| 胶新铁路软弱土路基实测沉降与预测分析 |
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| 引用本文： | 周勇,刘升传,吴立坚.胶新铁路软弱土路基实测沉降与预测分析[J].路基工程,2011,0(3):23-25. |
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| 作者姓名： | 周勇 刘升传 吴立坚 |
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| 作者单位： | 1.贵州省交通规划勘察设计研究院, 贵阳 550001 |
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| 基金项目： | 铁道部胶新铁路路基沉降监测和预测研究 |
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| 摘 要： | 基于胶新铁路路基沉降监测和预测研究,分析了试验段软弱土路基的实测沉降及其变化规律,并对各断面在通车前后的累积沉降进行对比,研究发现:在路堤自重作用下,路堤各部分土体均表现为沉降变形;线路上碴和铺轨阶段沉降较大;正式通车3个月后,路基在自重和列车动荷载作用下,沉降较大;选用不同的预测方法拟合同一工程的不同阶段,能得到更确切的沉降信息,使之服务于工程需要。
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| 关 键 词： | 胶新铁路 路基沉降 软弱土路基 累积沉降 预测 |
| 收稿时间： | 2019-11-10 |
Measured Settlement and Prediction Analysis of Jiaozhou-Xinyi Railway Soft Subgrade |
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| Authors: | ZHOU Yong LIU Sheng-chuan WU Li-jian |
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| Affiliation: | ZHOU Yong1,LIU Sheng-chuan2,WU Li-jian2 (1.Guizhou Communication Planning Survey & Design Institute,Guiyang 550001,China,2.Highway Research Institute of Ministry of Communications,Beijing 100088,China) |
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| Abstract: | Based on subgrade settlement monitoring and prediction of Jiaozhou-Xinyi Railway,this paper analyzed the measured settlement and change law of soft subgrade in test section,and compared the accumulative settlement of different sections before and after opening to traffic.It is found that under the gravity of embankment,various parts of soil mass are deformed.Settlement is larger when filling ballast and laying track.Three months after opening to traffic,subgrade settlement is larger under gravity and dynami... |
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| Keywords: | Jiaozhou-Xinyi Railway subgrade settlement soft subgrade accumulative settlement prediction |
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