I-STEEL CHOCK FALL PREVENTING DEVICE FOR DRIFT MINE

I-STEEL CHOCK FALL PREVENTING DEVICE FOR DRIFT MINE

The utility model provides an H-shaped steel support bracket fall preventing device for a tunnel, belonging to the technical field of erecting a shed for support in the tunnel. The utility model is characterized in that the fixed ends of baseplate and movable pressing plates are firm fixed on the le...

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Hauptverfasser: RONG WENQI, ZHANG FAN
Format: Patent
Sprache:eng
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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creator RONG WENQI
ZHANG FAN
description The utility model provides an H-shaped steel support bracket fall preventing device for a tunnel, belonging to the technical field of erecting a shed for support in the tunnel. The utility model is characterized in that the fixed ends of baseplate and movable pressing plates are firm fixed on the legs of an H-shaped steel support bracket through fixed wedges which are wedged in fixed rings; neighbouring H-shaped steel support brackets are fixed through connecting plates which are fixed through locking wedges for prevents the support brackets collapsing because of exploded falling rocks and for reliably guaranteeing a shed distance. The utility model has the advantages of simple and reliable structure, easy production, convenient installation and disassembly.
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subjects EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
title I-STEEL CHOCK FALL PREVENTING DEVICE FOR DRIFT MINE
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