采矿与安全工程学报 ›› 2014, Vol. 31 ›› Issue (5): 824-830.
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国家自然科学基金项目(51274089，51104056，51174080)；河南省高校科技创新人才支持计划项目(2011HASTIT014)
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摘要： 煤层瓦斯参数的变化规律对矿井瓦斯灾害防治具有重要的指导意义。利用理论推导和数值模拟的方法对瓦斯涌出初速度、工作面前方的支承应力、瓦斯涌出量、煤层透气性系数等参数进行了分析研究，发现这些指标具有相似的或相反的变化规律，它们是关于距离x或者时间t的S型曲线和倒S型曲线的组合。透气性系数关于距离的曲线形式和瓦斯压力、支承应力关于距离的曲线形式具有不很严格的对称性。结合具体矿井的条件即可确定出参数的变化规律，从而为矿井瓦斯灾害防治提供有效的理论指导。
关键词: 瓦斯参数, 变化规律, S型, 倒S型
Abstract: Gas parameters variation has significant influence on the gas disaster prevention in coal mines. In this paper, the initial velocity of gas emission, abutment pressure ahead of the face, gas emission and permeability coefficient in coal seam, et al, were analyzed by the theoretical analysis and numerical simulation. The results show that there are similar or opposite variation regularity among these parameters, which are the combinations of S-shaped curve and inverted S-shaped curve associated to the distance x or time t. Meanwhile, permeability coefficient curve with distance, as well as gas pressure and abutment pressure with distance, all present not exactly symmetrical characteristics. Thus, the variation regularity of parameters can be ascertained with specific coal mine conditions. The research results can provide theoretical guidance to the prevention and control of gas disaster in coal mines.
Key words: gas parameter, variation regularity, S-type, inverted S-type
吴立云, 王飞, 杨玉中. 瓦斯参数变化规律的定量化研究[J]. 采矿与安全工程学报, 2014, 31(5): 824-830.
WU Liyun, WANG Fei, YANG Yuzhong. Quantitative research on gas parameter variation[J]. Journal of Mining & Safety Engineering, 2014, 31(5): 824-830.
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http://ckxb.cumt.edu.cn/CN/Y2014/V31/I5/824
