›› 2011, Vol. 32 ›› Issue (11): 3468-3472.

• Numerical Analysis • Previous Articles     Next Articles

Numerical analysis of influence of rock mesostructure on its deformation and strength

YU Qing-lei1，YANG Tian-hong1，ZHENG Chao1，TANG Chun-an2，WANG Pei-tao1   

  1. 1. Center for Rock Instability & Seismicity Research, Northeastern University, Shenyang 110006, China; 2. School of Civil and Hydraulic Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China
  • Received:2010-03-09 Online:2011-11-01 Published:2011-11-09

PDF (Chinese)

1472

Abstract: Digital image processing method is used as a tool to represent the heterogeneity of rock, which can be introduced into the finite element method; and a numerical model considering the real mesostructure of rock is established. By using this method to represent the heterogeneity of granite, a numerical specimen of granite is built to carry out uniaxial compressive tests. The influence of granite’s mesostructure on its deformation and strength is studied. The results show that the mesostructure of granite has an important effect on stress concentration under loading. The compressive strength of granite is evidently different when loading under different directions, and presents anisotropic behavior. But the influence of mesostructure of granite on its elastic modulus is very small. The digital image-based numerical method proposed provides an effective tool to study the mesomechanical behaviors of rock and rock-like materials.

Key words: digital image, mesostructure, anisotropic, deformation, strength

CLC Number: 

