Analyses of Actual Measurement and Numerical Simulation on Gently Inclined Thin Seam

Abstract:

Based on the numerical simulation method and actual measurement analyses, characteristics of working face mineral pressure of the River Mouth Mine has been analyzed and this paper has obtained the following results: First weighting step of the main roof is 23.2 m, the average dynamic pressure coefficient is 1.54~1.74, mine strata behaviors is fiercer; hydraulic prop’s average working resistance is 45.72 KN of each, which indicates hydraulic prop’s working resistance has larger surplus coefficient, some measures should be taken to increase utilization ratio; advanced support length of return airway and mechanical roadway should reach to 30 m, the method and results can be used to improve support pattern of working face and guide safety production.

• Periodical: Advanced Materials Research (Volumes 361-363)
• Pages: 130-134
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.361-363.130
• Online since: October 2011
• Authors: Jian Xin Tang, Le Le Sun, Yue Hua Deng, Hua Hui Jin
• Keywords: Gently Inclined Thin Seam, Mine Pressure, Numerical Simulation, Roof Weighting Step

References

[1] Minggao Qian, Pingwu Shi. Mining pressure and strata control [M].Xuzhou: China mining university press,2003.

[2] Yongjie Yang, Yunliang Tan. Gray prediction of working face periodic weighting [J]. Journal of Engineering Geology, 1996, 4(3):59-64.

[3] Meifeng Cai. Rock Mechanics and Engineering [M]. Beijing: Science Press, 2002.

[4] Yan Lu, Shengqiang Fan, Xizheng Zhou. Distribution law of working face advanced support pressure[J]. Journal of Liaoning Technical University, 2008, 27(2):184-187.

[5] Yonglu Suo, Jianping Liu, Lifeng Wang. Characteristic of working face pressure behavior of soft coal mine stabile roof [J]. Journal of Liaoning Technical University, 2008, 27(2):642-644.