留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码
Volume 26 Issue 4
Apr.  2019
Turn off MathJax
目录
数据统计

分享

计量
  • 文章访问数:  818
  • HTML全文浏览量:  164
  • PDF下载量:  40
  • 被引次数: 0
文章导航 >  矿物冶金与材料学报（英文）  > 2019  >  26(4): 404-416
Yu-ye Tan, Xin Yu, Davide Elmo, Lin-hui Xu,  and Wei-dong Song, Experimental study on dynamic mechanical property of cemented tailings backfill under SHPB impact loading, Int. J. Miner. Metall. Mater., 26(2019), No. 4, pp. 404-416. https://doi.org/10.1007/s12613-019-1749-1
Cite this article as:
Yu-ye Tan, Xin Yu, Davide Elmo, Lin-hui Xu,  and Wei-dong Song, Experimental study on dynamic mechanical property of cemented tailings backfill under SHPB impact loading, Int. J. Miner. Metall. Mater., 26(2019), No. 4, pp. 404-416. https://doi.org/10.1007/s12613-019-1749-1
shu
引用本文 PDF XML SpringerLink
研究论文

Experimental study on dynamic mechanical property of cemented tailings backfill under SHPB impact loading

  • Key Laboratory of High-Efficient Mining and Safety of Metal Mines (Ministry of Education of China), University of Science and Technology Beijing, Beijing 100083, China

  • School of Civil and Resources Engineering, University of Science and Technology Beijing, Beijing 100083, China

  • Norman B. Keevil Institute of Mining Engineering, Applied Science School, University of British Columbia, Vancouver V6T 1Z4, BC Canada

  • 通讯作者:

    Davide Elmo    E-mail: delmo@mail.ubc.ca

  • Cemented tailings backfill (CTB) have increasingly been used in recent years to improve the stability of mining stopes in deep underground mines. Deep mining processes are often associated with rock bursting and high-speed dynamic loading conditions. Therefore, it is important to investigate the characteristics and dynamic mechanical behavior of CTB. This paper presents the results of dynamic tests on CTB specimens with different cement and solid contents using a split Hopkinson pressure bar (SHPB). The results showed that some CTB specimens exhibited one to two lower stress peaks after reaching dynamic peak stress before they completely failed. The greater the cement-to-tailings ratio is, the more obvious the strain reaction. This property mainly manifested as follows. First, the dynamic peak stress increased with the increase of the cement-to-tailings ratio when the impact velocity was fixed. Second, the dynamic peak stress had a quadratic relationship with the average stress rate. Third, the cement-to-tailings ratio could enhance the increase rate of dynamic peak stress with strain rate. In addition, the dynamic strength enhancement factor K increased with the increase of strain rate, and its value was larger than that of the rock samples. The failure modes of CTB specimens under low-speed impact were tensile failure and X conjugate shear failure, where were nearly the same as those under static uniaxial and triaxial compression. The CTB specimens were crushed and broken under critical strain, a failure mode similar to that of low-strength concrete. The results of the experimental research can improve the understanding of the dynamic mechanical properties of CTB and guide the strength design of deep mining backfills.
    • Research Article

    Experimental study on dynamic mechanical property of cemented tailings backfill under SHPB impact loading

