考虑层理方向煤岩的静动巴西劈裂试验研究

doi:10.13722/j.cnki.jrme.2015.0608

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摘要利用MTS815岩石力学测试系统和SHPB动态测试系统分别对垂直、平行2种层理方向煤岩进行静、动巴西劈裂试验研究，旨在探讨不同加载率下，层理煤岩的抗拉强度及其破坏特性。试验结果表明：(1) 煤岩具有较强的各向异性特性。平行层理方向煤岩抗拉强度大于垂直层理方向煤岩的抗拉强度；平行层理方向煤岩随加载率变化，其抗拉强度的波动较垂直层理煤岩明显，离散现象更为显著；垂直层理煤岩破断形态较平行层理煤岩更具多样性。(2) 煤岩抗拉强度及变形特性具有明显的应变率效应。随加载率增大，煤岩抗拉强度增大，呈线性或乘幂关系；加载率越大，煤岩越破碎。(3) 煤岩自身组成成分及构造特点是煤岩离散性的重要影响因素，也是影响煤岩强度、变形各向异性特征的内在原因。

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关键词 ：岩石力学, 煤岩, 加载率, 层理, 巴西劈裂试验

Abstract：In order to investigate the tensile strength and failure characteristics of bedding coal rock under different loading rates，the static and dynamic Brazilian splitting tests were carried out with MTS815 rock mechanical test system and SHPB dynamic test system considering the vertical and parallel bedding directions. The results showed that the tensile strength of coal rock was anisotropic. The tensile strength of parallel bedding coal rock was greater than that of the vertical bedding coal rock. For the parallel bedding coal rock，the fluctuation of the tensile strength was greater with the increasing of loading rate and was significantly scattered. The vertical bedding coal rock had multiple fracturing modes. The strain rate had significant effect on the tensile strength and deformation. The tensile strength and strain rate were related linearly or in power function. The higher the loading rate was，the more severe the coal rock crushed. The composition and structural characteristics of coal rock were the important influence factors for the property discrepancy of coal rock and were the internal causes for the strength and deformation anisotropy of coal rock.

Key words： rock mechanics coal rock loading rate bedding direction Brazilian splitting test

引用本文:

刘晓辉1，2，3，戴峰3，刘建锋3，张茹3. 考虑层理方向煤岩的静动巴西劈裂试验研究[J]. 岩石力学与工程学报, 2015, 34(10): 2098-2105.
LIU Xiaohui1，2，3，DAI Feng3，LIU Jianfeng3，ZHANG Ru3. BRAZILIAN SPLITTING TESTS ON COAL ROCK CONSIDERING BEDDING DIRECTION UNDER STATIC AND DYNAMIC LOADING RATE. , 2015, 34(10): 2098-2105.

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http://www.rockmech.org/CN/10.13722/j.cnki.jrme.2015.0608 或 http://www.rockmech.org/CN/Y2015/V34/I10/2098

