|
|
|
| SHPB experimental study on dynamic characteristics and failure behaviors of sandstone containing weakly filled joints with various angles in deep roadways#br# |
| MA Qinyong1，2，3，SU Qingqing1，2，3，MA Dongdong1，2，3，YUAN Pu1，2，3#br# |
| (1. State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mine，Anhui University of Science and Technology，Huainan，Anhui 232001，China；2. Engineering Research Center of Underground Mine Construction，Ministry of Education，Anhui University of Science and Technology，Huainan，Anhui 232001，China；3. School of Civil Engineering and Architecture，Anhui University of Science and Technology，Huainan，Anhui 232001，China) |
|
|
|
Abstract In order to investigate the mechanical properties and dynamic failure law of sandstone specimens containing weakly filled joints with various angles in deep roadways under impact loads，the impact tests of sandstone specimens containing 7 kinds of joint angles were carried out by utilizing split Hopkinson pressure bar(SHPB) with diameter of 50 mm. The crack propagation and dynamic failure processes were captured in real time with the help of a high-speed camera. The results indicated that the dynamic compressive strength and peak strain of jointed sandstone decrease first and then increase with increasing the joint angle. Moreover，the plasticity of jointed specimens decreases while brittleness increases with mounting the joint angle. The stress-time curves of specimens containing joint angles of 0°，15° and 30° perform obvious plastic platform section，which is contrary to the specimens containing joint angles of 45°，60°，75° and 90°. The stress-time curve of specimens containing joint angle of 45° shows an obvious“double peak”phenomenon. Furthermore，the joint angle controls the final failure mode of jointed specimens and the failure sequence of joint and rock matrix. The final failure mode of jointed specimens could be divided into three types，i.e.，split tensile failure，combined tensile-shear failure and shear failure. With increasing the joint angle，the failure sequence gradually changes from filled weak joint failure first to rock matrix failure first.
|
|
|
|
|
|
[1] 冯夏庭，肖亚勋，丰光亮，等. 岩爆孕育过程研究[J]. 岩石力学与工程学报，2019，38(4)：649–673.(FENG Xiating，XIAO Yaxun，FENG Guangliang，et al. Study on the development process of rock bursts[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(4)：649–673.(in Chinese))
[2] 谢和平，高峰，鞠杨，等. 深部开采的定量界定与分析[J]. 煤炭学报，2015，40(1)：1–10.(XIE Heping，GAO Feng， JU Yang，et al. Quantitative definition and investigation of deep mining[J].Journal of China Coal Society，2015，40(1)：1–10.(in Chinese))
[3] 王成虎，高桂云，杨树新，等. 基于中国西部构造应力分区的川藏铁路沿线地应力的状态分析与预估[J]. 岩石力学与工程学报，2019，38(11)：2 242–2 253.(WANG Chenghu，GAO Guiyun，YANG Shuxin，et al. Analysis and prediction of stress fields of Sichuan-Tibet railway area based on contemporary tectonic stress field zoning in Western China[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(11)：2 242–2 253.(in Chinese))
[4] 蔡美峰，何满朝，刘东燕. 岩石力学与工程[M]. 北京：科学出版社，2013：120–125.( CAI Meifeng，HE Manchao，LIU Dongyan. Rock mechanics and Engineering [M]. Beijing：Science Press，2013：120–125.(in Chinese))
