Roof control method for hard composite roof

The invention relates to the technical field of coal mine support, in particular to a hard composite roof control method which comprises the following steps: S1, after roof cutting is completed, applying a high-pre-stressed anchor cable in an adhesive tape gate roadway, actively supporting a roof in...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CHEN XUGANG, ZHANG YONG, ZHAO JUN, WANG HUAWEI, LIU PEIYUE, JIA DONGXIU, YANG XIAOGANG, LI TINGCHUN, LIU GUOWEI, LIU YUYUE, GUO CHUNLING, WANG DONGJING, WANG ZHUANG, BAI DONGDONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING MINING OR QUARRYING SHAFTS TUNNELS
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