煤岩界面粗糙度对超低摩擦效应影响研究

doi:10.13722/j.cnki.jrme.2023.0730

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Abstract To reveal the influence mechanism of coal-rock interface roughness on ultra-low friction rock burst under dynamic load disturbance，a self-designed ultra-low friction test device for coal-rock interface is used. The coal rock block of 1 082 m mining depth in Shenyang Hongyang Three Mine is used as the research object. The coal block is used as the working block，different roughness characteristics of coal-rock interface is simulated by changing the surface roughness of coal blocks. The horizontal displacement of the working block is used to characterize the ultra-low friction effect strength during the impact process. The influence of different roughnesses of coal-rock interface on ultra-low friction effect of coal-rock block under stress wave disturbance is tested. The results show that：(1) under different coal-rock interface roughnesses，the ultra-low friction effect has a frequency sensitivity value. When the disturbance frequency is 2 Hz，the coal-rock interface is more prone to ultra-low friction effects. (2) The disturbance amplitude is linearly positively correlated with the ultra-low friction effect strength. The smaller the coal-rock interface roughness，the greater the horizontal displacement and horizontal acceleration of the working block，and the greater the ultra-low friction effect strength. The greater the coal-rock interface roughness，the greater the increase of the horizontal displacement and acceleration of the working block，and the greater the influence of the disturbance amplitude on the ultra-low friction effect. (3) The roughness only affects the ultra-low friction effect within a certain range，and JRC = 3.81 is the critical value affecting the ultra-low friction effect. (4) The greater the horizontal impact force，the greater the horizontal displacement and horizontal acceleration of the working block，and the greater the ultra-low friction effect strength.

Key words： mining engineering coal-rock interface roughness stress wave disturbance coal rock blocks ultra-low friction effect

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	Articles by authors
	LI Liping1
	HU Xuejin1
	PAN Yishan2
	SUN Yuantao1

Cite this article:

LI Liping1,HU Xuejin1,PAN Yishan2, et al. Study on the influence of coal-rock interface roughness on ultra-low friction effect[J]. , 2024, 43(4): 851-861.

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http://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2023.0730 OR http://rockmech.whrsm.ac.cn/EN/Y2024/V43/I4/851

