scholarly journals Overtopping Failure of a Reinforced Tailings Dam: Laboratory Investigation and Forecasting Model of Dam Failure

Water ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 315 ◽  
Author(s):  
Xiaofei Jing ◽  
Yulong Chen ◽  
David Williams ◽  
Marcelo Serna ◽  
Hengwei Zheng
Keyword(s):  
Loss Rate ◽  
Dam Failure ◽  
Forecasting Model ◽  
Tailings Dam ◽  
Dam Breach ◽  
Loss Of Life ◽  
Physical Model Tests ◽  
Significant Damage ◽  
Overtopping Failure ◽  
Overtopping Erosion

Overtopping failure of reinforced tailings dam may cause significant damage to theenvironment and even loss of life. In order to investigate the feature of overtopping of the reinforcedtailings dam, which has rarely appeared in the literature, the displacement, the phreatic level and theinternal stress of dam during overtopping were measured by a series of physical model tests. Thisstudy conclusively showed that, as the number of reinforcement layers increased, the anti-erosioncapacity of tailings dam was notably improved. It could be supported by the change of the dimensionof dam breach, the reduction of stress loss rate, and the rise of phreatic level from the tests. Based onthe erosion principle, a mathematical model was proposed to predict the width of the tailings dambreach, considering the number of reinforcement layers. This research provided a framework for theexploration of the overtopping erosion of reinforced tailings dam, and all presented expressions couldbe applied to predict the development of breach during overtopping.

Predict Research for Loss of Life Due to Dam Breach for Guangxi Luocheng Kama Reservoir

2011 ◽  
Vol 243-249 ◽  
pp. 3877-3882
Author(s):  
Rong Yong Ma ◽  
Xiang Chen ◽  
Lei Lei Yang ◽  
Xiao Qing Zhang
Keyword(s):  
Calculation Result ◽  
Dam Break ◽  
Dam Failure ◽  
Suitable Model ◽  
Actual Situation ◽  
Dam Breach ◽  
Loss Of Life ◽  
At Home

In this paper，the basic situation of Guangxi luocheng Kama reservoir and the potential dangers are introduced firstly, and then，different models often used to estimate the loss of life in dam failure at home and abroad are introduced and analysed.Based on the above, a suitable model for national actual situation is chosen to predict the loss due to this reservoir dam breach，and the severity according to the calculation result of assuming Kama reservoir dam-break is assessed. Finally, the relevant departments’s measures of rescuing and evacuating downstream masses etc. at danger in 2009 are proved to be correct，necessary and timely.

scholarly journals Modelling the Brumadinho tailings dam failure, the subsequent loss of life and how it could have been reduced

2021 ◽  
Vol 21 (1) ◽  
pp. 21-37
Author(s):  
Darren Lumbroso ◽  
Mark Davison ◽  
Richard Body ◽  
Gregor Petkovšek
Keyword(s):  
Mining Waste ◽  
Dam Failure ◽  
Tailings Dam ◽  
Agent Based Model ◽  
Emergency Plans ◽  
Loss Of Life ◽  
Agent Based ◽  
Agent Based Modelling ◽  
Tailings Dams ◽  
Subsequent Loss

Abstract. In recent years the number of tailings dams failures has increased. On 25 January 2019, the Brumadinho tailings dam in Brazil suddenly failed, releasing a mudflow over 10 m deep comprising some 107 m3 of mining waste which killed between 270 and 320 people. This paper details the use of an agent-based model, known as the Life Safety Model (LSM), to estimate the risk to people downstream of the Brumadinho tailings dam and to assess if the number of fatalities could have been reduced if a warning had been received prior to or at time the dam failed. The LSM modelling indicates that even if a warning had been issued as the dam failed, the number of fatalities could have been reduced. Agent-based modelling tools such as the LSM can help to inform and improve emergency plans for tailings dams, which will help to reduce the risks posed by them in the future.

scholarly journals Modelling the Brumadinho tailings dam failure, the subsequent loss of life and how it could have been reduced

2020 ◽  
Author(s):  
Darren Lumbroso ◽  
Mark Davison ◽  
Richard Body ◽  
Gregor Petkovšek
Keyword(s):  
Mining Waste ◽  
Dam Failure ◽  
Tailings Dam ◽  
Agent Based Model ◽  
Emergency Plans ◽  
Loss Of Life ◽  
Agent Based ◽  
Agent Based Modelling ◽  
Tailings Dams ◽  
Subsequent Loss

