中低应变率扰动荷载作用下砂岩动态拉伸力学响应特征研究

doi:10.13722/j.cnki.jrme.2021.0691

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (0 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The tensile failure and instability induced by medium and low strain rate disturbance load is one of the main causes of dynamic disasters in deep coal resources and residual coal resources mining. And it is of great significance to analyze the tensile mechanical response characteristics of coal and rock under dynamic disturbance for disaster prediction and prevention. In this regard，Brazilian splitting test of sandstone under medium low strain rate disturbance load was carried out .To analyze the influence of different pre-static load levels and disturbance load amplitude on dynamic tensile mechanical response characteristics of sandstone. The results show that：The degree of damage due to disturbed loading was positively correlated with the pre-static load level, and the AE energy level increased by about 11 times when the pre-static load increased from 7 kN to 20 kN. Macroscopically, this is manifested as a reduction in tensile strength. The tensile strength of disturbed sandstone with pre-static load of 11 kN and 16 kN is 12.4 MPa and 11.5 MPa，respectively，which is 5.6% and 12.7% lower than that of static tensile strength. The existence of stress threshold value of disturbance load is verified. The sandstone in high stress state will not be destroyed in the process of small amplitude dynamic disturbance load，and the tensile strain increases logarithmically. The sandstones in high stress state are destroyed during the application of disturbing loads greater than the stress threshold. And the number of cycles of perturbation loading before damage decreases exponentially with increasing amplitude. The increase of pre-static load level and dynamic load amplitude both promotes the expansion of secondary tension cracks in the vicinity of the central tensile crack in the rock sample. The precursor of strain surge before dynamic tensile failure of rock specimen can provide reference for dynamic disaster warning.

Key words： rock mechanics dynamic and static load coupling action dynamic response Brazilian splitting test sandstone destruction properties

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	WEN Xiaoze1
	2
	FENG Gourui1
	2
	GUO Jun1
	2
	3
	WANG Pengfei1
	2
	QIAN Ruipeng1
	2
	ZHU Linjun1
	2
	HAO Chenliang1
	2
	FAN Yijiang1
	2

Cite this article:

WEN Xiaoze1,2,FENG Gourui1, et al. Dynamic tensile mechanical response properties of sandstone under medium and low strain rate disturbance load[J]. , 2022, 41(S1): 2812-2822.

URL:

http://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2021.0691 OR http://rockmech.whrsm.ac.cn/EN/Y2022/V41/IS1/2812