    + Author Affiliations
      Abstract
    • Cemented tailings backfill (CTB) have increasingly been used in recent years to improve the stability of mining stopes in deep underground mines. Deep mining processes are often associated with rock bursting and high-speed dynamic loading conditions. Therefore, it is important to investigate the characteristics and dynamic mechanical behavior of CTB. This paper presents the results of dynamic tests on CTB specimens with different cement and solid contents using a split Hopkinson pressure bar (SHPB). The results showed that some CTB specimens exhibited one to two lower stress peaks after reaching dynamic peak stress before they completely failed. The greater the cement-to-tailings ratio is, the more obvious the strain reaction. This property mainly manifested as follows. First, the dynamic peak stress increased with the increase of the cement-to-tailings ratio when the impact velocity was fixed. Second, the dynamic peak stress had a quadratic relationship with the average stress rate. Third, the cement-to-tailings ratio could enhance the increase rate of dynamic peak stress with strain rate. In addition, the dynamic strength enhancement factor K increased with the increase of strain rate, and its value was larger than that of the rock samples. The failure modes of CTB specimens under low-speed impact were tensile failure and X conjugate shear failure, where were nearly the same as those under static uniaxial and triaxial compression. The CTB specimens were crushed and broken under critical strain, a failure mode similar to that of low-strength concrete. The results of the experimental research can improve the understanding of the dynamic mechanical properties of CTB and guide the strength design of deep mining backfills.
      • FullText(HTML)
    • loading
      • Supplements(0)
      • References(47)
    • [1]
      M.C. He, H.P. Xie, S.P. Peng, and Y.D. Jiang, Study on rock mechanics in deep mining engineering, Chin. J. Rock Mech. Eng., 24(2005), No. 16, p. 2803.
      [2]
      F.P. Hassani, A. Mortazavi, and M. Shabani, An investigation of mechanisms involved in backfill-rock mass behavior in narrow vein mining, J. South Afr. Inst. Min. Metall., 108(2008), No. 8, p. 463.
      [3]
      R. Rankine, M. Pacheco, and N. Sivakugan, Underground mining with backfills, Soils Rocks, 30(2007), No. 2, p. 93.
      [4]
      P. Li, M.F. Cai, Q.F. Guo, and S.J. Miao, Characteristics and implications of stress state in a gold mine in Ludong area, China, Int. J. Miner. Metall. Mater., 25(2018), No. 12, p. 1363.
      [5]
      M. Benzaazoua, B. Bussière, I. Demers, M. Aubertin,É. Fried, and A. Blier, Integrated mine tailings management by combining environmental desulphurization and cemented paste backfill:Application to mine Doyon, Quebec, Canada, Miner. Eng., 21(2008), No. 4, p. 330.
      [6]
      M. Fall and M. Pokharel, Coupled effects of sulphate and temperature on the strength development of cemented tailings backfills:Portland cement-paste backfill, Cem. Concr. Compos., 32(2010), No. 10, p. 819.
      [7]
      N. Sivakugan, R.M. Rankine, K.J. Rankine, and K.S. Rankine, Geotechnical considerations in mine backfilling in Australia, J. Cleaner Prod., 14(2006), No. 12-13, p. 1168.
      [8]
      L. Yang, J.P. Qiu, H.Q. Jiang, S.Q. Hu, H. Li, and S.B. Li, Use of cemented super-fine uncoarse tailings backfill for control of subsidence, Minerals, 7(2017), No. 11, p. 216.
      [9]
      Z.X. Liu, W.G. Dang, and X.Q. He, Undersea safety mining of the large gold deposit in Xinli District of Sanshandao Gold Mine, Int. J. Miner. Metall. Mater., 19(2012), No. 7, p. 574.
      [10]
      S. Ouellet, B. Bussière, M. Aubertin, and M. Benzaazoua, Microstructural evolution of cemented paste backfill:Mercury intrusion porosimetry test results, Cem. Concr. Compos., 37(2007), No. 12, p. 1654.
