METHOD AND A DEVICE FOR GUIDING A CONCRETE FEEDING HOSE IN CONNECTION WITH THE GROUT FEED IN ROCK BOLTING

摘要

Abstract of the disclosureThe invention relates to a method and a devicefor guiding a concrete feeding hose in connection withthe grout feed in rock bolting. The concrete feeding hoseis therein passed by means of a feeder from a reel intoa guide head supported on a feeding beam of a drillingequipment and further through the guide head into a holedrilled in the rock, and is passed back on to the reelin proportion as the hole is filled. In order to protectthe feeder of the concrete feeding hose against dirt andmechanical damage, the concrete feeding hose is pushedinto the guide head through a flexible guiding means.