煤层巷道预排瓦斯带的流固耦合效应数值模拟

doi:10.12068/j.issn.1005-3026.2017.11.022

东北大学学报:自然科学版 ›› 2017, Vol. 38 ›› Issue (11): 1628-1633.DOI: 10.12068/j.issn.1005-3026.2017.11.022

煤层巷道预排瓦斯带的流固耦合效应数值模拟

张伟¹，许开立¹，雷云^2,3

(1. 东北大学资源与土木工程学院，辽宁沈阳110819; 2. 西南石油大学地球科学与技术学院，四川成都610500; 3. 煤科集团沈阳研究院有限公司，辽宁沈阳110016)

收稿日期:2016-05-18 修回日期:2016-05-18 出版日期:2017-11-15 发布日期:2017-11-13
通讯作者: 张伟
作者简介:张伟(1985-)，女，河北沧州人，东北大学博士研究生；许开立(1965-)，男，山东郓城人，东北大学教授，博士生导师.
基金资助:
国家科技重大专项资助项目(2016ZX05067)；辽宁省自然科学基金资助项目(2013020137).

Numerical Simulation of the Flow Solid Coupling Effect in the Seam Roadway Pre-exhaust Gas Zone

ZHANG Wei¹， XU Kai-li¹， LEI Yun^2,3

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.

Received:2016-05-18 Revised:2016-05-18 Online:2017-11-15 Published:2017-11-13
Contact: ZHANG Wei
About author:-
Supported by:
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摘要/Abstract

摘要： 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.

关键词: 煤层巷道, 瓦斯预测, 预排瓦斯, 流固耦合, 示踪气体

Abstract: 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 of numerical simulation to obtain the characteristics of temporal and spatial evolution of gas-containing coal and rock roadway damage. Based on the tracing principle， the method of measuring the pre-exhaust gas zone width of the seam roadway was proposed， and the measured results were consistent with that of the numerical calculation. The research results help to solve the problem of prediction accuracy of gas emission in coal working face.

Key words: seam roadway, gas prediction, pre-exhaust gas, flow solid coupling, tracer gas

中图分类号:

TD712⁺.5

张伟，许开立，雷云. 煤层巷道预排瓦斯带的流固耦合效应数值模拟[J]. 东北大学学报:自然科学版, 2017, 38(11): 1628-1633.

ZHANG Wei， XU Kai-li， LEI Yun. Numerical Simulation of the Flow Solid Coupling Effect in the Seam Roadway Pre-exhaust Gas Zone[J]. Journal of Northeastern University Natural Science, 2017, 38(11): 1628-1633.

参考文献

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煤层巷道预排瓦斯带的流固耦合效应数值模拟

Numerical Simulation of the Flow Solid Coupling Effect in the Seam Roadway Pre-exhaust Gas Zone

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