煤与瓦斯突出多因素影响规律与能量判据实验研究

doi:10.12068/j.issn.1005-3026.2022.04.017

东北大学学报（自然科学版） ›› 2022, Vol. 43 ›› Issue (4): 582-590.DOI: 10.12068/j.issn.1005-3026.2022.04.017

煤与瓦斯突出多因素影响规律与能量判据实验研究

王伟^1,2，王汉鹏^1,2，张冰^1,2，徐飞³

(1. 山东大学岩土与结构工程研究中心，山东济南250061; 2. 山东大学齐鲁交通学院，山东济南250061; 3. 石家庄铁道大学大型结构健康诊断与控制研究所，河北石家庄050043)

修回日期:2021-05-10 接受日期:2021-05-10 发布日期:2022-05-18
通讯作者: 王伟
作者简介:王伟(1994-)，男，山东济宁人，山东大学博士研究生；王汉鹏(1978-)，男，山东济南人，山东大学教授，博士生导师.
基金资助:
山东省重点研发计划项目(2019GSF111036)；中国科协青年人才托举工程项目(2018QNRC001).

Experimental Study on Multi-Factor Influence Law and Energy Criterion of Coal and Gas Outburst

WANG Wei^1,2， WANG Han-peng^1,2， ZHANG Bing^1,2， XU Fei³

1. Research Centre of Geotechnical and Structural Engineering， Shandong University， Jinan 250061， China; 2. School of Qilu Transportation， Shandong University， Jinan 250061， China; 3. Structural Health Monitoring and Control Institute， Shijiazhuang Tiedao University， Shijiazhuang 050043， China.

Revised:2021-05-10 Accepted:2021-05-10 Published:2022-05-18
Contact: WANG Han-peng
About author:-
Supported by:
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摘要/Abstract

摘要： 为分析煤与瓦斯突出多因素耦合影响规律，开展了多组不同条件下含瓦斯煤快速揭露致突模拟试验.将模拟试验结果与突出能量模型相结合，计算突出潜能与突出耗能的定量关系，分析得出突出临界瓦斯压力与煤体强度呈正相关，与轴向应力呈负相关，验证了能量判据对突出激发的必要性.选取煤体弹性能、瓦斯膨胀能、煤体强度及密度等参数建立了两个综合考虑多影响因素的无量纲参数，进而拟合得出发生剧烈突出的能量判据公式.结果表明:瓦斯压力及轴向应力越大，煤体强度越小，突出危险性越高;各因素对煤与瓦斯突出危险性的影响重要程度排序为:瓦斯压力＞煤体强度＞轴向应力.

关键词: 揭煤致突;模拟试验;多因素影响;能量分析;突出判据

Abstract: In order to analyze the coupling influence law of multi-factors of coal and gas outburst， the outburst simulation test for rapid exposure of gas-containing coal under multiple conditions was carried out. Combining the simulation test results with the outburst energy model to calculate the quantitative relationship between outburst potential and outburst energy consumption， the results shows that the outburst critical gas pressure is positively correlated with coal strength and negatively correlated with the axial stress， which verifies the necessity of the energy criterion for outburst excitation. Based on coal elastic energy， gas expansion energy， coal strength and density and other parameters to establish two dimensionless parameters， and then fit the energy criterion formula for severe outburst. The results show that: the greater the gas pressure and axial stress， the smaller the coal strength and the higher the outburst risk. The order of importance of the influence of various factors on the risk of coal and gas outburst is: gas pressure> coal strength> axial stress.

Key words: outburst caused by rapid exposure; simulation experiment; multi factor influence; energy analysis; outburst criterion

中图分类号:

TD712

王伟，王汉鹏，张冰，徐飞. 煤与瓦斯突出多因素影响规律与能量判据实验研究[J]. 东北大学学报（自然科学版）, 2022, 43(4): 582-590.

WANG Wei， WANG Han-peng， ZHANG Bing， XU Fei. Experimental Study on Multi-Factor Influence Law and Energy Criterion of Coal and Gas Outburst[J]. Journal of Northeastern University(Natural Science), 2022, 43(4): 582-590.

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煤与瓦斯突出多因素影响规律与能量判据实验研究

Experimental Study on Multi-Factor Influence Law and Energy Criterion of Coal and Gas Outburst

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