| 支护阻力作用下综放开采顶板结构稳定性分析及应用 |
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| 引用本文： | 于雷,闫少宏,尹希文,祝凌甫.支护阻力作用下综放开采顶板结构稳定性分析及应用[J].煤矿开采,2012(1):12-14. |
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| 作者姓名： | 于雷 闫少宏 尹希文 祝凌甫 |
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| 作者单位： | 煤炭科学研究总院开采设计研究分院;天地科技股份有限公司开采设计事业部;天地科技股份有限公司 |
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| 基金项目： | 国家科技支撑计划资助项目(2008BAB36B01,2008BAB36B12) |
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| 摘 要： | 基于综放开采顶板"悬臂梁-铰接岩梁"结构模型,考虑采场支架的作用力,对基本顶"铰接岩梁"的关键块进行受力分析。通过分析,完善了关键块S-R稳定条件。基于关键块失稳的必然性,以控制两种失稳中对工作面威胁最大的滑落失稳为原则,提出了综放开采支架工作阻力的确定方法。最后依此方法对塔山8105工作面支架进行了选型。现场工业性试验表明:所选架型运行合理,利用率高,对工作面顶板条件适应性较好。
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| 关 键 词： | 支护阻力 综放开采 “悬臂梁-铰接岩梁”结构 稳定性 |
Stability Analysis and Application of Roof Structure in Full-mechanized Caving Mining Face |
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| YU Lei,YAN Shao-hong,YIN Xi-wen,ZHU Ling-fu.Stability Analysis and Application of Roof Structure in Full-mechanized Caving Mining Face[J].Coal Mining Technology,2012(1):12-14. |
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| Authors: | YU Lei YAN Shao-hong YIN Xi-wen ZHU Ling-fu |
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| Affiliation: | 1,3(1.Coal Mining & Designing Branch,China Coal Research Institute,Beijing 100013,China; 2.Tiandi Science & Technology Co.,Ltd,Beijing 100013,China; 3.Coal Mining & Designing Department,Tiandi Science & Technology Co.,Ltd,Beijing 100013,China) |
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| Abstract: | Taking acting force of powered support into account,key block of "cantilever-articulated beam"in roof was analyzed on the basis of "cantilever-articulated beam" structure model.S-R stability conditions of key block were perfected.In order to control sliding instability whose influence on mining face safety was more seriously than rotation instability,working resistance design method was put forward for top-coal caving powered support.Applying this method,a powered support was selected for 8105 mining face of Tashan Colliery.Actual application showed that this powered support adapted its roof condition in a better way. |
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| Keywords: | supporting resistance full-mechanized caving mining "cantilever-articulated beam" structure stability |
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