[5] 李夕兵，宫凤强，王少峰，等. 深部硬岩矿山岩爆的动静组合加载力学机制与动力判据[J]. 岩石力学与工程学报，2019，38(4)：708–723.(LI Xibing，GONG Fengqiang，WANG Shaofeng，et al. Coupled static-dynamic loading mechanical mechanism and dynamic criterion of rock burst in deep hard rock mines[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(4)：708–723.(in Chinese))
[6] 刘红岩，张力民，苏天明，等. 节理岩体损伤本构模型及工程应用[M]. 北京：冶金工业出版社，2016：39–44.(LIU Hongoyan，ZHANG Limin，SU Tianming. Damage constitutive model of jointed rock mass and its engineering application[M]. Beijing：Metallurgical Industry Press，2016：39–44.(in Chinese))
[7] 张国凯，李海波，王明洋，等. 单裂隙花岗岩破坏强度及裂纹扩展特征研究[J]. 岩石力学与工程学报，2019，38(增1)：2 760–2 771. (ZHANG Guokai，LI Haibo，WANG Mingyang，et al. Study on characteristics of failure strength and crack propagation of granite rocks containing a single fissure[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(Supp.1)：2 760–2 771.(in Chinese))
[8] 杨圣奇，戴永浩，韩立军，等. 断续预制裂隙脆性大理岩变形破坏特性单轴压缩试验研究[J]. 岩石力学与工程报，2009，28(12)：2 391–2 404.(YANG Shengqi，DAI Yonghao，HAN Lijun，et al. Uniaxial compression experimental research on deformation and failure properties of brittle marble specimen with pre-existing fissures[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(12)：2 391–2 404.(in Chinese))
[9] 杨圣奇，温 森，李良权. 不同围压下断续预制裂纹粗晶大理岩变形和强度特性的试验研究[J]. 岩石力学与工程学报，2007，26(8)：1 572–1 587.(YANG Shengqi，WEN Sen，LI Liangquan. Experimental study on deformation and strength properties of coarse marble with discontinuous pre-existing cracks under different confining pressures[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(8)：1 572–1 587.(in Chinese))
[10] 黄彦华，杨圣奇. 含两组交叉节理砂岩强度及破坏特征离散元分析[J]. 煤炭学报，2015，40(增1)：76–84.(HUANG Yanhua，YANG Shengqi. Discrete element study on strength and failure behavior of jointed sandstone with two sets of cross-joints[J]. Journal of China Coal Society，2015，40(Supp.1)：76–84.(in Chinese))
[11] 陈 新，廖志红，李德建. 节理倾角及连通率对岩体强度、变形影响的单轴压缩试验研究[J]. 岩石力学与工程学报，2011，30(4)：781–789.(CHEN Xin，LIAO Zhihong，LI Jiande. Experimental study of effects of joint inclination angle and connectivity rate on strength and deformation properties of rock masses under uniaxial compression[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(4)：781–789.(in Chinese))
[12] GONG F Q，SI X F，LI X B，et al. Dynamic triaxial compression tests on sandstone at high strain rates and low confining pressures with split Hopkinson pressure bar[J]. International Journal of Rock Mechanics and Mining Science，2019，113：211–219.
[13] LIU R F，ZHU Z M，LI Y X，et al. Study of rock dynamic fracture toughness and crack propagation parameters of four brittle materials under blasting[J]. Engineering Fracture Mechanics，2019，http://doi.org/10.1016/j.engfracmech.
[14] GONG F Q，ZHAO G F. Dynamic indirect tensile strength of sandstone under different loading rates[J]. Rock Mechanics and Rock Engineering，2014，47：2 271–2 278.
[15] ZHAO Y X， ZHAO G F，JIANG Y D，et al. Effects of bedding on the dynamic indirect tensile strength of coal：Laboratory experiments and numerical simulation[J]. International Journal of Coal Geology，2014，132：81–93.