      [11]
      E. Yilmaz, T. Belem, and M. Benzaazoua, Specimen size effect on strength behavior of cemented paste backfills subjected to different placement conditions, Eng. Geol., 185(2015), p. 52.
      [12]
      V.F.N. Torres, C.D. da Gama, M.C. e Silva, P.F. Neves, and Q. Xie, Comparative stability analyses of traditional and selective room-and-pillar mining techniques for sub-horizontal tungsten veins, Int. J. Miner. Metall. Mater., 18(2011), No. 1, p. 1.
      [13]
      J.X. Zhang, B.Y. Li, N. Zhou, and Q. Zhang, Application of solid backfilling to reduce hard-roof caving and longwall coal face burst potential, Int. J. Rock Mech. Min. Sci., 88(2016), p. 197.
      [14]
      D.Q. Deng, L. Liu, Z.L. Yao, K.I.I.L. Song, and D.Z. Lao, A practice of ultra-fine tailings disposal as filling material in a gold mine, J. Environ. Manage., 196(2017), p. 100.
      [15]
      X. Ke, H.B. Hou, M. Zhou, Y. Wang, and X. Zhou, Effect of particle gradation on properties of fresh and hardened cemented paste backfill, Constr. Build. Mater., 96(2015), p. 378.
      [16]
      A. Khoshand and M. Fall, Geotechnical characterization of peat-based landfill cover materials, J. Rock Mech. Geotech. Eng., 8(2016), No. 5, p. 596.
      [17]
      M. Li, J.X. Zhang, N. Zhou, and Y.L. Huang, Effect of particle size on the energy evolution of crushed waste rock in coal mines, Rock Mech. Rock Eng., 50(2017), No. 5, p. 1347.
      [18]
      L. Cui and M. Fall, Mechanical and thermal properties of cemented tailings materials at early ages:Influence of initial temperature, curing stress and drainage conditions, Constr. Build. Mater., 125(2016), p. 553.
      [19]
      B. Ercikdi, A. Kesimal, F. Cihangir, H. Deveci, andİ. Alp, Cemented paste backfill of sulphide-rich tailings:Importance of binder type and dosage, Cem. Concr. Compos., 31(2009), No. 4, p. 268.
      [20]
      C. Liu, B. Han, W. Sun, J.X. Wu, S. Yao, and H.Y. Hu, Experimental study of strength of backfilling of cemented rock debris and its application under low temperature condition, Chin. J. Rock Mech. Eng., 34(2015), No. 1, p. 139.
      [21]
      D.R. Tesarik, J.B. Seymour, and T.R. Yanske, Long-term stability of a backfilled room-and-pillar test section at the Buick Mine, Missouri, USA, Int. J. Rock Mech. Min. Sci., 46(2009), No. 7, p. 1182.
      [22]
      J.S. Chen, B. Zhao, X.M. Wang, Q.L. Zhang, and L. Wang, Cemented backfilling performance of yellow phosphorus slag, Int. J. Miner. Metall. Mater., 17(2010), No. 1, p. 121.
      [23]
      R.J. Marsal, Mechanical Properties of Rockfill Embankment Dam Engineering, John Wiley Sons Inc., New York, 1973, p. 109.
      [24]
      M. Fall, M. Benzaazoua, and S. Ouellet, Experimental characterization of the influence of tailings fineness and density on the quality of cemented paste backfill, Miner. Eng., 18(2005), No. 1, p. 41.
      [25]
      A. Kesimal, E. Yilmaz, B. Ercikdi,İ. Alp, M. Yumlu, and B. Ozdemir, Laboratory testing of cemented paste backfill, Madencilik, 41(2002), No. 4, p. 11.
      [26]
      G.Y. Zhao, H. Wu, Y. Chen, Z.W. Xu, Z.Y. Li, and E.J. Wang, Experimental study on load-bearing mechanism and compaction characteristics of mine filling materials, J. China Univ. Min. Technol., 46(2017), No. 6, p. 1251.
      [27]
      W.B. Xu, W.D. Song, D.X. Wang, B.G. Yang, and W.D. Pan, Energy dissipation properties of cement backfill body under triaxle compression conditions, J. China Univ. Min. Technol., 43(2014), No. 5, p. 808.
      [28]
      W.B. Xu, P.W. Cao, and M.M. Tian, Strength development and microstructure evolution of cemented tailings backfill containing different binder types and contents, Minerals, 8(2018), No. 4, p. 167.
      [29]
      W.B. Xu, X.C. Tian, and P.W. Cao, Assessment of hydration process and mechanical properties of cemented paste backfill by electrical resistivity measurement, Nondestr. Test. Eval., 33(2018), No. 2, p. 198.
