Advanced Search
  • 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引（EI）收录期刊
  • Scopus数据库收录期刊
Volume 38 Issue 11
Turn off MathJax
Article Contents
Abstract
References
MA Zhen-qian, JIANG Yao-dong, LI Yan-wei, YANG Ying-ming, LI Hai-tao. Experimental research on influence of loading rate and confining pressure on energy evolution of coal[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(11): 2114-2121. DOI: 10.11779/CJGE201611023
Citation: MA Zhen-qian, JIANG Yao-dong, LI Yan-wei, YANG Ying-ming, LI Hai-tao. Experimental research on influence of loading rate and confining pressure on energy evolution of coal[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(11): 2114-2121. DOI: 10.11779/CJGE201611023
shu

Experimental research on influence of loading rate and confining pressure on energy evolution of coal

  • 1. Faculty of Resources and Safety Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China;
    2. College of Guizhou University, Guiyang 550025, China;
    3. School of Mechanics and Civil Engineering,China University of Mining and Technology(Beijing), Beijing 100083, China;
    4. State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology(Beijing), Beijing 100083, China

More Information
  • Received Date: April 23, 2015
  • Published Date: November 19, 2016
    Graphical Abstract
    • Abstract
  • A serial of uniaxial and triaxial compression tests on coal samples under different loading rates and confining pressures are conducted by using the TAW-2000 electro-hydraulic servo system. The characteristics of energy dissipation of coal under different loading rates and confining pressures are studied, and the dissipation strain energy conversion rate is also discussed. The results show that the elastic strain energy increases at first and then decreases at stage I of the uniaxial compression tests, and the dissipation strain energy conversion rate, which has a negative correlation with the loading rate, is relatively low. At stage II, the dissipation strain energy increases at first and then decreases with the increasing loading rate. The maximum strain energy dissipation conversion rate occurrs at the peak point or axial stress suddenly falling point after the peak point of stress-strain curve. The dissipation strain energy conversion rate is very sensitive to the confining pressure. That is, the larger the confining pressure, the greater the dissipation strain energy conversion rate, and the faster the damage of the coal.
    • FullText(HTML)
    • References (19)
  • [1]
    谢和平, 鞠 杨, 黎立云．基于能量耗散与释放原理的岩石强度与整体破坏准则[J]. 岩石力学与工程学报, 2005, 24(17): 3003-3010. (XIE He-ping, JU Yang, LI Li-yun, et a1. Criteria for strength and structural failure of rocks Based on energy dissipation and energy release principles[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(17): 3003-3010. (in Chinese))
    [2]
    谢和平, 彭瑞东, 鞠 杨, 等. 岩石破坏的能量分析初探[J]. 岩石力学与工程学报, 2005, 24(15): 2604-2608. (XIE He-ping, PENG Rui-dong, JU Yang, et a1. On energy analysis of rock failure[J]. Chinese Journal of Rock Mechanics and Engineering, 2005, 24(15): 2604-2608. (in Chinese))
    [3]
    杨圣奇, 徐卫亚, 苏承东. 大理岩三轴压缩变形破坏与能量特征研究[J]. 工程力学, 2007, 24(1): 136-141. (YANG Sheng-qi, XU Wei-ya, SU Cheng-dong. Study on deformation failure and energy properties of marble specimen under triaxial compression[J]. Engineering Mechanics, 2007, 24(1): 136-141. (in Chinese))
    [4]
    喻 勇, 尹健民. 三峡花岗岩在不同加载方式下的能耗特征[J]. 岩石力学与工程学报, 2004, 23(2): 205-208. (YU Yong, YIN Jian-min. Energy dissipation properties of the Three Gorges granite under different loading modes[J]. Chinese Journal of Rock Mechanics and Engineering, 2004, 23(2): 205-208. (in Chinese))
    [5]
    尤明庆, 华安增. 岩石试样破坏过程的能量分析[J]. 岩石力学与工程学报, 2002, 21(6): 778-781. (YOU Ming-qing, HUA An-zeng. Energy analysis of failure process of rock specimen[J]. Chinese Journal of Rock Mechanics and Engineering, 2002, 21(6): 778-781. (in Chinese))
    [6]
    刘天为, 何江达, 徐文杰. 大理岩三轴压缩破坏的能量特征分析[J]. 岩土工程学报, 2013, 35(2): 395-400. (LIU Tian-wei, HE Jiang-da, XU Wen-jie. Energy properties of failure of marble samples under triaxial compression[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(2): 395-400. (in Chinese))
    [7]
