Interpretation of the Failure of the Aznalcollar (Spain) Tailings Dam

被引:0
|
作者
Marti, Joaquin [1 ]
Riera, Francisco [2 ]
Martinez, Francisco [2 ]
机构
[1] Madrid Sch Mines, Rios Rosas 21, Madrid 28003, Spain
[2] Principia, Velazquez 94, Madrid 28006, Spain
关键词
Progressive failure; Brittle behaviour; Numerical modelling; SEVILLE;
D O I
10.1007/s10230-020-00712-8
中图分类号
TV21 [水资源调查与水利规划];
学科分类号
081501 ;
摘要
The mechanisms and causes of the sudden failure of the Aznalcollar tailings pond were investigated. The dam underwent displacements of up to 55 m along a 700 m length, releasing large quantities of acidic waters and 5.5 million m(3)of pyrite and pyroclastic tailings. It was a progressive type of failure, allowed by the brittle response of the pre-consolidated and cemented Guadalquivir blue clays and the high pore pressures left from the incomplete consolidation of the dam's foundation. Special modelling difficulties were posed by the need to incorporate the strain softening behaviour of the clays. The results show that although the timing of the failure could have been approximated using equivalent ductile properties, predicting the shallow, planar geometry of the failure surface observed would have required a precise representation of the brittle response. The failure triggered liquefaction of the tailings, which accelerated at more than 0.1 g. This transition was modelled by migrating from a coupled effective stress approach employing implicit integration to a total stress formulation using an explicit solver.
引用
收藏
页码:189 / 208
页数:20
相关论文
共 50 条
  • [41] Formation and evolution characteristics of dam breach and tailings flow from dam failure: an experimental study
    Sen Tian
    Xuanyan Dai
    Guangjin Wang
    Yiyu Lu
    Jie Chen
    Natural Hazards, 2021, 107 : 1621 - 1638
  • [42] Static liquefaction as a possible explanation for the Merriespruit tailings dam failure: Reply
    Fourie, AB
    Blight, GE
    Papageorgiou, G
    CANADIAN GEOTECHNICAL JOURNAL, 2002, 39 (06) : 1441 - 1442
  • [43] Scientometric analysis on the review research evolution of tailings dam failure disasters
    Wu, Menglong
    Ye, Yicheng
    Hu, Nanyan
    Wang, Qihu
    Tan, Wenkan
    ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2023, 30 (06) : 13945 - 13959
  • [44] Propagation network of tailings dam failure risk and the identification of key hazards
    Zhen, Zhixin
    Wu, Xu
    Ma, Bo
    Zhao, Huijie
    Zhang, Ying
    SCIENTIFIC REPORTS, 2022, 12 (01)
  • [45] Propagation network of tailings dam failure risk and the identification of key hazards
    Zhixin Zhen
    Xu Wu
    Bo Ma
    Huijie Zhao
    Ying Zhang
    Scientific Reports, 12
  • [46] Scientometric analysis on the review research evolution of tailings dam failure disasters
    Menglong Wu
    Yicheng YE
    Nanyan Hu
    Qihu Wang
    Wenkan Tan
    Environmental Science and Pollution Research, 2023, 30 : 13945 - 13959
  • [47] Static liquefaction as a possible explanation for the Merriespruit tailings dam failure: Discussion
    Brzezinski, LS
    CANADIAN GEOTECHNICAL JOURNAL, 2002, 39 (06) : 1439 - 1440
  • [48] A virtual geographic environment for dynamic simulation and analysis of tailings dam failure
    Yu, Dayu
    Tang, Liyu
    Ye, Fan
    Chen, Chongcheng
    INTERNATIONAL JOURNAL OF DIGITAL EARTH, 2021, 14 (09) : 1194 - 1212
  • [49] The slip surface mechanism of delayed failure of the Brumadinho tailings dam in 2019
    Zhu, Fangyuan
    Zhang, Wangcheng
    Puzrin, Alexander M.
    COMMUNICATIONS EARTH & ENVIRONMENT, 2024, 5 (01):
  • [50] Modelling the transport of tailings after Mount Polley tailings dam failure using multisource geospatial data
    Sreekumar, Uthra
    Rennie, Colin
    Mohammadian, Abdolmajid
    Nistor, Ioan
    Lovitt, Julie
    Zhang, Ying
    CANADIAN JOURNAL OF CIVIL ENGINEERING, 2022, 49 (12) : 1870 - 1884