基于数量化理论的岩堆稳定性评价模型  

MODEL BASED QUANTIFICATION THEORY FOR STABILITY ASSESSMENT OF ROCK DEBRIS SLOPES

作　　者：胡力绳[1,2] 王建秀[1] 叶冲[1,2] 

机构地区：[1]同济大学岩土及地下工程教育部重点实验室,上海200092 [2]同济大学地下建筑与工程系,上海200092

出　　处：《工程地质学报》2009年第2期258-262,共5页Journal of Engineering Geology

基　　金：国家自然科学基金雅砻江水电联合研究基金(50579097)

摘　　要：影响岩堆稳定的定性因素难以在极限平衡、数值分析中全面反映和定量表述。数量化理论可通过定性指标定量化,充分考虑定性指标的影响。基于数量化理论,提出岩堆稳定性评价模型。根据岩堆组成物质及内部颗粒接触情况进行结构分类;基于主因素分析,采用岩石单轴饱和抗压强度(分为四级)、岩堆结构(分为四级)、地形坡度(分为三级)及地下水发育情况(分为二级)4个评价指标建立了岩堆稳定性评价模型。模型在云南水富-麻柳湾高速公路中的应用成果表明:影响岩堆稳定性的主要因素是岩堆结构、岩石强度和地下水。Some qualitative factors influencing the stability of rock debris slopes are difficult to be quantified using limit equilibrium and numerical analysis methods. Quantification theory can take full consideration about the influence of qualitative factors and can be used to quantify them. Based on the quantification theory, the stability assessment model of rock debris slopes are presented. According to the material composes of rock debris slopes and the contact condition of inner particles, the structural classification of rock debris slopes are presented. Based on the main factors analysis, four evaluation indexes are proposed to establish the stability assessment model. The four indexes are （ a ） the saturated uniaxial compressive rock strength （ divided into four levels ）, （ b ） the structure of rock debris （ divided into three levels ）, （ c ） the slope of ground surface （ divided into three levels ）, and （ d ） the conditions of groundwater ）divided into two levels）. The application of the model to Yunnan Shuifu - Maliuwan highway acquired a sort of predicted values. They have a good agreement with the measured values. The model can be used for the stability assessment of similar projects.

关 键 词：道路工程 稳定性评价模型 数量化理论 岩堆 

分 类 号：P642[天文地球—工程地质学]