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高陡岩质斜坡深层变形的数值分析【作者】陈海军 【导师】郦能惠

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【作者】陈海军导师郦能惠水利论文)s!NO1ZRx$?
【作者基本信息】南京水利科学研究院,岩土工程,2002年,博士

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【中文摘要】 深层变形是斜坡岩体长期处于重力不稳定状态发生蠕动而产生的影响范围较广、深度较大的一种特殊的复杂的斜坡岩体变形,主要发育于高陡岩质斜坡。斜坡岩体深层变形的研究对山区防灾减灾以及水利水电工程等基础设施建设具有重大意义。 论文首先综述了斜坡岩体变形破坏的研究现状,接着深入分析国内外典型的斜坡岩体深层变形实例,指出反倾层状岩质斜坡的深层变形实质上是斜坡的倾倒变形。然后运用数值计算分析技术,成功模拟了高陡岩质斜坡深层变形的形成和发展过程,揭示了斜坡岩体深层变形的基本条件、主控因素及其力学机理。在系统深入地研究锦屏一级水电站左岸斜坡岩体和向家坝水电站马步坎高边坡岩体的地质和岩体力学环境的基础上,建立岩体结构力学模型,分别采用块体可充分变形离散元法和大变形非线性有限元法对其深层变形进行数值计算分析,为研究深层变形破裂的斜坡岩体稳定性评价奠定基础。水利论文3K-^[$Z0zcX

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【英文摘要】 Deep-seated deformation is a specific and complicated deformation of high-steep rock slopes, when they are subjected to a gravitationally unstable state for a long period. Although it has been described worldwide starting several tens years ago, its research can still be considered in its youth. The study on deep-seated deformation of rock slopes can play important role in prevention and mitigation of geo-hazards and construction of infrastructures in mountainous areas.The state-of-art of slope deformation and failure is reviewed firstly in thesis, then typical cases of deep-seated slope deformation collected from abroad and home are analyzed deeply, and it is pointed out that deep-seated deformation in anaclinal strata rock slope is toppling deformation in fact. Numerical analysis of continuum model and discontinuum model are performed to simulate the formation and developmental stages of deep-seated deformation of rock slopes, and the conditions under which deep-seated deformation of...更多 rock slope occur, the triggering and controlling factors and mechanism of deep-seated deformation also be investigated. The deep-seated slope deformation in left abutment of No:l Jingping Hydropower Station and in Mabukan high slope of Xiangjiaba Hydropower Station are simulated deeply by block deformable distinct element method and large deformation, nonlinear finite element method respectively, based on the systematic study on the engineering geological characters of two slopes.  还原

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【中文关键词】 深层变形; 倾倒; 斜坡稳定; 数值分析; 有限元法; 离散元法; 锦屏一级水电站; 向家坝水电站水利论文%U7D b c"m
【英文关键词】 deep-seated deformation; toppling; slope stability; numerical analysis; finite element method; distinct element method; No:1 Jingping Hydropower Station; Xiangjiaba Hydropower Station
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TAG: 导师 郦能惠 数值分析 陈海军 斜坡
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