[4]	谢和平. 深部岩体力学与开采理论研究进展[J]. 煤炭学报，2019，44(5)：1 283-1 305.(XIE Heping. Research review of the state key research development program of China：Deep rock mechanics and mining theory[J]. Journal of China Coal Society，2019，44(5)：1 283-1 305.(in Chinese))
[41]	ERARSLAN N，WILLIAMS D J. Mechanism of rock fatigue damage in terms of fracturing modes[J]. International Journal of Fatigue，2012，43：76-89.
[6]	康红普. 煤炭开采与岩层控制的时间尺度分析[J]. 采矿与岩层控制工程学报，2021，3(1)：5-27.(KANG Hongpu. Temporal scale analysis on coal mining and strata control technologies[J]. Journal of Mining and Strata Control Engineering，2021，3(1)：5-27.(in Chinese))
[9]	王春，唐礼忠，程露萍，等. 高轴压和围压共同作用下矽卡岩受频繁动态扰动时的动力学特性[J]. 岩土力学，2018，39(12)：4 537-4 546.(WANG Chun，TANG Lizhong，CHENG Luping，et al. Dynamic characteristics of skarn subjected to frequent dynamic disturbance under combined action of high axial compression and confining pressure[J]. Rock and Soil Mechanics，2018，39(12)：4 537-4 546.(in Chinese))
[19]	TAHERI A，YFANTIDIS N，OLIVARES C L，et al. Experimental study on degradation of mechanical properties of sandstone under different cyclic loadings[J]. Geotechnical Testing Journal，2016，39(4)：673-687.
[21]	赵光明，许文松，孟祥瑞，等. 扰动诱发高应力岩体开挖卸荷围岩失稳机制[J]. 煤炭学报，2020，45(3)：936-948.(ZHAO Guangming，XU Wensong，MENG Xiangrui，et al. Instability mechanism of high stress rock mass under excavation and unloading induced by disturbance[J]. Journal of China Coal Society，2020，45(3)：936-948.(in Chinese))
[24]	陈旭，张俊文. 岩石动态扰动伺服三轴试验系统的研制与应用[J]. 岩土力学，2017，38(3)：918-924.(CHEN Xu，ZHANG Junwen. Development of a servo-controlled rock triaxial test system with dynamic disturbance and its application[J]. Rock and Soil Mechanics，2017，38(3)：918-924.(in Chinese))
[27]	ZHAO J，LI H B. Experimental determination of dynamic tensile properties of a granite[J]. International Journal of Rock Mechanics and Mining Science，2000，37(5)：861-866.
[29]	ZHOU Z L，LI X B，ZOU Y，et al. Dynamic Brazilian tests of granite under coupled static and dynamic loads[J]. Rock Mechanics and Rock Engineering，2014，47(2)：495-505.
[1]	冯国瑞，白锦文，史旭东，等. 遗留煤柱群链式失稳的关键柱理论及其应用展望[J]. 煤炭学报，2021，46(1)：164-179.(FENG Guorui，BAI Jinwen，SHI Xudong，et al. Key pillar theory in the chain failure of residual coal pillars and its application prospect[J]. Journal of China Coal Society，2021，46(1)：164-179.(in Chinese))
[7]	李夕兵，李地元，郭雷，等. 动力扰动下深部高应力矿柱力学响应研究[J]. 岩石力学与工程学报，2007，26(5)：922-928.(LI Xibing，LI Diyuan，GUO Lei，et al. Study on mechanical response of highly-stressed pillars in deep mining under dynamic disturbance[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(5)：922-928.(in Chinese))
[11]	何江. 煤矿采动动载对煤岩体的作用及诱冲机制研究[博士学位论文][D]. 北京：中国矿业大学，2013.(HE Jiang. Research of mining dynamic loading effect and its induced rock burst in coal mine[Ph. D. Thesis][D]. Beijing：China University of Mining and Technology，2013.(in Chinese))
[14]	王其胜，万国香，李夕兵. 动静组合加载下岩石破坏的声发射试验[J]. 爆炸与冲击，2010，30(3)：247-253.(WANG Qisheng，WAN Guoxiang，LI Xibing. Acoustic emission experiment of rock failure under coupled static-dynamic load[J]. Explosion And Shock Waves，2010，30(3)：247-253.(in Chinese))
[16]	HAO X J，DU W S，ZHAO Y X，et al. Dynamic tensile behaviour and crack propagation of coal under coupled static-dynamic loading[J]. International Journal of Mining Science and Technology，2020，30(5)：659-668.
[17]	LI X，ZHOU Z，LOK T S，et al. Innovative testing technique of rock subjected to coupled static and dynamic loads[J]. International Journal of Rock Mechanics and Mining Sciences，2008，45(5)：739-748.
