预制裂纹煤样受载破坏的红外辐射特征研究

程富起, 李忠辉, 殷山, 魏洋, 孙英豪

程富起,李忠辉,殷山,等.预制裂纹煤样受载破坏的红外辐射特征研究[J].工矿自动化,2017,43(8):44-49.. DOI: 10.13272/j.issn.1671-251x.2017.08.009
引用本文: 程富起,李忠辉,殷山,等.预制裂纹煤样受载破坏的红外辐射特征研究[J].工矿自动化,2017,43(8):44-49.. DOI: 10.13272/j.issn.1671-251x.2017.08.009
CHENG Fuqi, LI Zhonghui, YIN Shan, WEI Yang, SUN Yinghao. Research on infrared radiation characteristics of pre-cracked coal sample under loaded breaking[J]. Journal of Mine Automation, 2017, 43(8): 44-49. DOI: 10.13272/j.issn.1671-251x.2017.08.009
Citation: CHENG Fuqi, LI Zhonghui, YIN Shan, WEI Yang, SUN Yinghao. Research on infrared radiation characteristics of pre-cracked coal sample under loaded breaking[J]. Journal of Mine Automation, 2017, 43(8): 44-49. DOI: 10.13272/j.issn.1671-251x.2017.08.009

预制裂纹煤样受载破坏的红外辐射特征研究

基金项目: 

“十三五”国家重点研发计划资助项目(2016YFC0801404)

国家自然科学基金资助项目(51674254)

中国矿业大学煤炭资源与安全开采国家重点实验室自主研究课题资助项目(SKLCRSM15X03)

详细信息
  • 中图分类号: TD313

Research on infrared radiation characteristics of pre-cracked coal sample under loaded breaking

  • 摘要: 对预制裂纹煤样进行了单轴压缩实验,研究了预制裂纹煤样受载破坏过程中红外辐射温度及其变化规律。实验结果表明:预制裂纹煤样在受载破坏过程中,红外辐射温度曲线出现突变现象,主破裂时不同预制裂纹角度煤样的红外辐射温度均突升;主破裂时预制裂纹煤样的红外辐射温度突变率随预制裂纹角度的增大先升后降,45°预制裂纹煤样的红外辐射温度突变率最大。预制裂纹煤样的红外辐射变化规律与载荷及预制裂纹密切相关,能够很好地反映含宏观缺陷煤样受载时内部破裂的情况。
    Abstract: Uniaxial compression test was conducted on pre-cracked coal sample, and infrared radiation temperature and its change rule of the pre-cracked coal sample under loaded breaking were researched. The experimental results show that infrared radiation temperature curve will mutate in process of loaded breaking of the pre-cracked coal sample, and the infrared radiation temperatures of the pre-cracked coal samples with different angles will suddenly increase during main rupture. The mutation rate of infrared radiation temperature increases first and then decreases with increase of pre-cracked angle during main rupture, and the mutation rate of infrared radiation temperature of the pre-cracked coal sample with 45° is the largest. The change rule of infrared radiation of the pre-cracked coal sample is closely related to load and pre-crack, which can reflect internal rupture of macroscopic defective coal sample under load.
计量
  • 文章访问数:  80
  • HTML全文浏览量:  9
  • PDF下载量:  11
  • 被引次数: 0
出版历程
  • 刊出日期:  2017-08-09

目录

    /

    返回文章
    返回