    陈学章, 何江达, 肖明砾, 等. 三轴卸荷条件下大理岩扩容与能量特征分析[J]. 岩土工程学报, 2014, 36(6): 1106-1112. (CHEN Xue-zhang, HE Jiang-da, XIAO Ming-li, et al. Dilatancy and energy properties of marble under triaxial unloading condition[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(6): 1106-1112. (in Chinese))
    [8]
    黄 达, 谭 清, 黄润秋. 高围压卸荷条件下大理岩破碎块度分形特征及其与能量相关性研究[J]. 岩石力学与工程学报, 2012, 31(7): 1379-1389. (HUANG Da, TAN Qing, HUANG Run-qiu. Failure characteristics of fragmentation and correlation with energy of marble under unloading with high confining pressure[J]. Chinese Journal of Rock Mechanics and Engineering, 2012, 31(7): 1379-1389. (in Chinese))
    [9]
    苏承东, 张振华. 大理岩三轴压缩的塑性变形与能量特征分析[J]. 岩石力学与工程学报, 2008, 27(2): 273-280. (SU Cheng-dong, ZHANG Zhen-hua. Analysis of plastic deformation and energy property of marble under pseudo-triaxial compression[J]. Chinese Journal of Rock Mechanics and Engineering, 2008, 27(2): 273-280. (in Chinese))
    [10]
    许国安, 牛双建, 靖洪文, 等. 砂岩加卸载条件下能耗特征试验研究[J]. 岩土力学, 2011, 32(12): 3611-3617. (XU Guo-an, NIU Shuang-jian, JING Hong-wen, et al. Experimental study of energy features of sandstone under loading and unloading[J]. Rock and Soil Mechanics, 2011, 32(12): 3611-3617. (in Chinese))
    [11]
    宋义敏, 姜耀东, 马少鹏, 等. 岩石变形破坏全过程的变形场和能量演化研究[J]. 岩土力学, 2012, 33(5): 1352-1356. (SONG Yi-min, JIANG Yao-dong, MA Shao-peng, et al. Evolution of deformation fields and energy in whole process of rock failure[J]. Rock and Soil Mechanics, 2012, 33(5): 1352-1356. (in Chinese))
    [12]
    黎立云, 徐志强, 谢和平, 等. 不同冲击速度下岩石破坏能量规律的实验研究[J]. 煤炭学报, 2011, 36(12): 2007-2011. (LI Li-yun, XU Zhi-qiang, XIE He-ping, et al. Failure experimental study on energy laws of rock under differential dynamic impact velocities[J]. Journal of China Coal Society, 2011, 36(12): 2007-2011. (in Chinese))
    [13]
    张志镇, 高 峰. 受载岩石能量演化的围压效应研究[J]. 岩石力学与工程学报, 2015, 34(1): 1-11. (ZHANG Zhi-zhen, GAO Feng. Confining pressure effect on rock energy[J]. Chinese Journal of Rock Mechanics and Engineering, 2015, 34(1): 1-11. (in Chinese))
    [14]
    彭瑞东, 鞠 杨, 高 峰, 等. 三轴循环加卸载下煤岩损伤的能量机制分析[J]. 煤炭学报, 2014, 39(2): 245-252. (PENG Rui-dong, JU Yang, GAO Feng, et al. Energy analysis on damage of coal under cyclical triaxial loading and unloading conditions[J]. Journal of China Coal Society, 2014, 39(2): 245-252. (in Chinese))
    [15]
    许 江, 李波波, 周 婷, 等. 循环荷载作用下煤变形与能量演化规律试验研究[J]. 岩石力学与工程学报, 2014, 33(增刊2): 3564-3572. (XU Jiang, LI Bo-bo, ZHOU Ting, et al. Experimental study of deformation and energy evolution law of coal under cyclic loading[J]. Chinese Journal of Rock Mechanics and Engineering, 2014, 33(S2): 3564-3572. (in Chinese))
    [16]
    康向涛, 黄 滚, 宋真龙, 等. 三轴压缩下含瓦斯煤的能耗与渗流特性研究[J]. 岩土力学, 2015, 36(3): 762-768. (KANG Xiang-tao, HUANG Gun, SONG Zhen-long, et al. Research on characteristics of energy dissipation and seepage of coal containing gas under triaxial compression[J]. Rock and Soil Mechanics, 2015, 36(3): 762-768. (in Chinese))
    [17]
    韩立军. 岩石破坏后的结构效应及锚注加固特性研究[D]. 徐州: 中国矿业大学, 2004. (HAN Li-jun. Research on structural effect of post failure rock and consolidation character of anchoring grouting[D]. Xuzhou: China University of Mining & Technology, 2004. (in Chinese))
    [18]
    黄 达, 黄润秋, 张永兴. 粗晶大理岩单轴压缩力学特性的静态加载速率效应及能量机制试验研究[J]. 岩石力学与工程学报, 2012, 31(2): 245-255. (HUAGN Da, HUANG Rui-qiu, ZHANG Yong-xing. Experimental investigation on static loading rate effects on mechanical properties and energy mechanism of coarse crystal grain marble under uniaxial compression[J]. Chinese Journal of Rock Mechanics and Engineering, 2012, 31(2): 245-255. (in Chinese))
    [19]
    范鹏贤, 王明洋, 钱七虎. 深部非均匀岩体卸载拉裂的时间效应和主要影响因素[J]. 岩石力学与工程学报, 2010, 29(7): 1389-1396. (FAN Peng-xian, WANG Ming-yang, QIAN Qi-hu. The time effect and main influence factors of the splitting of deep-seated rock with nonuniformities[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(7): 1389-1396. (in Chinese))
    • Related Articles
  • Supplements (0)

Catalog

    Get Citation
    PDF
    XML
    Article views PDF downloads Cited by()
    Related
    Copyright © 2010 Editorial By Chinese Journal of Geotechnical Engineering 苏ICP备05007122号-11公安联网备案号：32010602011255
    Editorial Office address：34 Hujuguan,Nanjing 210024,ChinaPostal Code：210024Tel：025-85829534，85829556E-mail: ge@nhri.cn

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return