Hydraulic support for filling behind support

The utility model discloses a hydraulic support for filling behind the support. The hydraulic support comprises a two- or four-column shield-type hydraulic support body. The rear end of a top beam of the hydraulic support is additionally equipped with a rear telescopic beam, which is connected with...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CHENG YUNHAI, CHEN JIASHENG, WANG GUANDONG, FANG XIJIANG, LIN JIKAI, GUO XINSHAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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