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考虑地层变异性和土体参数空间变异性的边坡可靠度全概率设计方法

邓志平, 牛景太, 潘敏, 彭友文, 崔猛

邓志平, 牛景太, 潘敏, 彭友文, 崔猛. 考虑地层变异性和土体参数空间变异性的边坡可靠度全概率设计方法[J]. 岩土工程学报, 2019, 41(6): 1083-1090. DOI: 10.11779/CJGE201906012
引用本文: 邓志平, 牛景太, 潘敏, 彭友文, 崔猛. 考虑地层变异性和土体参数空间变异性的边坡可靠度全概率设计方法[J]. 岩土工程学报, 2019, 41(6): 1083-1090. DOI: 10.11779/CJGE201906012
shu
DENG Zhi-ping, NIU Jing-tai, PAN Min, PENG You-wen, CUI Meng. Full probabilistic design method for slopes considering geological uncertainty and spatial variability of soil parameters[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(6): 1083-1090. DOI: 10.11779/CJGE201906012
Citation: DENG Zhi-ping, NIU Jing-tai, PAN Min, PENG You-wen, CUI Meng. Full probabilistic design method for slopes considering geological uncertainty and spatial variability of soil parameters[J]. Chinese Journal of Geotechnical Engineering, 2019, 41(6): 1083-1090. DOI: 10.11779/CJGE201906012
shu

考虑地层变异性和土体参数空间变异性的边坡可靠度全概率设计方法  English Version

  • 1. 南昌工程学院水利与生态工程学院,江西 南昌 330099;
    2. 南昌工程学院鄱阳湖流域水工程安全与资源高效利用国家地方联合工程实验室,江西 南昌 330099;
    3. 南昌工程学院土木与建筑工程学院,江西 南昌 330099

基金项目: 江西省教育厅科技项目（GJJ180958,GJJ161096）; 国家自然科学基金项目（51769017,51609114）
详细信息
    作者简介:

    邓志平(1990— ),男,江西南昌人,博士,讲师,主要从事岩土工程可靠度分析与风险控制方面的研究。E-mail: zhipingdeng10@126.com。

    通讯作者:

    牛景太，E-mail：niujingtai@163.com

  • 中图分类号: TU43

Full probabilistic design method for slopes considering geological uncertainty and spatial variability of soil parameters

  • 1. School of Water Resources and Ecological Engineering, Nanchang Institute of Technology, Nanchang 330099, China;
    2. National Provincial Joint Engineering Laboratory for the Hydraulic Engineering Safety and Efficient Utilization of Water Resources of Poyang Lake Basin, Nanchang 330099, China;
    3. College of Civil and Structure Engineering, Nanchang Institute of Technology, Nanchang 330099, China

