Self-expansion locking anchor pipe

The utility model belongs to the technical field of tunnel engineering, and particularly relates to a self-expansion locking anchor pipe. The device consists of an anchor pipe and arch frame fixed connection end, a universal joint, a double nipple threaded sleeve, a hollow anchor pipe with a protect...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CHEN MING, ZHOU LINCHUN, LI JIANBO, LIU JIANGTAO, CHANG SHUAIBIN, CHANG SHUAIJUN, WEI WEI, XIE ZHUOWU, WU WEIDI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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