[3]	潘一山. 煤矿冲击地压[M]. 北京：科学出版社，2018：156-178.(PAN Yishan. Rock burst in coal mine[M]. Beijing：Science Press，2018：156-178.(in Chinese))
[23]	EL-SOUDANI S M. Profilometric analysis of fractures[J]. Metallography，1978，11(3)：247-336.
[20]	BARTON N. Review of a new shear-strength criterion for rock joints[J]. Engineering Geology，1973，7(4)：287-332.
[4]	李利萍. 煤矿深部超低摩擦型冲击地压理论与试验研究[博士学位论文][D]. 阜新：辽宁工程技术大学，2018.(LI Liping. Theoretical and experimental study of ultra-low friction rock burst in deep coal mine[Ph. D. Thesis][D]. Fuxin：Liaoning Technical University，2018.(in Chinese))
[6]	KURLENYA M V，OPARIN V N，BALMASHNOVA E G，et al. On dynamic behavior of self-stressed block media. Part 1. One-dimensional mechanico-mathematical model[J]. Journal of Mining Science，2001，37(1)：1-9.
[9]	王明洋，戚承志，钱七虎. 深部岩体块系介质变形与运动特性研究[J]. 岩石力学与工程学报，2005，24(16)：2 825-2 830.(WANG Mingyang，QI Chengzhi，QIAN Qihu. Study on deformation and motion characteristics of deep rock mass block system[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(16)：2 825-2 830.(in Chinese))
[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. Research on rock mass mechanics in deep mining[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(16)：2 803-2 813.(in Chinese))
[2]	何满潮. 深部开采工程岩石力学现状及其展望[C]// 第八次全国岩石力学与工程学术大会论文集. 北京：科学出版社，2004：88-94.(HE Manchao. Current situation and prospect of rock mechanics in deep mining engineering[C]// Proceedings of the 8th National Conference on Rock Mechanics and Engineering. Beijing：Science Press，2004：88-94.(in Chinese))
[5]	KURLENYA M V，OPARIN V N. Problems of nonlinear geomechanics. Part II[J]. Journal of Mining Science，2000，36(4)：305-326.
[15]	蒋海明，李杰，王明洋. 块系岩体滑移失稳中低摩擦效应的理论与试验研究[J]. 岩土力学，2019，40(4)：1 405-1 412.(JIANG Haiming，LI Jie，WANG Mingyang. Theoretical and experimental study on low friction effect in slip instability of block rock mass[J]. Rock and Soil Mechanics，2019，40(4)：1 405-1 412.(in Chinese))
[25]	谢和平. 岩石节理的分形描述[J]. 岩土工程学报，1995，17(1)：18-23.(XIE Heping. Fractal description of rock joints[J]. Chinese Journal of Geotechnical Engineering，1995，17(1)：18-23.(in Chinese))
[35]	何满潮，刘冬桥，宫伟力，等. 冲击岩爆试验系统研发及试验[J].岩石力学与工程学报，2014，33(9)：1 729-1 739.(HE Manchao，LIU Dongqiao，GONG Weili，et al. Development of a testing system for impact rockbursts[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(9)：1 729-1 739.(in Chinese))
[7]	ALEKSANDROVA N，SHER E. Modeling of wave propagation in block media[J]. Journal of mining science，2004，40(6)：579-587.
[11]	WU H，FANG Q，ZHANG Y D，et al. Mechanism of anomalous low friction phenomenon in deep block rock mass[J]. Mining Science and Technology，2009，19(4)：409-419.
[14]	何满潮，王炀，刘冬桥，等. 基于二维数字图像相关技术的块系花岗岩超低摩擦效应实验研究[J]. 煤炭学报，2018，43(10)：2 732-2 740.(HE Manchao，WANG Yang，LIU Dongqiao，et al. Experimental study on ultra-low friction effect of block granite based on two-dimensional digital image correlation technology[J]. Journal of China Coal Society，2018，43(10)：2 732-2 740.(in Chinese))
[17]	李利萍，余泓浩，张海涛，等. 含软弱夹层煤岩界面超低摩擦效应试验研究[J]. 岩石力学与工程学报，2023，42(7)：1 638-1 649.(LI Liping，YU Honghao，ZHANG Haitao，et al. Experimental study on ultra-low friction effect at the interface of coal rock containing weak sandwich[J]. Chinese Journal of Rock Mechanics and Engineering，2023，42(7)：1 638-1 649.(in Chinese))
[19]	李利萍，潘一山，鞠翔宇，等. 平均应力对超低摩擦型冲击地压影响试验研究[J]. 中国矿业大学学报，2020，49(1)：76-83.(LI Liping，PAN Yishan，JV Xiangyu，et al. Experimental study on the influence of average stress on ultra-low friction rock burst[J]. Journal of China University of Mining and Technology，2020，49(1)：76-83.(in Chinese))
[21]	TSE R，CRUDEN D M. Estimating joint roughness coefficients[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1979，16(5)：303-307.
[24]	MAERZ N H，FRANKLIN J A，BENNETT C P. Joint roughness measurement using shadow profilometry[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1990，27(5)：329-343.
