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合现场工程实际问题 ,回顾和总结了前人的研究成果 ,针对边坡工程稳定性评价和工程设计提出了边坡工程稳定性耦合分析理论和方法。主要研究内容包括 :(1)创建了边坡工程状态模型的概念 ,它更能全面地反映边坡工程的各类属性和边界条件 ,以及边坡稳态的不确定性和变化性。边坡工程状态模型是指构成边坡的各要素属性及其赋存环境的地质、力学特征的综合 ,主要由 3方面组成 ,即边坡的几何属性、边坡的物理力学属性和边坡的环境属性。(2 )在Sarma法和MSARMA法基础上 ,进一步推导了考虑边坡坡面加固力和非齐次边界条件下的边坡稳定系数计算公式 ,该公式适用于各类边界条件和附加荷载作用下的边坡稳态评价 ,是Sarma法更普遍的形式。研究表明 ,边坡稳态MSARMA分析方法基本假设条件少 ,数学推导严密 ,适用于具有复杂岩土体结构的边坡稳态评价和工程设计。(3)研究了边坡岩土体物理力学参数、地下水、地震和工程力学等因素的动态影响规律 ,特别建立和研究了工程排水和自然排水模式对边坡稳态的影响。形成了考虑多因素复杂状态下边坡稳态敏感性分析的系列方法和相应的评价分析软件系统。(4 )论述了边坡可靠性分析输入概率模型的确定方法 ,并对边坡可靠性蒙特卡洛模拟法的基本思想、模拟步骤、误差估计和收敛性检验
According to the practical problems of on-site engineering, the research achievements of predecessors are reviewed and summarized. Based on the stability evaluation and engineering design of slope engineering, the theory and method of coupled stability analysis of slope engineering are proposed. The main contents include: (1) The concept of slope engineering state model was created, which can more fully reflect all kinds of attributes and boundary conditions of slope engineering, as well as the uncertainty and variability of slope stability. The state model of slope engineering refers to the synthesis of the geological and mechanical features of each elemental attribute and the environment in which the slope is composed, and is mainly composed of three aspects, that is, the geometric attributes of the slope, the physical and mechanical properties of the slope, Environment properties. (2) Based on the Sarma method and the MSARMA method, the formulas for calculating the slope stability factor considering the reinforcement force and the nonhomogeneous boundary conditions are further derived. The formulas are applicable to all kinds of boundary conditions and additional loads The slope stability assessment is a more general form of the Sarma method. The research shows that the steady-state MSARMA analysis method has few basic assumptions and strict mathematical derivation, and is suitable for slope stability assessment and engineering design with complex rock-soil structure. (3) Dynamic laws of physical and mechanical parameters of slope rock and soil, groundwater, earthquake and engineering mechanics are studied, especially the influence of engineering drainage and natural drainage patterns on slope stability is studied. Formed a series of methods and corresponding evaluation and analysis software system considering the sensitivity analysis of slope stability under multi-factor and complex conditions. (4) Discusses the method to determine the input probabilistic model of slope reliability analysis, and analyzes the basic idea, simulation procedure, error estimation and convergence test of slope reliability Monte Carlo simulation method