METHOD FOR MONITORING DESTROYING DEPTH OF COAL SEAM FLOOR DURING MINING

A method for monitoring a destroying depth of a coal seam floor during mining. The method comprises: determining a water conducting destroying zone according to fracture development situations and water conductivities before and after stoping of a coal seam floor, determining a stress-strain zone ac...

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Bibliographische Detailangaben

Hauptverfasser:	ZHANG, Fengda, CAO, Lutong, LI, Youwei, SUN, Lin, CHENG, Yanfang, SHEN, Chenhui, ZHANG, Zhiwei, XIAO, Jie, GAO, Chao, ZHANG, Yujun, ZHAO, Qiuyang
Format:	Patent
Sprache:	chi ; eng ; fre
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING
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