Anchor rod construction method for tunnel excavation primary support system

The invention discloses an anchor rod construction method for a tunnel excavation primary support system. The method comprises the following steps: 1, primarily spraying concrete; 2, mounting a steel arch; 3, hollow steel pipe installation; and fourthly, system anchor rods are installed. The method...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SHEN HAIRUI, WU YANSHENG, WU SHUAITIAN, DU WENQIANG, MA ZHANGGEN, YANG SHOUPEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING SHAFTS TUNNELS
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