[1]张宇,任金虎,陈占清.三轴压缩下不同岩性煤岩体的强度及变形特征[J].西安科技大学学报,2015,(06):708-714.[doi:10.13800/j.cnki.xakjdxxb.2015.0606]
 ZHANG Yu,REN Jin-hu,CHEN Zhan-qing.Different lithologies coal and rock under the triaxial compression strength and deformation characteristics[J].Journal of Xi'an University of Science and Technology,2015,(06):708-714.[doi:10.13800/j.cnki.xakjdxxb.2015.0606]
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三轴压缩下不同岩性煤岩体的强度及变形特征(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2015年06期
页码:
708-714
栏目:
出版日期:
2015-12-30

文章信息/Info

Title:
Different lithologies coal and rock under the triaxial compression strength and deformation characteristics
作者:
张宇12任金虎3陈占清12
1.中国矿业大学 深部岩土力学与地下工程国家重点实验室,江苏 徐州 221008; 2.中国矿业大学 力学与建筑工程学院,江苏 徐州 221008; 3.内蒙古久和能源装备有限公司 研发中心,陕西 西安 710018
Author(s):
ZHANG Yu12REN Jin-hu3CHEN Zhan-qing12
1.State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology,Xuzhou 221008,China; 2.School of Mechanics and Civil Engineering,China University of Mining and Technology,Xuzhou 221008,China; 3.Research and Development Center,Inner Mongolia Geoho Energy Equipment Co.,Ltd,Xi'an 710018,China
关键词:
三轴压缩 围压 破坏形式 峰值强度 弹性模量
Keywords:
Triaxial compression confining pressure failure mode peak intensity elastic modulus
分类号:
TD 315
DOI:
10.13800/j.cnki.xakjdxxb.2015.0606
文献标志码:
A
摘要:
煤矿井下存在多种岩性的煤岩体,其力学强度和变形特征直接影响巷道支护效果。利用CRIMS-DDL600电子万能试验机,进行了不同围压下砂岩、矸石与煤样的三轴压缩试验,采用莫尔准则诠释了不同岩性的试样破坏角大小不等,通过图形对比和现象分析,得到了围压对3种不同岩性的试样应力、应变曲线及变性特征的影响。结果表明:3种性质的试样三轴压缩过程中都经历了初始压密阶段、弹性阶段、屈服阶段与破坏阶段,且围压越大,试样初始压密阶段越长; 在试验加载的围压范围内,3种性质的试样破坏形式并不相同,且3种不同岩性的试样破坏角大小相差较大,砂岩破坏角最大,煤破坏角最小,3种性质的试样其峰值强度随着围压的增大而增长; 3种性质的试样符合Coulomb强度准则,依据莫尔应力圆给出3种试样内聚力和内摩擦角的大小; 随着围压的增大,3种性质的试样弹性模量呈增大趋势,且围压对试样弹性模量的影响因试样类型的不同而不同。
Abstract:
There are many lithology of coal and rock in coal mines,its mechanical strength and deformation characteristics directly affect the roadway supporting effect.With CRIMS-DDL600 electronic universal testing machine,the sandstone,coal gangue and triaxial compression tests are carried out under different confining pressures.By means of the criterion of Moore explains different lithology of specimens damage Angle sizes,and by comparing the graphics and analysis of the phenomenon,the effect of confining pressure on the three samples stress-strain curve and deformation features is analyzed and compared.The results show that:Specimens with three kinds of properties of the three axial compression process has gone through the initial compaction stage,elastic stage,yield and failure stage,and the more pressure and confining,the longer specimen initial compression phase is; in confining pressure range,three kinds of failure forms of samples are not the same,and specimen failure angle's size of the three kinds of rock are of large difference,meanwhile there peak strength increases with the increase of confining pressure; also there properties are consistent with Coulomb strength criterion,and the size of cohesion and internal friction angle is given according to Moore's circle; with the growing of confining pressure,elastic modulus of three kinds increases,and the pressure effect on the elastic modulus varies due to the sample types.

