Experimental and numerical investigations of a catastrophic tailings dam break in Daye, Hubei, China

2021 ◽  
Vol 81 (1) ◽  
Author(s):  
Yu Zhuang ◽  
Kaiping Jin ◽  
Qiangong Cheng ◽  
Aiguo Xing ◽  
Hao Luo
Keyword(s):  
Dam Break ◽  
Tailings Dam ◽  
Numerical Investigations

scholarly journals Numerical Analysis of Sand Bed Degrading and Sediment Transport Rate Under Tailings Dam Break

2021 ◽  
Vol 9 ◽  
Author(s):  
Zhong Tian ◽  
Hao Yang ◽  
Wei Wang ◽  
DeSheng Cao
Keyword(s):  
Sediment Transport ◽  
Surface Profile ◽  
Local Environment ◽  
Dam Break ◽  
Transport Rate ◽  
Tailings Dam ◽  
Sediment Transport Rate ◽  
Outflow Rate ◽  
Calculation Results ◽  
Dam Breaking

Dam-breaking accidents in tailings ponds may result in loss of tailings, damage to the downstream bridges and houses, flooding of farmland and roads, hazards to the local environment, and even loss of property and lives. Therefore, research on dam breaks in tailings reservoirs and prediction of subsequent impacts are of great significance. This paper describes theoretical and numerical analyses of the retrogressive erosion model and calculations of the sand bed surface profile and sediment transport rate following tailings dam break events. The calculation results show that the degrading rate of the bed surface in the reservoir area reaches a maximum when the breach is formed and then rapidly decreases to a stable value. Farther away from the breach, the peak degrading rate of the bed surface is lower. The time of the peak tailings outflow rate is related to the formation of the breach. A larger breach has a shorter formation time and a greater peak flow.

scholarly journals Numerical investigations of dam-break flow problem

2019 ◽  
Vol 1404 ◽  
pp. 012052
Author(s):  
S N Yakovenko ◽  
E E Yakovenko ◽  
K C Chang
Keyword(s):  
Flow Problem ◽  
Dam Break ◽  
Numerical Investigations ◽  
Dam Break Flow

Study on Automatic Safety Monitoring and Management System of Tailings Reservoir

2013 ◽  
Vol 663 ◽  
pp. 1043-1048
Author(s):  
Hai Ming Liu ◽  
Jing Cao
Keyword(s):  
Management System ◽  
Drainage System ◽  
Safety Monitoring ◽  
Construction Rule ◽  
Dam Break ◽  
Slope Instability ◽  
Mine Safety ◽  
Component Part ◽  
Tailings Dam ◽  
Tailings Reservoir

The tailings dam is a very important component part in mine production facilities. Meanwhile, it is a potential major risk source with high potential energy. Through collecting many accidents of the tailings dam, it is showed that accident type of the tailings dam mainly is dam-break, damage of drainage system, leakage of tailings, etc. On the basis of this analysis, the main causes of dam-break are slope instability, breaking construction rule, unusual rainfall, etc. The automatic safety monitoring and management system of the tailings reservoir (ASMMS) is a powerful measure for mine safety production. The basic frame of the ASMMS is proposed. The main contents and key problems of the ASMMS are also analyzed. It can provide a strong theoretical and technical basis for the safety and management of the tailings dam.

Experimental and numerical investigations of similarity for dam-break flows on wet bed

2020 ◽  
Vol 583 ◽  
pp. 124598 ◽  
Author(s):  
Bo Wang ◽  
Wenjun Liu ◽  
Wei Wang ◽  
Jianmin Zhang ◽  
Yunliang Chen ◽  
...  
Keyword(s):  
Dam Break ◽  
Numerical Investigations

Risk Assessment Regarding Tailings Dam Break

2012 ◽  
Vol 433-440 ◽  
pp. 1864-1868
Author(s):  
Yong Bao Shu ◽  
Pei Liang Li ◽  
Zhong Xue Li
Keyword(s):  
Risk Assessment ◽  
Potential Risk ◽  
Quantitative Assessment ◽  
Social Economy ◽  
Dam Break ◽  
Space Diversity ◽  
Tailings Dam ◽  
Assessment Approach ◽  
Tailings Reservoir

An assessment approach in regard to tailings dam break would be analyzed and established in aspects of life, property and environment & resources loss in the essay. Tailings bam break hits local social economy varying with region as a result of particular and specialized space diversity. With the simple and practicable approach, it is quite reasonable to accomplish quantitative assessment of risk as well as review controlling priority to potential risk arising from tailings reservoir.

Experimental and numerical investigations of dam break flow over dry and wet beds

2021 ◽  
pp. 106946
Author(s):  
Faroogh Garoosi ◽  
Andrea Mellado-Cusicahua ◽  
Maryam Shademani ◽  
Ahmad Shakibaeinia
Keyword(s):  
Dam Break ◽  
Numerical Investigations ◽  
Dam Break Flow

scholarly journals Three-dimensional numerical simulation of mud flow from a tailings dam failure across complex terrain

2019 ◽  
Author(s):  
Dayu Yu ◽  
Liyu Tang ◽  
Chongcheng Chen
Keyword(s):  
Stokes Equations ◽  
Three Dimensional ◽  
Flow Characteristics ◽  
Dam Break ◽  
Dam Failure ◽  
Tailings Dam ◽  
In Situ Investigation ◽  
Impact Area ◽  
The Impact ◽  
Mud Flow

Abstract. A tailings dam accident can cause serious ecological disaster and property loss. Simulation of a tailings dam accident in advance is useful for understanding the tailings flow characteristics and assessing the possible extension of the impact area. In this paper, a three-dimensional (3-D) computational fluid dynamics (CFD) approach was proposed for reasonably and quickly predicting the flow routing and impact area of mud flow from a dam failure across 3-D terrain. The Navier–Stokes equations and the Bingham-Papanastasiou rheology model were employed as the governing equations and the constitutive model, respectively, and solved numerically in the finite volume method (FVM) scheme. The volume of fluid (VOF) method was used to track the interface between the tailings and air. The accuracy of the CFD model and the chosen numerical algorithm were validated using an analytical solution of the channel flow problem and a laboratory experiment on the dam break problem reported in the literature. In each issue, the obtained results were very close to the analytical solutions or experimental values. The proposed approach was then applied to simulate two scenarios of tailings dam failures, one of which was the Feijão tailings dam that failed on 25 January 2019, and the simulated routing coincided well with the in situ investigation. Therefore, the proposed approach does well in simulating the flow phenomenon of tailings after a dam break, and the numerical results can be used for early warning of disasters and emergency response.

Tailings dam-break flow analysis by means of a combined PIV-PTV tool

2014 ◽  
pp. 1689-1697 ◽  
Author(s):  
Rui Aleixo ◽  
Yavuz Ozeren ◽  
Mustafa Altinakar
Keyword(s):  
Flow Analysis ◽  
Dam Break ◽  
Tailings Dam ◽  
Dam Break Flow
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