• The Core Journal of China
  • The key magazine of China technology
  • Research Center for Chinese Science Evaluation (RCCSE) (A)
  • High-Quality S&T Journals in Natural Resources (T2)
  • Ranking Directory of High-Quality S&T Journals in Earth Sciences (T2)
  • Chemical Abstracts (CA)
  • Database of Japan Science and Technology Agency (JST)
  • Directory of Open Access Journals (DOAJ)
  • World Journal Clout Index (WJCI) Report of Scientific and Technological Periodicals (Q2)
WAN Liaorong, ZHANG Baojun. Experimental study on dynamic mechanical properties of sandstone under different impact strength[J]. CHINA MINING MAGAZINE, 2020, 29(7): 163-171. DOI: 10.12075/j.issn.1004-4051.2020.07.009
Citation: WAN Liaorong, ZHANG Baojun. Experimental study on dynamic mechanical properties of sandstone under different impact strength[J]. CHINA MINING MAGAZINE, 2020, 29(7): 163-171. DOI: 10.12075/j.issn.1004-4051.2020.07.009

Experimental study on dynamic mechanical properties of sandstone under different impact strength

More Information
  • Received Date: August 05, 2019
  • Available Online: April 19, 2023
  • To reveal the influence of impact strength on dynamic mechanical properties of rock, dynamic failure tests of sandstone under different impact strength are carried out with the modified Hopkinson pressure bar (SHPB) device, and dynamic stress-strain curve and stress waveform are measured.Then, the influence of impact strength on sandstone strength, strain characteristics and energy dissipation are analyzed based on experimental data.The results show that the dynamic stress-strain curve directly enters the elastic deformation stage without a compression stage, and the greater the impact strength, the longer the stress-strain path.The impacted rock samples include fracture and fragmentation, and the degree of fragmentation is positively correlated with the impact strength.Besides, average dynamic compressive strength and average failure strain both increase linearly with increasing impact strength while the average strain rate and impact strength increase in accordance with an exponential function.The larger the impact intensity is, the higher the incident energy and reflection energy are while the transmission energy does not change obviously.The transmission coefficient and reflection coefficient respectively increase in power function and decrease in logarithm, and the absorption energy respectively increase exponential and logarithmic with impact strength and average compressive strength.The conclusions show that different impact strength has a significant influence on strain characteristics, strength characteristics and energy dissipation of sandstone.
  • [1]
    SHIN J H, GMOON H, CHAE S E.Effect of blast-induced vibration on existing tunnels in soft rocks[J].Tunnelling and Underground Space Technology, 2011, 26(1):51-61.
    [2]
    SONG Z P, YANG T T, JIANG A N, et al.Experimental investigation and numerical simulation of surrounding rock creep for deep mining tunnels[J].Journal of the Southern African Institute of Mining and Metallurgy, 2016, 116(12):1181-1188.
    [3]
    程昀, 张金团, 韩晶晶, 等.不同应力路径岩石能量耗散研究现状及分析[J].中国矿业, 2018, 27(1):148-153, 159.

    CHENG Yun, ZHANG Jintuan, HAN Jingjing, et al.Research status of energy dissipation of rock under different stress paths and analysis[J].China Mining Magazine, 2018, 27(1):148-153, 159.
    [4]
    宋战平, 李世豪, 张学钢, 等.基于修正Peck法的隧道施工全地层变形规律研究[J].西安建筑科技大学学报(自然科学版), 2018, 50(2):190-195.

    SONG Zhanping, LI Shihao, ZHANG Xuegang, et al.Study on strata settlement regular pattern induced by tunnel construction based on Peck formula[J].Journal of Xi’an University of Architecture and Technology (Natural Science Edition), 2018, 50(2):190-195.
    [5]
    林海, 赵志伟, 康一强, 等.深部倾斜岩层巷道变形分析与控制[J].中国矿业, 2019, 28(7):104-109.

    LIN Hai, ZHAO Zhiwei, KANG Yiqiang, et al.Analysis and control of roadway deformation in deep high ground stress inclined rock seam[J].China Mining Magazine, 2019, 28(7):104-109.
    [6]
    李夕兵, 周子龙, 叶州元, 等.岩石动静组合加载力学特性研究[J].岩石力学与工程学报, 2008, 27(7):1387-1395.

    LI Xibing ZHOU Zilong YE Zhouyuan, et al.Study of rock mechanical characteristics coupled static and dynamic loads[J].Journal of Rock Mechanics and Engineering, 2008, 27(7):1387-1395.
    [7]
    金解放, 程昀, 昌晓旭, 等.轴向静载对红砂岩中应力波传播特性的影响试验研究[J].岩石力学与工程学报, 2017, 36(8):1939-1950.

    JIN Jiefang, CHENG Yun, CHANG Xiaoxu, et al.Experimental study on stress wave propagation characteristics in red sandstone under axial static stress[J].Journal of Rock Mechanics and Engineering, 2017, 36(8):1939-1950.
    [8]
    杜坤, 李夕兵, 董陇军, 等.复杂预应力路径和异源动力扰动下岩石破裂机制研究[J].岩石力学与工程学报, 2015, 34(S2):4047-4053.

    DU Kun, LI Xibing, DONG Longjun, et al.Fracture mechanism of rock induced by ture-triaxial unloading and heterology dynamic distubance[J].Journal of Rock Mechanics and Engineering, 2015, 34(S2):4047-4053.
    [9]
    殷志强, 李夕兵, 董陇军, 等.动静组合加载条件岩爆特性及倾向性指标[J].中南大学学报(自然科学版), 2014, 45(9):3249-3256.

