Self dri1ling hollow rockbolt
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The anchor rod is composed of a solid rod body at the front end and a hollow rod body at the rear end. The hollow rod body and the solid rod body are combined through a connecting sleeve, and the connecting sleeve is provided with a slurry arrester; the inner hole of the connecting sleeve is connected with the hollow rod body cavity with a lateral hole channel; the supporting plate, nut and washer are matched with the rear end of the hollow rod body; the supporting plate is provided with a hole channel, and a pipe through the supporting plate.
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