Abstract. In recent years the number of tailings dams failures has increased. On 25 January 2019, the Brumadinho tailings dam in Brazil suddenly failed releasing a mudflow over 10 m deep comprising some 10 million m3 of mining waste which killed between 270 and 320 people. This paper details the use of an agent-based model, known as the Life Safety Model (LSM), to estimate the risk to people downstream of the Brumadinho tailings dam and to assess if the number of fatalities could have been reduced if a warning had been received prior to or at time the dam failed. The LSM modelling indicates that even if a warning had been issued as the dam failed the number of fatalities could have been reduced. Agent-based modelling tools such as the LSM can help to inform and improve emergency plans for tailings dams, which will help to reduce the risk posed by them in the future.

POLYGON WALL BOUNDARY MODEL IN PARTICLE-BASED METHOD: APPLICATION TO BRUMADINHO TAILINGS DAM FAILURE

2019 ◽  
Author(s):  
Rubens Augusto Amaro Junior ◽  
Lucas Soares Pereira ◽  
Liang-Yee Cheng ◽  
Ahmad Shakibaeinia
Keyword(s):  
Dam Failure ◽  
Tailings Dam ◽  
Wall Boundary ◽  
Boundary Model ◽  
Polygon Wall Boundary Model

scholarly journals The tailings dam failure of 5 November 2015 in SE Brazil and its preceding seismic sequence

2016 ◽  
Vol 43 (10) ◽  
pp. 4929-4936 ◽  
Author(s):  
H. Agurto‐Detzel ◽  
M. Bianchi ◽  
M. Assumpção ◽  
M. Schimmel ◽  
B. Collaço ◽  
...  
Keyword(s):  
Dam Failure ◽  
Tailings Dam ◽  
Seismic Sequence ◽  
Se Brazil

CDA technical bulletin on tailings dam breach analyses

2019 ◽  
pp. 3484-3498
Author(s):  
V. Martin ◽  
M. Al-Mamun ◽  
A. Small
Keyword(s):  
Tailings Dam ◽  
Dam Breach

Some lessons from a recent tailings dam failure

2009 ◽  
pp. 343-352
Author(s):  
J.-C. Ballard ◽  
Berghe J.-F. Vanden ◽  
R. A. Jewell ◽  
M. Pirson
Keyword(s):  
Dam Failure ◽  
Tailings Dam

scholarly journals A Method for Fast Evaluation of Potential Consequences of Dam Breach

Water ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 2224 ◽  
Author(s):  
Wei Ge ◽  
Yutie Jiao ◽  
Heqiang Sun ◽  
Zongkun Li ◽  
Hexiang Zhang ◽  
...  
Keyword(s):  
At Risk ◽  
Evaluation Method ◽  
Evaluation Model ◽  
Physical Models ◽  
Evaluation Index System ◽  
Building Vulnerability ◽  
Dam Breach ◽  
Fast Analysis ◽  
Fast Evaluation ◽  
Loss Of Life

Dam breach has catastrophic consequences for human lives and economy. In previous studies, empirical models are often, to a limited extent, due to the inadequacy of historical dam breach events. Physical models, which focus on simulating human behavior during floods, are not suitable for fast analysis of a large number of dams due to the complexities of many key parameters. Therefore, this paper proposes a method for fast evaluation of potential consequences of dam breach. Eight main indices, i.e., capacity of reservoir (CR), dam height (HD), population at risk (PR), economy at risk (ER), understanding of dam breach (UB), industry type (TI), warning time (TW), and building vulnerability (VB), are selected to establish an evaluation index system. A catastrophe evaluation method is introduced to establish an evaluation model for potential consequences of dam breach based on the indices which are divided into five grades according to the relevant standards and guidelines. Validation of the method by twelve historical dam breach events shows a good accuracy. The method is applied to evaluate potential consequences of dam breach of Jiangang Reservoir in Henan Province, China. It is estimated that loss of life in the worst scenario is between that of Hengjiang Reservoir and that of Shimantan Reservoir dam breach, of which fatalities are 941 and 2717, respectively, showing that risk management measures should be taken to reduce the risk of potential loss of life.

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