微观负泊松比锚杆锚固结构面峰前循环剪切疲劳损伤特性研究

doi:10.3724/1000-6915.jrme.2024.0522

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摘要微观负泊松比(2G-NPR)锚杆抗剪切的支护性能已得到验证，但其在疲劳荷载下的损伤行为仍需进一步研究。通过室内峰前循环试验，比较PR钢(Q235钢)和2G-NPR钢锚固结构面的剪切力学特性，并探讨不同法向应力、粗糙度、剪切幅值和速率对2G-NPR钢锚固结构面剪切疲劳损伤特性的影响。结果表明：(1) 随着法向应力的增加，PR钢锚固结构面的抗剪强度在循环次数增加后显著下降，而2G-NPR钢锚固结构面的抗剪强度逐步提升，体现了负泊松比效应对提升抗剪疲劳性能的重要性；(2) 2G-NPR钢锚固结构面的峰值和残余抗剪强度随剪切速率和法向应力增加显著提高，受粗糙度和剪切幅值影响较小；峰前剪切刚度随粗糙度、剪切速率和法向应力增加而增大，剪切幅值影响较小；锚杆挠曲角随粗糙度、剪切幅值和速率增加而增大；(3) 2G-NPR锚杆在不同循环次数下的剪切力与轴向力比值均低于PR锚杆，表明其在抵抗剪切变形时能够有效承受轴向力，确保岩体的支护效果。上述研究可为2G-NPR锚杆在微震区岩体支护工程中的应用提供一定参考。

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	黄曼1
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	郭志炜1
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	洪陈杰3
	陶志刚3
	黄觐1
	2
	张贺1
	2

关键词 ：岩石力学, 峰前循环荷载, 2G-NPR钢, 锚固结构面, 剪切特性, 能量吸收特性

Abstract：The shear support performance of 2G-NPR bolts has been verified; however，their damage behavior under fatigue loading remains to be further explored. Through laboratory pre-peak cyclic loading tests，the shear mechanical properties of PR steel(Q235 steel) and 2G-NPR steel bolted rock joints were compared，exploring the effects of different normal stresses，roughness，shear amplitudes，and rates on the shear fatigue damage characteristics of 2G-NPR steel bolted rock joints. The results show that：(1) As the normal stress increases，the shear strength of PR steel bolted rock joints exhibits a marked decrease after an initial increase in the number of cycles，whereas the shear strength of 2G-NPR steel bolted rock joints gradually increases. This trend underscores the significant role of the negative Poisson?s ratio effect in enhancing the shear fatigue performance of the 2G-NPR steel bolts. (2) The peak and residual shear strengths of 2G-NPR steel bolted rock joints significantly increase with higher shear rates and normal stresses，but are less affected by changes in joint surface roughness and shear amplitude. Additionally，the pre-peak shear stiffness of these joints increases with roughness，shear rate，and normal stress，while shear amplitude has only a minor effect. The flexural angle of the anchor rod increases with the roughness，shear amplitude，and shear rate. (3) The ratio of shear force to axial force of 2G-NPR anchor bolts is consistently lower than that of PR anchor bolts under different cyclic loading conditions，indicating that the 2G-NPR bolts can effectively withstand axial force during shear deformation，thus maintaining the stability and support effectiveness of the rock mass. This research offers a valuable reference for the application of 2G-NPR anchor bolts in rock mass support engineering，particularly in regions prone to microseismic activity.

Key words： rock mechanics pre-peak cyclic loading 2G-NPR steel bolted rock joints shear characteristics energy absorption characteristics

引用本文:

黄曼1，2，郭志炜1，2，洪陈杰3，陶志刚3，黄觐1，2，张贺1，2. 微观负泊松比锚杆锚固结构面峰前循环剪切疲劳损伤特性研究[J]. 岩石力学与工程学报, 2025, 44(3): 543-556.
HUANG Man1，2，GUO Zhiwei1，2，HONG Chenjie3，TAO Zhigang3，HUANG Jin1，2，ZHANG He1，2. Study on the pre-peak cyclic shear fatigue damage characteristics of 2G-NPR bolted rock joints. , 2025, 44(3): 543-556.

