Testing on Surrounding Rocks Loose Circle and Physical and Mechanical Properties of Rock of Roadway of No.10 Hebi Coal Mining Roadway

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Testing on Surrounding Rocks Loose Circle and Physical and Mechanical Properties of Rock of Roadway of No.10 Hebi Coal Mining Roadway

YU Yong-Qiang, WANG Wei-Fu, PI Qian-Yong, ZHANG Jun

Modern Mining . 2014, (09): 13 -14+20 .