恒定法向刚度条件下吸能锚杆锚固节理岩体剪切特性试验研究

doi:10.13722/j.cnki.jrme.2023.0599

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摘要为研究深部岩体工程即恒定法向刚度(CNS)边界条件下吸能锚杆的锚固效果及锚固节理抗剪性能，开展CNS边界条件下吸能锚杆锚固类岩石节理的剪切试验，探究节理面粗糙度(JRC)及锚固深度(h)对类岩石节理剪切应力(τ)、法向位移(?n)、法向应力(?n)、节理面破坏特征、锚杆变形特征的影响规律。结果表明：吸能锚杆可有效提高深部岩体锚固节理的屈服强度及剪切强度，且其提高幅度随着JRC的增大呈现出逐渐增加的趋势，其剪切应力在弹性阶段后产生应力硬化现象。而节理面剪切磨损面积占比随JRC的增加逐渐增大，锚杆的施加使其上涨了20.88%～109.21%。随着锚固深度的增加，节理面的剪切应力、法向位移、法向应力和剪切磨损面积占比均呈现出先增大后减小的趋势，当锚固深度为80 mm时各项指标参数最优，此时锚杆塑性变形段的锚固作用可充分发挥。研究成果为深部节理岩体支护作业的减能增效提供了重要理论支撑。

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	韩观胜1
	陈志靖1
	李博1
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	周宇1
	丁书学3
	钟振1

关键词 ：岩石力学, 节理面粗糙度, 锚固深度, 吸能锚杆, 恒定法向刚度, 剪切特性

Abstract：To explore the shear characteristic of energy-absorbing-bolt anchored rock joints and corresponding bolt performance under constant normal stiffness(CNS) boundary conditions(the condition is associated with deep buried rock mass engineering). We conducted direct shear tests on energy-absorbing bolted rock-like joints. In particular，the tests were performed under diverse joint roughness coefficient(JRC) and anchorage depth(h) to investigate their influence on the deformation characteristics of anchor bolt and mechanical properties of rock joints，such as shear stress(τ)，normal displacement(?n)，normal stress(?n) and failure characteristics of joint surfaces. The test results revealed that energy-absorbing bolt effectively enhance the yield strength and shear strength of deep rock joints. The improvement degree progressively increases with a higher JRC value，in which the shear stress first undergoes the elastic period，followed by the stress hardening period. Besides，the shear-induced damage area on the joint surface grows with increased JRC，and it grows by 20.88%–109.21% under energy-absorbing bolt anchored conditions. Moreover，an increase in anchorage depth initially leads to an increase in shear stress，normal displacement，normal stress，and the shear-induced damage area of the joint surface，followed by a subsequent decrease. The optimal values for these properties were observed at an anchorage depth of 80 mm，allowing for the full utilization of the anchorage effect during the plastic deformation stage of the anchor bolt. These findings provide significant theoretical support for reducing cost and improving efficiency in the support of deep rock joints.

Key words： rock mechanics joint roughness coefficient anchorage depth energy-absorbing bolt constant normal stiffness shear characteristics

引用本文:

韩观胜1，陈志靖1，李博1，2，周宇1，丁书学3，钟振1. 恒定法向刚度条件下吸能锚杆锚固节理岩体剪切特性试验研究[J]. 岩石力学与工程学报, 2024, 43(4): 999-1012.
HAN Guansheng1，CHEN Zhijing1，LI Bo1，2，ZHOU Yu1，DING Shuxue3，ZHONG Zhen1. Experimental study on shear characteristics of energy-absorbing bolt anchored jointed rock mass under constant normal stiffness condition. , 2024, 43(4): 999-1012.

