High-recovery-rate recovery method for protecting coal pillar in mine industrial site

The invention relates to a high-recovery-rate recovery method for protecting coal pillars in a mine industrial site. An isolation belt is formed by constructing isolation grouting drill holes, an inner unconsolidated formation of a protected area is isolated from an outer unconsolidated formation, w...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	CHEN SHAOJIE, ZHU WEIHAO, LU LANG, LIU MINGMING, HAN SEUNG-HO, FENG FAN, XIE ZEQI, WANG FENG, CHEN ZETAO, YOON DAE-WI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING MINING MINING OR QUARRYING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!