高阻尼橡胶用于岩石动载冲击防护的吸能特性试验研究

doi:10.13722/j.cnki.jrme.2017.1096

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摘要为了有效控制和减少深部高应力岩体冒落、硐室失稳及岩爆等工程动力灾害，借助于高阻尼橡胶材料在抗冲击、抗剪及能量吸收等方面的优越性能，拟研发带有高阻尼橡胶材料的深部新型硬岩小应变吸能锚杆，其吸能效果主要取决于高阻尼橡胶材料性能，为了系统评价高阻尼橡胶用于岩石冲击防护的吸能特性，文中利用?50 mm分离式Hopkinson冲击压缩试验系统，对高阻尼橡胶、花岗岩–花岗岩组合试件以及高阻尼橡胶–花岗岩组合试件开展不同加载速率条件下的冲击试验，探讨对比高阻尼橡胶的吸能规律及其吸能效果。研究结果表明：高阻尼橡胶吸收的能量随入射能增加呈线性增加，说明吸收的能量占入射能的比例恒定；花岗岩与花岗岩组合试件分形维数增长速度比橡胶花岗岩组合试件快5.5倍，反映高阻尼橡胶在外荷载激振下具有良好的吸能特性；不同厚度的高阻尼橡胶材料存在最佳吸收能量，入射能在200～250 J范围内橡胶最佳厚度为15～20 mm，研究成果将为吸能锚杆的研发提供理论和数据支撑。

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关键词 ：岩石力学, 深部硬岩, 小应变, 动力灾害, 高阻尼橡胶, 吸能特性

Abstract：In order to control and reduce rockfall，chamber instability，rockburst and other engineering dynamic，a new energy absorbing bolt is developed，taking advantage of the excellent properties of high damping rubber such as resisting impact effect，resisting shearing and absorbing energy. In this paper，to evaluate the energy absorbing characteristics of high damping rubber on impact protection of rock，a series of impact tests were conducted by SHPB system of ?50 mm. The energy absorbing characteristics of rubber samples，granite samples and rubber-granite samples under different loading rates were obtained. Results shows that the energy absorbed by high damping rubber increases linearly with incident energy，which indicates that the energy absorbing rate is nearly constant. For granite samples，the growth rate of fractal dimension is 5.5 times that of rubber-granite samples，which reflects good energy absorbing characteristics of high damping rubber under dynamic loading. In addition，the optimal relationship between rubber thickness and absorbed energy is confirmed. When the incident energy is between 200–250 J，the recommended rubber thickness of rubber is 15–20 mm. The research results can provide design guidance and theoretical foundation for the development of energy absorbing bolts.

Key words： rock mechanics deep hard rock small strain dynamic disaster high damping rubber energy absorbing

引用本文:

乔兰，周明，杨建明，李庆文. 高阻尼橡胶用于岩石动载冲击防护的吸能特性试验研究[J]. 岩石力学与工程学报, 2018, 37(4): 961-968.
QIAO Lan，ZHOU Ming，YANG Jianming，LI Qingwen. Experimental study on energy absorption of high damping rubber for rock under dynamic loads. , 2018, 37(4): 961-968.

链接本文:

http://www.rockmech.org/CN/10.13722/j.cnki.jrme.2017.1096 或 http://www.rockmech.org/CN/Y2018/V37/I4/961

