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Modern Mining ›› 2020, Vol. 36 ›› Issue (09): 177-180.

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Applicability Verification of Hydraulic Support for Inclined Thick Coal Seam in Dongxia Coal Mine

LIU Zhiwen NIU Jiasheng GAO Jun DA Guozhi   

  1. Dongxia Coal Mine,Gansu Huating Coal Electricity Group Co.,Ltd.
  • Online:2020-09-25 Published:2021-09-24

Abstract: In view of the phenomenon of equipment sliding during the mining of inclined thick coal seam in Dongxia coal mine,taking 352192 fullymechanized face as an example,based on the filed observation data,the stress of the hydraulic support is analyzed,which provides a theoretical basis for the selection of the appropriate hydraulic support in 352192 working face.Results show that: The average cycle end resistance of the supports on the lower crossheading side is less than that on the upper crossheading side,the supports management on the lower crossheading side should be strengthened.Most of the working resistance of the supports are nonnormal distribution and work well,the ZF6300/19/30 hydraulic support selected on site can meet the support requirements.

Key words: inclined thick coal seam,hydraulic,working resistance