Long-term Risk of Tailings Dam Failure
Tailings dams differ from water supply reservoir dams in two significant ways—dam-life design, and dam-construction design. First, unlike a dam built for impounding water, which can ultimately be drained if the structural integrity …
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Five years after Brumadinho: New research unveils …
On 25 January 2019, a tailings dam at the Córrego do Feijão iron ore mine in Brumadinho, Brazil, failed suddenly without warning. Two hundred and seventy people were killed as 9.7Mm3 of stored tailings were released, …
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Physical Modeling of Tailings Dams in China: A Review
A tailings dam is the peripheral structure of the tailings pond, which is used to intercept the tailings and impound water in the reservoir. In the past hundred years, the dam break rate of the 18401 tailings reservoirs in the world is about 1.2%, which is 120 times the rate at which traditional water-retaining dams break [ 1 ].
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Global magnitude-frequency statistics of the failures and impacts …
An impoundment of tailings and, in many cases, supernatant ponds (i.e. wastewater). The present study considers a TSF to include the tailings dam, the impounded tailings, the ponded water and appurtenant structures. Tailings dam: A constructed embankment that is designed to have sufficient geotechnical integrity to impound tailings in perpetuity.
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Watch Out for the Tailings Pond, a Sharp Edge Hanging over Our …
A catastrophic tailings dam failure disaster occurred in Brumadinho, Brazil on 25 January 2019, which resulted in over 270 casualties, 24,000 residents evacuated, and a huge economic loss. Environmental concerns were raised for the potential pollution of water due to tailings waste entering the Paraopeba River. In this paper, a detailed analysis has been carried out to …
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Retrospective monitoring of slope failure event of tailings dam …
Interferometric synthetic aperture radar (InSAR) has been effectively used to monitor surface deformation in a mining area with millimeter-level accuracy. On March 27, 2022, a tailings dam failure occurred in Shanxi Province, China, causing significant damage to surrounding houses, woodland, and roads below the tailings pond. We obtained the surface …
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The 2019 Brumadinho tailings dam collapse: Possible cause and …
The regions classified as "Bare soil" (11 %) mostly result from mining activities. The tailings dam represents 13 % of the mapped area. The high difference in altitude between the tailings dam and the Paraopeba River (> 200 m as shown in Fig. 8 b) and the moderate roughness of the terrain (Fig. 8 d) accelerated the mud-flow. The affected ...
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Monitoring the Vulnerability of the Dam and Dikes in Germano …
The Fundão tailings dam in the Germano iron mining complex (Mariana, Brazil) collapsed on the afternoon of 5 November 2015, and around 32.6 million cubic meters of mining waste spilled from the ...
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Mine tailings dams: Characteristics, failure, environmental impacts
To set the scene, we first describe the characteristics of tailings and of construction of tailings dams, and the common causes of their failure. We conclude with a discussion of …
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Seepage field characteristic and stability analysis of tailings dam
The initial dam of that tailings reservoir was the compacted rockfill seepage dam, with the dam height of 32.0 m. ... and dikes in germano iron mining area after the collapse of the tailings Dam ...
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Tailings Dams: Where Mining Waste is Stored Forever
"There's quite a long list of recent tailings dam failures of dams that were built with modern technology," said Ron Cohen, a professor at the Colorado School of Mines, told us. Here are ...
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A Comprehensive Review on Reasons for Tailings …
Consequently, the mining of mineral resources results in the production and accumulation of a large number of tailings, causing many problems with respect to mining, the environment, and the economy.
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Mine tailings dams' failures: serious environmental impacts, …
The tailings plume completely compromised the Doce River, making it the worst environmental disaster in Brazil (dos Reis et al., 2019) and the largest in the world involving …
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Geotechnical Evaluations of a Tailings Dam for Use by a …
The total area for the proposedproject is approximately 12 square kilometers and the estimated material to be ... for the tailings dam are south of the mine. Depending on the site chosen for the dam, construction will consist of one of three ... an increased storage capacity in the tailings pond reservoir. Each of the dam construction methods ...
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Study on the Evolution of Tailings Dam Break Disaster under
In response to the challenges posed by rapid development, the wide-ranging disaster impact, and the untimely warning of debris flow resulting from tailing dam failure, it is of great significance to study the mechanism of dam failure as well as the evolution law and affected area of debris flow for effective disaster prediction and risk assessment. We developed a 1:150 …
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A Comprehensive Review on Reasons for Tailings Dam Failures …
The stress field and the seepage field in tailings reservoir change, leading to the instability of the dam. The following reasons explained for the resulting failure: (1) the seepage field directly induces instability of the tailings dam (seepage and internal erosion); (2) the instability of the tailings dam foundation (poor foundation conditions); (3) flooding that causes the tailings dam ...
