›› 2011, Vol. 32 ›› Issue (7): 2066-2072.

• Geotechnical Engineering • Previous Articles     Next Articles

Uniqueness of displacement back analysis of a circular tunnel in transversely isotropic rock mass

ZHANG Zhi-zeng1, 2，LI Zhong-kui2   

  1. 1. School of Civil Engineering and Architecture，Zhongyuan University of Technology，Zhengzhou 450007, China; 2. Department of Hydraulic and Hydropower Engineering, Tsinghua University, Beijing 100084, China
  • Received:2009-10-11 Online:2011-07-10 Published:2011-06-30

PDF (Chinese)

1585

Abstract: Uniqueness research is one of the basic theories of displacement back analysis. The displacement analytic solution of a deep circular tunnel in transversely isotropic rock mass is deduced firstly; and then the uniqueness of displacement back analysis of a circular tunnel in transversely isotropic rock mass is discussed by means of identifiability conditions. The results indicate: all of 6 parameters can't be determined simultaneously no matter how many the measuring points are set; only when there are at least 3 known parameters, may the other parameters be determined simultaneously; whether the vertical ground stress component is equal to the horizontal one has obvious influence on the results；in the aspect of identifiability, two ground stress components have the best effect, elastic modulus and Poisson ratio on the isotropic plane take the second place, and elastic modulus and Poisson ratio in the direction vertical to the isotropic plane have the worst effect.

Key words: rock mechanics, transverse isotropy, displacement analytic solution, back analysis, uniqueness

CLC Number: 

