Water sump channel wall expanding and reinforcing structure

The utility model discloses a water sump channel side expanding and reinforcing structure which comprises a base, the top of the base is fixedly connected with a side support through a bolt, the base is fixedly connected with a rotating frame, the rotating frame is movably sleeved with an overturnin...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	GAO WEI, LI DONGWEI, GUO YONGQIANG, LIU JIANJUN, BIAN YANJUN, ZHANG ZHENGWU, WANG LIBO, DU LIJUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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