摘要
为提高开采期间支架的稳定性,减少支架倾斜倒架现象,结合现场过断层试验及对大倾角工作面正常开采时支架的稳定性进行综合分析.通过现场应用,表明选用型号为ZZ8400/21/48,临界倾倒支护阻力为6 980.81 kN、滑移支护阻力为5 979.21 kN的液压支架,在开采大倾角工作面过断层期间,支架的稳定性大大提升,解决了在施工过程中支架失稳的问题.
Abstract
In order to improve the stability of the stent during the mining period,reduce the stent tilt inverted frame phenomenon,now combined with the field over the fault test and the stability of the stent in the normal mining of large inclined angle working face to carry out a comprehensive analysis,through the application of the field,the results show that,the selection of model ZZ8400/21/48,the critical tipping support resistance of 6,980.81 kN,slip support resistance of 5,979.21 kN of the Hydraulic support,during mining large inclined angle working face over fault,the stability of the support is greatly improved,and the problem of support instability in the construction process is solved.
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万方数据