• 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引(EI)收录期刊
  • Scopus数据库收录期刊
FENG Huai-ping, GENG Hui-ling, HAN Bo-wen, SHANG Wei-dong, CHANG Jian-mei. Prediction model for settlement of high-speed railway embankment in unsaturated areas[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(6): 1089-1095. DOI: 10.11779/CJGE201706015
Citation: FENG Huai-ping, GENG Hui-ling, HAN Bo-wen, SHANG Wei-dong, CHANG Jian-mei. Prediction model for settlement of high-speed railway embankment in unsaturated areas[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(6): 1089-1095. DOI: 10.11779/CJGE201706015

Prediction model for settlement of high-speed railway embankment in unsaturated areas

More Information
  • Received Date: August 15, 2016
  • Published Date: June 24, 2017
  • The precise prediction of post-construction settlement for high-speed railways is one of the key techniques in successful construction of high-speed railways. The in-situ observation data show that the shapes of settlement vary greatly under different unsaturated conditions. Limitations and risks are observed to predict unsaturated settlement using the traditional predication methods based on the saturated theory. A new prediction method for post-construction settlement of unsaturated high-speed railway embankment is proposed. The characteristics of the proposed model are analyzed, and the solving algorithm for the model is developed. Based on the observed settlement data in LXS-15 of Lanzhou-Xinjiang Double-Line Railway, predictions are carried out respectively using the proposed model and other three methods. By defining the correlation coefficient, deviation degree and stability property as the evaluation indices and using 2 years' continuous in-situ observation data, the prediction precision is investigated and compared. The applications in three sections with different saturations show that the proposed settlement prediction model is feasible and scientific for unsaturated embankment of high-speed railways, and it may provide a method for prediction of post-construction settlement of high-speed railways in unsaturated areas.
  • [1]
    Q/CR 9230—2016 铁路工程沉降变形观测与评估技术规程[S]. 2016. (Q/CR 9230—2016 Observation and evaluation specification for settlement deformation of railway engineering[S]. 2016. (in Chinese))
    [2]
    许兴旺, 李肖伦. 湿陷性黄土地区客运专线路基沉降观测分析[J]. 岩土力学, 2010, 21(1): 233-236. (XU Xing-wang, LI Xiao-lun. An observation and analysis of passenger dedicated line subgrade in collapsible loess zone[J]. Rock and Soil Mechanics, 2010, 21(1): 233-236. (in Chinese))
    [3]
    廖卫红, 王军保. MMF模型在地基沉降预测中的应用研究[J]. 地下空间与工程学报, 2011, 7(4): 807-811. (LIAO Wei-hong, WANG Jun-bao. Study on application of mmf model to prediction of foundation settlement[J]. Chinese Journal of Underground Space and Engineering. 2011, 7(4): 807-811. (in Chinese))
    [4]
    陈善雄, 王星运, 许锡昌, 等. 路基沉降预测的三点修正指数曲线法[J]. 岩土力学, 2011, 32(11): 3355-3360. (CHEN Shan-xiong, WANG Xing-yun, XU Xi-chang, et. Three-point modified exponential curve method for predicting subgrade settlements[J]. Rock and Soil Mechanics. 2011, 32(11): 3355-3360. (in Chinese))
    [5]
