| 综采与综放工艺条件下采场矿压特征分析 |
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| 引用本文： | 杜泽生,陈金宇.综采与综放工艺条件下采场矿压特征分析[J].煤炭科学技术,2011,39(9):17-21. |
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| 作者姓名： | 杜泽生 陈金宇 |
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| 作者单位： | 煤炭科学研究总院安全装备技术研究分院,北京,100013 |
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| 摘 要： | 基于相同顶板条件下,综采工艺与综放工艺的平均矿压显现特征差异,为给支架选型与顶板管理提供基础依据,以某矿217工作面为例,采用支架压力记录仪实时记录支架工作阻力,结合工作面矿压显现进行顶板来压特征分析。通过分析放煤阶段和不放煤阶段的支架阻力变化,研究综采与综放工艺的顶板来压特征之差异。研究结果表明：与综采工艺相比,综放工艺支架阻力显著增加,动载系数1.30～1.41,顶板来压强烈,基本顶周期来压步距从平均22 m减小到平均11 m,明显减小。在倾斜方向上,中部基本顶来压最强烈,其次是下部、上部,工作面周期来压较强烈。
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| 关 键 词： | 综放开采 矿压显现 顶板来压 动载系数 |
Analysis on Strata Pressure Features of Mining Face Under Conditions of Fully Mechanized Coal Mining and Fully Mechanized Top Coal Caving Mining |
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| DU Ze-sheng,CHEN Jin-yu.Analysis on Strata Pressure Features of Mining Face Under Conditions of Fully Mechanized Coal Mining and Fully Mechanized Top Coal Caving Mining[J].Coal Science and Technology,2011,39(9):17-21. |
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| Authors: | DU Ze-sheng CHEN Jin-yu |
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| Affiliation: | DU Ze-sheng1,CHEN Jin-yu2(1.Safety Equipment and Technology Branch,China Coal Research Institute,Beijing 100013,China,2.Safety Equipment and Technology Branch,China) |
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| Abstract: | Based on the same roof conditions,the differences of the average mine pressure behavior between the fully mechanized coal mining and the fully mechanized top coal caving mining were the key issue to be noted in the coal mining industry,in order to provide the basic references to the powered support selection and the face roof management.Taking 217 coal mining face as an example,the pressure recorder of the powered support was applied to on-timely record the working resistance of the powered support.In combi... |
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| Keywords: | fully mechanized top coal caving mining mine strata pressure behavior roof pressurized dynamic load coefficient |
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