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岩质边坡稳定的体系可靠度分析及工程应用
Systematic Reliability Analysis of Rock Slope Stability and Its Engineering Application
- 工程科学与技术 2008年40卷第2期 页码：32-37
- 作者机构：
1. 四川大学 水利水电学院四川,成都,610065
2. 四川大学 水力学与山区河流开发保护国家重点实验室四川,成都,610065
- 作者简介：
- 基金信息：国家自然科学基金委员会、二滩水电开发有限责任公司雅砻江水电开发联合研究基金项目（50539060）
DOI：
中图分类号：纸质出版日期：2008，
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吴震宇,陈建康,许唯临.岩质边坡稳定的体系可靠度分析及工程应用[J].工程科学与技术,2008,40(2):32-37.
Systematic Reliability Analysis of Rock Slope Stability and Its Engineering Application[J]. Advanced Engineering Sciences, 2008,40(2):32-37.
摘要
中文摘要: 对岩质边坡存在多个滑动面时的体系可靠度进行分析，可以对边坡的稳定性作出更加合理的评价。采用非线性有限单元法，通过降低岩体的强度参数，寻找边坡的潜在滑动面，并定义滑动面上所有单元同时破坏时，作为边坡的失稳模式；针对岩体破坏的特点，按Druker Prager屈服准则和单轴抗拉强度准则构建失稳模式中单元的功能函数，再采用响应面法和蒙特卡罗法计算单元的可靠指标和相关系数；单一失稳模式是由滑动面上的单元组成的并联体系，为此，研究了一种逐步等效线性化求交法用于计算单一失稳模式的可靠指标；最后，用Ditlevsen窄界限公式估算由各失稳模式组成的串联体系的可靠指标。上述方法得到的可靠指标可用于边坡的稳定性评价。作为工程实例，对某水电站左岸坝肩边坡的体系可靠度进行了分析和评价，验证了本方法的合理性和可行性。
Abstract
Abstract:Stability can be evaluated more reasonably by analysis of systematic reliability of rock slope with various sliding surfaces. Using nonlinear FEM
the possible sliding surfaces could be found by reducing rock strength
and a failure mode is defined that all the elements of the sliding surface are destroyed synchronously; According to Druker Prager yield rule and uniaxial tensile rule
the performance functions of elements are built
the reliability indexes and correlation coefficients are computed by response surface method and Monte Carlo method; Each failure mode is a parallel system consist of the elements of each sliding surface
so a stepping equivalent linear method was researched to calculate the reliability index of each failure modeFinally
the reliability index of the series system composed by all failure modes can be estimated by Ditlevsen narrow bound method. The reliability index gained from the above method can be applied to appraise slope stability. For example
the systematic reliability of a slope was analyzed
which shows the method is rational and feasible.
关键词
岩质边坡可靠度有限元响应面法蒙特卡罗法
Keywords
rock slopereliabilityfinite elementresponse surface methodMonte Carlo method
references
Liu Mingwei,He Guangchun.Reliability analysis of soil slope stability based on Monte-Carlo method[J].Journal of Chongqing Jianzhu University,2001,23(5):96-99.[刘明维,何光春.基于蒙特卡罗法的土坡稳定可靠度分析[J].重庆建筑大学学报,2001,23(5):96-99.]
Zhou Jiangping,Peng Xiongzhi,Zhao Shanrui.Stability reliability of earth and rock-filled high dams on complex foundations[J].Journal of Southwest Jiaotong University,1998,33(5):544-549.[周江平,彭雄志,赵善锐.复杂地基上高土石坝坝体稳定可靠度分析[J].西南交通大学学报,1998,33(5):544-549.]
Zhang Sherong,Jia Shijun,Guo Huaizhi.Reliability analysis of the rock slope stability[J].Rock and Soil Mechanics,1999,20(2):57-66.[张社荣,贾世军,郭怀志.岩石边坡稳定的可靠度分析[J].岩土力学,1999,20(2):57-66.]
Fu Xudong,Qian Pingyi,Liu Zude.The reliability analysis for slope stability by perturbation stochastic finite element method[J].Rock and Soil Mechanics,2001,22(4):413-418.[傅旭东,茜平一,刘祖德.边坡稳定可靠性的随机有限元分析[J].岩土力学,2001,22(4):413-418.]
Liu Ning,Zhuo Jiashou.3-D stochastic FEM and reliability analysis of joint rock[J].Chinese Journal of Rock Mechanics and Engineering,1995,14(4):297-305.[刘宁,卓家寿.节理岩体的三维随机有限元及可靠度计算[J].岩石力学与工程学报,1995,14(4):297-305.]
Tan Xiaohui,Wang Jianguo.Slope reliability analysis using elasto-plastic finite element method[J].Chinese Journal of Geotechnical Engineering,2007,29(1):44-50.[谭晓慧,王建国.边坡的弹塑性有限元可靠度分析[J].岩土工程学报,2007,29(1):44-50.]
Liu Mingwei,Zheng Yingren.Determination methods of multi-slip surfaces landslide based on strength reduction FEM[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(8):1544-1549.[刘明维,郑颖人.基于有限元强度折减法确定滑坡多滑动面方法[J].岩石力学与工程学报,2006,25(8):1544-1549.]
Wu Qingxi,Yu Xiaozheng,Zhao Kuizhi.Response surface method and its application in reliability analysis of concrete-faced rockfill dam[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(9):1506-1511.[武清玺,俞晓正,赵魁芝.响应面法及其在混凝土面板堆石坝可靠度分析中的应用[J].岩石力学与工程学报,2005,24(9):1506-1511.]
Yan Lixin,Kang Hongpu,Gao Qian.Reliability analysis based on response surface function and its application in a chamber[J].Rock and Soil Mechanics,2001,22(3):327-329.[颜立新,康红普,高谦.基于响应面函数的可靠度分析及其应用[J].岩土力学,2001,22(3):327-329.]
Xiong Tiehua,Chang Xiaolin.Application of 3-D stochastic FEM based on response surface in large structure reliability analysis[J].Engineering Journal of Wuhan University,2005,38(1):125-128.[熊铁华,常晓林.基于响应面的三维随机有限元法在大型结构可靠度分析中的应用[J].武汉大学学报:工学版,2005,38(1):125-128.]
Ditlevsen O.Narrow reliability bounds for structural system[J].Strut Mech,1979,4(1):117-122.
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