[27]	杜时贵，陈禹，樊良本. JRC修正直边法的数学表达[J]. 工程地质学报，1996，4(2)：36-43.(DU Shigui，CHEN Yu，FAN Liangben. The mathematical expression of JRC modified straight edge method[J]. Journal Engineering Geology，1996，4(2)：36-43.(in Chinese))
[29]	孙金斗. 基于层间摩擦滑动的冲击地压实验研究[硕士学位论文][D]. 北京：北方工业大学，2020.(SUN Jindou. Experimental study of rock burst based on interlayer friction sliding[M. S. Thesis][D]. Beijing：North China University of Technology，2020.(in Chinese))
[31]	李新平，汪斌，周桂龙. 我国大陆实测深部地应力分布规律研究[J]. 岩石力学与工程学报，2012，31(增1)：2 875-2 880.(LI Xinping，WANG Bin，ZHOU Guilong. Study on the distribution law of in-situ stress in China?s mainland[J]. Chinese Journal of Rock Mechanics and Engineering，2012，31(Supp.1)：2 875-2 880.(in Chinese))
[34]	刘涛，杨鹏，吕文生，等. 岩石在不同应力幅值下受低频循环扰动的力学特性试验[J]. 煤炭学报，2017，42(9)：2 280-2 286.(LIU Tao，YANG Peng，LV Wensheng，et al. Rock mechanical properties experiments with low-frequency circulation disturbance under different stress amplitudes[J]. Journal of China Coal Society，2017，42(9)：2 280-2 286.(in Chinese))
[8]	ALEKSANDROVA N，CHERNIKOV A G，SHER E. Experimental investigation into the one-dimensional calculated model of wave propagation in block medium[J]. Journal of Mining Science，2005，41(3)：232-239.
[10]	王洪亮，葛涛，王德荣，等. 块系岩体动力特性理论与实验对比分析[J]. 岩石力学与工程学报，2007，26(5)：951-958.(WANG Hongliang，GE Tao，WANG Derong，et al. Comparative analysis of theoretical and experimental dynamic characteristics of block rock mass[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(5)：951-958.(in Chinese))
[12]	吴昊，方秦，王洪亮. 深部块系岩体超低摩擦现象的机制分析[J]. 岩土工程学报，2008，30(5)：769-775.(WU Hao，FANG Qin，WANG Hongliang. Mechanism analysis of ultra-low friction phenomenon in deep block rock mass[J]. Chinese Journal of Geotechnical Engineering，2008，30(5)：769-775.(in Chinese))
[13]	RUTTER E H，HACKSTON A J，YEATMAN E，et al. Reduction of friction on geological faults by weak-phase smearing[J]. Journal of Structural Geology，2013，51(1)：52-60.
[16]	LIU D，LIN Y，WANG Y，et al. Experimental study on ultra-low friction effect of granite block under coupled static and dynamic loads[J]. Geotechnical and Geological Engineering，2020，38(16)：4 521-4 528.
[18]	李利萍，唐垒，潘一山，等. 应力波扰动对砂岩块体超低摩擦效应影响分析[J]. 岩石力学与工程学报，2021，40(增1)：2 773-2 780. (LI Liping，TANG Lei，PAN Yishan，et al. Analysis of influence of stress wave disturbance on anomalously low friction effect in sandstone block[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(Supp.1)：2 773-2 780.(in Chinese))
[22]	YANG Z Y，LO S C，DI C C. Reassessing the joint roughness coefficient(JRC) estimation using Z2[J]. Rock Mechanics and Rock Engineering，2001，34(3)：243-251.
[26]	谢和平，PARISEAU W G. 岩石节理粗糙系数(JRC)的分形估计[J].中国科学(B辑)，1994，24(5)：524-530.(XIE Heping，PARISEAU W G. Fractal estimation of rock joint roughness coefficient(JRC)[J]. Science of China(Series B)，1994，24(5)：524-530.(in Chinese))
[28]	张凯旋. 基于表面粗糙度的煤体活性剂润湿特性研究[硕士学位论文][D]. 焦作：河南理工大学，2020.(ZHAGN Kaixuan.Study on wetting properties of coal active agents based on surface roughness[M. S. Thesis][D]. Jiaozuo：Henan Polytechnic University，2020.(in Chinese))
[30]	王来贵，赵国超，刘向峰，等. 滑动过程中砂岩节理摩擦因数演化规律[J]. 煤炭学报，2021，46(9)：2 874-2 882.(WANG Laigui，ZHAO Guochao，LIU Xiangfeng，et al. Evolution of friction factor of sandstone joints in sliding process[J]. Journal of China Coal Society，2021，46(9)：2 874-2 882.(in Chinese))
[32]	陈绍杰. 煤岩强度与变形特征实验研究及其在条带煤柱设计中的应用[硕士学位论文][D]. 青岛：山东科技大学，2005.(CHEN Shaojie. Experimental study on strength and deformation characteristics of coal and rock and its application in strip coal pillar design[M. S. Thesis][D]. Qingdao：Shandong University of Science and Technology，2005.(in Chinese))
[33]	周宏伟，谢和平，左建平. 深部高地应力下岩石力学行为研究进展[J]. 力学进展，2005，35(1)：91-99.(ZHOU Hongwei，XIE Heping，ZUO Jianping. Research progress of rock mechanical behavior under deep high geostress[J]. Advances in Mechanics，2005，35(1)：91-99.(in Chinese))