[2]	郝兵元，张玉江，戚庭野，等. 综采面过陷落柱采动应力与柱体应力相互影响模拟研究[J]. 采矿与安全工程学报，2015，32(2)：192-198.(HAO Bingyuan，ZHANG Yujiang，QI Tingye，et al. Simulation of interaction between mine-induced stress and stress of collapse column with fully-mechanized working face advancing[J]. Journal of Mining and Safety Engineering，2015，32(2)：192-198.(in Chinese))
[3]	HE M，REN F，LIU D. Rockburst mechanism research and its control[J]. International Journal of Mining Science and Technology，2018，28(5)：829-837.
[5]	夏开文，王帅，徐颖，等. 深部岩石动力学试验研究进展[J]. 岩石力学与工程学报，2021，40(3)：448-475.(XIA Kaiwen，WANG Shuai，XU Ying，et al. Advances in experimental studies for deep rock dynamics[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(3)：448-475.(in Chinese))
[8]	王俊光，杨鹏锦，金峤. 动静加载条件下泥岩蠕变及细观破裂机制分析[J]. 中国矿业大学学报，2019，48(6)：1 223-1 229.(WANG Junguang，YANG Pengjin，JIN Qiao，et al. Mudstone creep experiment and mesomechanical analysis of failure mechanism under cyclic disturbance load and static load[J]. Journal of China University of Mining and Technology，2019，48(6)：1 223-1 229.(in Chinese))
[15]	李夕兵，周子龙，叶州元，等. 岩石动静组合加载力学特性研究[J]. 岩石力学与工程学报，2008，27(7)：1 387-1 395.(LI Xibing，ZHOU Zilong，YE Zhouyuan，et al. Study of rock mechanical characteristics under coupled static and dynamic loads[J]. Chinese Journal of Rock Mechanics and Engineering，2008，27(7)：1 387-1 395.(in Chinese))
[18]	YANG R，FANG S，GUO D，et al. Study on dynamic tensile strength of red sandstone under impact loading and negative temperature[J]. Geotechnical and Geological Engineering，2019，37(5)：4 527-4 537.
[25]	朱万成，左宇军，尚世明，等. 动态扰动触发深部巷道发生失稳破裂的数值模拟[J]. 岩石力学与工程学报，2007，26(5)：915-921.(ZHU Wancheng，ZUO Yujun，SHANG Shiming，et al. Numerical simulation of instable failure of deep rock tunnel triggered by dynamic disturbance[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(5)：915-921.(in Chinese))
[28]	ZHOU Z L，LI X B，ZOU Y，et al. Dynamic Brazilian tests of granite under coupled static and dynamic loads[J]. Rock Mechanics and Rock Engineering，2014，47(2)：495-505.
[31]	苏碧军，王启智. 平台巴西圆盘试样岩石动态拉伸特性的试验研究[J]. 长江科学院院报，2004，21(1)：22-25.(SU Bijun，WANG Qizhi. An experiment study on rock tensile strength with flattened Brazilian disc specimen under dynamic loading[J]. Journal of Yangtze River Scientific Research Institute，2004，21(1)：22-25.(in Chinese))
[35]	胡少斌，王恩元，沈荣喜. 深部煤岩动力扰动响应特征及数值分析[J]. 中国矿业大学学报，2013，42(4)：540-546.(HU Shaobin，WANG Enyuan，SHEN Rongxi. Characteristics of dynamic disturbance response in deep coal and rock and its numerical analysis[J]. Journal of China University of Mining and Technology，2013，42(4)：540-546.(in Chinese))
[37]	冯国瑞，杨创前，张玉江，等. 刀柱残采区上行长壁开采支承压力时空演化规律研究[J]. 采矿与安全工程学报，2019，36(5)：857-866.(FENG Guorui，YANG Chuangqian，ZHANG Yujiang，et al. Temporal and spatial evolution law of abutment pressure during upward long-wall mining in the wedge residual pillar mining area[J]. Journal of Mining and Safety Engineering，2019，36(5)：857-866.(in Chinese))
[38]	周子龙，李国楠，宁树理，等. 侧向扰动下高应力岩石的声发射特性与破坏机制[J]. 岩石力学与工程学报，2014，33(8)：1 720-1 728. (ZHOU Zilong，LI Guonan，NIN Shuli，et al. Acoustic emission characteristics and failure mechanism of high-stressed rocks under lateral disturbance[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(8)：1 720-1 728.(in Chinese))
