Let us learn together about the operation precautions of shotcrete machine: Before using the shotcrete machine, first net, bolt loosening, anchor plate does not stick to the rock surface, the net cut open shattered gangue, and the network would be connection. Loose nut, the net side help financially (top), the bolt does not play the role to re fill play and lack of mesh locations to padded mesh. To flush the surface by shotcrete machine with high-pressure spray to ensure that the spray jet body and face with tight. Control good water ash ratio, spray with material non white, not flowing, shiny surface is appropriate. Guniting operation is performed by two people, in the construction process of two people to cooperate closely, found problems in a timely manner, jet hand to control the water cement ratio, the material ejected white, flowing, surface gloss is appropriate. When spraying, to grasp the spray angle and spray nozzle distance to vertical rock surface. According to the general injection order from bottom to top and forward. When spraying machine blowing, must be fixed to prevent the nozzle, the nozzle swings. The nozzle are not facing the people under any circumstances. All kinds of high pressure spray, the pipeline must be firmly connection. There must be someone to monitor safety during construction shotcrete.