Prestress expansion shell type anchor rod

The utility model discloses a prestress expansion shell type anchor rod which comprises a main rod part and an expansion shell part. The expansion shell part comprises a shell and expansion shell teeth, the shell is provided with an insertion end and a first connecting end which are opposite to each...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	JI LEI, YANG LIRAN, REN SHAOQIANG, LI SHUGUANG, GOU BING, XU JIANPING, WANG PING'AN, WANG QINGSONG, LUO ZONGFAN, JI SHENGLI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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