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...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
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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Beschreibung
Zusammenfassung: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.