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Feasibility Study of Upward Mining of Close Distance and Inclined Coal Seam Group in Daanshan Mining Area

  • LIANG Bing;SHAN Longhui;LI Gang;JIN Jiaxu
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  • 1. Liaoning Technical University, Fuxin 123000, Liaoning Province, China;2. Northeastern University, Shenyang 110000, China

Received date: 2012-07-20

  Revised date: 2012-09-17

  Online published: 2012-11-18

Abstract

This paper deals with the practical problems of Daanshan mine coal seam group, including the upward mining tunnel surrounding rock control, the mining lag, the link difficulties and how to increase a single face recovery rate. The theoretical analysis and the numerical simulation are used to study the roof movement of the upward mining and the mining pressure variation in inclined seams. In order to determine the mining sequence of Dananshan mine, the Dananshan mine coal seam group is analyzed according to geological conditions. Numerical analysis shows that the spacing between seams is adequate for the upward mining, which can be applied to seams 3, 4, 5 and 6, and then to seam 2.

Cite this article

LIANG Bing;SHAN Longhui;LI Gang;JIN Jiaxu . Feasibility Study of Upward Mining of Close Distance and Inclined Coal Seam Group in Daanshan Mining Area[J]. Science & Technology Review, 2012 , 30(33) : 45 -49 . DOI: 10.3981/j.issn.1000-7857.2012.33.008

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