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http://rockmech.whrsm.ac.cn/CN/10.13722/j.cnki.jrme.2023.0599 或 http://rockmech.whrsm.ac.cn/CN/Y2024/V43/I4/999

[1]	何满潮，谢和平，彭苏萍，等. 深部开采岩体力学研究[J]. 岩石力学与工程学报，2005，24(16)：2 803-2 813.(HE Manchao，XIE Heping，PENG Suping，et al. Study on rock mechanics in deep mining engineering[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(16)：2 803-2 813.(in Chinese))
[11]	LI L，HAGAN P，SAYDAM S，et al. Parametric study of rockbolt shear behaviour by double shear test[J]. Rock Mechanics and Rock Engineering，2016，49(12)：4 787-4 797.
[21]	CUI G J，ZHANG C Q，CHEN J L，et al. Effect of bolt inclination angle on shear behavior of bolted joints under CNL and CNS conditions[J]. Journal of Central South University，2020，27(3)：937-950.
[31]	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.
[41]	HAN G，JING H，JIANG Y，et al. Effect of cyclic loading on the shear behaviours of both unfilled and infilled rough rock joints under constant normal stiffness conditions[J]. Rock Mechanics and Rock Engineering，2020，53(1)：31-57.
[8]	LI X，YANG G，NEMCIK J，et al. Numerical investigation of the shear behaviour of a cable bolt in single shear test[J]. Tunnelling and Underground Space Technology，2019，84(2)：227-236.
[17]	崔国建，张传庆，韩华超，等. CNL及CNS条件下结构面剪切特性试验研究[J]. 岩石力学与工程学报，2019，38(增2)：3 384-3 392. (CUI Guojian，ZHANG Chuanqing，HAN Huachao，et al. Experiment study on shear behavior of artificial joint under CNL and CNS boundary conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2019，38(Supp.2)：3 384-3 392.(in Chinese))
[18]	JIANG Y J，XIAO J，TANABASHI Y，et al. Development of an automated servo-controlled direct shear apparatus applying a constant normal stiffness condition[J]. International Journal of Rock Mechanics and Mining Sciences，2004，41(2)：275-286.
[20]	SAADAT M，TAHERI A. Effect of contributing parameters on the behaviour of a bolted rock joint subjected to combined pull-and-shear loading：a DEM approach[J]. Rock Mechanics and Rock Engineering，2020，53(1)：383-409.
[24]	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(3)：396-404.
[26]	WANG G，WU X，JIANG Y，et al. Quasi-static laboratory testing of a new rock bolt for energy-absorbing applications[J]. Tunnelling and Underground Space Technology，2013，38(6)：122-128.
[27]	HE M，GONG W，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(3)：29-42.
[28]	LI C C. Performance of D-bolts under static loading[J]. Rock Mechanics and Rock Engineering，2012，45(2)：183-192.
[30]	王亮清，朱林锋，郑罗斌，等. 考虑节理粗糙度的锚固节理岩体剪切试验[J]. 中国公路学报，2021，34(6)：38-47.(WANG Liangqin，ZHU Linfeng，ZHENG Luobin，et al. Shear test of bolted joint rock masses considering joint roughness[J]. China Journal of Highway and Transport，2021，34(6)：38-47.(in Chinese))
[34]	AYDIN A. The ISRM suggested methods for rock characterization，testing and monitoring：2007-2014[J]. International Journal of Rock Mechanics and Mining Sciences，2009，46(1)：627-634.
[36]	尹乾，靖洪文，孟波，等. 恒定法向刚度条件下三维粗糙裂隙面剪切力学特性[J]. 岩石力学与工程学报，2020，39(11)：2 213-2 225.(YIN Qian，JING Hongwen，MENG Bo，et al. Shear mechanical properties of 3D rough rock fracture surfaces under constant normal stiffness conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2020，39(11)：2 213-2 225.(in Chinese))
