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:
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