摘要

    摘要
  • 摘要: 目前边坡稳定设计研究中大多数考虑了土体参数的空间变异性,但忽略了地层变异性的影响。为此,提出了一种同时考虑这两类变异性的边坡可靠度全概率设计方法。在全概率设计框架内,将广义耦合马尔可夫链模型与随机场模型相耦合用于同时表征地层变异性和土体参数空间变异性,给出了所提方法的计算流程。利用澳大利亚珀斯市钻孔资料,以某边坡为例进行可靠度设计,为说明在边坡可靠度设计中同时考虑地层变异性和土体参数空间变异性的重要性,分析了仅考虑土体参数空间变异的情况,进一步分析了同时考虑两类变异性的情况,并对二者进行了比较。结果表明：所提出的边坡可靠度设计方法能够有效地考虑边坡中存在的地层变异性和土体参数空间变异性。当仅考虑土体参数空间变异性时,边坡可靠度设计结果很大程度上取决于所采用地层的分布情况,特别是地层分布中抗剪强度较强土体类型占比高于真实情况时,将导致得到的最优设计方案偏于危险。反之,若地层分布中抗剪强度较弱的土体类型占比高于真实情况,得到的最优设计方案偏于保守。因此,为准确地得到最优设计方案,在边坡可靠度设计中应同时考虑地层变异性和土体参数空间变异性的影响。
    Abstract: The geological uncertainty is often ignored in slope reliability-based design, even though the spatial variability of soil parameters is considered. A full probabilistic design method is proposed for the slopes considering the geological uncertainty and spatial variability of soil parameters. In the full probabilistic design framework, a generalized coupled Markov chain model is combined with a random field model to simultaneously characterize the geological uncertainty and spatial variability of soil parameters. The procedure for this method is presented. A slope is taken as an example for the reliability-based design using the borehole data in Perth, Australia. In order to illustrate the importance of considering the geological uncertainty and spatial variability of soil parameters in the slope reliability-based design, the reliability design results associated with two cases, i. e. only considering the spatial variability of soil parameters and considering both types of uncertainties, are compared. The results indicate that the proposed method can effectively conduct the slope reliability-based design considering these two types of uncertainties. If only the spatial variability of soil parameters is considered, the reliability design results mainly depend on the used geological profiles. If the geotechnical practitioners infer a geological profile with a higher proportion of strong soil materials than the reality, the resulting optimal design scheme will lead to dangerous slope. In the opposite case, the resulting
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    • 参考文献(25)
  • [1] PHOON K K.Reliability-based design in geotechnical engineering: computations and applications[M]. UK: Taylor and Francis, 2008.
    [2] ELKATEB T, CHALATURNYK R, ROBERTSON P K.An overview of soil heterogeneity quantification and implications on geotechnical field problems[J]. Canadian Geotechnical Journal, 2003, 40(1): 1-15.
    [3] GRIFFITHS D V, FENTON G A.Probabilistic slope stability analysis by finite elements[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2004, 130(5): 507-518.
    [4] 苏永华, 赵明华, 邹志鹏, 等. 边坡稳定性分析的Sarma模式及其可靠度计算方法[J]. 水利学报, 2006, 37(4): 457-463.
    (SU Yong-hua, ZHAO Ming-hua, ZOU Zhi-peng, et al.Sarma model for slope stability analysis and its reliability degree calculation method[J]. Journal of Hydraulic Engineering, 2006, 37(4): 457-463. (in Chinese))
    [5] 胡群芳. 基于地层变异的盾构隧道工程风险分析及其应用研究[D]. 上海: 同济大学, 2006.
    (HU Qun-fang.Risk analysis and its application for tunnel works based on research of stratum and soil spatial variability[D]. Shanghai: Tongji University, 2006. (in Chinese))
    [6] 谭晓慧, 王建国, 刘新荣, 等. 边坡稳定的有限元可靠度计算及敏感性分析[J]. 岩石力学与工程学报, 2007, 26(1): 115-122.
    (TAN Xiao-hui, WANG Jian-guo, LIU Xin-rong, et al.Finite element reliability computation and sensitivity analysis of slope stability[J]. Chinese Journal of Rock Mechanics and Engineering, 2007, 26(1): 115-122. (in Chinese))
    [7] 祁小辉, 李典庆, 曹子君, 等. 考虑地层变异的边坡稳定不确定性分析[J]. 岩土力学, 2017, 38(5): 1385-1396.
    (QI Xiao-hui, LI Dian-qing, CAO Zi-jun, et al.Uncertainty analysis of slope stability considering geologic uncertainty[J]. Rock and Soil Mechanics, 2017, 38(5): 1385-1396. (in Chinese))
    [8] 邓志平, 李典庆, 曹子君, 等. 考虑地层变异性和土体参数变异性的边坡可靠度分析[J]. 岩土工程学报, 2017, 39(6): 986-995.
    (DENG Zhi-ping, LI Dian-qing, CAO Zi-jun, et al.Slope reliability analysis considering geological uncertainty and spatial variability of soil parameters[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(6): 986-995. (in Chinese))
