›› 2002, Vol. 23 ›› Issue (6): 717-720.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Simulation of nultiple shear bands in strain softening rock in plane strain

WANG Xue-bin 1, PAN Yi-shan 1, DING Xiu-li2, SHENG Qina2   

  1. 1. Dept. of Mechanics and Engineering Sciences, Liaoning Technical University, Fuxin 123000, China; 2. Yangtse River Scienctific Research Insitute, Wuhan 430007, China
  • Received:2001-09-06 Online:2002-12-10 Published:2016-09-04

PDF (PC)

670

Abstract: The influences of confining pressure, end constraint, height of specimen and interface on networks of shear bands are investigated numerically. Firstly, some factors including height of specimen, confining pressure, temperature, axial strain and different numerical methods were discussed. Secondly, the FLAC 3D was used to simulate planar multiple shear bands and friction angle and cohesion force were dependent on plastic strain. The conditions, under which the multiple shear bands tend to form, were discussed. As end constraint is strong and confining pressure exists, the multiple shear bands appear in the center of specimen. For weak end constraint, the multiple shear bands form in the end of the rock specimen and numbers of shear bands increases with height of specimen. For large normal and tangential rigidity, shear bands can penetrate old fault and propagate along their inherent directions and the form of networks of shear bands is very apparent. The results obtained agree with many experimental tests and can be used to explain some phenomena of shear strain localization in seism.

Key words: shear strain localization, multiple shear bands, confining pressure, end constraint, height of specimen, properties of interface

CLC Number: 