链接本文:

https://rockmech.whrsm.ac.cn/CN/10.3724/1000-6915.jrme.2024.0522 或 https://rockmech.whrsm.ac.cn/CN/Y2025/V44/I3/543

[1]	JIANG Y J，ZHANG S H，LUAN H J，et al. Numerical modelling of the performance of bolted rough joint subjected to shear load[J]. Geomechanics and Geophysics for Geo-Energy and Geo-Resources，2022，8(5)：140.
[2]	程良奎，张作嵋，杨志银. 岩土加固技术[M]. 北京：地震出版社，1994：22-31.(CHENG Liangkui，ZHANG Zuomei，YANG Zhiyin. Geotechnical reinforcement technology[M]. Beijing：Earthquake Publishing House，1994：22-31.(in Chinese))
[3]	LI C C. Field observations of rock bolts in high stress rock masses[J]. Rock Mechanics and Rock Engineering，2010，43(4)：491-496.
[4]	刘才华，李育宗. 考虑横向抗剪效应的节理岩体全长黏结型锚杆锚固机制研究及进展[J]. 岩石力学与工程学报，2018，37(8)：1 856-1 872.(LIU Caihua，LI Yuzong. Research progress in bolting mechanism and theories of fully grouted bolts in jointed rock masses[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(8)：1 856-1 872.(in Chinese))
[5]	LI W T，LI X M，MEI Y C，et al. A numerical simulation approach of energy-absorbing anchor bolts for rock engineering[J]. International Journal of Rock Mechanics and Mining Sciences，2022，158：105188.
[6]	ZHAO Z，SUN W，CHEN S，et al. Coupling model of jointed rock mass and rock bolt in offshore LPG underground storage[J]. Energy Science and Engineering，2020，8(5)：1 468-1 483.
[7]	刘泉声，雷广峰，彭星新，等. 白砂岩、大理岩及花岗岩加锚剪切力学特性研究[J]. 岩石力学与工程学报，2018，37(增2)：4 007-4 015.(LIU Quansheng，LEI Guangfeng，PENG Xingxin，et al. Study on shear mechanical properties of sandstone，marble and granite after anchoring[J]. Chinese Journal of Rock Mechanics and Engineering， 2018，37(Supp.2)：4 007-4 015.(in Chinese))
[8]	LIU C H，LI Y Z. Analytical study of the mechanical behavior of fully grouted bolts in bedding rock slopes[J]. Rock Mechanics and Rock Engineering，2017，50：2 413-2 423.
[9]	LI Y，LIU C. Experimental study on the shear behavior of fully grouted bolts[J]. Construction and Building Materials，2019，223：1 123-1 134.
[10]	蒋宇静，张孙豪，栾恒杰，等. 恒定法向刚度边界条件下锚固节理岩体剪切特性试验研究[J]. 岩石力学与工程学报，2021，40(4)：663-675.(JIANG Yujing，ZHANG Sunhao，LUAN Hengjie，et al. Experimental study on shear characteristics of bolted rock joints under constant normal stiffness boundary conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(4)：663-675.(in Chinese))
[11]	蒋宇静，张孙豪，栾恒杰，等. 锚固方式对岩石节理宏细观剪切特性的影响及其机制研究[J]. 岩石力学与工程学报，2024，43(8)：1 301-1 315.(JIANG Yujing，ZHANG Sunhao，LUAN Hengjie，et al. Study of the effect of anchorage modes on the macro and micro shear characteristics of rock joints and its mechanism[J]. Chinese Journal of Rock Mechanics and Engineering，2024，43(8)：1 301-1 315.(in Chinese))
[12]	WU X，JIANG Y，LI B. Influence of joint roughness on the shear behaviour of fully encapsulated rock bolt[J]. Rock Mechanics and Rock Engineering，2018，51：953-959.
[13]	周友华，胡奉湘，饶云阶，等. 地震应力产生传递与集中机制的研究[J]. 国际地震动态，2004，(11)：8-14.(ZHOU Youhua，HU Fengxiang，RAO Yunjie，et al. Researches on the mechanisms for the transform and concentration of seismic stresses[J]. World Earthquake Dynamics，2004，(11)：8-14.(in Chinese))
[14]	李华东，姜永玲，邓辉. 列车振动荷载作用下某岩质边坡应力应变动力响应分析[J]. 水文地质工程地质，2011，38(3)：42-48.(LI Huadong，JIANG Yongling，DENG Hui. Dynamic response analysis of a rock slope under train vibration load[J]. Hydrogeology and Engineering Geology，2011，38(03)：42-48.(in Chinese))