[16] 平 琦，吴明静，袁 璞，等. 冲击荷载作用下高温砂岩动态力学性能试验研究[J]. 岩石力学与工程学报，2019，38(4)：782–792.(PING Qi，WU Mingjing，YUAN Pu，et al. Experimental study on dynamic mechanical properties of high temperature sandstone under impact loads[J]. Chinese Journal of Rock mechanics and Engineering，2019，38(4)：782–792. (in Chinese))
[17] 宫凤强，王 进，李夕兵，等. 岩石压缩特性的率效应与动态增强因子统一模型[J]. 岩石力学与工程学报，2018，37(7)：1 586–1 595. (GONG Fengqiang，WANG Jin，LI Xibin. The rate effect of compression characteristics and a unified model of dynamic increasing factor for rock materials[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(7)：1 586–1 595. (in Chinese))
[18] 刘红岩. 考虑T应力的岩石压剪裂纹起裂机理[J]. 岩土工程学报，2019，41(7)：1 296–1 302.(LIU Hongyan. Initiation mechanism of cracks of rock in compression and shear considering T-stress [J]. Chinese Journal of Geotechnical Engineering ，2019，41(7)：1 296–1 302. (in Chinese))
[19] ZOU C J，WONG L N Y，JIN J L，et al. Different mechanical and cracking behaviors of single-flawed brittle gypsum specimens under dynamic and quasi-static loadings[J]. Engineering Geology，2016，201(4)：71–84.
[20] ZHOU L，ZHU Z M，DONG Y Q，et al. Study of the fracture behavior of mode I and mixed mode I/II cracks in tunnel under impact loads[J]. Tunneling and Underground Space Technology，2019，84：11–21.
[21] 李地元，刘 濛，韩震宇，等. 含孔洞层状砂岩动态压缩力学特性试验研究[J]. 煤炭学报，2019，44(5)：1 349–1 358. (LI Diyuan，LIU Meng，HAN Zhenyu，et al. Dynamic compressive mechanical properties of bedding sandstone with preexisting hole[J]. Journal of China Coal Society，2019，44(5)：1 349–1 358.(in Chinese))
[22] LI D Y，WONG L N Y，LIU G，et al. Influence of water content and anisotropy on the strength and deformability of low porosity meta-sedimentary rocks under triaxial compression[J]. Engineering Geology，2012，126：46–66.
[23] QIU J D，LI D Y，LI X B，et al. Dynamic fracturing behavior of layered rock with different inclination angles in SHPB tests[J]. Shock and Vibration，2017，2017：1–12.
[24] LI J C，LI N N，LI H B，et al. An SHPB test study on wave propagation across rock masses with different contact area ratios of joint[J]. International Journal of Impact Engineering，2017，105： 109–116.
[25] LI J C，MA G W. Analysis of blast wave interaction with a rock joint[J]. Rock Mechanics and Rock Engineering，2010，43(6)：777–787.
[26] LI J C，RONG L F，LI H B，et al. An SHPB test study on stress wave energy attenuation in jointed rock masses[J]. Rock Mechanics and Rock Engineering，2019，52：403–420.
[27] 赵安平，冯 春，郭汝坤，等. 节理特性对应力波传播及爆破效果的影响规律研究[J]. 岩石力学与工程学报，2018，37(9)：2 027– 2 036.( ZHAO Anping，FENG Chun，GUO Rukun，et al. Effect of joints on blasting and stress wave propagation[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(9)：2 027–2 036.(in Chinese))
[28] LI J C，LI H B，JIAO Y Y，et al. Analysis for oblique wave propagation across filled joints based on thin-layer interface model[J]. Journal of Applied Geophysics，2014，102：39–46.
[29] 宋彦琦，李向上，刘济琛，等. 节理充填物厚度对运动裂纹扩展的影响[J]. 爆炸与冲击，2019，DOI：10.11883/bzycj-2019-0358. (SONG Yanqi，LI Xiangshang，LI Jichen，et al. Influence of joint filler thickness on the propagation of moving cracks[J]. Explosion and Shock Waves，2019，DOI:10.11883/bzycj-2019-0358.(in Chinese))
[30] WANG R，HU Z P，ZHANG D， et al. Propagation of the stress wave through the tilled joint with linear viscoelastic Deformation behavior using time-domain recursive method[J]. Rock Mechanics and Rock Engineering，2017，50：3 197–3 207.
[31] SWAN G，COOK J，BRUCE S，et al. Strain rate effects in Kimmeridge bay shale[J]. International Journal of Rock Mechanics and Mining Sciences，1989，26(2)：135–149.