    [9] LOEHR J E, FINLEY C A, HUACO D.Procedures for design of earth slopes using LRFD[R]. Columbia: University of Missouri, 2005.
    [10] 张璐璐, 张洁, 徐耀, 等. 岩土工程可靠度理论[M]. 上海: 同济大学出版社, 2011.
    (ZHANG Lu-lu, ZHANG Jie, XU Yao, et al.Reliability theory of geotechnical engineering[M]. Shanghai: Tongji University Press, 2011. (in Chinese))
    [11] PAIKOWSKY S G, BIRGISSON B, NGUYEN T, et al.Load and resistance factor design (LRFD) for deep foundations (National Cooperative Highway Research Program (NCHRP) Report 507)[R]. Washington D C: National Research Council, 2004.
    [12] KIM D, SALGADO R.Limit states and load and resistance design of slopes and retaining structures (Publication No. FHWA/IN/JTRP-2008/5, SPR-2634)[R]. West Lafayette: Joint Transportation Research Program, Indiana Department of Transportation and Purdue University, 2008.
    [13] SALGADO R, KIM D.Reliability analysis of load and resistance factor design of slopes[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2013, 140(1): 57-73.
    [14] PANTELIDIS L, GRIFFITHS D V.Integrating Eurocode 7 (load and resistance factor design) using nonconventional factoring strategies in slope stability analysis[J]. Canadian Geotechnical Journal, 2014, 51(2): 208-216.
    [15] BECKER D E.Eighteenth Canadian geotechnical colloquium: Limit states design for foundations, Part Ⅱ: Development for the national building code of Canada[J]. Canadian Geotechnical Journal, 1997, 33(6): 984-1007.
    [16] ORR T L L, FARRELL E R. Geotechnical design to Eurocode 7[M]. New York: Springer Science and Business Media, 2012.
    [17] HONJO Y, KUSAKABE O.Proposal of a comprehensive foundation design code: Geo-code 21 ver. 2[C]// Proceedings of the International Workshop on Foundation Design Codes and Soil Investigation in View of International Harmonization and Performance Based Design. Tokyo, 2002: 95-101.
    [18] LOW B K, PHOON K K.Reliability-based design and its complementary role to Eurocode 7 design approach[J]. Computers and Geotechnics, 2015, 65: 30-44.
    [19] WU S H, OU C Y Y, CHING J, et al. Reliability-based design for basal heave stability of deep excavations in spatially varying soils[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2012, 138(5): 594-603.
    [20] WANG Y, CAO Z.Expanded reliability-based design of piles in spatially variable soil using efficient Monte Carlo simulations[J]. Soils and Foundations, 2013, 53(6): 820-834.
    [21] 彭兴, 李典庆, 曹子君, 等. 基于蒙特卡洛模拟的岩质边坡可靠度设计方法[J]. 岩石力学与工程学报, 2016(增刊2): 3794-3804.
    (PENG Xing, LI Dian-qing, CAO Zi-jun, et al.Reliability-based design approach of rock slopes using Monte Carlo simulation[J]. Chinese Journal of Rock Mechanics and Engineering, 2016(S2): 3794-3804. (in Chinese))
    [22] 辛立光, 李典庆, 曹子君. 基于概率充分因子的高效土质边坡可靠度优化设计[J]. 武汉大学学报(工学版), 2016(5): 696-700.
    (XIN Li-guang, LI Dian-qing, CAO Zi-jun.Efficient reliability-based design optimization in soil slope using probability sufficiency factor[J]. Engineering Journal of Wuhan University, 2016(5): 696-700. (in Chinese))
    [23] PARK E.A multidimensional, generalized coupled Markov chain model for surface and subsurface characterization[J]. Water Resources Research, 2010, 46(11): 6291-6297.
    [24] 邓志平, 李典庆, 祁小辉,等. 基于广义耦合马尔可夫链的地层变异性模拟方法[J]. 岩土工程学报, 2018, 40(11): 2041-2050.
    (DENG Zhi-ping, LI Dian-qing, QI Xiao-hui, et al.Simulation of geological uncertainty using modified generalized coupled Markov chain[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(11): 2041-2050. (in Chinese))
    [25] LU Z, ZHANG D.Stochastic simulations for flow in nonstationary randomly heterogeneous porous media using a kl-based moment-equation approach[J]. Siam Journal on Multiscale Modeling & Simulation, 2007, 6(1): 228-245.
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出版历程
  • 收稿日期:  2018-05-27
  • 发布日期:  2019-06-24

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