参考文献/References:

[1] 贾喜荣.岩石力学与岩层控制[M].徐州:中国矿业大学出版社,2010. JIA Xi-rong.Rock mechanics and strata control[M].Xuzhou:China University of Mining and Technology Press,2010.
[2]许满贵,董康乾,董养存,等.煤岩与瓦斯微元体破坏突出机理[J].西安科技大学学报,2014,34(3):249-254. XU Man-gui,DONG Kang-qian,DONG Yang-cun,et al.Mechanism of coal and gas outburst with microelement destruction[J].Journal of Xi'an University of Science and Technology,2014,34(3):249-254.
[3]尹光志,鲜学福.含瓦斯煤岩固气耦合失稳理论与实验研究[M].北京:科学出版社,2010. YIN Guang-zhi,XIAN Xue-fu.Coal containing gas solid gas stability theory and experimental study of coupling loss[M].Beijing:Science Press,2010.
[4]李春杰,刘银先,高红彬,等.“三软”煤层采场覆岩运动及应力分布规律[J].西安科技大学学报,2015,35(2):187-191. LI Chun-jie,LIU Yin-xian,GAO Hong-bin,et al.Overlying strata movement and stress distribution law in the “three-soft” coal seam[J].Journal of Xi'an University of Science and Technology,2015,35(2):187-191.
[5]杨圣奇,苏承东,徐卫亚.大理岩常规三轴压缩下强度和变形特性的试验研究[J].岩土力学,2005,26(3):475-478. YANG Sheng-qi,SU Cheng-dong,XU Wei-ya.Experimental investigation on strength and deformation properties of marble under conventional triaxial compression[J].Rock and Soil Mechanics,2005,26(3):475-478.
[6]胡卸文,伊小娟,王帅雁,等.不同三轴应力途径下红砂岩力学特性试验研究[J].水文地质工程地质,2009(4):57-61. HU Xie-wen,YI Xiao-juan,WANG Shuai-yan,et al.Study on red sandstone mechanical property under different stress path by triaxial test[J].Hydrogeology & Engineering Geology,2009(4):57-61.
[7]尤明庆.岩石试样的杨氏模量与围压的关系[J].岩石力学与工程学报,2003,22(1):53-60. YOU Ming-qing.Effect of confining pressure on Young's modulus of rock specimen[J].Chinese Journal of Rock Mechanics and Engineering,2003,22(1):53-60.
[8]杨永杰,宋扬,陈绍杰.三轴压缩煤岩强度及变形特征的试验研究[J].煤炭学报,2006,31(2):151-153. YANG Yong-jie,SONG Yang,CHEN Shao-jie.Test study of coal's strength and deformation characteristics under triaxial compression[J].Journal of China Coal Society,2006,31(2):151-153.
[9] 杨永杰,宋 扬,陈绍杰,等.煤岩强度离散性及三轴压缩试验研究[J].岩土力学,2006,27(10):1 763-1 766. YANG Yong-jie,SONG Yang,CHEN Shao-jie,et al.Experimental study on strength discreteness and triaxial compression of coal[J].Rock and Soil Mechanics,2006,27(10):1 763-1 766.
[10]梁忠雨,计振强,陈占清,等.煤的力学性能测定实验研究[J].煤炭工程,2013,(10):96-98. LIANG Zhong-yu,JI Zhen-qiang,CHEN Zhan-qing,et al.Study on measuring experiment of coal mechanics performances[J].Coal Engineering,2013,(10):96-98.
[11]苏承东,翟新献,李永明,等.煤样三轴压缩下变形和强度分析[J].岩石力学与工程学报,2006,25(1):2 964-2 968. SU Cheng-dong,ZHAI Xin-xian,LI Yong-ming,et al.Study on deformation and strength of coal samples in triaxial compression.[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(1):2 964-2 968.
[12]苏承东,高保彬,南 华,等.不同应力路径下煤样变形破坏过程声发射特征的试验研究[J].岩石力学与工程学报,2009,28(4):757-766. SU Cheng-dong, GAO Bao-bin, NAN Hua, et al. Experimental study on acoustic emission characteristics during deformation and failure processes of coal samples under different stress paths[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(4):757-766.
