收藏本站
收藏 | 手机打开
二维码
手机客户端打开本文

A quantitative criterion to describe the deformation process of rock sample subjected to uniaxial compression:From criticality to final failure

Lei Xue  Siqing Qin  Qiang Sun  Yuanyuan Wang  Haitao Qian  
【摘要】:It was found that the crack damage stress threshold,σ_(cd),is a phase transition point during the deformation process of rock and is equivalent to the unstable fixed point of renormalization group theory.Thus,a relationship exists between the renormahzation group theory and the rock deformation process,through which we can investigate the critical behavior of rock deformation.Therefore,an improved renormahzation group model,which takes into account the different stress transfer mechanisms that are closer to the actual mechanical processes,is introduced to reveal the critical behavior of the rock deformation process.Finally,a quantitative relationship between the crack damage stress threshold and peak strength,σ_(critical)/σ_(peak)peak.is theoretically established.To test the theoretical relationship we additionally present experimental results of an investigation of the ratio of the crack damage stress threshold to uniaxial compressive strength,σ_(cd)/σ_(ucs),based on different rock types.The results show that the overall average and standard deviation of σ_(cd)/σ_(ucs)is 0.80(±0.10) for low-porosity igneous,metamorphic and sedimentary rocks,a figure that is closer to the theoretical solution of σ_(critical)/σ_(peak)from the improved renormahzation group model with a stress transfer mechanism of STM — 1/r~3.Our study implies that theσ_(critical)/σ_(peak)ratio may be intrinsic to low-porosity rocks,and therefore can be considered as a reliable predictor of the peak strength of rock samples in the laboratory.

