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CAO Lianmin, DAI Qingyun, ZHANG Dan, YU Yongna, WANG Zhongtao, SUN Yunlu. Study on Lateral Stability of Hydraulic Support at Large Inclined Angle Working Face[J]. Safety in Coal Mines, 2017, 48(2): 65-68.
Citation: CAO Lianmin, DAI Qingyun, ZHANG Dan, YU Yongna, WANG Zhongtao, SUN Yunlu. Study on Lateral Stability of Hydraulic Support at Large Inclined Angle Working Face[J]. Safety in Coal Mines, 2017, 48(2): 65-68.
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Study on Lateral Stability of Hydraulic Support at Large Inclined Angle Working Face

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  • Published Date: February 19, 2017
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    • Abstract
  • For the stability problem of hydraulic support at working face with large inclined angle, from the roof stability in the process of moving support, we establish stress mechanism model of support at the time of moving frame with pressure. Through the force balance theory, we analyze the residual support force of column support in the process of support advacing with roof friction, and carry out specific calculation through the ZF5600/16.5/26 hydraulic support parameters at 2331 face of Getting Coal Mine. We analyze the influence of lateral shift of beam on residual support force of column support from hole and axis maching of four bar linkage. For this kind of influence, we propose the measures by chaning supports its structural elements to improve lateral stability in the process of support advancing with roof friction to ensure that the large dip angle hydraulic support can adapt to the safety coal mining of working face.
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    • References (9)
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