[13]李小双,尹光志,赵洪宝,等.含瓦斯突出煤三轴压缩下力学性质试验研究[J].岩石力学与工程学报,2010,29(1):3 351-3 358. LI Xiao-shuang,YIN Guang-zhi,ZHAO Hong-bao,et al.Experimental study of mechanical properties of outburst coal containing gas under triaxial compression[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(1):3 351-3 358.
[14]许 江,鲜学福,杜云贵,等.含瓦斯煤的力学特性的实验分析[J].重庆大学学报,1993,16(5):42-47. XU Jiang,XIAN Xue-fu,DU Yun-gui,et al. An experimental study on the mechanical property of the gas-filled coal[J].Journal of Chongqing University,1993,16(5):42-47.
[15]李小春,白 冰,唐礼忠,等.较低和较高围压下煤岩三轴试验及其塑性特征新表述[J].岩土力学,2010,31(3):677-682. LI Xiao-chun,BAI Bing,TANG Li-zhong,et al.Triaxial tests of coal under low and high confining pressures and its plastic characteristics description[J].Rock and Soil Mechanics,2010,31(3):677-682.
[16]尹光志,王登科,张东明,等.两种含瓦斯煤样变形特性与抗压强度的实验分析[J].岩石力学与工程学报,2009,28(2):410-417. YIN Guang-zhi,WANG Deng-ke,ZHANG Dong-ming,et al. Test analysis of deformation characteristics and compressive strengths of two types of coal specimens containing gas[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(2):410-417.
[17]张雪媛.深井岩巷破坏机理与支护优化研究[J].西安科技大学学报,2014,34(4):390-395. ZHANG Xue-yuan.Failure mechanism and support optimization of deep rock roadway[J].Journal of Xi'an University of Science and Technology,2014,34(4):390-395.
[18]丁国峰,王苏健,谢文兵,等.加固顶板和两帮控制回采巷道底臌研究[J].西安科技大学学报,2014,34(4):384-389. DING Guo-feng,WANG Su-jian,XIE Wen-bing,et al.Mechanism of reinforcing roof and sides for floor heave control of roadway[J].Journal of Xi'an University of Science and Technology,2014,34(4):384-389.
[19]李先贵,李 凯.带压开采下组煤底板采动破坏深度现场实测及模拟研究[J].西安科技大学学报,2014,34(3):261-267. LI Xian-gui,LI Kai.Field measurement and numerical simulation on the depth of floor damage in lower coal mining with water pressure[J].Journal of Xi'an University of Science and Technology,2014,34(3):261-267.
[20]来兴平,刘小明,曹建涛,等.开采扰动区断层采动活化诱发岩体动态变形模型实验[J].西安科技大学学报,2014,34(6):646-651. LAI Xing-ping,LIU Xiao-ming,CAO Jian-tao,et al.Experiment on rock-mass dynamic deformation due to the fault mobilization in the mining disturbed zone[J].Journal of Xi'an University of Science and Technology,2014,34(6):646-651.
[21]王贵荣,任建喜.基于三轴压缩试验的红砂岩本构模型[J].长安大学学报:自然科学版,2006,26(6):49-51. WANG Gui-rong,REN Jian-xi.Constitutive model of red sandstone based on triaxial compression test[J].Journal of Chang'an University:Natural Science Edition,2006,26(6):49-51.
[22]刘鸿文.材料力学[M].北京:高等教育出版社,2003. LIU Hong-wen.Mechanics of Materials[M].Beijing:Higher Education Press,2003.

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备注/Memo

备注/Memo:
基金项目:国家重点基础研究发展计划(973)项目(2013CB227900); 国家自然科学基金委员会与神华集团有限责任公司联合资助项目(U1261201); 国家自然科学基金项目(50974107) 通讯作者:张 宇(1981-),男,江苏徐州人,博士研究生,E-mail:339515124@qq.com
更新日期/Last Update: 2015-11-15