What should you pay attention to when spraying concrete with a wet spray machine for tunnel works?
After the tunnel has just been dug, the worker will, in accordance with the instructions of the measurement, place some of the steel arches that are made in front of the tunnel to the designated position.
And then put the gap between the two arches put steel mesh and welded, lateral also into the bolt.
The purpose of this is to make the steel frame and the tunnel rock and concrete to form a whole, common force.
Therefore, this process needs to be noted that it is necessary to spray evenly, and leave no gaps.
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