Rich water sandy gravel stratum slurry shield tunnelling is protected footpath and is made up sword

The utility model relates to a shield constructs construction field, specifically is a rich water sandy gravel stratum slurry shield tunnelling is protected footpath and is made up sword. It is frequent to have solved the tool changing of current rich water sandy gravel stratum slurry shield tunnell...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CHANG XIN, WU MINGJING, ZHAO XIANGPING, WANG ZONGYONG, LIU WENDUN, AN HONGBIN, LI XIAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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