      [30]
      W.B. Xu and P.W. Cao, Fracture behaviour of cemented tailing backfill with pre-existing crack and thermal treatment under three-point bending loading:Experimental study and particle flow code simulation, Eng. Fract. Mech., 195(2018), p. 129.
      [31]
      W.B. Xu, X.C. Tian, and C.B. Wan, Prediction of mechanical performance of cemented paste backfill by the electricity resistivity measurement, J. Test. Eval., 46(2018), No. 6, p. 2450.
      [32]
      W.B. Xu, Y.B. Hou, W.D. Song, Y.P. Zhou, and T.J. Yin, Resistivity and thermal infrared precursors associated with cemented backfill mass, J. Cent. South Univ., 23(2016), No. 9, p. 2329.
      [33]
      E. Yilmaz, A. Kesimal, and B. Ercikdi, Evaluation of acid producing sulphidic mine tailings as a paste backfill, Turk. J. Earth Sci. Rev., 17(2004), No. S1, p. 11.
      [34]
      E. Yilmaz, T. Belem, M. Benzaazoua, A. Kesimal, and B. Ercikdi, Evaluation of the strength properties of deslimed tailings paste backfill, Miner. Resour. Eng., 12(2007), No. 2, p. 129.
      [35]
      E. Yilmaz, Investigating the Hydro-geotechnical and Microstructural Properties of Cemented Paste Backfills Using the Versatile Cuaps Apparatus [Dissertation], Université du Québec en Abitibi-Témiscamingue (UQAT), Quebec City, 2010, p. 1.
      [36]
      L. Dong, Q. Gao, S.Q. Nan, and J.Q. Du, Performance and hydration mechanism of new super fine cemented whole-tailings backfilling materials, J. Cent. South Univ. Sci. Technol., 44(2013), No. 4, p. 1571.
      [37]
      J. Dai, Dynamic Behaviors and Blasting Theory of Rock, Metallurgical Industry Press, Beijing, 2002, p. 60.
      [38]
      J.X. Fu, C.F. Du, and W.D. Song, Strength sensitivity and failure mechanism of full tailings cemented backfills, J. Univ. Sci. Technol. Beijing, 36(2014), No. 9, p. 1149.
      [39]
      Z.X. Liu and X.B. Li, Research on stability of high-level backfill in blasting, Min. Metall. Eng. 24(2004), No. 3, p. 21.
      [40]
      N. Li, K.P. Zhou, D. Pan, and H.L. Zhu, Study on intensity response of rubble backfill to dynamic loading of medium-length hole blasting, Min. Metall. Eng., 31(2011), No. 4, p. 9.
      [41]
      Q.L. Zhang, W. Yang, S. Yang, and M.X. Wang, Test research on stability of high-density total tailing cemented backfilling under dynamic loading, China Saf. Sci. J., 25(2015), No. 3, p. 78.
      [42]
      J.H. Sun, Y.M. Dou, J. Zhou, and B. Li, Experimental study of the effect of strain rate on compressive property of concrete, China Concr. Cem. Prod., 2011, No. 5, p. 1.
      [43]
      R.J. Chen, H.W. Liu, and R. Zeng, SHPB dynamic experiment on silica fume concrete, Adv. Mater. Res., 631(2013), p. 771.
      [44]
      C.E. Fairhurst and J.A. Hudson, Draft ISRM suggested method for the complete stress-strain curve for intact rock in uniaxial compression, Int. J. Rock Mech. Min. Sci., 36(1999), No. 3, p. 279.
      [45]
      J.Y. Xu, J.S. Fan, and X.C. Lu, Dynamic Mechanical Properties of Rock under Confining Pressure, Northwestern Polytechnical University Press, Xi'an, 2012, p. 56.
      [46]
      S.S. Wang, M.H. Zhang, and S.T. Quest, Effect of sample size on static strength and dynamic increase factor of high-strength concrete from SHPB test, J. Test. Eval., 39(2011), No. 5, p. 898.
      [47]
      J.Z. Liu, J.Y. Xu, X.C Lu, L. Zhang, and Z.D. Wang, Experimental study on dynamic mechanical properties of amphibolies under impact compressive loading, Chin. J. Rock Mech. Eng., 28(2009), No. 10, p. 2113.
      • Relative Articles
      Cited By

    Catalog


    • /

      返回文章
      返回

      版权所有 ©《矿物冶金与材料学报（英文）》编辑部

      地址：北京市海淀区学院路30号邮政编码：100083

      电子邮箱：journal@ustb.edu.cn电话：+86-10-62332875

      本系统由 北京仁和汇智信息技术有限公司 开发    百度统计