| 湿陷性黄土地区高速铁路路基沉降预警研究 |
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| 引用本文： | 李俊,;卢大玮,;李家春.湿陷性黄土地区高速铁路路基沉降预警研究[J].路基工程,2014,0(3):95-99. |
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| 作者姓名： | 李俊 ;卢大玮 ;李家春 |
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| 作者单位： | 1.河南高速公路监理咨询有限公司, 郑州 450000 |
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| 基金项目： | 铁道部科技研究开发计划：郑西高铁湿陷黄土路基沉降监测技术研究（2009G-007-G） |
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| 摘 要： | 依托郑西高铁客运专线（陕西段），研究了影响路基沉降的主要因素，确定了沉降监测方案，选取累积沉降量和沉降速率作为预警指标；基于实测沉降数据的统计分析和预测分析，并结合路基工后沉降控制标准，对预警指标进行了三级划分，提出了对应的预警方法；开发了铁路路基沉降监测预警系统。为黄土地区高速铁路路基沉降预警提供参考。
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| 关 键 词： | 湿陷性黄土 高速铁路 路基沉降 预警系统 |
| 收稿时间： | 2019-11-12 |
Study on Early Warning for Subgrade Settlement of High-speed Railway in Collapsible Loess Regions |
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| Affiliation: | LI Jun, LU Dawei, LI Jiaehun( 1. Henan Highway Engineering Supervision Consuhation Co. , Ltd. , Zhengzhou 450000, China; 2. Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang＇an University, Xi＇an 710064, China; 3. Xi＇an Railway Bureau, Xi＇an 710064, China) |
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| Abstract: | On the basis of Zhengzhou-Xi＇an high-speed PDL （ Shaanxi Section）, the factors affecting the subgrade settlement were studied, through which the settlement monitoring scheme was determined with accumulated settlement and settling velocity selected as the indicators for early warning. Based on the statistical analysis and prediction based on the measured settlement data, and combined with the control standard for post-construction settlement of subgrade, the early warning indicators were divided into three classes, and the corresponding warning methods were put forward as well. Therefore, the monitoring and early warning system for railway subgrade settlement was developed, which could be referred to in early warning of subgrade settlement of high-speed railway in loess regions. |
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| Keywords: | collapsible loess high-speed railway subgrade settlement early warning system |
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