The Aznalcóllar Tailings Dam Accident - A Case Study
2000; World Scientific; Volume: 9; Issue: 1 Linguagem: Inglês
10.1016/s0950-6098(00)00011-1
ISSN2047-606X
Autores Tópico(s)Tailings Management and Properties
ResumoMineral Resources EngineeringVol. 09, No. 01, pp. 101-118 (2000) No AccessTHE AZNALCÓLLAR TAILINGS DAM ACCIDENT — A CASE STUDYROBERT K. McDERMOTT and JOHN M. SIBLEYROBERT K. McDERMOTTSuite 3800, Royal Bank Plaza South Tower, Toronto, Ontario, Canada M5J 2J7, CanadaPartner, McMillan Binch, Lawyers and JOHN M. SIBLEY3000 Royal Centre, 1055 West Georgia Street, Vancouver, British Columbia, Canada V6E 3R3, CanadaPartner, Bull, Housser & Tupper, Lawyershttps://doi.org/10.1142/S0950609800000111Cited by:18 PreviousNext AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack CitationsRecommend to Library ShareShare onFacebookTwitterLinked InRedditEmail AbstractThe Aznalcóllar tailings dam owned by Boliden Apirsa failed on April 25, 1998, releasing approximately 1.3 million cubic metres of fine pyrite tailings and 5.5 million cubic metres of tailings water into the nearby river systems. Approximately 2,600 hectares of river banks and agricultural land were affected by tailings deposition and an additional 2,000 hectares were affected by tailings water.Apirsa closed the breach in the dam within one day and within a week commenced tailings removal. Responsibility for the clean-up was divided between Apirsa and the Spanish authorities. By the end of November 1998, Apirsa had completed the clean-up in its sector, an area containing 80% of the discharged tailings.A consultant engaged by Apirsa, Eptisa, concluded that the failure occurred as a result of a 60 metre lateral displacement along a bedding plane in a blue marl clay formation some 14 metres below the dam. Another Apirsa consultant, Principia-EQE, concluded that several deficiencies in the work carried out by the designers of the dam in 1978 and by the independent consultants who studied the stability of the dam in 1996 contributed to the failure.In responding to the accident, Apirsa positioned itself as part of the solution, taking an open and proactive posture in its dealings with the media, the general public and the Spanish authorities. Apirsa built support for its environmental assessment and remediation activities by subjecting its plans to external scientific peer review and applying principles of continuous improvement to their implementation. Apirsa's response to the accident can usefully serve as a model for others faced with adverse circumstances of the magnitude of the failure of the Aznalcóllar tailings dam. FiguresReferencesRelatedDetailsCited By 18Health risk assessment and cost–benefit analysis of agricultural soil remediation for tailing dam failure in Jinding mining area, SW ChinaZhongyu Xu, Lisa Ito, Leticia Sarmento dos Muchangos and Akihiro Tokai13 December 2022 | Environmental Geochemistry and Health, Vol. 8Model test of a geogrid-reinforced tailing accumulation damChangbo Du, Ben Niu, Fu Yi and Lidong Liang15 October 2022 | Bulletin of Engineering Geology and the Environment, Vol. 81, No. 11Multiscale Investigations of Overtopping Erosion in Reinforced Tailings Dam Induced by Mud-Water Mixture OverflowMeibao Chen, Xiaofei Jing, Xiaohua Liu, Xuewei Huang and Wen Nie et al.10 Oct 2022 | Geofluids, Vol. 2022Anomaly identification of monitoring data and safety evaluation method of tailings damKai Dong, Dewei Yang, Jihao Yan, Jinbao Sheng and Zhankuan Mi et al.13 September 2022 | Frontiers in Earth Science, Vol. 10Revisiting the Hydraulics of the Aznalcóllar Mine DisasterMarcos Sanz-Ramos, Ernest Bladé, Josep Dolz and Martí Sánchez-Juny31 March 2022 | Mine Water and the Environment, Vol. 41, No. 2Comprehensive Diagnosis Method of the Health of Tailings Dams Based on Dynamic Weight and Quantitative IndexKai Dong, Zhankuan Mi and Dewei Yang6 March 2022 | Sustainability, Vol. 14, No. 5Effects of Geosynthetic Reinforcement on Tailings Accumulation DamsChangbo Du, Lidong Liang, Fu Yi and Ben Niu22 October 2021 | Water, Vol. 13, No. 21Catastrophic mass flows resulting from tailings impoundment failuresNahyan M. 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