Flows of Liquefied Filtered Tailings: Laboratory-Scale Physical and Numerical Modeling

Sánchez-Peralta, John A.; Beltrán-Rodríguez, Lorena N.; Trujillo-Vela, Mario Germán; Larrahondo, Jesús E.

doi:10.1007/s40999-019-00482-7

Cited by 7 publications

(4 citation statements)

References 37 publications

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“…The study found that the shape has a significant impact on the flow velocity of sand containing water flow, and different terrain roughness also affects the flow velocity distribution of sand containing water flow. Sanchez Perelta et al 7 studied the characteristics of dam break debris flow movement using dry tailings mixed with different water contents, and obtained the relationship between the length and width of dam break debris flow movement. Gao et al 8 used homogeneous mud to simulate the movement of dam break debris flow and measured the yield stress of the mud in a water tank, obtaining the variation pattern of the yield stress of homogeneous mud.…”

Section: Introducementioning

confidence: 99%

Research on Risk and Disaster Prediction of Tailings Dam Break in Complex Environments

Luo

2023

Preprint

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In response to the challenges posed by rapid development, wide-ranging disaster impact, and 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. Establish a 1:150 physical model for tailing dam failure test and combine it with RAMMS debris flow software to study the mechanism of tailing dam failure and the evolution law of rock flow in complex environments. By analyzing and comparing experimental data, the consequences of disaster risk following dam failure were summarized in a comprehensive manner. The results show that: The particle size distribution of the model sand should be moderate; The composition of particle size distribution has a significant impact on the collapse morphology of dam body after dam failure. The saturation line is the lifeline for tailing reservoir stability, and its level determines the degree of tailing saturation in the reservoir. The breach is situated at the midpoint of the dam crest. When the breach occurs, the inflow volume is 0.313m3. According to the flow ratio relationship, the inflow volume at breach occurrence is equivalent to 1.78 times the total amount of a 1000-year flood and 1.19 times the total amount of a probable maximum flood (PMF). The analysis of the surface flow field reveals that the region with the highest flow velocity extends from the dam toe to Shangdi village; The impact on Shizhou village is limited to the backwater of the dam break water flow and gradual sedimentation of tailings.

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Section: Introducementioning

confidence: 99%

Research on Risk and Disaster Prediction of Tailings Dam Break in Complex Environments

Luo

2023

Preprint

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“…The influence of the length of the dry beach and the upstream slope ratio on the seepage and stability of the tailings dam was determined. Sánchez-Peralta et al [11] took a dry tailings pond in Colombia as the research object, studied the movement characteristics of dam break debris flow with different water contents, and obtained the relationship between the length and width of dam break debris flow movement. Changbo Du et al [12] studied and analyzed the influence of reinforcement on tailings dam and the change law of pore water pressure and internal pressure of the dam body after mud discharge.…”

Section: Introduction 1research Statusmentioning

confidence: 99%

Study of a Tailings Dam Failure Pattern and Post-Failure Effects under Flooding Conditions

Gao,

Liu,

et al. 2023

Water

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Tailings dams are structures that store both tailings and water, so almost all tailings dam accidents are water related. This paper investigates a tailings dam’s failure pattern and damage development under flood conditions by conducting a 1:100 large-scale tailings dam failure model test. It also simulates the tailings dam breach discharge process based on the breach mode using FLOW-3D software, and the extent of the impact of the dam failure debris flow downstream was derived. Dam failure tests show that the form of dam failure under flood conditions is seepage failure. The damage manifests itself in the form of flowing soil, which is broadly divided into two processes: the seepage stabilization phase and the flowing soil development damage phase. The dam failure test shows that the rate of rise in the height of the dam saturation line is faster and then slower. The order of the saturation line at the dam face is second-level sub-dam, third-level sub-dam, first-level sub-dam, and fourth-level sub-dam. The final failure of the tailings dam is the production of a breach at the top of the dam due to the development of the dam’s fluid damage zone to the dam top. The simulated dam breach release results show that by the time the dam breach fluid is released at 300 s, the area of over mud has reached 95,250 square meters. Local farmland and roads were submerged, and other facilities and buildings would be damaged to varying degrees. Based on the data from these studies, targeted measures for rectifying hidden dangers and preventing dam breaks from both technical and management aspects can be proposed for tailings dams.

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“…The study found that shape has a significant impact on the flow velocity of sand containing water flow, and different terrain roughness also affects the flow velocity distribution of sand containing water flow. Sanchez Perelta et al [7] studied the characteristics of dam break debris flow movement using dry tailings mixed with different water contents and obtained the relationship between the length and width of dam break debris flow movement. Gao et al [8] used homogeneous mud to simulate the movement of dam break debris flow and measured the yield stress of the mud in a water tank, obtaining the variation pattern of the yield stress of homogeneous mud.…”

Section: Introductionmentioning

confidence: 99%

Study on the Evolution of Tailings Dam Break Disaster under Complex Environment

Luo,

Li,

2023

Sustainability

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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 physical model for testing tailing dam failure and combined it with RAMMS (V1.7.0) debris flow software to investigate the mechanisms of tailing dam failure and the evolutionary patterns of rock flows in complex environments. Through the analysis and comparison of experimental data, we comprehensively summarized the consequences of disaster risk resulting from dam failure. The results show that the grain size distribution of the model sand should be moderate; the composition of the particle size distribution has a significant impact on the collapse morphology of the dam after failure. The saturation line is the lifeline for the stability of the wake reservoir, and its level determines the degree of saturation of the wake in the reservoir. The breach was at the midpoint of the crest of the dam. The inflow volume at the time of the breach was 0.313 m3. According to the flow ratio relationship, the inflow volume at breach occurrence was equivalent to 1.78 times the total amount of a 1000-year flood and 1.19 times the total amount of a probable maximum flood (PMF). Analysis of the surface flow field revealed that the region with the highest flow velocity extended from the toe of the dam to Shangdi village; the impact on the village of Shizhou was limited to the backflow of the dam break and the gradual sedimentation of the tailings.

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Flows of Liquefied Filtered Tailings: Laboratory-Scale Physical and Numerical Modeling

Cited by 7 publications

References 37 publications

Research on Risk and Disaster Prediction of Tailings Dam Break in Complex Environments

Research on Risk and Disaster Prediction of Tailings Dam Break in Complex Environments

Study of a Tailings Dam Failure Pattern and Post-Failure Effects under Flooding Conditions

Study on the Evolution of Tailings Dam Break Disaster under Complex Environment

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