知网文化
【相似文献】
中国期刊全文数据库 前20条
1 杨更社;The advance and development of damage measurement technique of rock[J];Journal of Coal Science & Engineering(China);2003年02期
2 ;Design,construction and mechanical behavior of relics of complete large Longyou rock caverns carved in argillaceous siltstone ground[J];Journal of Rock Mechanics and Geotechnical Engineering;2011年02期
3 ;Determination of mechanical parameters for jointed rock masses[J];Journal of Rock Mechanics and Geotechnical Engineering;2011年S1期
4 ;The gathering laws of fracture water in hard rock[J];Journal of Geoscientific Research in Northeast Asia;1998年01期
5 陆阳泉,赵家骝,钱家栋,王玉祥,刘建毅;Some results of modeling D-D seismogenic pattern by the fracture model experiment of large-scale rock samples(I)[J];Acta Seismologica Sinica(English Edition);1998年02期
6 杜修力;王进廷;;Seismic response analysis of arch dam-water-rock foundation systems[J];Earthquake Engineering and Engineering Vibration;2004年02期
7 ;Stochastic structural model of rock and soil aggregates by continuum-based discrete element method[J];Science in China(Series E:Technological Sciences);2005年S1期
8 ;Exploration and safety evaluation on Panzhihua iron barren rock with physical geographical methods[J];Chinese Journal of Geochemistry;2006年S1期
9 ;Numerical analysis on thermal conductivity of poly-mineral rock[J];Earthquake Science;2010年03期
10 ;Numerical investigation on the sensitivity of jointed rock mass strength to various factors[J];Mining Science and Technology;2010年04期
11 柴敬;魏世明;刘金瑄;;Study on rock deformation monitoring using fiber Bragg grating in simulation experiment[J];Journal of Coal Science & Engineering(China);2006年02期
12 曹文贵;李翔;赵衡;;Damage constitutive model for strain-softening rock based on normal distribution and its parameter determination[J];Journal of Central South University of Technology;2007年05期
13 陈沅江;吴超;傅衣铭;;Rheological characteristics of soft rock structural surface[J];Journal of Central South University of Technology;2008年S1期
14 李夕兵;洪亮;尹土兵;周子龙;叶洲元;;Relationship between diameter of split Hopkinson pressure bar and minimum loading rate under rock failure[J];Journal of Central South University of Technology;2008年02期
15 ;Optimization of monitoring the stability of surrounding rock in a metal mine[J];International Journal of Minerals Metallurgy and Materials;2009年04期
16 ;Mechanical properties of rock under coupled static-dynamic loads[J];Journal of Rock Mechanics and Geotechnical Engineering;2009年01期
17 ;Investigation of effects of clay content on F-Ф relationship by Lattice gas automation using digital rock model[J];Petroleum Science;2011年02期
18 John A. Hudson;;Design methodology for the safety of underground rock engineering[J];Journal of Rock Mechanics and Geotechnical Engineering;2012年03期
19 叶绪孙;严云秀;;A Preliminary Discussion on the Geochemical Role of Country-rock Media in Cassiterite-polymetallic Sulphide Mineralization,Dachang Ore Field,Guangxi,China[J];Chinese Journal of Geochemistry(English Language Edition);1988年01期
20 焦明若 ,张国民 ,马胜利 ,马宏生;Study on the characteristics of rock failure strain and acoustic emission field for two parallelling faults with the same slip direction including asperities[J];Acta Seismologica Sinica;2002年04期
中国重要会议论文全文数据库 前10条
1 ;Assessment of the degree of reinforcement demand(DRD) for rock slope projects--principles and a case example application[A];中国科学院地质与地球物理研究所2006年论文摘要集[C];2007年
2 ;XI'AN INSTITUTE OF GEOLOGY AND MINERAL RESOURCES ACHIEVEMENTS OF RESEARCH[A];中国地质科学院文集(1982中英文合订本)[C];1985年
3 YANG Shangyu;YAN Yifei;XU Zhiqian;YANG Xiujuan;;Studies on Rock mechanical characteristics testing and drill Bit's rock-breaking efficiency in deep wells[A];2012年海峡两岸破坏科学/材料试验学术会议论文摘要集[C];2012年
4 PENG Bo;Li Guorong;ZHAO Yong;ZHAO Yingquan;Hu Jingjing;LIAO Tai-ping;;A new method of source rock prediction based on Q cluster in YB region,northern Sichuan basin[A];第二届全国特殊气藏开发技术研讨会优秀论文集[C];2013年
5 ;Some geomechanical properties of soil-rock mixtures in the Hutiao Gorge area,China[A];中国科学院地质与地球物理研究所2007学术论文汇编(第四卷)[C];2008年
6 ;Discussion of the paper“Stress state analysis of a collapsed overhanging rock slab:A case study”by P.Paronuzzi and W.Serafini,Engineering Geology,108:65-75(2009)[A];中国科学院地质与地球物理研究所第11届(2011年度)学术年会论文集(中)[C];2012年
7 L.Q.Zhang;J.Zhou;X.L.Wang;;Back analysis of long-term tensile strength by using in-situ rock ruptures:Method comparison and numerical examples[A];中国科学院地质与地球物理研究所2012年度(第12届)学术论文汇编——工程地质与水资源研究室[C];2013年
8 ;Principles of Statistical Mechanics of Rock Masses[A];Rock Mechanics in China——Application of Computer Methods in Rock Mechanics[C];1995年
9 Hyeong-Dong Park;;Debris formation in Southeast Tibet from weathering,avalanching,rock falling and mass movement[A];中国科学院地质与地球物理研究所二○○四学术论文汇编·第四卷(新生代·地磁与空间电磁·工程地质与应用地球物理)[C];2004年
10 YANG ZhiFa;ZHANG LuQing;YUE ZhongQi;ZHANG ZhongJian;YANG TianYao;LIN XianJian;TAO KeJie;ZHU JieWang;;Waterproof of rock joint with lead strip for splitting tuff sheet in ancient China quarrying caverns[A];中国科学院地质与地球物理研究所2012年度(第12届)学术论文汇编——工程地质与水资源研究室[C];2013年
中国知网广告投放
 快捷付款方式  订购知网充值卡  订购热线  帮助中心
  • 400-819-9993
  • 010-62982499
  • 010-62783978