Reusable constant-resistance suspension top beam

The invention provides a reusable constant-resistance suspension top beam. The reusable constant-resistance suspension top beam comprises a recyclable top beam body and a constant-resistance yieldingdevice; the constant-resistance yielding device is fixed to the lower part of the recyclable top beam...

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Bibliographic Details
Main Authors GUO LINFENG, JIANG WENYUAN, LIU HONGTAO, QIN HONGYAN, ZHAO XIDONG
Format Patent
LanguageChinese
English
Published 15.01.2021
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Summary:The invention provides a reusable constant-resistance suspension top beam. The reusable constant-resistance suspension top beam comprises a recyclable top beam body and a constant-resistance yieldingdevice; the constant-resistance yielding device is fixed to the lower part of the recyclable top beam body, the recyclable top beam body comprises a box type top beam body and a cutter, the box type top beam body is tightly attached to surrounding rock, a protection space is formed in the box type top beam body, an anchor cable penetrates through the box type top beam body and is anchored on the surrounding rock; and the shearing device is arranged in the protection space of the box-type top beam body, arranged at the exposed end of the anchor cable in a sleeving mode and used for shearing theanchor cable so that the constant-resistance suspension top beam can be recycled. The recyclable top beam not only plays a role in maintaining the surrounding rock through a conventional top beam, but also achieves recycling
Bibliography:Application Number: CN202011197549