Test of Expanded Shell End Anchor Hollow Grouting Cable Support in the Fractured Rock Roadway of Xincheng Gold Mine
In view of the complicated construction process and poor bearing capacity in the early stage of maintenance of the existing cement grouting anchor cable,the expanded shell end anchor hollow grouting cable support is used to reinforce and support the deep broken surrounding rock roadway of Xincheng Gold Mine.In order to verify the supporting ability and effect of this support method,underground industrial tests were carried out in the footplate transport lane in the middle section of 9-3 and the uphill section of the ramp in the middle section of 9-8 in Xincheng Gold Mine.The test results show that the anchorage force of the hol-low grouting anchor cable with the expanded shell end anchor is about 310 kN,and the supporting effect is better than that of the traditional grouting anchor cable.
expanded shell end anchor hollow grouting cable supportpretightening forcefull-length anchorage
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维普
