层理煤岩SHPB冲击破坏动态力学特性实验

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振动与冲击 ›› 2017, Vol. 36 ›› Issue (21) : 117-124.

论文

解北京，王新艳，吕平洋

作者信息 +

Dynamic mechanical properties of bedding coal and rock impact damage SHPB testing

XIE Bei-jing, WANG Xin-yan, LV Ping-yang

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文章历史 +

摘要

为了研究层理对煤岩动态力学破坏特征的影响，利用Φ75mm大直径分离式霍普金森压杆（SHPB）动载实验装置，采用纺锤形子弹和超声波检测仪，开展层理原煤试样（垂直层理和水平层理取样）和均质性较好的砂岩试样冲击破坏动态力学特征对比实验。实验结果表明：（1）纺锤形子弹产生的近似半正弦波加载具有平缓应力波上升沿特征，更适合煤岩类脆性材料动载实验；（2）煤体层理使超声波垂直穿过时产生层理效应,导致波速严重衰减，试验中水平层理取样的原煤超声波波速约为垂直层理的2倍；（3）层理原煤和砂岩的动载破坏应力-应变曲线差异较大，层理特征是导致原煤具有较长塑性变形阶段和曲线波动性的重要因素；（4）砂岩的动态弹性模量比层理原煤试样大1个数量级，层理影响了煤岩冲击破坏动力学特性。

Abstract

In order to study the influence of bedding to dynamic mechanical failure characteristics properties of coal and rock, the experiments that impact the bedding coal samples (vertical bedding and horizontal bedding sampling ) and sandstone samples with good homogeneity were conducted by using the Φ75mm large diameter split Hopkinson pressure bar (SHPB) dynamic load test device, spindle bullet and ultrasonic detector. Experimental results show that: (1) the approximate half sine wave generated by the spindle bullet with a gentle stress wave rising edge feature, which is more suitable for dynamic load test of brittle material of coal rock; (2) ultrasonic vertically through the coal bedding surface will produce serious attenuation effect, leading the ultrasonic velocity of horizontal bedding sampling coal sample is 2 times to the vertical stratification sampling; (3) dynamic load stress-strain curves have great differences between bedding coal and sandstone, and bedding is an important factor to the coal with a long plastic deformation stage and curve of volatility; (4) the dynamic elastic modulus ratio of sandstone is 1 orders of magnitude greater than bedding coal, the bedding has an effect on dynamic mechanical properties of coal and rock impact damage.

导出引用

解北京，王新艳，吕平洋. 层理煤岩SHPB冲击破坏动态力学特性实验[J]. 振动与冲击, 2017, 36(21): 117-124

XIE Bei-jing, WANG Xin-yan, LV Ping-yang. Dynamic mechanical properties of bedding coal and rock impact damage SHPB testing[J]. Journal of Vibration and Shock, 2017, 36(21): 117-124