  • TD 313
[1] ZHANG Yan-bo, SUN Lin, YAO Xu-long, LIANG Peng, TIAN Bao-zhu, LIU Xiang-xin, . Experimental study of time-frequency characteristics of acoustic emission key signals during granite fracture [J]. Rock and Soil Mechanics, 2020, 41(1): 157-165.
[2] SEISUKE Okubo, TANG Yang, XU Jiang, PENG Shou-jian, CHEN Can-can, YAN Zhao-song, . Application of 3D-DIC system in rock mechanic test [J]. Rock and Soil Mechanics, 2019, 40(8): 3263-3273.
[3] MA Qiu-feng, QIN Yue-ping, ZHOU Tian-bai, YANG Xiao-bin. Mechanical properties and constitutive model of porous rock under loading and unloading [J]. Rock and Soil Mechanics, 2019, 40(7): 2673-2685.
[4] TIAN Jun, LU Gao-ming, FENG Xia-ting, LI Yuan-hui, ZHANG Xi-wei. Experimental study of the microwave sensitivity of main rock-forming minerals [J]. Rock and Soil Mechanics, 2019, 40(6): 2066-2074.
[5] JIN Jun-chao, SHE Cheng-xue, SHANG Peng-yang. A nonlinear creep model of rock based on the strain softening index [J]. Rock and Soil Mechanics, 2019, 40(6): 2239-2246.
[6] SU Guo-shao, YAN Si-zhou, YAN Zhao-fu, ZHAI Shao-bin, YAN Liu-bin, . Evolution characteristics of acoustic emission in rockburst process under true-triaxial loading conditions [J]. Rock and Soil Mechanics, 2019, 40(5): 1673-1682.
[7] WANG Yu, AI Qian, LI Jian-lin, DENG Hua-feng, . Damage characteristics of sandstone under different influence factors and its unloading failure meso-morphology properties [J]. Rock and Soil Mechanics, 2019, 40(4): 1341-1350.
[8] LI Xiao-zhao, QI Cheng-zhi, SHAO Zhu-shan, QU Xiao-lei, . Micromechanics-based model study of shear properties of brittle rocks [J]. Rock and Soil Mechanics, 2019, 40(4): 1358-1367.
[9] CHEN Wei-zhong, LI Fan-fan, MA Yong-shang, LEI Jiang, YU Hong-dan, XING Tian-hai, ZHENG You-lei, JIA Xiao-dong, . Development of a parallel-linkage triaxial testing machine for THM coupling in soft rock [J]. Rock and Soil Mechanics, 2019, 40(3): 1213-1220.
[10] ZHENG Guang-hui, XU Jin-yu, WANG Peng, FANG Xin-yu, WANG Pei-xi, WEN Ming, . Physical characteristics and degradation model of stratified sandstone under freeze-thaw cycling [J]. Rock and Soil Mechanics, 2019, 40(2): 632-641.
[11] LI Xiao-zhao, SHAO Zhu-shan, QI Cheng-zhi, . Study on rock crack damage and confining pressure effects on shear fracture band [J]. Rock and Soil Mechanics, 2019, 40(11): 4249-4258.
[12] JIN Jun-chao, SHE Cheng-xue, SHANG Peng-yang. Study on strength parameters and dilation angle evolution models in hard rock elasto-plastic deformation and failure process [J]. Rock and Soil Mechanics, 2019, 40(11): 4401-4411.
[13] LI Lian-xiang, LIU Jia-dian, LI Ke-jin, HUANG Heng-li, JI Xiang-kai, . Study of parameters selection and applicability of HSS model in typical stratum of Jinan [J]. Rock and Soil Mechanics, 2019, 40(10): 4021-4029.
[14] MA Peng-fei, LI Shu-chen, ZHOU Hui-ying, ZHAO Shi-sen. Simulations of crack propagation in rock-like materials using modified peridynamic method [J]. Rock and Soil Mechanics, 2019, 40(10): 4111-4119.
[15] SONG Hong-qiang, ZUO Jian-ping, CHEN Yan, LI Li-yun, HONG Zi-jie, . Revised energy drop coefficient based on energy characteristics in whole process of rock failure [J]. Rock and Soil Mechanics, 2019, 40(1): 91-98.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] LI Ying-yong，ZHANG Ding-li，ZHANG Hong-bo，SONG Xiu-guang. Research on failure mechanism and effects of prestressed anchor cables for reinforcing slopes[J]. , 2010, 31(1): 144 -150 .
[2] LI Jing，MIAO Lin-chang，ZHONG Jian-chi，FENG Zhao-xiang. Deformation and damping characteristics of EPS beads-mixed lightweight soil under repeated load-unloading[J]. , 2010, 31(6): 1769 -1775 .
[3] LIANG Jian-wei, FANG Ying-guang, GU Ren-guo. Analysis of microelectric field effect of seepage in tiny-particle clay[J]. , 2010, 31(10): 3043 -3050 .
[4] WANG Li-yan，JIANG Peng-ming，LIU Han-long. Mechanism analysis of residual liquefied deformation of breakwater during earthquake[J]. , 2010, 31(11): 3556 -3562 .
[5] LI Xiu-zhen，WANG Cheng-hua，DENG Hong-yan. A comparison of distance and Fisher discrimination methods applied to identifying potential landslides[J]. , 2011, 32(1): 186 -192 .
[6] JI Wu-jun. Investigation and analysis of engineering problems for loess tunnels[J]. , 2009, 30(S2): 387 -390 .
[7] CHEN Li-hua , LIN Zhi , LI Xing-ping. Study of efficacy of systematic anchor bolts in highway tunnels[J]. , 2011, 32(6): 1843 -1848 .
[8] CHEN Li-wen, SUN De-an. Bifurcation analysis of overconsolidated clays with soil-water coupling along different stress paths[J]. , 2011, 32(10): 2922 -2928 .
[9] ZHENG Gang ZHANG Li-ming DIAO Yu. Analysis of working performance of piles beneath excavation bottom and settlement calculation[J]. , 2011, 32(10): 3089 -3096 .
[10] ZHAO Ming-hua, LEI Yong, ZHANG Rui. Study of punching failure mode and safe thickness of pile foundation in karst region[J]. , 2012, 33(2): 524 -530 .
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