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Volume 35 Issue zk2
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FU Fang, ZHAO Cheng-gang, LI Wei-hua, ZHANG Wei-hua. Numerical simulation of stability of unsaturated soil slopes under earthquakes[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 408-414.
Citation: FU Fang, ZHAO Cheng-gang, LI Wei-hua, ZHANG Wei-hua. Numerical simulation of stability of unsaturated soil slopes under earthquakes[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(zk2): 408-414.
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Numerical simulation of stability of unsaturated soil slopes under earthquakes

  • School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China

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  • Received Date: June 17, 2013
  • Published Date: November 24, 2013
    Graphical Abstract
    • Abstract
  • Based on the soil-water characteristic curve of unsaturated soils, a new formula for strength of unsaturated soils taking into account the influence of matric suction and volumetric water content simultaneously is established. The strength reduction FEM is introduced into the stability analysis of unsaturated soil slopes in which the generalized cohesion of unsaturated soils and internal friction angle of saturated soils are adopted as strength parameters. Without considering the change of water content (or saturation) and matric suction under short-term seismic loading, a static and dynamic finite element method for analyzing the seismic stability of unsaturated soil slopes is established. The effect of foundation radiation damping on seismic response is simulated by combing viscoelastic artificial boundary. The seismic stability analysis is validated through numerical simulations in which the finite element calculation, convergence of time-history of relative displacement on key points and plastic zone distribution are used to judge the dynamic stability of the slopes. The analyses show that although the matric suction has significant effect on the static stability of unsaturated soil slopes, the earthquake force still plays a leading role in the seismic stability analysis of the slopes.
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    • References (21)
  • [1]
    郑颖人, 赵尚毅, 李安洪, 等. 有限元极限分析法及其在边坡中的应用[M]. 北京:人民交通出版社, 2011. (ZHENG Ying-ren, ZHAO Shang-yi, LI An-hong, et al. FEM limit analysis and its application in slope engineering[M]. Beijing: China Communications Press, 2011. in Chinese))
    [2]
    言志信, 张 森, 张学东, 等. 地震边坡失稳机理及稳定性分析[J]. 工程地质学报, 2010, 18(6): 844-850. (YAN Zhi-xin, ZHANG Sen, ZHAGN Xue-dong, et al. Failure mechanism and stability analysis of slope under earthquake[J]. Journal of Engineering Geology, 2010, 18(6): 844-850. (in Chinese))
    [3]
    包承纲, 詹良通. 非饱和土性状及其与工程问题的联系[J].岩土工程学报, 2006, 28(2): 129-136. (BAO Cheng-gang, ZHAN Liang-tong. Relationship between unsaturated soil behavior and engineering problems[J]. Chinese Journal of Geotechnical Engineering, 2006, 28(2): 129-136. (in Chinese))
    [4]
    郭 璇, 赵成刚, 于威威. 非饱和土边坡稳定的安全分析及进展[J]. 中国安全科学学报, 2005, 15(1): 14-18. (GUO Xuan, ZHAO Cheng-gang, YU Wei-wei. Stability analysis of unsaturated soil slope and its progress[J]. China Safety Science Journal, 2005, 15(1): 14-18. (in Chinese))
    [5]
    FREDLUND D G, RAHARDJO H. Soil mechanics for unsaturated soils[M]. New York: Wiley, 1993.
    [6]
    LI Jin-yu, YANG Qing, LUAN Mao-tian. Limit equilibrium analysis of the influence of matric suction on unsaturated soil slope stability[J]. Journal of Convergence Information Technology, 2010, 5(10): 167-175.
    [7]
    李荣建, 郑 文, 王莉平, 等. 非饱和土边坡稳定性分析方法研究进展[J]. 西北地震学报, 2011, 22(增刊): 2-9. (LI Rong-jian, ZHENG Wen, WANG Li-ping, et al. Progress and developing trend on stability analyses of unsaturated soil slope[J]. Northwestern Seismological Journal, 2011, 22(S0): 2-9. (in Chinese))
    [8]
    BOMMER J J, ROLO R, MITROULIA A, et al. Geotechnical properties and seismic slope stability of volcanic soils[C]// Proceedings of 12th European Conference on Earthquake Engineering. Elsevier Science Ltd, 2002.
