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临线堆载影响下高铁路基长期沉降预测方法

姚仰平, 王珅, 王乃东, 张千里

姚仰平, 王珅, 王乃东, 张千里. 临线堆载影响下高铁路基长期沉降预测方法[J]. 岩土工程学报, 2019, 41(4): 625-630. DOI: 10.11779/CJGE201904004
引用本文: 姚仰平, 王珅, 王乃东, 张千里. 临线堆载影响下高铁路基长期沉降预测方法[J]. 岩土工程学报, 2019, 41(4): 625-630. DOI: 10.11779/CJGE201904004
shu
YAO Yang-ping, WANG Shen, WANG Nai-dong, ZHANG Qian-li. Prediction method for long-term settlements of high-speed railway subgrade under influences of nearby loads[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(4): 625-630. DOI: 10.11779/CJGE201904004
Citation: YAO Yang-ping, WANG Shen, WANG Nai-dong, ZHANG Qian-li. Prediction method for long-term settlements of high-speed railway subgrade under influences of nearby loads[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(4): 625-630. DOI: 10.11779/CJGE201904004
shu

临线堆载影响下高铁路基长期沉降预测方法  English Version

  • 1. 北京航空航天大学交通科学与工程学院,北京 100083;
    2. 中国铁道科学研究院集团有限公司铁道建筑研究所,北京 100081

基金项目: 国家自然科学基金项目（11672015,51579005）
详细信息
    作者简介:

    姚仰平(1960- ),男,北京航空航天大学教授,博士生导师,973首席科学家,主要从事岩土本构理论研究。E-mail: ypyao@buaa.edu.cn。

  • 中图分类号: TU433

Prediction method for long-term settlements of high-speed railway subgrade under influences of nearby loads

  • 1. School of Transportation Science and Engineering, Beihang University, Beijing 100083;
    2. Railway Construction Research Institute of China Railway Research Institute Group Co., Ltd., Beijing 100081, China

摘要

    摘要
  • 摘要: 高铁对变形十分敏感,而铁道的临线区域又不可避免地会遭遇到土体等堆载的作用,因此工程中十分关注临线堆载下铁路路基变形的情况和趋势。通常采取的办法是对特定监测点进行定期观测,但是这种观测仅能反映铁路当前的变形情况,无法对未来做出判断。如能基于已有数据对铁路路基未来变形进行有效的预测,提早发现铁路未来某时间将会出现的预警变形,对于高铁的安全运营管理具有重要意义。笔者等提出的蠕变沉降实用算法,可根据有限沉降数据预测未来变形,论证了使用蠕变实用算法预测高铁路基长期变形的可行性并给出了根据已有实测数据时段计算特定误差下的有效预测范围的方法。
    Abstract: The long-term settlement of high-speed railway subgrade usually occurs under the influences of the nearby loads, and it will result in unsafety of the high-speed running trains. A practical computation method for creep is proposed by Yao et al, and it can predict the future deformation according to the limited settlement data. Taking the simulating data from the ABAQUS software which can simulate the increasing subgrade settlement with time as examples, the feasibility of using the practical method for creep to predict the long-term deformation of high-speed railway subgrade is demonstrated, and the relavant method to calculate the effective range of the prediction under certain errors is also given. It is shown that by using the practical method for creep, we can accurately predict the deformation based on the existing data, and also can get the early warning deformation of the railway for the future. It is of great significance to the safe operation management of high-speed railways.
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    • 参考文献(12)
  • [1] 王炳龙, 周顺华, 杨龙才. 高速铁路软土路基工后沉降试验研究[J]. 同济大学学报(自然科学版), 2003, 31(10): 1163-1167.
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    (CAO Xin-wen, CAI Ying, SU Qian.Research on the deformation control of high-speed railway subgrade[J]. Subgrade Engineering, 1998(2): 38-41. (in Chinese))
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    (HUANG Yu-xin.Analysis of adjacent surcharge impact to the internal force and displacement of high-speed railway bridge pile foundation in deep soft soil[D]. Changsha: Central South University, 2014. (in Chinese))
    [6] 姚仰平, 祁生钧, 车力文. 高填方地基工后沉降计算[J]. 水力发电学报, 2016, 35(3):1-10.
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    (KONG Ling-ming, LUO Ting, YAO Yang-ping.Description of critical state for rate-dependent constitutive models[J]. Rock and Soil Mechanics, 2015, 36(9): 2442-2450. (in Chinese))
    [10] 胡晶, 姚仰平. 基于考虑时间效应UH模型的一维固结分析[J]. 北京航空航天大学学报, 2015, 41(8): 1492-1498.
    (HU Jing, YAO Yang-ping.1D-consolidation analysis based on UH model considering time effect[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(8): 1492-1498. (in Chinese))
    [11] 姚仰平, 冯兴, 黄祥, 等. UH模型在有限元分析中的应用[J]. 岩土力学, 2010, 31(1): 237-245.
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  • 被引次数: 15
出版历程
  • 收稿日期:  2018-03-18
  • 发布日期:  2019-04-24

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