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红土镍矿流态化特性的模型试验研究

周健, 朱耀民, 简琦薇, 贾敏才, 金允龙

周健, 朱耀民, 简琦薇, 贾敏才, 金允龙. 红土镍矿流态化特性的模型试验研究[J]. 岩土工程学报, 2014, 36(8): 1515-1520. DOI: 10.11779/CJGE201408018
引用本文: 周健, 朱耀民, 简琦薇, 贾敏才, 金允龙. 红土镍矿流态化特性的模型试验研究[J]. 岩土工程学报, 2014, 36(8): 1515-1520. DOI: 10.11779/CJGE201408018
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ZHOU Jian, ZHU Yao-min, JIAN Qi-wei, JIA Min-cai, JIN Yun-long. Model tests on fluidization characteristics of laterite nickel ore in bulk[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(8): 1515-1520. DOI: 10.11779/CJGE201408018
Citation: ZHOU Jian, ZHU Yao-min, JIAN Qi-wei, JIA Min-cai, JIN Yun-long. Model tests on fluidization characteristics of laterite nickel ore in bulk[J]. Chinese Journal of Geotechnical Engineering, 2014, 36(8): 1515-1520. DOI: 10.11779/CJGE201408018
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红土镍矿流态化特性的模型试验研究  English Version

  • 1.同济大学地下建筑与工程系,上海 200092; 2. 同济大学岩土及地下工程教育部重点实验室,上海 200092; 3. 上海船舶运输科学研究所,上海,200135

基金项目: 国家重点基础研究发展计划（973计划）项目（2012CB723804）
详细信息
    作者简介:

    周 健(1957- ),男,博士,教授,博士生导师,主要从事土动力学、岩土地震工程、土体细观力学性质试验与数值模拟等方面的教学与研究工作。E-mail: tjuzi@vip.163.com。

  • 中图分类号: TU443

Model tests on fluidization characteristics of laterite nickel ore in bulk

  • 1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China; 3. Shanghai Ship & Shipping Research Institute, Shanghai 200135, China

摘要

    摘要
  • 摘要: 通过室内小型振动台模型试验,对船载红土镍矿的流态化特性进行了研究。基于数字图像采集和分析,揭示了红土镍矿流态化的演化过程。分析了含水率、加速度等因素对红土镍矿流态化特性的影响以及孔隙水压力和含水率在流态化过程中的变化规律。试验结果表明：水分迁移是造成红土镍矿形成流态化的主要原因;含水率是影响红土镍矿流态化发生的关键因素,建议实际运输中控制与本试验相同的红土镍矿含水率在31.0%以下;加速度大于某一临界值时,加速度对红土镍矿流态化特性才有较大影响。研究对减少红土镍矿在船运过程中流态化风险有重要的意义。
    Abstract: By means of shaking table tests, the fluidization characteristics of laterite nickel ore in bulk under dynamic loading are investigated. With the help of digital image capture and processing technology, the phenomenon of fluidization evolution is revealed. The effect of different influencing factors such as moisture content, acceleration and the change law of pore water pressure and moisture content in the process of fluidization are analyzed. The test results show that the moisture migration is the main cause for fluidization of laterite nickel ore. The fluidization of laterite nickel ore is mostly influenced by the moisture content, and it is suggested that the moisture content of laterite nickel ore used in the test should be below 31.0% in practical transport. Only when the acceleration is greater than a certain critical value, the acceleration has great influence on the fluidization characteristics of laterite nickel ore. This study is of important significance in reducing risk for laterite nickel ore in the shipping process.
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    • 参考文献(14)
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    [2] 船载镍矿的安全运输技术研究[D]. 大连: 大连海事大学, 2012. (WANG Yi-bo. Research on the safe shipment technology of nickel ore[D]. Dalian: Dalian Maritime University, 2012. (in Chinese))
    [3] 董庆如. 船舶载运易流态化货物的风险和对策[J]. 中国航海, 2011, 34(2): 101-104. (WANG Hong-liang, DONG Qing-ru. The risks of the ship carrying cargoes that may liquefy and countermeasures to be taken[J]. China Maritime Safety, 2011, 34(2): 101-104. (in Chinese))
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出版历程
  • 收稿日期:  2013-11-21
  • 发布日期:  2014-08-18

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