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Influence of Different Particle Sizes of Sediment Laden Flow on Erosion Rate of Tailings Dam

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Proceedings of 2022 4th International Conference on Environment Sciences and Renewable Energy (ESRE 2022)

Part of the book series: Environmental Science and Engineering ((ESE))

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Abstract

There are numerous safety problems of tailings pond in China, and overtop** dam break accidents occur frequently. Based on the mechanics of sediment movement, the influence of different particle sizes on the erosion rate of tailings dam in sediment laden flow was studied by means of indoor test and mathematical induction. The self-made test system for erosion characteristics and scouring process of soil slope under complex hydrodynamic conditions was used. Tailings of Nanchuan in Chongqing and **aoda Goose in Yunnan were used to screen out five different particle sizes (0.075, 0.106, 0.150, 0.250, and 0.425 mm) and proportioned into a sediment laden flow with a concentration of 5% for tailings erosion test. The average erosion rate was calculated and the line chart was drawn by measuring the erosion height and erosion time of tailings samples and repeating the test. The analysis drew the following conclusions: (1) With the same sediment concentration and flow velocity, the smaller the particle size was, the greater the erosion rate was. (2) The relationship curve between particle size and erosion rate showed that when the particle size changed from small to large, the gradient of erosion rate changed from large to small.

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Author information

Authors and Affiliations

  1. School of Safety Science and Engineering, **’an University of Science and Technology (XUST), 58, Yanta Mid. Rd., **’an, Shaanxi, 710054, PR China

    **g-Yu Zhao, Jia-Ming Chang & Jia-Jia Song

  2. Shaanxi Key Laboratory of Prevention and Control of Coal Fire, XUST, 58, Yanta Mid. Rd., **’an, Shaanxi, 710054, PR China

    **g-Yu Zhao

  3. Graduate School of Engineering Science and Technology, National Yunlin University of Science and Technology, Yunlin, 64002, Taiwan

    Chi-Min Shu

Authors
  1. **g-Yu Zhao
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  2. Jia-Ming Chang
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  3. Jia-Jia Song
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  4. Chi-Min Shu
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Corresponding author

Correspondence to **g-Yu Zhao .

Editor information

Editors and Affiliations

  1. Bei**g Advanced Innovation Centre for Smart Matter Science and Engineering, Bei**g University of Chemical Technology, Bei**g, China

    Jan Baeyens

  2. Department of Engineering Science, University of Oxford, Oxford, UK

    Raf Dewil

  3. Department of Engineering Science, University of Oxford, Oxford, UK

    Barbara Rossi

  4. Department of Chemical Engineering, KU Leuven, Leuven, Belgium

    Yimin Deng

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© 2023 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Zhao, JY., Chang, JM., Song, JJ., Shu, CM. (2023). Influence of Different Particle Sizes of Sediment Laden Flow on Erosion Rate of Tailings Dam. In: Baeyens, J., Dewil, R., Rossi, B., Deng, Y. (eds) Proceedings of 2022 4th International Conference on Environment Sciences and Renewable Energy. ESRE 2022. Environmental Science and Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-19-9440-1_6

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