  • TU 45
[1] TU Yuan, WANG Kui-hua, ZHOU Jian, HU An-feng, . Application of effective stress method and effective consolidation stress method for strength calculation in preloading ground [J]. Rock and Soil Mechanics, 2020, 41(2): 645-654.
[2] LI Jian, CHEN Shan-xiong, YU Fei, JIANG Ling-fa, DAI Zhang-jun. Discussion on mechanism of reinforcing high and steep slope with prestressed anchor cable [J]. Rock and Soil Mechanics, 2020, 41(2): 707-713.
[3] SONG Yi-min, ZHANG Yue, XU Hai-liang, WANG Ya-fei, HE Zhi-jie. Study on creep-slip and stick-slip deformation evolution of rock based on non-uniform characteristics [J]. Rock and Soil Mechanics, 2020, 41(2): 363-371.
[4] WANG Guo-hui, CHEN Wen-hua, NIE Qing-ke, CHEN Jun-hong, FAN Hui-hong, ZHANG Chuan, . Impacts of pit excavation on foundation piles in deep silty soil by centrifugal model tests [J]. Rock and Soil Mechanics, 2020, 41(2): 399-407.
[5] FAN Ke-wei, LIU Si-hong, LIAO Jie, FANG Bin-xin, WANG Jian-lei, . Experimental study on shearing characteristics of pebbles-filled soilbags [J]. Rock and Soil Mechanics, 2020, 41(2): 477-484.
[6] LIU Jia-shun, WANG Lai-gui, ZHANG Xiang-dong, YANG Jian-jun, SUN Jia-bao, . An asymptotic state constitutive model for saturated clay under partial drainage [J]. Rock and Soil Mechanics, 2020, 41(2): 485-491.
[7] WANG feng, ZHANG Jian-qing, . Study of breakage behaviour of original rockfill materials considering size effect on particle strength [J]. Rock and Soil Mechanics, 2020, 41(1): 87-94.
[8] LI Xiao-gang, ZHU Chang-qi, CUI Xiang, ZHANG Po-yu, WANG Rui, . Experimental study of triaxial shear characteristics of carbonate mixed sand [J]. Rock and Soil Mechanics, 2020, 41(1): 123-131.
[9] ZHENG Kun, MENG Qing-shan, WANG Ren, YU Ke-fu, . Experimental study of acoustic emission characteristics of coral skeleton limestone under triaxial compression [J]. Rock and Soil Mechanics, 2020, 41(1): 205-213.
[10] WANG Zhong-kai, XU Guang-li. Influence range and quantitative prediction of surface deformation during shield tunnelling and exiting stages [J]. Rock and Soil Mechanics, 2020, 41(1): 285-294.
[11] FAN Yun-hui, ZHU Qi-zhi, NI Tao, ZHANG Kun, ZHANG Zhen-nan, . A brittle-ductile transition constitutive model based on discrete elastic tensors [J]. Rock and Soil Mechanics, 2019, 40(S1): 181-188.
[12] LI Zhi-cheng, FENG Xian-dao, SHENG Li-long, . Experimental study of deformation characteristics of pebble cushion with furrow for immersed tunnel [J]. Rock and Soil Mechanics, 2019, 40(S1): 189-194.
[13] ZHANG Chen-yang, CHEN Min, HU Ming-jian, WANG Xin-zhi, TANG Jian-jian, . Effect of fine particles content on shear strength of calcareous sand [J]. Rock and Soil Mechanics, 2019, 40(S1): 195-202.
[14] ZHAI Ming-lei, GUO Bao-hua, WANG Chen-lin, JIAO Feng, . Compression-shear failure characteristics of rock with penetrated fracture under normal unloading condition [J]. Rock and Soil Mechanics, 2019, 40(S1): 217-223.
[15] WANG Huan, CHEN Qun, WANG Hong-xin, ZHANG Wen-ju, . Triaxial tests on fly ash with different compaction and matric suction [J]. Rock and Soil Mechanics, 2019, 40(S1): 224-230.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] TANG Ming-ming, WANG Zhi-yin, MA Lan-ping, ZENG Zhi-hua, ZHANG Zhi-pei. Study of design parameters of oil-gas pipeline traversing loess gully[J]. , 2010, 31(4): 1314 -1318 .
[2] ZHANG Guang-ming, LIU He, ZHANG Jin, WU Heng-an, WANG Xiu-xi. Mathematical model and nonlinear finite element equation for reservoir fluid-solid coupling[J]. , 2010, 31(5): 1657 -1662 .
[3] MEI Guo-xiong, LU Ting-hao, CHEN Hao, LI Zhi. True triaxial experiment of foundation pit considering initial stress[J]. , 2010, 31(7): 2079 -2082 .
[4] LIN Hang，CAO Ping，LI Jiang-teng，JIANG Xue-liang，HE Zhong-ming. Deformation stability of three-dimensional slope based on Hoek-Brown criterion[J]. , 2010, 31(11): 3656 -3660 .
[5] LI Jun-cai，JI Guang-qiang，SONG Gui-hua，ZHANG Qiong，WANG Zhi-liang，YAN Xiao-min. In-situ measurement and analysis of sparse pile-raft foundation of high-rise building[J]. , 2009, 30(4): 1018 -1022 .
[6] WEI Ning，LI Xiao-chun，WANG Yan，GU Zhi-meng. Resources quantity and utilization prospect of methane in municipal solid waste landfills[J]. , 2009, 30(6): 1687 -1692 .
[7] NIU Wen-jie，YE Wei-min，LIU Shao-gang，YU Hai-tao. Limit analysis of a soil slope considering saturated-unsaturated seepage[J]. , 2009, 30(8): 2477 -2482 .
[8] WANG Ke-liang, LIU Ling, SUI Tong-bo , XU Yun-hai, HU Ting-zheng. Experiment research on anti-shear(cut)performance of dam bedrock-rubber powder modified concrete in-situ[J]. , 2011, 32(3): 753 -756 .
[9] LIN Da-ming1,2，SHANG Yan-jun1，SUN Fu-jun3，SUN Yuan-chun1,2，WU Feng-bo1,2，LIU Zhi. Study of strength assessment of rock mass and application[J]. , 2011, 32(3): 837 -842 .
[10] DENG Dong-ping，LI Liang，ZHAO Lian-heng. A new method of sliding surface searching for general stability of slope based on Janbu method[J]. , 2011, 32(3): 891 -898 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd