亭南煤矿204工作面瓦斯治理研究

发布时间：2018-05-29 21:40

本文选题：厚煤层 + 运移规律　；参考：《辽宁工程技术大学》2013年硕士论文

【摘要】：瓦斯是影响矿井安全生产重大灾害之一。亭南煤矿是高瓦斯矿井,论文针对该矿高瓦斯煤层进行瓦斯治理,通过理论分析、数值模拟以及现场试验,提出关于亭南煤矿204工作面瓦斯治理方案,实现矿井安全生产。亭南煤矿主采煤层4#煤是高瓦斯厚煤层,204工作面是亭南矿首个大采高工作面,采高6m为高瓦斯易自燃超长综采工作面。在首次回采开始的120天里,风巷出现高瓦斯浓度天数占总回采天数的46%,更为严重的是在开采初期瓦斯涌出量过大,有时瓦斯浓度日平均值在1%以上多次出现上隅角瓦斯超限现象,给工作面的安全生产构成了严重威胁。论文在国内外对瓦斯运移规律以及瓦斯抽采工程研究的基础上,依据煤矿开采学、煤矿瓦斯防治理论、矿山压力与岩层控制学,通过数值模拟仿真分析瓦斯在煤层开采时的运移规律以及现场4#煤基础参数测定试验、瓦斯涌出量预测及瓦斯抽采半径试验确定了适用于亭南煤矿204工作面瓦斯治理方案,使得204工作面在开采过程中没有发生瓦斯事故,保证了矿井的安全生产。
[Abstract]:Gas is one of the major disasters affecting mine safety production. Tingnan coal mine is a high gas mine. Through theoretical analysis, numerical simulation and field test, this paper puts forward a gas control scheme for 204 working face of Tingnan Coal Mine to realize safe production of coal mine through theoretical analysis, numerical simulation and field test. The coal seam in the main coal seam of Ting Nan Coal Mine is the first large mining face in the thick coal seam of high gas, and the mining height of 6 m is the super-long fully mechanized coal mining face with high gas spontaneous combustion. In the 120 days since the first mining, the days of high gas concentration in the wind roadway accounted for 46 of the total days of mining. What is more serious is the excessive amount of gas emission in the early stage of mining. Sometimes the gas concentration exceeds the limit in the upper corner several times when the daily average gas concentration is more than 1%, which poses a serious threat to the safety production of the working face. On the basis of the research on gas migration law and gas drainage engineering at home and abroad, the thesis is based on the theory of coal mine mining, coal mine gas prevention and control, mine pressure and strata control. Through the numerical simulation analysis of gas migration law in coal seam mining and the determination test of coal foundation parameters on the spot, the gas emission prediction and gas extraction radius test, the gas control scheme suitable for 204 working face of Tinan Coal Mine is determined. No gas accident occurred in the mining process of working face 204, which ensured the safety of mine production.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TD712

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