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近邻地铁隧道深基坑的流变效应研究

付艳斌, 杨志银

付艳斌, 杨志银. 近邻地铁隧道深基坑的流变效应研究[J]. 岩土工程学报, 2013, 35(zk2): 834-838.
引用本文: 付艳斌, 杨志银. 近邻地铁隧道深基坑的流变效应研究[J]. 岩土工程学报, 2013, 35(zk2): 834-838.
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FU Yan-bin, YANG Zhi-yin. Rheological effects of deep foundation pits near metro tunnels[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 834-838.
Citation: FU Yan-bin, YANG Zhi-yin. Rheological effects of deep foundation pits near metro tunnels[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 834-838.
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近邻地铁隧道深基坑的流变效应研究  English Version

  • 1. 深圳大学土木工程学院,广东 深圳 518060; 2. 同济大学岩土及地下工程教育部重点实验室,上海 200092; 3. 深圳冶建院建筑技术有限公司,广东 深圳 518054

基金项目: 国家自然科学基金项目（51108270）
详细信息
    作者简介:

    付艳斌（1977- ），男，博士，副教授，硕士生导师，主要从事岩土工程、隧道及地下工程的教学与科研工作。E-mail: fuyanbin999@163.com。

  • 中图分类号: TU470

Rheological effects of deep foundation pits near metro tunnels

  • 1. College of Civil Engineering, Shenzhen University, Shenzhen 518060, China; 2. Key Laboratory of Geotechnical and Underground Engineering of Education Ministry of Tongji University, Shanghai 200092, China; 3.Jingye Engineering Corporation Limited Company, Shenzhen 518054, China

摘要

    摘要
  • 摘要: 利用室内三轴蠕变试验结果,分析和研究了上海软黏土不同应力下的变形时间效应。试验表明,在弹性范围内软土可以用五元件黏弹性模型进行模拟。将建立的黏弹性元件模型应用到近邻地铁的深基坑开挖,分析了基坑支护结构倾斜、墙间留土与不留土流变速率的影响以及隧道不均匀沉降的规律,并与实测数据进行了对比。结论表明五元件黏弹性模型可以模拟软土深基坑的开挖流变效应。
    Abstract: The time-dependent properties of Shanghai soft soils under different loadings are studied based on indoor creep tests. The tests show that the creep curve can be simulated by means of the viscoelastic model which is composed of five elements when the loading is below a certain load limit. The creep effects of deep foundation pits are analyzed by using the viscoelastic model. The incline change of support construction by the excavation, the creep rate and non-uniform settlement of the metro tunnel are compared with the measured data. The results show that the viscoelastic model with of five elements can reflect the creep effects of deep foundation pits.
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    • 参考文献(12)
  • [1] 孙 钧. 岩土材料流变及其工程应用[M]. 北京: 中国建筑工业出版社, 1999. (SUN Jun. Rheology of rock and soil and engineering applications[M]. Beijing: China Architecture and Building Press, 1999. (in Chinese))
    [2] 陈宗基. 固结及时间效应的单维问题[J]. 土木工程学报, 1958, 5(1): 1-10. (CHEN Zong-ji. One-dimensional question of consolidation and secondary consolidation on timedependent[J]. Chinese Journal of Civil Engineering, 1958, 5(1): 1-10. (in Chinese))
    [3] FOLQUE J. Rheology properties of compacted unsaturated soils[C]// Proceedings of 5th International Conference on Soil Mechanics and Foundation Engineering. 1961.
    [4] CHRISTE I F. A re-appraisal of Merchant’s contribution to the theory of consolidation[J]. Géotechnique, 1964, 14(4): 309-320.
    [5] YIN J H, GRAHAM J. Equivalent times and elastic visco-plastic modelling of time-dependent stress-strain behavior of clays[J]. Canadian Geotechnical Journal, 1994, 31(1): 42-52.
    [6] YIN J H, GRAHAM J. Elastic visco-plastic modelling of one-dimensional consolidation[J]. Géotechnique, 1996, 46(3): 515-527.
    [7] CHEN Xiao-ping, BAI Shi-wei, YANG Chun-he. Viscous elastic plastic consolidation model and finite element analysis for soft foundation[C]// 10th Int. Conf. on Computer Method and Advances in Geo. Tucson, 2001.
    [8] DESAI C S, SANE S. Unified constitutive models: simplified for practical applications[M]. Hong Kong: Constitutive Modelling Development, Implementation, Evaluation, and Application, 2007: 39-64.
    [9] 付艳斌, 朱合华, 杨 骏. 软土卸荷时效性及其孔隙水压力变化试验研究[J]. 岩石力学与工程学报, 2009, 28(增刊1): 3244-3249. (FU Yan-bin, ZHU He-hua, YANG Jun. Experimental study on time-dependent properties and pore water pressure of soft soil under unloading[J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(S1): 3244-3249. (in Chinese))
    [10] 刘 涛. 外滩通道基坑开挖对既有隧道结构影响分析[J].中国市政工程, 2010(增刊1): 138-141. (LIU Tao On influence analysis of foundation pit excavation to existed tunnel structure of the bund tunnel[J]. China Municipal Engineering, 2010(S1): 138-141. (in Chinese) )
    [11] 高广运, 高 盟, 杨成斌, 等. 基坑施工对运营地铁隧道的变形影响及控制研究[J]. 岩土工程学报, 2010, 32(3): 453-459. (GAO Guang-yun, GAO meng, YANG Cheng-bin, et al. The influence and control of dip excavation on defornation of Operating Metro tunnel[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(3): 453-459.. (in Chinese))
    [12] 褚 峰, 李永盛, 梁发云, 等. 土体小应变条件下紧邻地铁枢纽的超深基坑变形特性数值分析[J]. 岩石力学与工程学报, 2010, 29(增刊1): 3184-3192. (ZHU Feng, LI Yong-sheng, LIANG Fa-yun, et al. Numerical analysis of deformation of deep excavation adjacent to metro considering small-strain stiffness of soil[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(S1): 3184-3192. (in Chinese))
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出版历程
  • 收稿日期:  2013-07-16
  • 发布日期:  2013-11-24

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