Dynamic discrimination method of gas security situation of stope face
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摘要: 从瓦斯抽采和井下通风这2种主要的瓦斯排放形式入手，结合邻近层瓦斯涌出、巷道煤壁瓦斯涌出和落煤等导致的涌出这3种主要的回采工作面瓦斯来源，提出了6种多元化的工作面瓦斯安全形势判别指标及基于BP神经网络的回采工作面瓦斯安全形势动态判别方法。Matlab验证结果表明，该方法判别工作面瓦斯安全形势的相对变化时会按照各指标寻求最优化排序，在给定判定指标的基础上，对瓦斯安全形势的相对变化判定准确，但绝对判定结果需要结合各分指标值来具体判断。Abstract: Dynamic discrimination method of gas security situation of stope face and six kinds of diversified evaluation indexes were proposed started from two major gas discharge forms of gas drainage and underground ventilation, and combining three major methane sources of adjacent layers gas emission, coal tunnel wall gas emission, and gas emission caused by coal drop. Dynamic discrimination method of gas security situation of stope face based on BP neural network was put forward too. Matlab validation results show that the method will follow the index to find the most optimized sequence when it discriminates relative changes of gas security situation of stope face, on the basis of given indicators, the method can accurately discriminates relative changes of gas security situation, but absolute discrimination results need to be judged specifically combined with sub-index values.
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Keywords:
- stope face /
- gas security situation /
- dynamic discrimination /
- evaluation index
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期刊类型引用(5)
1. 赵博生，范德源. 综放工作面下顺槽顶板超前支护技术优化设计研究. 煤炭技术. 2021(01): 39-42 . 
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2. 孙烽尧，李建威，刘现文，徐国泰. 极近夹矸煤层条件下放顶煤液压支架关键部件的设计研究. 煤矿机械. 2020(05): 15-18 . 百度学术
3. 张作状，李志旭. 两柱掩护式放顶煤液压支架力学性能分析. 工矿自动化. 2019(03): 29-34 . 本站查看
4. 袁健博. 放顶煤过渡支架关键部件设计研究. 煤矿机械. 2019(12): 26-29 . 百度学术
5. 李战营，范书恒. 垛式支架全封闭可互换挡矸装置的结构设计. 机械研究与应用. 2018(04): 109-110+113 . 百度学术
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