Method and system for crushing and modifying surrounding rock of coal mine scour-preventing roadway

The invention provides a method and a system for breaking and modifying surrounding rock of an anti-scour roadway of a coal mine. According to the method, roadway surrounding rock is sequentially divided into a grouting reinforcement area and a fragmentation weakening area from inside to outside in...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	YI HAIYANG, LI GEN, CUI FENG, ZHANG LONG, OUYANG ZHENHUA, SHI QINGWEN, ZHANG NINGBO, SHAN PENGFEI, LIU YANG, REN FENGFEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING MINING OR QUARRYING SHAFTS TUNNELS
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