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Fundão tailings dam failures: the environment tragedy of the …
Fig. 1. Fundão dam. (A) Formation of sandy tailings beach 300 m wide and upstream mud deposition, highlighting the critical limit of contact between sandy tailings and sludge (orange line), image of 2011. (B) Retreated axis for emergency works in a concrete gallery brings the crest closer to the critical limit of contact between sandy tailings and sludge (red dashed arrow), …
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Tailings Dam
Mining waste utilization: case studies and good practices. Liyuan Wu, ... Yulin Pan, in Managing Mining and Minerals Processing Wastes, 2023. 12.2.2 Tailings dam construction. Tailings dam construction is mainly divided into three approaches: upstream method, the middle flow method, and the downline method. The Dexing Copper Mine #4 tailings pond adopts the …
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Assessment of Environmental Pollution and Risks Associated …
Tailings are a significant concern due to their potential release of toxic elements into the environment, posing risks to ecosystems and human health. Therefore, understanding their polluting potential is crucial for effective mitigation strategies. This study evaluates the contaminating potential of eight tailing dams in the upper basin of the Puyango River in …
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Numerical Simulation of Seepage and Stability of …
Tailings dams are built to safely store tailings and to protect the natural environment from damage. However, tailings dam accidents occur frequently, endangering the safety of life and property, and causing pollution to …
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Mining Tailings and Dam Failures in Latin American Mining …
Failures of tailings dams have caused terrible disasters for both environment and people, as found by Piciullo et al. ().According to the various tailings dam databases reviewed, …
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(PDF) Detection of Tailings Dams Using High-Resolution Satellite
The timely and accurate mapping and monitoring of mine tailings dams is crucial to the improvement of management practices by decision makers and to the prevention of disasters caused by failures ...
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Florida faces imminent collapse of giant phosphate mine pond
Some previous effort in that direction includes the World Mine Tailings Failures, an online database that aims at exposing the cause of tailing dams disasters, giving direction on how to prevent them.
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Dynamic characteristics of tailings reservoir under seismic load
The tailings reservoir is a major hazard source in metal and nonmetal mines (Papageorgiou et al. 1997; Zhang et al. 2006; He et al. 2009; Özer and Bromwell 2012; Yang et al. 2015).According to the statistical analysis by the World Commission on Dams (ICOLD), since the beginning of twentieth century, more than 200 cases of tailing accidents have been recorded, …
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SBAS-InSAR Based Deformation Monitoring of …
The No.4 tailings pond of the Dexing Copper Mine is the second largest in Asia. The tailing pond is a dangerous source of man-made debris flow with high potential energy. In view of the lack of effective and low-cost global …
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Global-scale impact analysis of mine tailings dam failures: …
Tailings dams are built to ensure that the tailings are safely stored to protect the natural environment from degradation. When tailings dams leak and spill the tailings into the surrounding environment, the resulting effects greatly and negatively impact the planet, profits, and people—commonly called the triple bottom line (Byrne et al., 2018, Carmo et al., 2017, …
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Stability Analysis of Downstream Dam Expansion Tailings Pond
The stability of the tailings reservoir after expansion was calculated using the traditional dynamic and static stability solution method and taking into account the unpredictability of dam ...
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Eight years after the Fundão tailings dam collapse: chaos on …
The dam breach unleashed a cascade of health and social woes for people living in the area. High levels of heavy metals were found in the blood and urine of riverside populations (Paulelli et al. 2022).There was an increase in diseases arising from habitat degradation, when people are exposed to mosquitoes, such as dengue's transmitters, as well as enteric pathogens in the …
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Past, Present, and Future of Copper Mine Tailings Governance in …
How mine tailings storage facilities (TSF) are managed reflects the history, regulatory framework, and environment of a country and locale of the mine. Despite many attempts to find an environmentally friendly strategy for tailings management and governance that balances the needs of society and the ecosystem, there is no worldwide agreement regarding …
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Tailings Dams Harm and Risk of Failure | Southeast …
Mine tailings dams are some of the world's largest man-made structures. The risk of catastrophic failures is increasing as the global demand for metals grows, ore grades decline, and the amount of associated mine waste increases.
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