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Response of Vertical Drains in Soft Subgrade under Cyclic Rail Loading

Response of Vertical Drains in Soft Subgrade under Cyclic Rail Loading
循环轨道荷载作用下软基竖向排水的响应
批准号：
DP230101769
负责人：
Prof Buddhima Indraratna
金额：
$40.18万
依托单位：
University of Technology Sydney
依托单位国家：
澳大利亚
项目类别：
Discovery Projects
财政年份：
2023
资助国家：
澳大利亚
项目状态：
未结题
起止时间：
2023-01-01 至 2025-12-31
来源：
https://dataportal.arc.gov.au/RGS/Web/Grants/DP230101769
关键词：
ResponseVerticalDrainsSoftSubgrade

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中文摘要
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英文摘要
Soft formations (subgrade) can become unstable when subjected to heavy and repeated (cyclic) train loading. This project aims to investigate the cause and mechanisms of undrained instability of soft subgrade soil beneath rail embankments, and to assess the effectiveness of prefabricated vertical drains (PVDs) in stabilising such soils. The role of PVDs to enhance track performance will be quantified via rigorous mathematical techniques complementing a computer-based numerical model, which can be validated by laboratory and field data. It will deliver tangible outcomes for accurately predicting the long-term settlements in soft foundations over prolonged train loading while extending the life span of modern railroad infrastructure.
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