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Study on Technology Application of Gob-side Entry Retaining in Zhongxing Mine 1200 Working FaceChinese Full Text

SUN Xiao-ming;HAN Qiang;WANG Jiong;LI Sheng-ya;XU Yan-jun;YUAN Shuai;DU Min;State Key Laboratory for Geomechanics and Deep Underground Engineering,China University of Mining and Technology (Beijing);School of Mechanics and Civil Architecture Engineering,China University of Mining and Technology (Beijing);Shanxi Zhongxing Coal Limited Company;

Abstract: Two methods of gob-side entry retaining: high water material filling technology by lane and roof cut and pressure releasing technology are carried out in different sections in 1200 face of Zhongxing mine. Two methods both can form stable roadway and satisfy for the secondary use requirement. Machines and tools of high water material filling technology are heavy, the processes are relatively complicated and delay the advance of the face, the cost is rather high. The process of roof cut and pressure releasing technology are simple, carried out ahead of working face or paralleled to the coal extraction, do not delay the normal production, effectively improves the production efficiency and reduces the cost.
  • DOI:

    10.13301/j.cnki.ct.2017.02.011

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  • Classification Code:

    TD353

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