    [9]
    BISHOP A W, BLIGHT G E. Some aspects of effective stress in saturated and unsaturated soil[J]. Géotechnique, 1963, 13(3): 177-197.
    [10]
    FREDLUND D G, MORGENSTERN N R, WIDGER R A. Shear strength of unsaturated soil[J]. Canadian Geotechnical Journal, 1978, 15(3): 312-321.
    [11]
    陈敬虞, FREDLUND D G. 非饱和土抗剪强度理论的研究进展[J]. 岩土力学, 2003, 24(增刊): 655-660. (CHEN Jing-yu, FREDLUND D G. Advance in research on shear strength of unsaturated soils[J]. Rock and Soil Mechanics, 2003, 24(S0): 655-660. (in Chinese))
    [12]
    WHEELER S J, SHARMA R S, BUISSON M S R. Coupling of hydraulic hysteresis and stress-strain behavior in unsaturated soils[J]. Géotechnique, 2003, 53(1): 41-51.
    [13]
    赵成刚, 韦昌富, 蔡国庆. 土力学理论的发展和面临的挑战[J]. 岩土力学, 2011, 32(12): 3521-3540. (ZHAO Cheng-gang, WEI Chang-fu, CAI Guo-qing. Development and challenge for soil mechanics[J]. Rock and Soil Mechanics, 2011, 32(12): 3521-3540. (in Chinese))
    [14]
    张雪冬. 土水特征曲线及其在非饱和土力学中应用的基本问题研究[D]. 北京: 北京交通大学, 2010. (ZHANG Xue-dong. Research on the principle problem relating to soil-water characteristic curve and its application in unsaturated soil mechanics[D]. Beijing: Beijing Jiaotong University, 2010. (in Chinese))
    [15]
    FENG M, FREDLUND D G. Hysteretic influence associated with thermal conductivity sensor measurements[C]// Proceedings from Theory to the Practice of Unsaturated Soil Mechanics in Association with the 52nd Canadian Geotechnical Conference and the Unsaturated Soil Group. Regina, Sask, 1999: 651-657.
    [16]
    FREDLUND D G, XING A. Equations for the soil-water characteristic curve[J]. Canadian Geotechnical Journal, 1994, 31(3): 521-532.
    [17]
    ESCARIO V. Suction-controlled penetration and shear tests[C]// Proceedings of the 4th International Conference on Expansive Soils (ASCE). Denver, 1980: 781-797.
    [18]
    杜修力, 赵 密, 王进廷. 近场波动模拟的人工应力边界条件[J]. 力学学报, 2006, 38(1): 49-56. (DU Xiu-li, ZHAO Mi, WANG Jin-ting. A stress artificial boundary in FEA for near-field wave problem[J]. Chinese Journal of Theoretical and Applied Mechanics, 2006, 38(1): 49-56. (in Chinese))
    [19]
    刘晶波, 吕彦东. 结构-地基动力相互作用问题分析的一种直接方法[J]. 土木工程学报, 1998, 31(3): 55-64. (LIU Jing-bo, LÜ Yan-dong. A direct method for analysis of dynamic soil-structuree interaction[J]. China Civil Engineering Journal, 1998, 31(3): 55-64. (in Chinese))
    [20]
    FREDLUND D G. Unsaturated soil mechanics in engineering practice[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2006, 132(3): 286-321.
    [21]
    吴俊杰, 王成华, 李广信. 非饱和土基质吸力对边坡稳定的影响[J]. 岩土力学, 2004, 25(5): 732-744. (WU Jun-jie, WAGN Cheng-hua, LI Guang-xin. Influence of matric suction in unsaturated soils on slope stability[J]. Rock and Soil Mechanics, 2004, 25(5): 732-744. (in Chinese))
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