Tunnel excavation section supporting structure

The utility model discloses a tunnel excavation section supporting structure which comprises a steel arch and a reinforced concrete layer. Bases are arranged at the two ends of the bottom of the steel arch, a bottom supporting assembly is detachably arranged between the two bases and comprises two b...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WANG YETAO, PEI JIAFENG, WEI XIAOHANG, TIAN XIAOXU, WANG ZHENG, ZHUANG DEQUAN, ZHANG YUWEI, SONG ZHANPING, WANG FUHUA, DING LIBO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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