参考文献

[1] Laubach S E, Marrett R A, Olson J E, et al. Characteristics and origins of coal cleat: a review［J］. International Journal of Coal Geology, 1998(35): 175 －207．
[2] Bennett J G. Broken coal［J］．International Journal of Fuel, 1936(10): 22-39.
[3] 赵明鹏. 煤层节理及其工程地质意义[J]. 工程地质学报，2001， 9(02)：152-157.
ZHAO Ming-peng. Coal bed joints and their engineering-geological significance[J]. Journal of Engineering Geology, 2001, 9(02): 152-157.
[4] 邓博知，康向涛，李星，等. 不同层理方向对原煤变形计渗流特性的影响[J]. 煤炭学报，2015，40（4）： 888-894.
Deng Bo-zhi, Kang Xian-gtao, Li Xing, etal. Effect of different bedding directions on coal deformation and permeability characteristics[J]. Journal of China Coal Society, 2015, 40(4): 888-894．
[5] 解北京. 煤冲击破坏动力学特性及磁场变化特征实验研究[D]. 中国矿业大学(北京), 2013.
[6] 卢芳云，陈荣，林玉亮，等著. 霍普金森杆实验技术[M]. 北京：科学出版社，2013：1-2
[7] 李夕兵，著. 岩石动力学基础与应用[M]. 北京：科学出版社，2014：176-217，80-91
[8] 陶俊林，著. SHPB系统实验技术研究[M]. 北京：科学出版社，2014：114-127
[9] 王宇涛，刘殿书，李胜林，等. 基于Φ75mm SHPB系统的高温混凝土动态性能研究[J]. 振动与冲击，2014，33(17)：12-17
WANG Yu-tao, LIU Dian-shu, LI Sheng-lin, et al. Dynamic performance of concrete based on a Φ75mm SHPB system under high temperature[J]. Journal of Vibration and Shock, 2014, 33(17): 12-17.
[10] 单仁亮，程瑞强，高文蛟．云驾岭煤矿无烟煤的动态本构模型研究［J］．岩石力学与工程学报， 2006， 25(11)：2258-2263
Shan Ren-liang， Cheng Rui-qiang， Gao Wen-jiao． Study on dynamic constitutive model of anthracite of Yunjialing Coal Mine [J]. Chinese Journal of Rock Mechanics and Engineering, 2006, 25(11): 2258－2263．
[11] 高文蛟，单仁亮，苏永强．无烟煤单轴冲击动态强度理论[J]. 爆炸与冲击，2013,33（3）：297-302.
GAO Wen-jiao, SHAN Ren-liang, SU Yong-qiang. Theoretical research on dynamic strength of anthracite under uniaxial impact[J]. Explosion and shock waves, 2013, 33(3): 297-302.
[12] 李成武，解北京，杨威等．煤冲击破坏过程中的近距离瞬变磁场变化特征研究[J]. 岩石力学与工程学报，2012，31( 5) ：973-981.
LI Cheng-wu, XIE Bei-jing, YANG Wei, et al. Characteristics of transient magnetic nearby field in process of coal impact damage[J]. Chinese journal of rock mechanics and engineering, 2012, 31(5): 973-981.
[13] 付玉凯，解北京，王启飞. 煤的动态力学本构模型[J]. 煤炭学报，2013, 38（10）：1769-1774.
FU Yu-kai, XIE Bei-jing, WANG Qi-fei. Dynamic mechanical constitutive model of the coal[J]. Journal of China Coal Society, 2013, 38(10): 1769-1774.
[14] 刘晓辉，张茹，刘建锋．不同应变率下煤岩冲击动力试验研究[J]. 煤炭学报，2012，37(9):1528－1534．
Liu Xiaohui， ZhangRu， Liu Jianfeng． Dynamic test study of coal rock under different strain rates［J］． Journal of China Coal Society, 2012，37(9):1528－1534．
[15] 李明，茅献彪，曹丽丽，等. 高应变率下煤力学特性试验研究[J]. 采矿与安全工程学报，2015，32(02)：317-324.
LI Ming, MAO Xian-biao, CAO Li-li, et al. Experimental study on mechanical properties of coal under high strain rate[J]. Journal of mining & safety engineering, 2015, 32(02): 317-324.
[16] 李成武，解北京，杨威，等. 基于HHT法的煤冲击破坏 SHPB 测试信号去噪[J]. 煤炭学报，2012,37（11）：1796-1802.
LI Cheng-wu, XIE Bei-jing, YANG Wei, et al. Coal impact damage SHPB testing de-noising based on HHT method[J]. Journal of China Coal Society, 2012, 37(11): 1796-1802.
[17] 杨仁树，王茂源，杨阳，等. 充填材料对节理岩石动力学性能影响的模拟试验[J]. 振动与冲击，2016,35（12）：125-131.
YANG Ren-shu, WANG Mao-yuan, YANG Yang, et al. Simulation material experiment on the dynamic mechanical properties of jointed rock affected by joint-filling material[J]. Journal of Vibration and Shock, 2016, 35(12): 125-131.
[18] 王建国，高全臣，陆华，等. 分层介质冲击响应的SHPB实验研究[J]. 振动与冲击，2015，34（9）：192-212.
