Method for judging instability of coal body under wide-area strain rate

The invention provides a coal instability evaluation method under a wide-area strain rate. The method comprises the steps of collecting a coal sample, obtaining the uniaxial compressive strength and the impact tendency index of coal under the condition of a wide-area strain rate, collecting the unia...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	RAN QICAN, ZOU QUANLE, KONG FANJIE, LI XUELONG, TAN XUJING, ZHANG BICHUAN, HONG YANG, MA TENGFEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING FIXED CONSTRUCTIONS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MINING PHYSICS SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS TESTING
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