[15]	吴泽坤，白晓宇，孙淦，等. 多循环荷载下BFRP抗浮锚杆锚固性能现场试验[J]. 岩石力学与工程学报，2024，43(9)：2 314-2 328. (WU Zekun，BAI Xiaoyu，SUN Gan，et al. Field test of anchorage performance of BFRP anti-floating anchor under multiple cyclic loads[J]. Chinese Journal of Rock Mechanics and Engineering，2024，43(9)：2 314-2 328.(in Chinese))
[16]	WU X，ZHENG H，JIANG Y，et al. Effect of cyclic shear loading on shear performance of rock bolt under different joint roughness[J]. Rock Mechanics and Rock Engineering，2023，56(3)：1 969-1 980.
[17]	杨忠平，来云亮，刘树林，等. 频发微震下上覆软弱岩体边坡动力稳定及失稳模式[J]. 岩土工程学报，2019，41(12)：2 297-2 306. (YANG Zhongping，LAI Yunliang，LIU Shulin，et al. Dynamic stability and failure mode of slopes with overlying weak rock mass under frequent micro-seismic actions[J]. Chinese Journal of Geotechnical Engineering，2019，41(12)：2 297-2 306.(in Chinese))
[18]	刘新荣，邓志云，刘永权，等. 峰前循环剪切作用下岩石节理损伤特征与剪切特性试验研究[J]. 岩石力学与工程学报，2018，37(12)：2 664-2 675.(LIU Xinrong，DENG Zhiyun，LIU Yongquan，et al. An experimental study on the cumulative damage and shear properties of rock joints under pre-peak cyclic shear loading[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(12)：2 664-2 675.(in Chinese))
[19]	HE L，ZHAO Z，LIU L，et al. Asperity degradation characteristics and mechanical behavior of rock joints subjected to pre-peak cyclic loading[J]. Geotechnical and Geological Engineering，2022，40(2)：617-634.
[20]	刘新荣，许彬，周小涵，等. 软弱层峰前循环剪切宏细观累积损伤机制研究[J]. 岩土力学，2021，42(5)：1 291-1 303.(LIU Xinrong，XU Bin，ZHOU Xiaohan，et al. Investigation on macro-meso cumulative damage mechanism of weak layer under pre-peak cyclic shear loading[J]. Rock and Soil Mechanics，2021，42(5)：1 291-1 303.(in Chinese))
[21]	何刘，赵志明，潘岳，等. 连续充填型结构面峰前循环破坏特征及再载强度特性试验研究[J]. 岩石力学与工程学报，2021，40(10)：2 027-2 037.(HE Liu，ZHAO Zhiming，PAN Yue，et al. Experimental study on the damage properties and reloading strength characteristics of continuous in filled rock joints under pre-peak cyclic loading[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(10)：2 027-2 037.(in Chinese))
[22]	KOU M，LIU X，TANG S，et al. Experimental study of the prepeak cyclic shear mechanical behaviors of artificial rock joints with multiscale asperities[J]. Soil Dynamics and Earthquake Engineering，2019，120：58-74.
[23]	HE M C，WANG Q. Excavation compensation method and key technology for surrounding rock control[J]. Engineering Geology，2022，307：106784.
[24]	LI C C，DOUCET C. Performance of D-bolts under dynamic loading[J]. Rock Mechanics and Rock Engineering，2012，45：193-204.
[25]	WU X，JIANG Y，WANG G，et al. Performance of a new yielding rock bolt under pull and shear loading conditions[J]. Rock Mechanics and Rock Engineering，2019，52：3 401-3 412.
[26]	CAI M，CHAMPAIGNE D. Influence of bolt-grout bonding on MCB conebolt performance[J]. International Journal of Rock Mechanics and Mining Sciences，2012，49：165-175.
[27]	HE M H，WANG Q，WU Q Y. Innovation and future of mining rock mechanics[J]. Journal of Rock Mechanics and Geotechnical Engineering，2021，13(1)：1-21.
[28]	陶志刚，郭爱鹏，何满潮，等. 微观负泊松比锚杆静力学特性及其工程应用研究[J]. 岩土力学，2022，43(3)：808-818.(TAO Zhigang，GUO Aipeng，HE Manchao，et al. Static characteristics and engineering applications of micro negative Poisson?s ratio bolt[J]. Rock and Soil Mechanics，2022，43(3)：808-818.(in Chinese))
