Laboratory Model Test on Contact Erosion of Dispersive Soil Beneath Pavement Layers

Jegatheesan Piratheepan; Sothilingam Premkumar; Arulrajah Arul; Disfani M. M.; Rajeev Pathmanathan

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Laboratory Model Test on Contact Erosion of Dispersive Soil Beneath Pavement Layers

机译：路面下分散土接触侵蚀的室内模型试验

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Contact erosion failure beneath the pavement layer is frequently under-estimated. The risk of contact erosion failure is high at the interface of pavement embankment constructed on granular working platform material, particularly due to the higher constriction size than the embankment material. In addition, this type of failure occurs in the long-term process and it is furthermore difficult to identify, assess, and mitigate these failures initially. A new laboratory erosion test apparatus was developed in this research and its suitability for determining the risk of pavement deformation due to contact erosion failure as a result of vertical ground water fluctuations at the pavement embankment foundation was assessed. The suitability of this apparatus for the study of contact erosion failure below the pavement layer was examined by studying the erosion rate of dispersive clayey soil placed on the coarse aggregate layer. The soil layer was saturated in five different water cycles and water was allowed to draw down after saturation period for each cycle. The erosion test apparatus developed in this study was found to be suitable and reliable for determining the contact erosion failure under vertical ground water fluctuation beneath the pavement layer.

机译：路面层下面的接触侵蚀破坏经常被低估。在粒状工作平台材料上建造的路堤界面处，接触侵蚀破坏的风险很高，尤其是由于收缩尺寸比路堤材料大。另外，这种类型的故障会发生在长期过程中，此外，一开始很难识别，评估和缓解这些故障。在这项研究中开发了一种新的实验室侵蚀测试设备，并评估了其在确定路堤基础上垂直地下水波动导致的接触侵蚀破坏引起的路面变形风险的适用性。通过研究放置在粗骨料层上的分散性黏土的侵蚀速率，检验了该设备是否适合研究路面下方的接触侵蚀破坏。在五个不同的水循环中土壤层已饱和，并且在每个循环的饱和期后允许滴水。发现在这项研究中开发的腐蚀测试设备适用于确定路面层下垂直地下水波动下的接触腐蚀破坏。

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《Geotechnical testing journal》 |2015年第6期|906-914|共9页
作者
Jegatheesan Piratheepan; Sothilingam Premkumar; Arulrajah Arul; Disfani M. M.; Rajeev Pathmanathan;
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作者单位

Swinburne Univ Technol, Melbourne, Vic 3122, Australia;

Swinburne Univ Technol, Melbourne, Vic 3122, Australia;

Swinburne Univ Technol, Melbourne, Vic 3122, Australia;

Swinburne Univ Technol, Melbourne, Vic 3122, Australia;

Swinburne Univ Technol, Melbourne, Vic 3122, Australia;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
contact erosion; interface; ground water fluctuation; working platform;

机译：接触侵蚀;界面;地下水波动;工作平台;

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1. Permanent Deformation Study of Pavement Layers Using Laboratory Pavement Model Testing [J] . Jegatheesan Piratheepan, Gnanendran C. T. International journal of geomechanics . 2016,第3期

机译：使用实验室路面模型测试的路面层永久变形研究
2. Discussion of "Experimental Study on Contact Erosion Failure in Pavement Embankment with Dispersive Clay" by S. Premkumar, J. Piratheepan, A. Arulrajah, M. Disfani, and P. Rajeev [J] . Amir Hossein Vakili, Mohamad Razip Bin Selamat, Parsa Mohajeri Journal of materials in civil engineering . 2017,第5期

机译：S. Premkumar，J。Piratheepan，A。Arulrajah，M.Disfani和P.Rajeev讨论的“具有分散性粘土的路堤接触侵蚀破坏的试验研究”
3. Closure to "Experimental Study on Contact Erosion Failure in Pavement Embankment with Dispersive Clay" by S. Premkumar, J. Piratheepan, A. Arulrajah, M. Disfani, and P. Rajeev [J] . S. Premkumar, J. Piratheepan, A. Arulrajah, Journal of materials in civil engineering . 2017,第5期

机译：S. Premkumar，J。Piratheepan，A。Arulrajah，M.Disfani和P.Rajeev撰写的“具有分散性粘土的路堤接触侵蚀破坏的试验研究”的结语
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机译：石灰和水泥处理的土层在实验室和大规模加速路面试验下的性能评估
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机译：暴雨对土壤边坡的侵蚀破坏：土壤边坡破坏的实验室研究和改进的GA模型
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机译：混凝土路面下土层模量的试验关系。

Laboratory Model Test on Contact Erosion of Dispersive Soil Beneath Pavement Layers

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