[38]	康红普，王金华. 煤巷锚杆支护理论与成套技术[M]. 北京：煤炭工业出版社，2007：115-120.(KANG Hongpu，WANG Jinghua. Rock bolting theory and complete technology for coal roadways[M]. Beijing：China Coal Industry Publishing House，2007：115-120.(in Chinese))
[40]	丁书学. 深部含软弱夹层巷道围岩锚固承载特性及工程应用[博士学位论文][D]. 徐州：中国矿业大学，2018.(DING Shuxue. Study on anchoring and bearing mechanical properties of surrounding rock containing weak interlayer in deep roadway and application[Ph. D. Thesis][D]. Xuzhou：China University of Mining and Technology，2018.(in Chinese))
[44]	CHEN N，ZHANG X，JIANG Q，et al. Shear behavior of rough rock joints reinforced by bolts[J]. International Journal of Geomechanics，2018，18(1)：04017130.
[46]	田华，伊西特，李盼，等. 一种改进的玻璃纤维锚杆拉伸试验模型[J]. 理化检验(物理分册)，2015，51(2)：109-112.(TIAN Hua，YIN Xite，LI Pan，et al. An improved tensile test model for glass fiber anchor rods[J]. Physical Testing and Chemical Analysis(Part A：Physical Testing)，2015，51(2)：109-112.(in Chinese))
[5]	GHADIMI M，SHAHRIAR K，JALALIFAR H. A new analytical solution for the displacement of fully grouted rock bolt in rock joints and experimental and numerical verifications[J]. Tunnelling and Underground Space Technology，2015，50(6)：143-151.
[15]	刘爱卿，鞠文君，许海涛，等. 锚杆预紧力对节理岩体抗剪性能影响的试验研究[J]. 煤炭学报，2013，38(3)：391-396.(LIU Aiqing，JU Wenjun，XU Haitao，et al. Experimental study on the effect of bolt prestress on the shear behavior of jointed rock-mass[J]. Journal of China Coal Society，2013，38(3)：391-396.(in Chinese))
[25]	JAGER A. Two new support units for the control of rockburst damage[C]// International Symposium on Rock Support. [S. l.]：[s. n.]，1992：621-631.
[35]	刘日成，尹乾，杨瀚清，等. 恒定法向刚度边界条件下三维粗糙节理面循环剪切力学特性[J]. 岩石力学与工程学报，2021，40(6)：1 092-1 109.(LIU Richeng，YIN Qian，YANG Hanqing，et al. Cyclic shear mechanical properties of 3D rough joint surfaces under constant normal stiffness(CNS) boundary conditions[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(6)：1 092-1 109.(in Chinese))
[45]	葛修润，刘建武. 加锚节理面抗剪性能研究[J]. 岩土工程学报，1988，10(1)：8-19.(GE Xiurun，LIU Jianwu. Study of the shear resistance behaviour of bolted rock joints[J]. Chinese Journal of Geotechnical Engineering，1988，10(1)：8-19.(in Chinese))
[3]	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 and progress on the anchoring mechanism of full-length bonding bolt in jointed rock mass considering transverse shear effect[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(8)：1 856-1 872.(in Chinese))
[2]	LI L，HAGAN P C，SAYDAM S，et al. Shear resistance contribution of support systems in double shear test[J]. Tunnelling and Underground Space Technology Incorporating Trenchless Technology Research，2016，56(12)：168-175.
[4]	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(7)：2 723-2 735.
[6]	SHANG J L，YOKOTA Y，ZHAO Z，et al. DEM simulation of mortar-bolt interface behaviour subjected to shearing[J]. Construction and Building Materials，2018，185(28)：120-137.
[7]	SRIVASTAVA L P，SINGH M. Effect of fully grouted passive bolts on joint shear strength parameters in a blocky mass[J]. Rock Mechanics and Rock Engineering，2015，48(3)：1 197-1 206.
[10]	杨松林，徐卫亚，黄启平. 节理剪切过程中锚杆的变形分析[J]. 岩石力学与工程学报，2004，23(19)：3 268-3 273.(YANG Songlin，XU Weiya，HUANG Qiping. Analysis on the bolt deformation as result of joint shear displacement[J]. Chinese Journal of Rock Mechanics and Engineering，2004，23(19)：3 268-3 273.(in Chinese))
