Smooth sprayed concrete support structure for deep mine roadway of coal mine
A technology of shotcrete and deep tunnels, applied in tunnels, shaft linings, tunnel linings, etc., can solve the problems of easy missed inspection, relying on observation, smashing miners, etc., to prevent further deterioration, reduce the requirements for observation, and improve practicality. sexual effect
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[0035] The following describes the technical solutions in the embodiments of the present invention clearly and completely with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention; not all the embodiments. Based on the embodiments of the present invention; all other embodiments obtained by those of ordinary skill in the art without creative work; all belong to the protection scope of the present invention.
[0036] See Figure 1-13 , A smooth shotcrete supporting structure for a deep coal mine roadway, comprising a combined arch structure 1, on which a U-shaped arch 2 is provided.
[0037] The combined arch structure 1 includes a roadway rock layer 11, a concrete leveling layer 12 is provided on the inner wall of the roadway rock layer 11, a metal mesh 13 is provided on the inner wall of the concrete leveling layer 12, and metal bolts 14 and grouti...
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