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Shotcrete machine is well known in the construction machinery industry in the application is very broad, it appears a lot of people to make a contribution, and now the spraying machines are high-tech, intelligent technology, it can not be done manually can be completed work. Shotcrete machine province is a new and efficient spraying machinery, it is also more extensive workplace, for example, mines, tunnels, culverts, subway, hydropower engineering, underground engineering and high marsh coal mine tunnel shotcrete construction operations. In particular, special attention is to work in the pit slope time before work to check the slope first geological conditions According to the slope of pit slope geology spraying machine is based on the circumstances, the general use of 1: 0.5 to 1: 1, the base dug to close to the design elevation, retain 0.3m thick layer, to be filled with concrete by hand before excavation to the design elevation, rapid test, then the basis for the construction. If that is to be provided between the base through the roof, roof and sidewalk pit must be 1m wide berm, but also set up drainage ditches in the excavation pit the top surface to prevent surface water flowing into the construction process. When the grading excavation, digging the first to release before the excavation sideline calculated plane point to be ready all work is completed, you can start digging, excavation at the time of such use mechanical excavation saving manpower and material resources. Moreover, when the excavation area grading excavation leaving about 80cm on each side of the face, in the steel sheet pile retaining excavation and protection, you can dig down along the sheet pile, according to the site after the excavation is completed surrounded by water seepage in the basement Set drains and sumps, after excavation of dangerous rock excavation around the treated nets were hung shotcrete treatment when necessary.
