A numerical investigation on hydro-mechanical behaviour of a high centreline tailings dam

被引:8
作者
Naeini, M. [1 ]
Akhtarpour, A. [2 ]
机构
[1] Ferdowsi Univ Mashhad, Azadi Sq, Mashhad, Khorasan Razavi, Iran
[2] Ferdowsi Univ Mashhad, Fac Engn, Dept Civil Engn, Mashhad, Iran
关键词
tailings dam; centreline method; coupled hydro-mechanical analysis; staged construction; WATER-RETENTION CURVE; STAGED CONSTRUCTION; STABILITY; MODEL; PARAMETERS;
D O I
10.17159/2309-8775/2018/v60n3a5
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The high rate of failure in tailings dams reflects the inadequacy of conventional stability and seepage analyses for evaluating their performance, especially during construction. In this article, the hydro-mechanical behaviour of a high centreline tailings dam during staged construction is evaluated by coupled stress-pore pressure analyses. The effects of factors such as foundation permeability, raising rate, anisotropic permeability of slimes and changes in the slope of dykes on the structural response are investigated. In these analyses, a combination of realistic conditions, including saturated-unsaturated seepage of materials, consolidation and loading due to staged construction are simulated using SIGMA/W software. The results of this study indicate that foundation permeability and anisotropic permeability of slimes have a significant influence on development of pore pressure in impoundment, while changing the downstream slope of dykes causes substantial displacements.
引用
收藏
页码:49 / 60
页数:12
相关论文
共 50 条
  • [11] Coupled Hydro-Mechanical Behaviour of Rock Joints During Normal and Shear Loading
    Pirzada, M. A.
    Bahaaddini, M.
    Andersen, M. S.
    Roshan, H.
    ROCK MECHANICS AND ROCK ENGINEERING, 2023, 56 (02) : 1219 - 1237
  • [12] Influence of different strain rates on hydro-mechanical behaviour of reconstituted unsaturated soil
    Wu, Shengshen
    Zhou, Annan
    Shen, Shui-Long
    Kodikara, Jayantha
    ACTA GEOTECHNICA, 2020, 15 (12) : 3415 - 3431
  • [13] Static and Coupled Hydro-mechanical Analyses of Concrete Gravity Dam Resting on Jointed Rock Foundation
    Rampal, Ajay
    Halder, Prasun
    Manna, Bappaditya
    Sharma, K. G.
    GEOTECHNICAL AND GEOLOGICAL ENGINEERING, 2020, 38 (04) : 4111 - 4127
  • [14] Static and Coupled Hydro-mechanical Analyses of Concrete Gravity Dam Resting on Jointed Rock Foundation
    Ajay Rampal
    Prasun Halder
    Bappaditya Manna
    K. G. Sharma
    Geotechnical and Geological Engineering, 2020, 38 : 4111 - 4127
  • [15] Unsaturated hydro-mechanical behaviour of rainfall-induced mass remobilization in post-earthquake landslides
    Yang, Zongji
    Qiao, Jianping
    Uchimura, Taro
    Wang, Lin
    Lei, Xiaoqin
    Huang, Dong
    ENGINEERING GEOLOGY, 2017, 222 : 102 - 110
  • [16] Investigation on Shear Wave Velocity and Triaxial Mechanical Performance of Tailings Core from Tailings Dam
    Luo, Pengfei
    ADVANCES IN CIVIL ENGINEERING, 2021, 2021
  • [17] Numerical examination of high-pressure fuel injection in common rail injector based on hydro-mechanical model
    Zhang, Zhuo
    Shi, Ji-Wei
    Cheng, Xu-Liang
    Dai, Yan-Jun
    Tao, Wen-Quan
    PHYSICS OF FLUIDS, 2022, 34 (05)
  • [18] Coupled hydro-mechanical analysis of a dam foundation with thick fluvial deposits: a case study of the Danba Hydropower Project, Southwestern China
    Wang, Min
    Chen, Yi-Feng
    Hu, Ran
    Liu, Wu
    Zhou, Chuang-Bing
    EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING, 2016, 20 (01) : 19 - 44
  • [19] Numerical simulation of gas injection induced hydro-Mechanical coupling and damage in COx claystone
    Yu, Zhan
    Shao, Jian-Fu
    Duveau, Gilles
    Vu, Minh-Ngoc
    Plua, Carlos
    GEOMECHANICS FOR ENERGY AND THE ENVIRONMENT, 2025, 41
  • [20] Fluid-driven cracking behavior of coal with prefabricated plane: A particle-based hydro-mechanical coupled numerical investigation
    Lu, Yiyu
    Huang, Shan
    Ge, Zhaolong
    Zhou, Zhe
    Song, Zhengyang
    THEORETICAL AND APPLIED FRACTURE MECHANICS, 2023, 124