering projects…

With the rapid development of tunnel construction technology, various construction methods have been widely applied in tunnels, especially in railway and highway tunnels. Wet spraying, without a doubt, is a product of tunnel development. However, small wet spraying machines have gradually shown their shortcomings in tunnel projects, mainly manifested in low operational efficiency, high component failure rates, and large manpower and equipment inputs. Currently, large-scale engineering projects require the use of large wet shotcrete machines, which are also the future trend in tunnel construction. The efficiency of these machines is equivalent to that of a dozen small wet spraying machines. In the process of tunnel construction, wet spraying technology has been vigorously promoted, and large concrete wet shotcrete machines have been widely applied, gradually becoming the mainstream method of tunnel construction.…