Lication of Complex Summation in Eliminating the Impact of Minor Faults during the Research on Upper Mining Limit of Coal Seams

Abstract:

In this paper, complex summation is applied to the researches on upper mining limit of coal seams. In detail, nature, trend and equivalent fall of a fault are respectively cited as quadrant, angle and size of plain vector coordinates. An equivalent fault is thus acquired through complex ummation and then put on the most unfavorable position to analyze the impact of this fault on results of research on upper mining limit. As a esult, the application has successfully eliminated superimposed impact of minor faults on upper mining limit evaluation

• Periodical: Advanced Materials Research (Volumes 734-737)
• Pages: 570-573
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.734-737.570
• Online since: August 2013
• Authors: Guang Liang Niu
• Keywords: Equivalent Analysis, Fully Mechanized Caving Mining, Underwater Coal Mining, Upper Mining Limit

References

[1] Analysis of Groundwater Burst and Cause of Coal Mines in Pingdingshan by YU Huiguang, GUO Deyong and WU Jianting on page 1 to 3, Issue 1, Volume 32, February 2005, Mining Safety & Environmental Protection.

[2] Analysis of Feasibility of Recovery on Shallow Mining Face of 13# Mine of Pingdingshan Coal Mine [R]. by Xi'an Research Institute of China Coal Research Institute in 2008.

[3] Method of Setting Thickness of Effective Confining Bed for Waterproof Coal Pillar Protecting Layer during Fully Mechanized Caving Mining by XU Yanchun on the 30th Issue (3) of Journal of China Coal Society