[7]	LI C C，DOUCET C. Performance of D-bolts under dynamic loading conditions[J]. Rock Mechanics and Rock Engineering，2012，45：193-204.
[6]	LI C C. A new energy-absorbing bolt for rock support in high stress rock masses[J]. International Journal of Rock Mechanics and Mining Sciences，2010，47：396-404.
[2]	李长洪，卜磊，魏晓明，等. 深部开采安全机理及灾害防控现状与态势分析[J]. 工程科学学报，2017，39(8)：1 129-1 140.(LI Changhong，BU Lei，WEI Xiaoming，et al. Current status and future trends of deep mining safety mechanism and disaster prevention and control[J]. Chinese Journal of Engineering，2017，39(8)：1 129-1 140. (in Chinese))
[10]	康红普，王金华，林健. 高预应力强力支护系统及其在深部巷道中的应用[J]. 煤炭学报，2007，32(12)：1 233-1 238.(KANG Hongpu，WANG Jinhua，LIN Jian. Pretension stress and intensive bolting system and its application in deep roadways[J]. Journal of China Coal Society，2007，32(12)：1 233-1 238.(in Chinese))
[12]	何满潮，任富强，宫伟力，等. 应变型岩爆物理模拟实验过程的温度特征[J]. 中国矿业大学学报，2017，46(4)：692-698.(HE Manchao，REN Fuqiang，GONG Weili，et al. Temperature characteristics during physical simulation test of strain burst[J]. Journal of China University of Mining and Technology，2017，46(4)：692-698.(in Chinese))
[20]	谢和平，高峰，周宏伟，等. 岩石断裂和破碎的分形研究[J]. 防灾减灾工程学报，2003，23(4)：1-9.(XIE Heping，GAO Feng，ZHOU Hongwei，et al. Fractal fracture and fragmentation in rocks[J]. Journal of Disaster Prevention and Mitigation Engineering，2003，23(4)：1-9.(in Chinese))
[1]	赵兴东，李元辉，刘建坡，等. 红透山矿深部开采岩爆潜在区微震活动性研究[J]. 东北大学学报：自然科学版，2009，30(9)：1 330- 1 333.(ZHAO Xingdong，LI Yuanhui，LIU Jianpo，et al. Study on microseismic activity in potential rockburst zone during deep excavation in Hongtoushan Mine[J]. Journal of Northeastern University：Natural Science，2009，30(9)：1 330-1 333.(in Chinese))
[5]	CHARETTE F，PLOUFFE M. Roofex-results of laboratory testing of a new concept of yieldable tendon[C]// POTVIN Y ed. Proceedings of the 4th International Seminar Deep and High Stress Mining. [S. l.]：[s. n.]，2007：395-404.
[9]	HE M C，GONG W L，WANG J，et al. Development of a novel energy-absorbing bolt with extraordinarily large elongation and constant resistance[J]. International Journal of Rock Mechanics and Mining Sciences，2014，67：29-42.
[11]	李夕兵，姚金蕊，宫凤强. 硬岩金属矿山深部开采中的动力学问题[J]. 中国有色金属学报，2011，21(10)：2 551-2 563.(LI Xibing，YAO Jinrui，GONG Fengqiang. Dynamic problems in deep exploitation of hard rock metal mines[J]. Transactions of Nonferrous Metals Society of China，2011，21(10)：2 551-2 563.(in Chinese))
[15]	方舟，仲建峰，周萌，等. 聚氨酯阻尼材料改性研究综述[J]. 石油化工技术与经济，2012，28(3)：54-58.(FANG Zhou，ZHONG Jianfeng，ZHOU Meng，et al. Research progress on polyurethance damping materials[J]. Technology and Economics in Petrochemicals，2012，28(3)：54-58.(in Chinese))
[17]	王礼立. 应力波基础[M]. 2版. 北京：国防工业出版社，2010：39-64.(WANG Lili. Foundation of stress waves[M]. 2nd ed. Beijing：National Defense Industry Press，2010：39-64.(in Chinese))
[19]	何满潮，杨国兴，苗金丽，等. 岩爆实验碎屑分类及其研究方法[J]. 岩石力学与工程学报，2009，28(8)：1 521-1 529.(HE Manchao，YANG Guoxing，MIAO Jinli，et al. Classification and research methods of rockburst experimental fragments[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(8)：1 521-1 529.(in Chinese))
[21]	易顺民，唐辉明. 三轴压缩条件下三峡坝基岩石破裂的分形特征[J]. 岩土力学，1999，20(3)：24-28.(YI Shunmin，TANG Huiming. The fractal characteristics of fracture of dam foundation rock under triaxial compression in the three gorges project[J]. Rock and Soil Mechanics，1999，20(3)：24-28.(in Chinese))
[3]	ORTLEPP W D. The design of support for the containment of rockburst damage in tunnels—an engineering approach[J]. Rock Support in Mining and Underground Construction，1992：593-609.
[4]	JAGER A J. Two new support units for the control of rockburst damage[J]. Rock Support in Mining and Underground Construction，1992：621-631.
[8]	何满潮，郭志彪. 恒阻大变形锚杆力学特性及工程应用[J]. 岩石力学与工程学报，2014，33(7)：1 297-1 308.(HE Manchao，GUO Zhibiao. Mechanical property and engineering application of anchor bolt with constant resistance and large deformation[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(7)：1 297-1 308.(in Chinese))
[13]	何满潮，赵菲，张昱，等. 瞬时应变型岩爆模拟试验中花岗岩主频特征演化规律分析[J]. 岩土力学，2015，36(1)：1-8.(HE Manchao，ZHAO Fei，ZHANG Yu，et al. Feature evolution of dominant frequency components in acoustic emissions of instantaneous strain-type granitic rockburst simulation tests[J]. Rock and Soil Mechanics，2015，36(1)：1-8.(in Chinese))
[14]	龙娟. EPDM/ENR宽温域阻尼材料的制备与阻尼机理研究[硕士学位论文][D]. 广州：华南理工大学，2015.(LONG Juan. Preparation and damping mechanism study of EPDM/ENR damping materal with broad temperature range[M. S. Thesis][D]. Guangzhou：South China University of Technology，2015.(in Chinese))
[16]	张一飞，文庆珍，朱金华，等. 高分子阻尼材料的研究进展[J]. 材料开发与应用，2011，26(4)：85-89.(ZHANG Yifei，WEN Qingzhen，ZHU Jinhua，el at. Recent development of damping polymer materials[J]. Development and Application of Materials，2011，26(4)：85-89.(in Chinese))
[18]	李夕兵. 岩石动力学基础与应用[M]. 北京：科学出版社，2014：269-289.(LI Xibing. Rock dynamics fundamentals and applications[M]. Beijing：Science Press，2014：269-289.(in Chinese))