WANG Jian-guo, GAO Quan-chen, LU Hua, et al. Impact response tests of layered medium with SHPB[J]. Journal of Vibration and Shock, 2015, 34(9): 192-212.
[19] 赵毅鑫，龚爽，黄亚琼．冲击载荷下煤样动态拉伸劈裂能量耗散特征实验[J]．煤炭学报，2015， 40(10)：2320-2326.
Zhao Yixin, Gong Shuang, Huang Yaqiong．Experimental study on energy dissipation characteristics of coal samples under impact loading[J]．Journal of China Coal Society, 2015, 40(10): 2320－2326．
[20] 赵毅鑫，肖汉，黄亚琼. 霍普金森杆冲击加载煤样巴西圆盘劈裂试验研究[J]．煤炭学报，2014， 39(2)：286-291
Zhao Yixin， Xiao Han， Huang Yaqiong． Dynamic split tensile test of Brazilian disc of coal withsplit Hopkinson pressure barloading[J]. Journal of China Coal Society, 2014, 39(2): 286-291．
[21] 李胜林，刘殿书，李祥龙，等.  75 mm分离式霍普金森压杆试件长度效应的实验研究[J]. 中国矿业大学学报，2010，39(1)：93–97.
LI Sheng-lin, LIU Dian-shu, LI Xiang-long, et al. The effect of specimen length in  75 mm split Hopkinson pressure bar experiment. Journal of China University of Mining & Technology, 2010, 39(1): 93-97.
[22] 陶俊林, 陈裕泽, 田常津，等. SHPB系统圆柱形试件的惯性效应分析[J]. 固体力学学报，2005， 26(01)：107-110.
TAO Jun-lin, CHEN Yu-zhe, TIAN Changjin, et al. Analysis of the inertial effect of the cylindrical specimen in SHPB system[J]. Acta Mechanica Solida Sinica, 2005, 26(01): 107-110.
[23] DAVIES E D H，HUNTER S C. The dynamic compression testing of solids by the method of the split Hopkins on pressure bar [J]. Journal of the Mechanics and Physics of Solids，1963，11：155–179.
[24] 冯明德，彭艳菊，刘永强，等. SHPB实验技术研究[J]. 地球物理学进展, 2006, 21(01):273-278.
FENG Ming-de, PENG Yan-ju, LIY Yong-qiang, et al. Study on SHPB technique[J]. Progress in Geophysics, 2006, 21(01): 273-278.
[25] 徐晓炼，张茹，戴峰，等. 煤岩特性对超声波速影响的试验研究[J]. 煤炭学报, 2015, 40(04):793-800.
XU Xiao-lian, ZHANG Ru, DAI Feng, et al. Effect of coal and rock characteristics on ultrasonic velocity[J]. Journal of China Coal Society, 2015, 40(04): 793-800.
[26] 杨阳. 低温作用下岩石动态力学性能实验研究[D]. 中国矿业大学(北京), 2016.
[27] Weinong W. Chen, Bo Song. Split Hopkinson (Kolsky) Bar Design, Testing and Applications [M]. London: Springer Science Business Media, 2011: 7-17.
[28] 宋力, 胡时胜. SHPB数据处理中的二波法与三波法[J]. 爆炸与冲击，2005，25(04)：368-373.
SONG Li, HU Shi-sheng. Two-wave and three-wave method in SHPB data processing[J]. Explosion and Shock Waves, 2005, 25(04): 368-373.
[29] 刘石，许金余，刘军忠，等．绢云母石英片岩和砂岩的SHPB试验研究[J]．岩石力学与工程学报，2011，30( 9) :1864-1871．
LIU Shi, XU JIn-yu, LIU Junzhong, et al. SHPB experimental study of sericite-quartz schist and sandstone[J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(9): 1864-1871.
[30] 解北京, 崔永国, 王金贵. 煤冲击破坏力学特性试验研究[J]. 煤矿安全，2013，44(11):18-21.
XIE Bei-jing, CUI Yong-guo, WANG Jin-gui. Experimental study on mechanics properties of coal impact damage[J].Safety in Coal Mines, 2013, 44(11): 18-21.
[31] 王强，王通，于长滨，等. 用分段式霍普金森压杆对水泥石动态弹性模量和破碎吸收能的实验研究[J]. 地震工程与工振动，2006,26（2）：92-95.
WANG Qiang, WANG Tong, YU Chang-bin, et al. Experimental research on dynamic modulus of elasticity and breaking absorbed energy of cement rock by SHPB[J]. Earthquake Engineering and Engineering Vibration, 2006, 26(2): 92-95.
[32] 郑永来，夏颂佑，周澄. 岩土类材料的动弹性模量机理[J]. 振动与冲击，1997,16（2）：56-61.
ZHENG Yong-lai, XIA song-you, ZHOU Cheng. Mechanism of dynamic elastic modulus of geotechnical materials[J]. Journal of Vibration and Shock, 1997, 16(2): 56-61.