[3]	姜耀东，赵毅鑫，刘文岗，等. 煤岩冲击失稳的机制和实验研究[M].北京：科学出版社，2009：12-18.(JIANG Yaodong，ZHAO Yixin，LIU Wengang，et al. Investigation on the mechanism of coal bumps and relating experiments[M]. Beijing：Science Press，2009：12-18.(in Chinese)) " target="_blank">
[5]	BALECZKY M，VANDYCK M. 矿山岩体力学[M]. 于振海，刘天泉译. 北京：煤炭工业出版社，1985：223-227.(BALECZKY M，VANDYCK M. Mining rock mass mechanics[M]. Translated by YU Zhenhai，LIU Tianquan. Beijing：Coal Industry Publishing，1985：223-227.(in Chinese)) " target="_blank">
[9]	中华人民共和国行业标准编写组. SL264—2001 水利水电工程岩石试验规程[S]. 北京：中国水利水电出版社，2001.(The Professional Standards Compilation Group of People?s Republic of China. SL264—2001 Specifications for rock tests in water conservancy and hydroelectric engineering[S]. Beijing：China Water Conservancy and Hydropower Press，2001.(in Chinese)) " target="_blank">
[11]	中华人民共和国行业标准编写组. MT 47—87煤和岩石单向抗拉强度测定方法[S]. 北京：煤炭工业出版社，1987.(The Professional Standards Compilation Group of People?s Republic of China. MT 47—87 Methods for determining the one-way tensile strength mechanical properties of coal and rock[S]. Beijing：Coal Industry Publishing House，1987.(in Chinese)) " target="_blank">
[13]	吴基文，闫立宏. 煤岩抗拉强度两种室内间接测定方法比较与成果分析[J]. 岩石力学与工程学报，2004，23(10)：1 643-1 647.(WU Jiwen，YAN Lihong. Comparison study on two kinds of indirect measurement methods of tensile strength of coal in Lab[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(10)：1 643- 1 647.(in Chinese)) " target="_blank">
[16]	刘恺德，刘泉生，朱元广，等. 考虑层理方向效应煤岩巴西劈裂及单轴压缩试验研究[J]. 岩石力学与工程学报，2013，32(2)：308-316.(LIU Kaide，LIU Quansheng，ZHU Yuanguang，et al. Experimental study of coal considering directivity effect of bedding plane under Brazilian splitting and uniaxial compression[J]. Chinese Journal of Rock Mechanics and Engineering，2013，32(2)：308-316.(in Chinese))
[6]	ALEXEEV A D，REVVA V N，ALYSHEV N A，et al. True triaxial loading apparatus and its application to coal outburst prediction[J]. International Journal of Coal Geology，2004，58(4)：245-250.
[8]	International Society for Rock Mechanics(ISRM). Suggested methods for determining tensile strength of rock materials[J]. International Journal of rock Mechanics and Mining Sciences and Mining Sciences and Geomechanics Abstracts，1978，15(1)：99-103. " target="_blank">
[22]	DAI F，HUANG S，XIA K W. Some fundamental issues in dynamic compression and tension tests of rock using Split Hopkinson pressure bar[J]. Rock Mechanics and Rock Engineering，2010，43(6)：657-666.
[1]	杨永杰. 煤岩强度、变形及微震特征的基础试验研究[博士学位论文][D]. 青岛：山东科技大学，2006.(YANG Yongjie. Basic experimental study on characteristics of strength，deformation and microseismic under compression of coal[Ph. D. Thesis][D]. Qingdao：Shandong University of Science and Technology，2006.(in Chinese)) " target="_blank">
[2]	YU M H. Advances in strength theories for materials under complex stress state in the 20th century[J]. Applied Mechanics Reviews，2002，55(3)：169-218. " target="_blank">
[4]	蔡美峰. 岩石力学与工程[M]. 北京：科学出版社，2002：39-43. (CAI Meifeng. Rock mechanics and engineering[M]. Beijing：Science Press，2002：39-43.(in Chinese)) " target="_blank">
[7]	OKUBO S，FUKUI K，QI Q X. Uniaxial compression and tension tests of anthracite and loading rate dependence of peak strength[J]. International Journal of Coal Geology，2006，68：196-204. " target="_blank">
[10]	中华人民共和国国家标准编写组. GB/T 50266—99工程岩体试验方法标准[S]. 北京：中国计划出版社，1999.(The National Standards Compilation Group of People?s Republic of China. GB/T 50266—99 Standard for tests method of engineering rock masses[S]. Beijing：China Planning Press，1999.(in Chinese)) " target="_blank">
[12]	黄书岭，冯夏庭，张传庆. 脆性岩石广义多轴应变能强度准则及试验验证[J]. 岩石力学与工程学报，2008，27(1)：124-134.(HUANG Shuling，FENG Xiating，ZHANG Chuanqing. A new generalized polyaxial strain energy strength criterion of brittle rock and polyaxial test validation[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(1)：124-134.(in Chinese))
[14]	闫立宏. 杨庄煤矿煤岩波速特征及与其强度的关系研究[J]. 煤炭科学技术，2006，34(6)：57-60.(YAN Lihong. Relationship study between characteristics and strength of coal and rock wave velocity in Yangzhuang mine[J]. Coal Science and Technology，2006，34(6)：57-60.(in Chinese)) " target="_blank">
[15]	颜志丰. 山西晋城地区煤岩力学性质及煤储层压裂模拟研究[博士学位论文][D]. 北京：中国地质大学，2009.(YAN Zhifeng. Research of the coal mechanical properties and coal reservoir fracturing simulation in Jincheng district，Shanxi Province[Ph. D. Thesis][D]. Beijing：China University of Geosciences，2009.(in Chinese)) " target="_blank">
[17]	于亚伦. 高应变率下的岩石动载特性[J]. 北京科技大学学报，1992，14(2)：128-134.(YU Yalun. The dynamic behavior of magnetites and granite under high strain rates[J]. Journal of University of Science and Technology Beijing，1992，14(2)：128-134.(in Chinese)) " target="_blank">
[18]	中华人民共和国国家标准编写组. GB/T 23561.10—2010煤与岩石物理力学性质测定方法[S]. 北京：中国标准出版社，2010.(The National Standards Compilation Group of People?s Republic of China. GB/T 23561.10—2010 Methods for determining the physical and mechanical properties of coal and rock[S]. Beijing：China Standards Press，2010.(in Chinese)) " target="_blank">
[20]	尤明庆，陈向雷，苏承东. 干燥及饱水岩石圆盘和圆环的巴西劈裂强度[J]. 岩石力学与工程学报，2011，30(3)：464-472.(YOU Mingqing，CHEN Xianglei，SU Chengdong. Briazilian splitting strengths of discs and rings of rocks in dry and saturated conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(3)：464-472.(in Chinese))
[21]	LIU X H，DAI F，ZHANG R，et al. Static and dynamic uniaxial compression tests on coal rock considering the bedding directivity[J]. Environmental Earth Sciences，2015，73(10)：5 933-5 949. " target="_blank">
[23]	李夕兵. 岩石动力学基础与应用[M]. 北京：科学出版社，2014：49-51.(LI Xibing. Rock dynamics fundamentals and applications[M]. Beijing：Science Press，2014：49-51.(in Chinese)) " target="_blank">
[24]	薛奕忠，刘涛，唐礼忠，等. SHPB动态巴西劈裂裂纹起裂及扩展研究[J]. 武汉理工大学学报，2013，35(3)：97-101.(XUE Yizhong，LIU Tao，TANG Lizhong，et al. Study of SHPB dynamic split crack initiation and propagation[J]. Journal of Wuhan University of Technology，2013，35(3)：97-101.(in Chinese)) " target="_blank">
[19]	杨伯源，张义同. 工程弹塑性力学[M]. 北京：机械工业出版社，2003：74-83.(YANG Boyuan，ZHANG Yitong. Engineering elasticity and plasticity[M]. Beijing：China Machine Press，2003：74-83.(in Chinese)) " target="_blank">