Preliminary assessment of longitudinal deformation profiles for tunnels excavated in strain-softening rock masses

被引：0
|
作者：
Alejano, L. R. [1 ]
Rodriguez-Dono, A. [1 ]
Veiga, M. [1 ]
机构：
[1] Univ Vigo, Nat Resources & Environm Engn Dept, Vigo, Spain
来源：
ROCK MECHANICS IN CIVIL AND ENVIRONMENTAL ENGINEERING | 2010年
关键词：
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A proper selection of the distance to the face to install support is of paramount interest in tunneling. This selection can be based on the Longitudinal Deformation Profile (LDP), in the frame of the Convergence Confinement Method (CCM). However, obtaining the actual LDP of a tunnel is not a simple matter. Elastic approaches have been widely used in the past. Recently, new techniques accounting for perfect plasticity have been proposed. The aim of this study is to assess the influence of considering strain-softening behavior on the longitudinal deformation profiles for tunnels by means of simple numerical techniques. The obtained results show that the fact of accounting for strain-softening behavior does not significantly affect LDPs.
引用
收藏
页码：351 / 354
页数：4
相关论文
共 50 条
  • [1] Plastic radii and longitudinal deformation profiles of tunnels excavated in strain-softening rock masses
    Alejano, Leandro R.
    Rodriguez-Dono, Alfonso
    Veiga, Maria
    [J]. TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY, 2012, 30 : 169 - 182
  • [2] Analysis and modelling of longitudinal deformation profiles of tunnels excavated in strain-softening time-dependent rock masses
    Song, Fei
    Rodriguez-Dono, Alfonso
    Olivella, Sebastia
    Zhong, Zhen
    [J]. COMPUTERS AND GEOTECHNICS, 2020, 125
  • [3] Assessment of damage zone thickness and wall convergence for tunnels excavated in strain-softening rock masses
    Satici, Ozguer
    Topal, Tamer
    [J]. TUNNELLING AND UNDERGROUND SPACE TECHNOLOGY, 2021, 108
  • [4] A numerical large strain solution for circular tunnels excavated in strain-softening rock masses
    Zhang, Qiang
    Wang, Hong-Ying
    Jiang, Yu-Jing
    Lu, Meng-Meng
    Jiang, Bin-Song
    [J]. COMPUTERS AND GEOTECHNICS, 2019, 114
  • [5] Numerical Study on Large Deformation Characteristics of Tunnels Excavated in Strain-Softening Time-Dependent Rock Masses
    Yang, Kai
    Yan, Qixiang
    Su, Liufeng
    Zhang, Chuan
    Cheng, Yanying
    [J]. INTERNATIONAL JOURNAL OF GEOMECHANICS, 2024, 24 (11)
  • [6] Numerical solutions for tunnels excavated in strain-softening rock masses considering a combined support system
    Song, Fei
    Rodriguez-Dono, Alfonso
    [J]. APPLIED MATHEMATICAL MODELLING, 2021, 92 : 905 - 930
  • [7] Longitudinal Deformation Profiles for Sequentially Supported Deep Tunnels in Strain-Softening Hoek–Brown Rock Mass
    Vasileios I. Gkikas
    Pavlos P. Nomikos
    [J]. Geotechnical and Geological Engineering, 2021, 39 : 2239 - 2257
  • [8] Longitudinal Deformation Profiles for Sequentially Supported Deep Tunnels in Strain-Softening Hoek-Brown Rock Mass
    Gkikas, Vasileios I.
    Nomikos, Pavlos P.
    [J]. GEOTECHNICAL AND GEOLOGICAL ENGINEERING, 2021, 39 (03) : 2239 - 2257
  • [9] The ground response curve of underwater tunnels, excavated in a strain-softening rock mass
    Fahimifar, Ahmad
    Ghadami, Hamed
    Ahmadvand, Masoud
    [J]. GEOMECHANICS AND ENGINEERING, 2015, 8 (03) : 323 - 359
  • [10] Numerical solution for circular tunnel excavated in strain-softening rock masses considering damaged zone
    Li, Jinwang
    Shen, Caihua
    He, Xiufeng
    Zheng, Xiangtian
    Yuan, Jiaojiao
    [J]. SCIENTIFIC REPORTS, 2022, 12 (01)
12345