Rapid Wet Shotcreting Support Technology of Mine Rock Roadway

In order to realize a rapid shotcreting operation in the bolt and shotcreting support,a theoretical analysis and a site experiment method were applied.Bas ed on the wet shotcreting technology of the mine rock roadway in Xingtai Mining Area,with the improvement on the matched equipment and technique,a rapid wet shotcr eting operation in the bolt and shotcreting roadway was realized and the wet shotcreting speed was 30 m/d.The dust content in the bolt and shotcreting operation of the mine roadway was reduced and the rebounding rate was reduced to 12. 15%.Thus the operation environment was improved and the material consumption was reduced. The shotcreting material applied was 1.33 m3 per meter of mine roadway.The concrete compressive strength of the wet shotcreting technology was improved by 37% a nd could provide the theoretical and practical experiences to the promotion and application of the wet shotcreting technology in Xingtai Mining Area.