Mining roadway advance support method

The invention provides a mining roadway advance support method. The support method comprises the following steps that S1, anchor holes are drilled in a roof rock stratum of a mining roadway, anchor cables are installed in the anchor holes, and the anchor cables extend out of the roof rock stratum; S...

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Bibliographic Details
Main Authors GUO LINFENG, JIANG WENYUAN, LIU HONGTAO, QIN HONGYAN, ZHAO XIDONG
Format Patent
LanguageChinese
English
Published 09.02.2021
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Summary:The invention provides a mining roadway advance support method. The support method comprises the following steps that S1, anchor holes are drilled in a roof rock stratum of a mining roadway, anchor cables are installed in the anchor holes, and the anchor cables extend out of the roof rock stratum; S2, recyclable top beams are installed on the portions, exposed out of the roof rock stratum, of theanchor cables, and the recyclable top beams penetrate through the anchor cables to be tightly attached to the roof rock stratum; S3, constant-resistance yielding devices are installed on the portions,exposed out of the recyclable top beams, of the anchor cables, and the constant-resistance yielding devices press the recyclable top beams on the roof rock stratum; and S4, after the anchor cables, the recyclable top beams and the constant-resistance yielding devices are used up, the anchor cables are cut off through the recyclable top beams so as to recycle the constant-resistance yielding devices and the recyclable top
Bibliography:Application Number: CN202011193123