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首页> 外文期刊>Bulletin of engineering geology and the environment >Modeling the flow behavior of a simulated municipal solid waste
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Modeling the flow behavior of a simulated municipal solid waste

机译：模拟模拟的城市固体废物的流动行为

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摘要

Flow slides in the municipal solid waste (MSW) landfill are common geological disasters that have the potential to cause loss of life, destruction of property, and damage to the natural environment in the surrounding region. In this work, a mixture of peat, kaolin clay and quartz sand was used as a model test material to simulate MSW. A series of physical model tests on MSW simulant flows was carried out to capture the run-out behavior of the waste and analyze its mobility. The testing assembly consisted of a transparent model box, a steel frame and a high-speed camera. Flow failure was induced by lifting up a baffle to cause the MSW simulant to collapse and flow. Images of the flowing mass were taken by the high-speed camera. The series of images clearly displays the propagation of MSW simulant flows. The final profile of the MSW simulant and the shape of the deposition area were observed and measured. The run-out distances, final deposit shapes, flow depth, velocities and angle of reach showed significant variation between test configurations, indicating the strong influence of moisture content on overall mobility. The test results obtained can aid in the prediction of distal reach, flow depth and maximum velocity of solid waste following a landfill slope failure, which are necessary for hazard assessment and mitigation planning, and also to provide physical data for theoretical and numerical model verification.
机译：市政固体废物（MSW）垃圾填埋场中的水流滑梯是常见的地质灾害，有可能造成生命损失，财产损失以及对周围地区自然环境的破坏。在这项工作中，泥炭，高岭土和石英砂的混合物被用作模拟MSW的模型测试材料。对MSW模拟流进行了一系列物理模型测试，以捕获废物的逸出行为并分析其流动性。测试组件由透明的模型盒，钢架和高速相机组成。提起挡板使MSW模拟物崩溃并流动，从而引起流动失败。流动物体的图像由高速相机拍摄。该系列图像清楚地显示了MSW模拟流的传播。观察并测量了MSW模拟物的最终轮廓和沉积区域的形状。跳动距离，最终沉积物形状，流动深度，速度和到达角度在测试配置之间显示出显着变化，表明水分含量对总体流动性的强烈影响。获得的测试结果可以帮助预测垃圾填埋场边坡破坏后固体垃圾的远距离，流量深度和最大速度，这对于危险性评估和缓解计划是必不可少的，还可以为理论和数值模型验证提供物理数据。

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  • 作者

    Dai Zili; Huang Yu; Jiang Fuhong; Huang Maosong;

  • 作者单位

    Tongji Univ, Dept Geotech Engn, Coll Civil Engn, Shanghai 200092, Peoples R China;

    Tongji Univ, Dept Geotech Engn, Coll Civil Engn, Shanghai 200092, Peoples R China|Tongji Univ, Key Lab Geotech & Underground Engn, Minist Educ, Shanghai 200092, Peoples R China;

    Tongji Univ, Dept Geotech Engn, Coll Civil Engn, Shanghai 200092, Peoples R China;

    Tongji Univ, Dept Geotech Engn, Coll Civil Engn, Shanghai 200092, Peoples R China|Tongji Univ, Key Lab Geotech & Underground Engn, Minist Educ, Shanghai 200092, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Model test; Municipal solid waste simulant; Landfill; Flow slide; Mobility behavior;

    机译：模型试验;城市固体废物模拟物;填埋;流滑;流动性;

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