[32] 左建平，谢和平，周宏伟，等. 温度–拉应力共同作用下砂岩破坏的断口形貌[J]. 岩石力学与工程学报，2007，26(12)：2 444–2 457. (ZUO Jianping，XIE Heping，ZHOU Hongwei，et al. Fractography of sandstone failure under temperature-tensile stress coupling effects[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(12)：2 444–2 457.(in Chinese))
[33] ZHOU Y X，XIA K W，LI X B，et al. Suggested methods for determining the dynamic strength parameters and mode-I fracture toughness of rock materials[J]. International Journal of Rock Mechanics and Mining Sciences，2012，49(1)：105–112.
[34] 孙旭曙，李建林，王乐华，等. 节理岩体超声测试及单轴压缩试验研究[J]. 岩土力学，2016，35(12)：3 473–3 478.(SUN Xushu，LI Jianlin，WANG Lehua，et al. Study of ultrasonic test and uniaxial compression test of jointed rock masses[J]. Rock and Soil Mechanics，2016，35(12)：3 473–3 478.(in Chinese))
[35] 李地元，韩震宇，孙小磊，等. 含预制裂隙大理岩SHPB 动态力学破坏特性试验研究[J]. 岩石力学与工程学报，2017，36(12)：2 872–2 883.(LI Diyuan，HAN Zhenyu，SUN Xiaolei，et al. Characteristics of dynamic failure of marble with artificial flaws under split Hopkinson pressure bar tests[J]. Chinese Journal of Rock Mechanics and Engineering，2017，36(12)：2 872–2 883.(in Chinese))
[36] LI D Y，HAN Z Y，ZHU Q Q，et al. Stress wave propagation and dynamic behavior of red sandstone with single bonded planar joint at various angles[J]. International Journal of Rock Mechanics and Mining Science，2019，117：162–170.
[37] 杨仁树，李炜煜，方士正，等. 层状复合岩体冲击动力学特性试验研究[J]. 岩石力学与工程学报，2019，38(9)：1 747–1 757.(YANG Renshu，LI Weiyu，FANG Shizheng，et al. Experimental study on impact dynamic characteristics of layered composite rocks[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(9)：1 747–1 757. (in Chinese))
[38] LI D Y，HAN Z Y，SUN X L，et al. Dynamic mechanical properties and fracturing behavior of marble specimens containing single and double flaws in SHPB tests[J]. Rock Mechanics and Rock Engineering，2018，https:/ /doi.org/10.1007/s00603-018-1652-5.
[39] 许 鹏，杨仁树，鞠 杨，等. 含倾斜弱面介质中动态裂纹扩展行为研究[J]. 岩土工程学报，2019，41(9)：1 645–1 652. (XU Peng，Yang Renshu，JU Yang. Experimental study on influences of inclined weak interface on the dynamic crack propagation behavior [J]. Chinese Journal of Geotechnical Engineering， 2019，41(9)：1 645–1 652.(in Chinese))
[40] 王兴渝，朱哲明，邱 豪，等. 冲击荷载下层理对页岩内裂纹扩展行为影响规律的研究[J]. 岩石力学与工程学报，2019，38(8)：1 542–1 556.(WANG Xingyu，ZHU Zheming，QIU Hao，et al. Study of the effect of stratifications on crack propagation behaviors in shale under impacting loads[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(8)：1 542–1 556.(in Chinese))
[41] 付安琪，蔚立元，苏海健，等. 循环冲击损伤后大理岩静态断裂力学特性研究[J]. 岩石力学与工程学报，2019，38(10)：2 021–2 030. (FU Anqi，YU Liyuna，SU Haijian，et al. Experimental study on static fracturing mechanical characteristics of marble after cyclic impact loading[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(10)：2 021–2 030. (in Chinese))
[42] 孙广忠. 岩体结构力学[M]. 北京：科学出版社，1988：216–221.(SUN Guangzhong. Structure mechanics of rock mass[M]. Beijing：Science Press，1988：216–221.(in Chinese)) |
|
|
|
2020, Vol. 39 
