Field and Numerical Investigation of Water-Conducting Fractured Zone Development in a Deep Coal Seams with Variable Thickness at the 14,321 Working Face
This study characterizes the development of the water-conducting fractured zone at the 14321 working face of the Gubei Coal Mine, located in Fengtai County, Huainan City, Anhui Province, China, where segmentally differentiated mining was adopted in response to variations in coal seam thickness. The 4.2 m section was ex...