工程科学学报，第39卷，第7期：988995,2017年7月 Chinese Journal of Engineering,Vol.39,No.7:988-995,July 2017 DOI:10.13374/j.issn2095-9389.2017.07.003:http://journals.ustb.edu.cn 不同温度下无烟煤电阻率的层理效应 陈立12》，张英华)四，黄志安》，高玉坤”，白智明” 1)北京科技大学金属矿山高效开采与安全教有部重点实验室，北京100083 2)河北工程大学矿业与测绘工程学院，邯郸056038 ☒通信作者，E-mail:yhustb@163.com 摘要选取层理面与轴向夹角0为0°、30°、45°，60°和90°的无烟煤样，采用CHI660E型电化学工作站，在0~95℃温度下 测试煤样的一V曲线，提出串并联主导程度概念，采用最小势能原理和电荷极化原理，分析和研究不同温度下层理结构对电 阻率的影响机理及规律.结果表明：无烟煤电阻率随温度升高呈现较强的规律性，当0为0°时在55℃时出现拐点，其余均在 35℃时出现拐点：串并联主导程度解释了层理结构对电阻率的影响机理，由关键层理面的数量和开始通过时间来决定：无烟 煤电阻率受层理结构影响显著，随0增大呈现递增规律；无烟煤各向异性系数随温度升高而增大，在35~65℃范围内，增大近 2倍. 关键词煤电阻率：层理效应：温度：串并联主导程度：各向异性系数 分类号TD713:P631.3 Effects of bedding plane on anthracite coal resistivity under different temperatures CHEN Li,ZHANG Ying-hua,HUANG Zhi-an,GAO Yu-un,BAI Zhi-ming 1)Key Laboratory of the Ministry of Education of China for High-Efficient Mining and Safety of Metal Mines,University of Science and Technology Bei- jing,Beijing 100083,China 2)College of Mining and Surveying Engineering,Hebei University of Engineering,Handan 056038,China Corresponding author,E-mail:zyhustb@163.com ABSTRACT This study tested the current vs.voltage curves of coals with angles of0°，30°，45°，60°，andg0°between the bedding plane and the axial direction at temperatures from0 to 95C using a CHI660E electrochemical workstation.The concept of the series-parallel dominant degree was put forward.Moreover,the influence mechanism and the rule of the bedding structure of anthracite coal on coal resistivity under different temperatures were analyzed and investigated using the principle of minimum potential energy and polarization charge.The results show that the resistivity of the anthracite coal exhibits a strong regularity with temperature rise.A turn- ing point appears at 55C for of the 0 samples,whereas the other samples have a turning point at 35C.The series-parallel domi- nant degree reflects the impact mechanism of the bedding structure on coal resistivity and depends on the number of key bedding surface and the start time of the current going through.The resistivity increases with the increasing 0.In addition,the anisotropy coefficient of the anthracite coal increases with the temperature rise and elevates nearly twice in the scope of 35 to 65C. KEY WORDS coal resistivity:bedding effect:temperature:series-parallel dominant degree:anisotropy coefficient 煤与瓦斯突出事故危害性大且可能诱发瓦斯爆炸中，受到煤体自身和外部因素影响，煤岩体的电阻率会 等次生灾害，一直是矿井安全生产研究的重点和难 发生异常变化，其变化对电磁勘探法预测煤与瓦斯突 点习.煤与瓦斯突出为煤岩动力灾害，在其孕育过程 出具有重要意义.对此，不少专家学者对煤电阻率及 收稿日期：2016-09-09 基金项目：国家自然科学基金资助项目(51474017)工程科学学报，第 39 卷，第 7 期: 988--995，2017 年 7 月 Chinese Journal of Engineering，Vol． 39，No． 7: 988--995，July 2017 DOI: 10． 13374 /j． issn2095--9389． 2017． 07． 003; http: / /journals． ustb． edu． cn 不同温度下无烟煤电阻率的层理效应 陈 立1，2) ，张英华1) ，黄志安1) ，高玉坤1) ，白智明1) 1) 北京科技大学金属矿山高效开采与安全教育部重点实验室，北京 100083 2) 河北工程大学矿业与测绘工程学院，邯郸 056038 通信作者，E-mail: zyhustb@ 163． com 摘 要 选取层理面与轴向夹角 θ 为 0°、30°、45°、60°和 90°的无烟煤样，采用 CHI660E 型电化学工作站，在 0 ～ 95 ℃ 温度下 测试煤样的 I--V 曲线，提出串并联主导程度概念，采用最小势能原理和电荷极化原理，分析和研究不同温度下层理结构对电 阻率的影响机理及规律． 结果表明: 无烟煤电阻率随温度升高呈现较强的规律性，当 θ 为 0°时在 55 ℃ 时出现拐点，其余均在 35 ℃时出现拐点; 串并联主导程度解释了层理结构对电阻率的影响机理，由关键层理面的数量和开始通过时间来决定; 无烟 煤电阻率受层理结构影响显著，随 θ 增大呈现递增规律; 无烟煤各向异性系数随温度升高而增大，在 35 ～ 65 ℃范围内，增大近 2 倍． 关键词 煤电阻率; 层理效应; 温度; 串并联主导程度; 各向异性系数 分类号 TD713; P631. 3 Effects of bedding plane on anthracite coal resistivity under different temperatures CHEN Li1，2) ，ZHANG Ying-hua1)  ，HUANG Zhi-an1) ，GAO Yu-kun1) ，BAI Zhi-ming1) 1) Key Laboratory of the Ministry of Education of China for High-Efficient Mining and Safety of Metal Mines，University of Science and Technology Bei￾jing，Beijing 100083，China 2) College of Mining and Surveying Engineering，Hebei University of Engineering，Handan 056038，China Corresponding author，E-mail: zyhustb@ 163． com ABSTＲACT This study tested the current vs． voltage curves of coals with angles of 0°，30°，45°，60°，and 90° between the bedding plane and the axial direction at temperatures from 0 to 95 ℃ using a CHI660E electrochemical workstation． The concept of the series-parallel dominant degree was put forward． Moreover，the influence mechanism and the rule of the bedding structure of anthracite coal on coal resistivity under different temperatures were analyzed and investigated using the principle of minimum potential energy and polarization charge． The results show that the resistivity of the anthracite coal exhibits a strong regularity with temperature rise． A turn￾ing point appears at 55 ℃ for θ of the 0° samples，whereas the other samples have a turning point at 35 ℃ ． The series-parallel domi￾nant degree reflects the impact mechanism of the bedding structure on coal resistivity and depends on the number of key bedding surface and the start time of the current going through． The resistivity increases with the increasing θ． In addition，the anisotropy coefficient of the anthracite coal increases with the temperature rise and elevates nearly twice in the scope of 35 to 65 ℃ ． KEY WOＲDS coal resistivity; bedding effect; temperature; series-parallel dominant degree; anisotropy coefficient 收稿日期: 2016--09--09 基金项目: 国家自然科学基金资助项目( 51474017) 煤与瓦斯突出事故危害性大且可能诱发瓦斯爆炸 等次生灾害，一直是矿井安全生产研究的重点和难 点［1--3］． 煤与瓦斯突出为煤岩动力灾害，在其孕育过程 中，受到煤体自身和外部因素影响，煤岩体的电阻率会 发生异常变化，其变化对电磁勘探法预测煤与瓦斯突 出具有重要意义． 对此，不少专家学者对煤电阻率及