    李 懿, 王连俊, 栾光日, 等. 高速铁路站场咽喉区复合地基的工程特性研究[J]. 铁道学报, 2014, 36(12): 93-95. (LI Yi, WANG Lian-jun, LUAN Guang-ri, et al. Research on consolidation characteristics of composite foundation in the throat area of high-speed railway station[J]. Journal of the China Rail Way Society, 2014, 36(12): 93-95. (in Chinese))
    [6]
    吴立坚, 郑甲佳, 邓 捷. 高液限土路基的沉降变形规律[J]. 岩土力学, 2013, 34(增刊2): 351-355. (WU Li-jian, ZHENG Jia-jia, DENG Jie. Settlement law of high liquid limit soil embankment[J]. Rock and Soil Mechanics, 2013, 34(S2): 351-355. (in Chinese))
    [7]
    吴丽君. 高速铁路非饱和土固结压缩特性及地基加固技术研究[D]. 成都: 西南交通大学, 2011. (WU Li-jun. Study on compressibility and consolidation of unsaturated soil and reinforced technique on high-speed railway[D]. Chengdu: Southwest Jiaotong University, 2011. (in Chinese))
    [8]
    杨代泉, 沈珠江. 非饱和土一维固结简化计算[J]. 岩土工程学报, 1991(5): 70-78. (YANG Dai-quan, SHEN Zhu-jiang. Simplified computation of 1D consolidation for partially saturated soil[J]. Rock and Soil Mechanics, 1991(5): 70-78. (in Chinese))
    [9]
    秦爱芳, 阳柳平, 孙德安, 等. 两种边界条件下非饱和土一维固结特性分析[J]. 上海大学学报(自然科学版), 2011, 17(3): 314-319. (QIN Ai-fang, YANG Liu-ping, SUN De-an, et al. One-dimensional consolidation behavior of unsaturated soils under two boundary conditions[J]. Journal of Shanghai University (natural science), 2011, 17(3): 314-319. (in Chinese))
    [10]
    陈正汉, 谢定义, 刘祖典. 非饱和土固结的混合物理论(I)[J].应用数学和力学, 1993(2): 127-137. (CHEN Zheng-han, XIE Ding-yi, LIU Zu-dian. Consolidation theory of unsaturated soil based on the theory of mixture(I)[J]. Applied Mathematics and Mechanics, 1993(2): 127-137. (in Chinese))
    [11]
    陈正汉, 谢定义, 刘祖典. 非饱和土固结的混合物理论(Ⅱ)[J]. 应用数学和力学, 1993, 14(8): 687-698. (CHEN Zheng-han, XIE Ding-yi, LIU Zu-dian. Consolidation theory of unsaturated soil based on the theory of mixture (Ⅱ)[J]. Applied Mathematics and Mechanics, 1993, 14(8): 687-698. (in Chinese))
    [12]
    殷宗泽, 凌 华. 非饱和土一维固结简化计算[J]. 岩土工程学报, 2007, 29(5): 18-21. (YIN Zong-ze, LING Hua. Simplified computation of 1D consolidation for partially saturated soil[J]. Chinese Journal of Geotechnical Engineering, 2007, 29(5): 18-21. (in Chinese)))
    [13]
    邹祖银, 蒋关鲁, 朱占元. 基于离心机模型试验的非饱和土地基沉降特征分析[J]. 防灾减灾工程学报, 2014(1): 67-72. (ZOU Zu-yin, JIANG Guan-lu, ZHU Zhan-yuan. Analysis of Unsaturated soil foundation settlement characteristics based on Centrifuge model test[J]. Journal of Disaster Prevention and Mitigation Engineering, 2014(1): 67-72. (in Chinese))
    [14]
    梅国雄, 宰金珉, 赵维炳, 等. 地基沉降-时间曲线型态的证明及其应用[J]. 土木工程学报2005, 38(6): 69-72. (MEI Guo-xiong, ZAI Jin-min, ZHAO Wei-bing, et al. Proof and application of s-shape settlement time curve for linear or nearly linear loadings[J]. China Civil Engineering Journal, 2005, 38(6): 69-72. (in Chinese))
    [15]
    宰金珉, 梅国雄.全过程的沉降量预测方法研究[J]. 岩土力学2000, 21(4): 322-32. (ZAI Jin-min, MEI Guo-xiong. Forecast method of settlement during the complete process of construction and operation[J]. Rock and Soil Mechanics, 2000, 21(4): 322-32. (in Chinese)))
    [16]
    赵明华, 龙 照, 邹新军. 路基沉降预测的Usher模型应用研究[J]. 岩土力学, 2008, 29(11): 2973-2977. (ZHAO Ming-hua, LONG Zhao, ZOU Xin-jun. Prediction of roadbed settlement by Usher model[J]. Rock and Soil Mechanics, 2008, 29(11): 2973-2981. (in Chinese))

Catalog

    Article views (395) PDF downloads (377) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return