Stress Shell Mechanical Mechanism of Fully-Mechanized Face Enhancing the Upper Limit for Coal Mining and Risk Analysis of Support Break-Off

Jun Ling Hou; Yan Sun

doi:10.4028/www.scientific.net/AMR.524-527.466

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 524-527Stress Shell Mechanical Mechanism of...

Stress Shell Mechanical Mechanism of Fully-Mechanized Face Enhancing the Upper Limit for Coal Mining and Risk Analysis of Support Break-Off

Abstract:

Based on the geological conditions and specific mining technology conditions of the 11014 mining face of Panbei mine in HuaiNan mining group ,using the FLAC3D software, simulate the stress distribution rule and disruption field distribution rule of surrounding rock of Fully-Mechanized face enhancing the upper limit for coal mining along the tendency and trend of coal seam by different mining speed of 6 m/d, 4 m/d and 2 m/d. draw the conclusion that enhancing the mining speed can alleviate the pressure of the working face ,improve the working face mechanical environment,and reduce the extent of the failure field.It provides the theory basis and reference for Fully-Mechanized face enhancing the upper limit for coal mining under similar conditions.

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Periodical:

Advanced Materials Research (Volumes 524-527)

Pages:

466-470

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.524-527.466

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Online since:

May 2012

Authors:

Jun Ling Hou, Yan Sun

Keywords:

Failure Field, Fully-Mechanized Face, Stress Distribution, Stress Shell, Upper Limit for Coal Mining

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