Section roadway advance support device

The utility model discloses an advance support device for a section roadway. The device comprises a support frame and hydraulic props, a supporting frame is fixedly connected to the upper portions ofthe hydraulic supporting columns. I-shaped steel beams are fixedly arranged on the two sides of the u...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GAO FUPING, SHEN CHANGJI, ZHANG CHAOHUA, WU YUE, FANG QIAN, HAO WEIWEI, JI ZHIQIANG, ZHAO WENJIN, YAN HONGFEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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