煤层巷道预排瓦斯带的流固耦合效应数值模拟
针对在研究本煤层瓦斯涌出规律时,没有准确方法确定煤层巷道预排瓦斯带宽度的问题,基于瓦斯渗流和煤岩变形理论,建立含瓦斯煤岩体瓦斯渗流方程和煤岩巷道变形场方程,确立了煤层巷道预排瓦斯带流固耦合数学模型,以沁水煤田综掘煤层巷道作为实例进行数值模拟计算,研究得出含瓦斯煤岩巷道损伤的时空演化规律.提出基于示踪原理的实测煤层巷道预排瓦斯带宽度的方法,实测考察与数值计算结果具有一致性.研究提出的方法能够解决煤矿工作面瓦斯涌出量预测精度问题....
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| Published in | 东北大学学报（自然科学版） Vol. 38; no. 11; pp. 1628 - 1632 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
煤科集团 沈阳研究院有限公司, 辽宁 沈阳 110016
2017
东北大学 资源与土木工程学院,辽宁 沈阳,110819%西南石油大学 地球科学与技术学院,四川 成都 610500 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1005-3026 |
| DOI | 10.12068/j.issn.1005-3026.2017.11.022 |
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| Summary: | 针对在研究本煤层瓦斯涌出规律时,没有准确方法确定煤层巷道预排瓦斯带宽度的问题,基于瓦斯渗流和煤岩变形理论,建立含瓦斯煤岩体瓦斯渗流方程和煤岩巷道变形场方程,确立了煤层巷道预排瓦斯带流固耦合数学模型,以沁水煤田综掘煤层巷道作为实例进行数值模拟计算,研究得出含瓦斯煤岩巷道损伤的时空演化规律.提出基于示踪原理的实测煤层巷道预排瓦斯带宽度的方法,实测考察与数值计算结果具有一致性.研究提出的方法能够解决煤矿工作面瓦斯涌出量预测精度问题. |
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| Bibliography: | 21-1344/T ZHANG Wei1,XU Kai- li1 ,LEI Yun2,3（1. School of Resources ＆ Civil Engineering, Northeastern University, Shenyang 110819, China; 2. School of Geoscience and Technology,Southwest Petroleum University,Chengdu 610500,China; 3. Shenyang Research Institute,China Coal Technology ＆ Engineering Group Co., Shenyang 110016,China） seam roadway; gas prediction; pre-exhaust gas; flow solid coupling; tracer gas The gas emission law during excavation in coal mining is the fundamentals of prevention and control of gas disasters. For the gas emission law in the study, there is no accurate method to determine the problem of pre-exhaust gas zone width of seam roadway. Based on the theory of gas flow and coal and rock deformation,the gas flow equation of gas-containing coal and rock and the coal and rock roadway deformation equation were established ’ the flow solid coupling mathematical model of the seam roadway pre-exhaust gas zone was established as well. The Qinshui mining area excavated roadway was taken as an example |
| ISSN: | 1005-3026 |
| DOI: | 10.12068/j.issn.1005-3026.2017.11.022 |