Segmented and layered circular grouting construction method for reuse roadway of soft coal seam

The invention discloses a segmented and layered circular grouting construction method for a reuse roadway of a soft coal seam, belongs to the field of mining engineering, and can solve the problems that when roadway surrounding rock loosening and breaking integrity is poor due to repeated dynamic pr...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHAO YULIANG, WANG PENGWEI, JIA HANG, YUAN XIAOLU, ZHANG JIANGLI, GUO AIPING, MA JINQIN, CONG RIDONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SHAFTS TUNNELS
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