1.Check the integrity of the feng shui pipeline, feeding pipe, Mortar Spraying Machine and even connections;
2.Mortar Spraying Machine that cables, pipelines, air ducts and various equipment at the shotcrete site should be properly Good protection and cover; use high-pressure wind and water to clean the sprayed surface;
3.Mortar Spraying Machine should comprehensively check whether the cross-section size of the roadway and the median waistline meet the design requirements, and set up five shot fairways;
4.The artificially dried mixture must be uniform, Mortar Spraying Machine should proportion is correct, and sieved twice.