  • TU 452
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
[1] LIU Jia-shun, WANG Lai-gui, ZHANG Xiang-dong, LI Xue-bin, ZHANG Jian-jun, REN Kun, . Cyclic triaxial test on saturated silty clay under partial drainage condition with variable confining pressure [J]. Rock and Soil Mechanics, 2019, 40(4): 1413-1419.
[2] ZHOU Hui, SONG Ming, ZHANG Chuan-qing, LU Jing-jing, LIU Zhen-jiang, SHI Lin-ken, . Effect of confining pressure on mechanical properties of horizontal layered composite rock [J]. Rock and Soil Mechanics, 2019, 40(2): 465-473.
[3] HUANG Jue-hao, CHEN Jian, KONG Ling-zhi, LIU Fu-sheng, KE Wen-hui, QIU Yue-feng, , LI Jian-bin, . Experimental study of dynamic behaviors of saturated soft clay considering coupling effects of cyclic confining pressure and vibration frequency [J]. Rock and Soil Mechanics, 2019, 40(1): 173-182.
[4] WANG Peng-fei, LI Chang-hong, MA Xue-wen, LI Zi-jian, LIU Jing-jun, WU Yang-fan, . Experimental study of seepage characteristics of soil-rock mixture with different rock contents in fault zone [J]. Rock and Soil Mechanics, 2018, 39(S2): 53-61.
[5] SHENG Yun-feng, CHEN Yuan, ZHOU Wei, MA Gang, CHANG Xiao-lin, . Dynamic response analysis of rockfill dam based on modified dynamic shear modulus model [J]. Rock and Soil Mechanics, 2018, 39(S2): 405-414.
[6] ZHANG Tian-jun, SHANG Hong-bo, LI Shu-gang, WEI Wen-wei, BAO Ruo-yu, PAN Hong-yu，. Permeability tests of fractured sandstone with different sizes of fragments under three-dimensional stress states [J]. , 2018, 39(7): 2361-2370.
[7] DONG Xi-hao, YANG Geng-she, TIAN Jun-feng, RONG Teng-long, JIA Hai-liang, LIU Hui,. Characteristics of deformation properties of frozen sandstone under lateral unloading condition [J]. , 2018, 39(7): 2518-2526.
[8] ZHAI Shu-fang, ZHOU Xiao-ping, BI Jing, . Numerical study of rock fragmentation by TBM cutters using general particle dynamics (GPD) [J]. , 2018, 39(7): 2699-2707.
[9] LIU Chao, ZHANG Dong-ming, SHANG De-lei, ZHAO Hong-gang,SONG Zhen-long, YU Huan, . Influence of confining pressure unloading at post-peak on deformation and permeability characteristics of raw coal [J]. , 2018, 39(6): 2017-2024.
[10] ZHANG Chao, CAO Wen-gui, XU Zan, HE Min,. Initial macro-deformation simulation and determination method of micro-crack closure stress for rock [J]. , 2018, 39(4): 1281-1288.
[11] WANG Chun, TANG Li-zhong, CHENG Lu-ping, CHEN Yuan, LIU Tao, WEI Yong-heng, . 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): 4537-4546.
[12] LIU Chao, HUANG Gun, ZHAO Hong-gang, SONG Zhen-long, ZHANG Chi, YU Huan, . Tests on mechanical and permeability characteristics of raw coal under complex stress paths [J]. , 2018, 39(1): 191-198.
[13] MA Lin-jian, YANG Fa, WANG Ming-yang, LI Zeng, . Generalized Hoek-Brown dynamic strength criterion incorporating strain rate effect [J]. , 2017, 38(S2): 27-32.
[14] XU Jiang, MA Tian-yu, OKUBO Seisuke, PENG Shou-jian, TANG Yang, CHEN Can-can, WANG Zhe. Experimental study of generalized stress relaxation characteristics of rock under different confining pressures [J]. , 2017, 38(S2): 57-66.
[15] LIU Zhi-bin, ZHANG Guang-qing, YAN Xiao-he, YANG Xiao, DONG Hao-ran, XU Sheng-fan,. Effect of low pore pressure zone around crack front on rock fracture properties [J]. , 2017, 38(S2): 75-81.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] LI Shao-long, ZHANG Jia-fa, ZHANG Wei, XIAO Li. Study of spatial variability and stochastic modeling of surface soil permeability[J]. , 2009, 30(10): 3168 -3172 .
[2] LEI Hua-yang, JIANG Yan, LU Pei-yi, MA Zhan-qiang, SI Jing-cheng. Experimental study of dynamic constitutive relation of structural soft soils under traffic loading[J]. , 2009, 30(12): 3788 -3792 .
[3] CHENG Tao, YAN Ke-qin. Numerical simulation for influences of stress paths on earth's surface deformation[J]. , 2010, 31(2): 661 -666 .
[4] MI Hai-zhen, GAO Chun. Experimental study of expansive behaviors of quicklime[J]. , 2010, 31(4): 1253 -1256 .
[5] HE Xian-long, ZHAO Li-zhen. Analysis of shear wave velocity based on multiple cross-correlation functions[J]. , 2010, 31(8): 2541 -2545 .
[6] FAN Peng-xian，WANG Ming-yang，LI Wen-pei，CHEN Ming-xiong. Time effect of stress and deformation of surrounding rock of circular tunnels during unloading[J]. , 2010, 31(S1): 28 -34 .
[7] ZHANG Yu-cheng, YANG Guang-hua, JIANG Yan, YAO Jie, SHI Yong-sheng. Numerical simulation analysis of influence of blasting construction of foundation trench of immersed tunnel on stability of embankment[J]. , 2010, 31(S1): 349 -356 .
[8] XIAO Lin, YANG Cheng-kui, HU Zeng-hui, LI Xiao-zhao, LI Mo. Model test on temperature distribution in metro tunnel surrounding rock and inverse calculation of its thermal conductivity[J]. , 2010, 31(S2): 86 -91 .
[9] DONG Tian-wen, LIANG Li, HUANG Lian-zhuang, WANG Ming-shu. Pullout test of screw pile foundation[J]. , 2009, 30(1): 186 -190 .
[10] YAO Hua-yan, FENG Xia-ting, CUI Qiang, SHEN Lin-fang, ZHOU Hui, CHENG Chang. Experimental study of effect of chemical corrosion on strength and deformation of hard brittle limestone[J]. , 2009, 30(2): 338 -344 .
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