[12]	何栋梁，杨伟军，林杭，等. 锚固节理直剪力学行为的颗粒流数值分析[J]. 工程地质学报，2019，27(2)：302-310.(HE Dongliang，YANG Weijun，LIN Hang，et al. Numerical analysis for direct shear lest of bolted joint based on particle flow coder[J]. Journal of Engineering Geology，2019，27(2)：302-310.(in Chinese))
[14]	张伟，刘泉声. 基于剪切试验的预应力锚杆变形性能分析[J]. 岩土力学，2014，35(8)：2 231-2 240.(ZHANG Wei，LIU Quansheng. Analysis of deformation characteristics of prestressed anchor bolt based on shear test[J]. Rock and Soil Mechanics，2014，35(8)：2 231-2 240. (in Chinese))
[16]	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))
[9]	腾俊洋，张宇宁，唐建新，等. 锚固方式对节理岩体剪切性能影响试验研究[J]. 岩土力学，2017，38(8)：2 279-2 285.(TENG Junyang，ZHANG Yuning，TANG Jianxin，et al. Experimental study on shear behavior of jointed rock mass with anchorage mode[J]. Rock and Soil Mechanics，2017，38(8)：2 279-2 285.(in Chinese))
[13]	刘泉声，雷广峰，彭星新，等. 锚杆锚固对节理岩体剪切性能影响试验研究及机制分析[J]. 岩土力学，2017，38(增1)：27-35.(LIU Quansheng，LEI Guangfeng，PENG Xingxin，et al. Experimental study and mechanism analysis of influence of bolt anchoring on shear properties of jointed rock mass[J]. Rock and Soil Mechanics，2017，38(Supp.1)：27-35.(in Chinese))
[23]	刘泉声，雷广峰，彭星新. 深部裂隙岩体锚固机制研究进展与思考[J]. 岩石力学与工程学报，2016，35(2)：312-332.(LIU Quansheng，LEI Guangfeng，PENG Xingxin .Advance and review on the anchoring mechanism in deep fractured rock mass[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(2)：312-332.(in Chinese))
[33]	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(3)：953-959.
[43]	中华人民共和国行业标准编写组. T/CSRME 035—2023 岩石节理直剪-渗流耦合试验规程[S]. 北京：中国标准出版社，2023.(The Professional Standards Compilation Group of People?s Republic of China. T/CSRME 035—2023 Specification for coupled direct shear-flow test of rock joints[S]. Beijing：Standards Press of China，2023.(in Chinese))
[19]	SAADAT M，TAHERI A. A numerical study to investigate the influence of surface roughness and boundary condition on the shear behaviour of rock joints[J]. Bulletin of Engineering Geology and the Environment，2020，79(5)：2 483-2 498.
[29]	WU X，JIANG Y，GUAN Z，et al. Estimating the support effect of energy-absorbing rock bolts based on the mechanical work transfer ability[J]. International Journal of Rock Mechanics and Mining Sciences，2018，103(3)：168-178.
[39]	丁书学，靖洪文，齐燕军，等. 含软弱夹层锚固体变形过程中锚杆受力分析[J]. 采矿与安全工程学报，2017，34(6)：1 094-1 102. (DING Shuxue，JING Hongwen，QI Yanjun，et al. Analysis on bolt performance during deformation process of anchorage containing a weak interlayer[J]. Journal of Mining and Safety Engineering，2017，34(6)：1 094-1 102.(in Chinese))
[22]	WANG C，JIANG Y，WANG G，et al. Experimental investigation on the shear behavior of the bolt-grout interface under CNL and CNS conditions considering realistic bolt profiles[J]. Geomechanics and Geophysics for Geo-Energy and Geo-Resources，2022，8(4)：111.
[32]	WU X，ZHENG H，JIANG Y. Influence of joint roughness on the shear properties of energy-absorbing bolt[J]. International Journal of Rock Mechanics and Mining Sciences，2023，163(3)：105322.
[42]	BROWN，ED E T. Rock characterization，testing and monitoring：ISRM suggested methods[M]. [S. l.]：Pergamon Press，1981：3-52.
[37]	康红普. 煤巷锚杆支护成套技术研究与实践[J]. 岩石力学与工程学报，2005，24(21)：161-166.(KANG Hongpu，Study and application of complete rock bolting technology to coal roadway[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(21)：161-166.(in Chinese))