胜利煤矿瓦斯抽采技术研究

发布时间：2018-01-04 05:14

本文关键词：胜利煤矿瓦斯抽采技术研究　出处：《四川师范大学》2016年硕士论文　论文类型：学位论文

【摘要】：矿井瓦斯事故是最严重的矿井灾害事故之一,同时也是长期制约着我国乃至全世界煤矿安全生产工作的“瓶颈”。为了解决这一问题,煤矿工程技术人员和管理人员进行了长期艰苦的研究和探索,并取得了重大技术突破,其中对矿井进行瓦斯抽采作为较普遍且效率较高的一种方式被广泛采用。通过大量查阅国内外相关文献资料和国家有关规程规范,在借鉴、归纳和总结前人对矿井瓦斯抽采技术研究的基础之上,以胜利煤矿作为试验矿井,运用文献研究法、现场调研法、统计分析法和综合分析法等手段,对胜利煤矿1306采煤工作面进行了系统的瓦斯抽采技术研究。首先对胜利煤矿的瓦斯运移规律和采煤工作面瓦斯来源进行了充分探讨;其次,通过考察抽采钻孔的抽采瓦斯量和抽采瓦斯浓度,对原有瓦斯抽采钻孔的抽采效果进行初步评估,提出瓦斯抽采钻孔优化方案;最后运用回归分析的手段对优化后采集的瓦斯数据进行统计和分析,并评价系统优化后瓦斯抽采效果。现场工程实践表明,通过在开采煤层中布置顶板和底板高(低)位钻孔后,同时抽采本煤层和上、下邻近层卸压瓦斯后,1306采煤工作面瓦斯抽采率达到了37.6%~80.7%,满足了《煤矿瓦斯抽采达标暂行规定》的要求,实现了瓦斯抽采达标。运用回归分析的方法对1306采煤工作面抽采瓦斯数据进行了分析,回归曲线的相关系数R0.8,且均接近于1,证明应用曲线回归分析瓦斯抽采效果的方法较为可靠。根据所得函数关系,可以预测1306采煤工作面的瓦斯抽采状况。
[Abstract]:Mine gas accident is one of the most serious mine disasters, but also restricts the long-term in China and the world coal mine production safety work "bottleneck". In order to solve this problem, the research and exploration of long and hard coal mine engineering and technical personnel and management personnel, and has achieved a major breakthrough, which was on the gas mine drainage is widely used as a way of widespread and high efficiency. Through consulting a large number of related documents at home and abroad and the relevant state regulations, in reference on the basis of summing up and summarizing of the mine gas drainage technology in Shengli coal mine as research, mine test, using the literature research, field research method the method of statistical analysis, and comprehensive analysis, the work of the victory 1306 coal surface made a systematic study on gas drainage technology of coal mine. The first victory of the tile This gas migration and the coal face sources were fully discussed; secondly, the borehole gas drainage volume and drainage gas concentration through the investigation of the original gas drainage pump, drainage boreholes of the initial evaluation, proposed gas drainage drilling optimization scheme; finally, statistics and analysis of the gas data after optimization the acquisition by using regression analysis method, and evaluation system optimization after gas drainage. Practice shows that through the arrangement of the mining coal seam roof and floor high (low) position after drilling, and drainage of the coal seam and the adjacent layer, pressure relief gas, gas recovery rate of 37.6%~80.7% 1306 working face, to meet the "Interim Provisions on the requirements of the standard of mining coal mine gas pumping, the gas drainage standards. By using the method of regression analysis on 1306 coal face gas drainage data were analyzed, the regression curve The correlation coefficient R0.8 is close to 1, which proves that the method of regression analysis for gas drainage effect is reliable. According to the function relation, we can predict the gas drainage status of 1306 coal face.

【学位授予单位】：四川师范大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TD712.6

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