    YIN Zhiqiang, LI Xibing, DONG Longjun, et al.Rockburst characteristics and proneness index under coupled static and dynamic loads[J].Journal of Central South University(Science and Technology), 2014, 45(9):3249-3256.
    [10]
    SAINOKIATSUSHI, MITRIHANI S.Numerical simulation of rock mass vibrations induced by nearby product[J].Canadian Geotechnical Journal, 2014, 51(11):1-10.
    [11]
    FRIEDMAN M, PERKINS R D, GREEN S J.Observation of brittle- deformation features at maximum stress of westerly granite and solenhofen limestone[J].International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts, 1970, 7(3):297-302.
    [12]
    JANACH W.The role of bulking in brittle failure of rock under rapid compression[J].International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts, 1976, 13(6):177-186.
    [13]
    宫凤强, 李夕兵, 饶秋华, 等.岩石SHPB试验中确定试样尺寸的参考方法[J].振动与冲击, 2013, 32(17):24-28.

    GONG Fengqiang, LI Xibing, RAO Qiuhua, et al.Reference method for determining sample size in SHPB tests of rock materials[J].Journal of Vibration and Shock, 2013, 32(17):24-28.
    [14]
    LI X B, ZHOU Z L, LOK T S, et al.Innovative testing technique of rock subjected to coupled static and dynamic loads[J].International Journal of Rock Mechanics and Mining Sciences, 2008, 45(5):739-748.
    [15]
    李夕兵, 周子龙, 叶州元, 等.岩石动静组合加载力学特性研究[J].岩石力学与工程学报, 2008, 27(7):1387-1395.

    LI Xibing, ZHOU Zilong, YE Zhouyuan, et al.Study of rock mechanical characteristics under coupled static and dynamic loads[J].Chinese Journal of Rock Mechanics and Engineering, 2008, 27(7):1387-1395.
    [16]
    谢和平, 彭瑞东, 鞠杨.岩石变形破坏过程中的能量耗散分析[J].岩石力学与工程学报, 2004, 23(21):3565-3570.

    XIE Heping, PENG Ruidong, JU Yang.Energy dissipation of rock deformation and fracture[J].Chinese Journal of Rock Mechanics and Engineering, 2004, 23(21):3565-3570.
    [17]
    平琦, 马芹永, 袁璞.岩石试件SHPB劈裂拉伸试验中能量耗散分析[J].采矿与安全工程学报, 2013, 30(3):401-407.

    PING Qi, MA Qinyong, YUAN Pu.Energy dissipation analysis of stone specimens in SHPB tensile test[J].Journal of Mining and Safety Engineering, 2013, 30(3):401-407.
    [18]
    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 Liyun, XU Zhiqiang, XIE Heping, 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.
    [19]
    陈旭光, 张强勇.岩石剪切破坏过程的能量耗散和释放研究[J].采矿与安全工程学报, 2012, 27(2):179-184.

    CHEN Xuguang, ZHANG Qiangyong.Research on the energy dissipation and release in the process of rock shear failure[J].Journal of Mining and Safety Engineering, 2012, 27(2):179-184.
    [20]
    朱晶晶, 李夕兵, 宫凤强, 等.冲击载荷作用下砂岩的动力学特性及损伤规律[J].中南大学学报(自然科学版), 2012, 43(7):2701-2707.

    ZHU Jingjing, LI Xibing, GONG Fengqiang, et al.Experimental test and damage characteristics of sandstone under uniaxial impact compressive loads[J].Journal of Central South University(Science and Technology), 2012, 43(7):2701-2707.
    [21]
    谢晓锋, 陶明, 吴秋红, 等.不同形状砂岩的动态力学特性[J].中南大学学报(自然科学版), 2017, 48(9):2441-2448.

    XIE Xiaofeng, TAO Ming WU Qiuhong, et al.Dynamic properties of sandstones with different shapes[J].Journal of Central South University(Science and Technology), 2017, 48(9):2441-2448.
    [22]
    王登科, 刘淑敏, 魏建平, 等.冲击载荷作用下煤的破坏特性试验研究[J].采矿与安全工程学报, 2017, 34(3):594-600.

    WANG Dengke, LIU Shumin, WEI Jianping, et al.The failure characteristics of coal under impact load in laboratory[J].Journal of Mining and Safety Engineering, 2017, 34(3):594-600.
    [23]
    金解放, 李夕兵, 常军然, 等.循环冲击作用下岩石应力应变曲线及应力波特性[J].爆炸与冲击, 2013, 33(6):613-619.

    JIN Jiefang, LI Xibing, CHANG Junran, et al.Stress-strain curve and stress wave characteristics of rock subjected to cyclic impact loadings[J].Journal of Vibration and Shock, 2013, 33(6):613-619.
    [24]
    ZHANG Q B, ZHAO J.A review of dynamic experimental techniques and mechanical behavior of rock materials[J].Rock Mechanics and Rock Engineering, 2014, 47(4):1411-1478.
    [25]
    HILD F, ROUX S.Digital image correlation:from displacement measurement to identification of elastic properties:a review[J].Strain, 2006, 42(2):69-80.

Catalog

    Article views (261) PDF downloads (14) Cited by()

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return