[39]	马春德，李夕兵，陈枫，等. 双向受压岩石在扰动荷载作用下致裂特征研究[J]. 岩石力学与工程学报，2010，29(6)：1 238-1 244. (MA Chunde，LI Xibing，CHEN Feng，et al. Fracturing behavior study of biaxial compression of rock subjected to dynamic disturbance load[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(6)：1 238-1 244.(in Chinese))
[10]	唐礼忠，武建力，刘涛，等. 大理岩在高应力状态下受小幅循环动力扰动的力学试验[J]. 中南大学学报：自然科学版，2014，45(12)：4 300-4 307.(TANG Lizhong，WU Jianli，LIU Tao，et al. Mechanical experiments of marble under high stress and cyclic dynamic disturbance of small amplitude[J]. Journal of Central South University：Science and Technology，2014，45(12)：4 300-4 307.(in Chinese))
[13]	窦林名，何江，曹安业，等. 煤矿冲击矿压动静载叠加原理及其防治[J]. 煤炭学报，2015，40(7)：1 469-1 476.(DOU Linming，HE Jiang，CAO Anye，et al. Rock burst prevention methods based on theory of dynamic and static combined load induced in coal mine[J]. Journal of China Coal Society，2015，40(7)：1 469-1 476.(in Chinese))
[23]	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))
[33]	朱万成，唐春安，黄志平，等. 静态和动态载荷作用下岩石劈裂破坏模式的数值模拟[J]. 岩石力学与工程学报，2005，24(1)：1-7.(ZHU Wancheng，TANG Chun?an，HUANG Zhiping，et al. Numerical simulation on splitting failure mode of rock under static and dynamic loadings[J]. Chinese Journal of Rock Mechanics and Engineering，2005，24(1)：1-7.(in Chinese))
[12]	龙源，冯长根，徐全军，等. 爆破地震波在岩石介质中传播特性与数值计算研究[J]. 工程爆破，2000，(3)：1-7.(LONG Yuan，FENG Changgen，XU Quanjun，et al. Study on propagation characteristics of blasting seismic waves in a rock medium and numerical calculation[J]. Engineering Blasting，2000，(3)：1-7.(in Chinese))
[20]	于洋. 特厚煤层坚硬顶板破断动载特征及巷道围岩控制研究[博士学位论文][D]. 徐州：中国矿业大学，2015.(YU Yang. Dynamic characteristic of hard roof fracture in extra thick coal seam and its application on the control of roadway surrounding rock[Ph. D. Thesis][D]. Xuzhou：China University of Mining and Technology，2015.(in Chinese))
[22]	刘德克，李克钢，吴勇，等. 一维动静组合加载下岩石力学特性的数值模拟研究[J]. 矿业研究与开发，2017，37(5)：30-34.(LIU Deke，LI Kegang，WU Yong，et al. Numerical simulation on the rock mechanical properties under one-dimensional static-dynamic coupling loading[J]. Ming R and D，2017，37(5)：30-34.(in Chinese))
[26]	王瑶，吴胜兴，周继凯，等. 花岗岩动态轴向拉伸力学性能试验研究[J]. 岩石力学与工程学报，2010，29(11)：2 328-2 336.(WANG Yao，WU Shengxing，ZHOU Jikai，et al. Experimental study of dynamic axial tensile mechanical properties of granite[J]. Chinese Journal of Rock Mechanics and Engineering，2010，29(11)：2 328-2 336.(in Chinese))
[30]	ZHANG Q B，ZHAO J. A review of dynamic experimental techniques and mechanical behaviour of rock materials[J]. Rock Mechanics and Rock Engineering，2014，47(4)：1 411-1 478.
[32]	GONG F Q，WU W X，ZHANG L. Brazilian disc test study on tensile strength-weakening effect of high pre-loaded red sandstone under dynamic disturbance[J]. Journal of Central South University，2020，27(10)：2 899-2 913.
[36]	席道瑛，刘小燕，张程远. 由宏观滞回曲线分析岩石的微细观损伤[J]. 岩石力学与工程学报，2003，22(2)：182-187.(XI Daoying，LIU Xiaoyan，ZHANG Chengyuan. Analysis on micro and meso-damage on rock by macro-hysteresis curve[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(2)：182-187.(in Chinese))
[40]	TAO Z Y，MO H H. An experimental study and analysis of the behaviour of rock under cyclic loading[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1990，27(1)：51-56.
[42]	GRADY D E，KIPP M E. Continuum modelling of explosive fracture in oil shale[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1980，17(3)：147-157.
[34]	ISRM. Suggested methods for determining the strength of rock materials in triaxial compression[J]. International Journal of Rock Mechanics and Mining Science and Geomechanics Abstracts，1978，15：99-100.