›› 2006, Vol. 27 ›› Issue (S1): 455-458.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Research on increasing of mining upper limit for gently inclined coal seam

ZHANG Ming1，ZHAN Yu-bao2   

  1. 1. China University of Mining and Technology, Xuzhou 221008, China; 2. Shandong University of Science and Technology, Qingdao 266510, China
  • Received:2006-08-20 Published:2006-12-15

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Abstract: A research on increasing mining upper limit is important for coal mining, which can fully utilize coal resources and release most of the mines from the tension of limited successive exploitation. Based on the hydrologic and geologic data and data of nearby mines, taking the N2601 working face of Tianzhuang Mine for example, water resources of the producing area and water-existing character of the floor are analyzed; based on the plastic strain of the cover rock, the height range of caving zone and water flow fractured zone are analyzed through numerical simulation; finally, the upper mining limit is obtained by synthesizing the numerical simulation and exploitation regulations.

Key words: Upper mining limit, Gently inclined coal seam, Numerical simulation, Caving zone, Fractured zone

CLC Number: 

  • TD 263.3
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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