[29]	陶志刚，丰于翔，赵易，等. 穿断层隧道NPR锚索支护体系抗震特性振动台试验研究[J]. 岩土力学，2024，45(4)：939-949.(TAO Zhigang，FENG Yuxiang，ZHAO Yi，et al. Shaking table test on anti-seismic characteristics of NPR anchor cable support system for tunnel crossing faults [J]. Rock and Soil Mechanics，2024，45(4)：939-949. (in Chinese))
[30]	陈泓蓉，龙建辉，张吉宁，等. 基于NPR锚索监测的顺层岩质边坡多阶变形规律研究[J]. 岩石力学与工程学报，2024，43(7)：1 763-1 774.(CHEN Hongrong，LONG Jianhui，ZHANG Jining，et al. Research on multistage deformation law of bedding rock slopes based on NPR anchor cable monitoring[J]. Chinese Journal of Rock Mechanics and Engineering，2024，43(7)：1 763-1 774.(in Chinese))
[31]	陶志刚，任树林，何满潮，等. 地下工程微观NPR锚杆钢静力拉伸及锚固抗剪力学特性[J]. 煤炭学报，2022，47(2)：683-694.(TAO Zhigang，REN Shulin，HE Manchao，et al. Static tensile and bolting shear mechanical properties of micro-NPR bolt steel in underground engineering[J]. Journal of China Coal Society，2022，47(2)：683-694. (in Chinese))
[32]	HE M C，REN S，GUO L，et al. Experimental study on influence of host rock strength on shear performance of Micro-NPR bolt steel bolted rock joints[J]. International Journal of Rock Mechanics and Mining Sciences，2022，159：105236.
[33]	HE M C，GUO A，MENG Z，PAN Y，et al. Impact and explosion resistance of NPR anchor cable：Field test and numerical simulation[J]. Underground Space，2023，10：76-90.
[34]	BARTON N. Review of a new shear-strength criterion for rock joints[J]. Engineering Geology，1973，7(4)：287-332.
[35]	杜时贵，黄曼，罗战友，等. 岩石结构面力学原型试验相似材料研究[J]. 岩石力学与工程学报，2010，29(11)：2 263-2 270.(DU Shigui，HUANG Man，LUO Zhanyou，et al. Similar material study of mechanical prototype test of rock structural plane[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(11)：2 263-2 270.(in Chinese))
[36]	WU X，JIANG Y，LI B. Influence of joint roughness on the shear behaviour of fully encapsulated rock bolt[J]. Rock Mechanics and Rock Engineering，2018，51：953-959.
[37]	WU X，ZHENG H，JIANG Y，et al. Effect of cyclic shear loading on shear performance of rock bolt under different joint roughness[J]. Rock Mechanics and Rock Engineering，2023，56(3)：1 969-1 980.
[38]	邓明科，刘华政，马福栋，等. 聚乙烯醇纤维改性高延性混凝土双面剪切试验及剪切韧性评价方法[J]. 复合材料学报，2020，37(2)：461-471.(DENG Mingke，LIU Huazheng，MA Fudong，et al. Double shear experiment of highly ductile concrete modified by polyvingl alcohol and shear toughness evaluation method[J]. Journal of Composite Materials，2020，37(2)：461-471.(in Chinese))
[39]	孙杰豪，郭保华，田世轩，等. 峰前循环剪切作用下岩石节理剪切力学特性[J]. 岩土力学，2022，43(增2)：52-62.(SUN Jiehao，GUO Baohua，TIAN Shixuan，et al. Shear mechanical properties of rock joints under pre-peakcyclic shearing condition[J]. Rock and Soil Mechanics，2022，43(Supp.2)：52-62.(in Chinese))
[40]	HE M，HU J，CHENG T，et al. Dynamic properties of micro-NPR bolt material and its controlling effect on surrounding rock mass with impact disturbances[J]. Underground Space，2024，15：331-352.
[41]	JALALIFAR H，AZIZ N. Analytical behaviour of bolt-joint intersection under lateral loading conditions[J]. Rock mechanics and rock engineering，2010，43：89-94.
[42]	LI X，AZIZ N，MIRZAGHORBANALI A，et al. Behavior of fiber glass bolts，rock bolts and cable bolts in shear[J]. Rock Mechanics and Rock Engineering，2016，49：2 723-2 735.