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首页> 外文期刊>Journal of material cycles and waste management >Mechanical behavior of typical hazardous waste and its influence on landfill stability during operation
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Mechanical behavior of typical hazardous waste and its influence on landfill stability during operation

机译：典型危险废物的机械行为及其对运营期间垃圾填埋场稳定性的影响

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摘要

The stability of hazardous waste (HW) landfill is a major security risk to the landfill environmental safety. The mechanical behavior of waste controls many aspects of landfill design and operation, including stability and settlement issues and the integrity of geosynthetic and liner components. This study presents the results of a laboratory experiment to learn the mechanical properties of HW collected from the Hangzhou HW landfill. Measured mechanical behavior was compared with results for municipal solid waste (MSW) to assess their discrepancies. The particle size of HW was analyzed by the sieving and hydrometer methods. Because HW comes primarily from industrial plants in the form of sludge or slag, their particle sizes are generally smaller than those of MSW. This study indicates that the shear strength parameters of HW are more sensitive to the methods of testing and calculation than those of MSW. Numerical simulations demonstrate that the safety factor of a landfill is affected by the mechanical properties of HW, especially cohesion and friction angle. Because of the lower particle size and wider compression ratio, compared to MSW, an HW landfill should be taken more care in its operational procedures so as to increase its stability.
机译：危险废物（HW）垃圾填埋场的稳定性是对垃圾填埋场环境安全的主要安全风险。废物的机械行为控制着垃圾掩埋场设计和运行的许多方面，包括稳定性和沉降问题以及土工合成材料和衬砌组件的完整性。这项研究提出了一项实验室实验的结果，以了解从杭州垃圾填埋场收集的硬件的力学性能。将测量的机械行为与城市固体废物（MSW）的结果进行比较，以评估其差异。通过筛分和比重计法分析了HW的粒度。由于HW主要来自工业工厂，以污泥或矿渣的形式存在，因此其粒径通常小于MSW。这项研究表明，HW的抗剪强度参数对测试和计算方法比MSW更为敏感。数值模拟表明，垃圾填埋场的安全系数受硬件的机械性能，尤其是内聚力和摩擦角的影响。与城市固体废弃物相比，由于其较低的粒径和较宽的压缩比，应在其操作程序中多加注意硬件废弃物填埋场，以提高其稳定性。

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  • 作者

    Yuqiang Liu; Ruidong Peng; Ya Xu; Changxin Nai; Lu Dong; Junrong Ren;

  • 作者单位

    State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environment Sciences, Beijing 100012, China;

    State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100083, China;

    State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environment Sciences, Beijing 100012, China;

    State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environment Sciences, Beijing 100012, China;

    State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environment Sciences, Beijing 100012, China;

    State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology, Beijing 100083, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Hazardous waste; Landfill stability; Mechanical behavior; Shear strength; Safety factor;

    机译：危险废物;垃圾填埋场的稳定性;机械性能;剪切强度;安全要素;

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