Hydraulic Erosion Rate of Reinforced Tailings: Laboratory Investigation and Prediction Model

Chen, Xuanyi; Jing, Xiaofei; Cai, Hai Yong; Wang, Yijun; Ye, Luhua

doi:10.1155/2021/8764862

Cited by 3 publications

(3 citation statements)

References 19 publications

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“…The incorporation of reinforcement can effectively enhance the mechanical occlusion between the tailings particles, thereby enhancing the anti-erosion performance of tailings and increasing their water shear strength. Chen et al (2021) carried out the erosion test of reinforced tailings. The test results show that the addition of reinforcement can enhance the erosion resistance of particles, but with the increase of the spacing of reinforcement, the critical velocity of tailings erosion decreases, and the erosion rate will gradually increase.…”

Section: Reinforced Erosion Modelsmentioning

confidence: 99%

Prediction model investigations of the reinforced fine-grained tailings dam overtopping failure

et al. 2023

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Overtopping dam break is a frequent accident in tailings reservoirs. However, little attention has been paid to the study of overtopping hydraulic erosion damage characteristics of tailings dam after adding reinforcement. Nowadays, there were few people have researched the prediction of the overtopping failure process of the reinforced tailings dam. It is important significance to establish a prediction model for the overtopping of reinforced tailings dam which aims at the problem of overtopping erosion of reinforced tailings. For the anti-erosion and anti-collapse effects of the reinforced tailings dam, a mathematical model for the development of the overtopping breach of the reinforced tailings dam is established. The formula of reinforced erosion rate derived from water flow shear stress theory, simulation of breach erosion development by time iteration method in the mathematical model. Secondly, the limit equilibrium method is used to analyze the stability of the reinforced breach slope. Then, the physical test is used to reproduce the dam failure process of the tailings dam. In addition, the development process of the breach and discharge are monitored. Ultimately, the maximum depth and width of the breach are in brilliant agreement with the calculated values.

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Section: Reinforced Erosion Modelsmentioning

confidence: 99%

Prediction model investigations of the reinforced fine-grained tailings dam overtopping failure

et al. 2023

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“…In recent years, the number of ultrafine tailings reservoirs have been increasing gradually Shi et al, 2020;Han et al, 2022). However, the research efforts on ultrafine tailings particles are still inadequate, thereby inconducive to future sustainable development (Jing et al, 2019;Jing et al, 2021;. The physical and chemical properties and engineering characteristics of slag show that slag exhibits aggregate properties.…”

Section: Introductionmentioning

confidence: 99%

Mechanisms and Early Warning Strategies of Geotechnical Disasters

2024

Frontiers Research Topics

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Frontiers is more than just an open access publisher of scholarly articles: it is a pioneering approach to the world of academia, radically improving the way scholarly research is managed. The grand vision of Frontiers is a world where all people have an equal opportunity to seek, share and generate knowledge. Frontiers provides immediate and permanent online open access to all its publications, but this alone is not enough to realize our grand goals. Frontiers journal seriesThe Frontiers journal series is a multi-tier and interdisciplinary set of openaccess, online journals, promising a paradigm shift from the current review, selection and dissemination processes in academic publishing. All Frontiers journals are driven by researchers for researchers; therefore, they constitute a service to the scholarly community. At the same time, the Frontiers journal series operates on a revolutionary invention, the tiered publishing system, initially addressing specific communities of scholars, and gradually climbing up to broader public understanding, thus serving the interests of the lay society, too. Dedication to qualityEach Frontiers article is a landmark of the highest quality, thanks to genuinely collaborative interactions between authors and review editors, who include some of the world's best academicians. Research must be certified by peers before entering a stream of knowledge that may eventually reach the public -and shape society; therefore, Frontiers only applies the most rigorous and unbiased reviews. Frontiers revolutionizes research publishing by freely delivering the most outstanding research, evaluated with no bias from both the academic and social point of view. By applying the most advanced information technologies, Frontiers is catapulting scholarly publishing into a new generation. What are Frontiers Research Topics?Frontiers Research Topics are very popular trademarks of the Frontiers journals series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area.

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“…As the slag particles have a certain cohesion compared with ordinary rocks, the difference in material characteristics affects the mechanical properties of TSM. Most of the physical and mechanical properties of the SRM have been studied in three ways: laboratory testing, numerical simulation, and theoretical analysis (Chen et al, 2021;Li et al, 2022). Xing et al (2020) used particle flow software to simulate the triaxial test numerically and elucidated the micro-mechanism of SRM with different rock content.…”

Section: Introductionmentioning

confidence: 99%

Multiscale mechanical characterizations of ultrafine tailings mixed with incineration slag

Jing

Jia³

et al. 2023

Front. Earth Sci.

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Adding a type of municipal solid waste (incinerator slag) into ultrafine tailings can effectively enhance the mechanical properties of tailings. With an aim to study the macro- and micro-mechanical properties of the tailings slag mixture (TSM), the strength parameters (internal friction angle, cohesion) and micro-mechanical properties with different slag contents were analyzed by geotechnical experiments and particle flow simulations, respectively. The macroscale experimental results demonstrated that the strength parameters of TSM were much higher than that of tailings. Strength parameters also showed non-linear-rising trends with increasing slag content. For the slag content of 40%, the maximum cohesiveness of TSM was determined at 65.2 kPa, and the corresponding friction angle was 39.9°C. Furthermore, the Particle Flow Code (PFC) micro-simulation software was used to analyze the micro-mechanical characteristics of the TSM at different slag contents. The microscale simulation outcomes indicated that the particle transport, particularly in their moving directions, became increasingly chaotic with an increase in the slag content; also, the slag particles significantly impacted the shear processing zone of the TSM. These experimental and numerical results brought more scientific insights into the shear failure mechanism of TSM.

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Hydraulic Erosion Rate of Reinforced Tailings: Laboratory Investigation and Prediction Model

Cited by 3 publications

References 19 publications

Prediction model investigations of the reinforced fine-grained tailings dam overtopping failure

Prediction model investigations of the reinforced fine-grained tailings dam overtopping failure

Mechanisms and Early Warning Strategies of Geotechnical Disasters

Multiscale mechanical characterizations of ultrafine tailings mixed with incineration slag

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