可拓方法在岩石边坡整体安全评价中的应用  

APPLICATION OF EXTENICS METHOD TO COMPREHENSIVE SAFETY EVALUATION OF ROCK SLOPE

作　　者：谈小龙[1,2] 徐卫亚[1,2] 梁桂兰[3,4] 

机构地区：[1]河海大学岩土工程研究所,江苏南京210098 [2]河海大学岩土力学与堤坝工程教育部重点实验室,江苏南京210098 [3]河海大学交通学院 [4]河海大学海洋学院,江苏南京210098

出　　处：《岩石力学与工程学报》2009年第12期2503-2509,共7页Chinese Journal of Rock Mechanics and Engineering

基　　金：国家自然科学基金重点项目(50539110);国家科技支撑计划项目(2008BAB29B01,2006BAB04A02)

摘　　要：建立多层次多指标的岩石边坡整体安全综合评价体系,并给出岩石边坡整体安全等级标准以及相应评价指标的量值。应用物元的概念和可拓集合的关联函数,建立基于物元和关联函数的岩石边坡安全可拓评价方法,给出具体实现步骤并编程加以实现。将该方法应用于锦屏一级水电站左肩槽岩石高边坡的整体安全评价,经计算得出该边坡整体安全综合评价的级别特征值为4.001,安全等级为IV级,介于稳定与极稳定之间。岩石安全可拓评价方法全面综合地反映岩石边坡工程的整体安全状态,评价结果合理,该方法适用于岩石边坡施工期和运行期的安全评价。A multi-hierarchy and multi-index comprehensive evaluation system of rock slope is established; and the safety grade standard and the corresponding range of index are suggested as well. Based on matter element theory and the dependent function of extenics set, the extenics evaluation model for rock slope is proposed. Meanwhile, the detailed implementing approach is presented and the relevant numerical computation code is programmed. The method is applied to evaluating the comprehensive safety of the high rock slope on the left spandrel groove of Jinping I hydropower project. It is obtained that the grade eigenvalue is 4.001 and safety grade is Ⅳ which means that the comprehensive safety grade of the high rock slope is between hyper-stability and stability. This case has shown that the extenics evaluation model for rock safety is feasible to evaluate the safety of rock slope comprehensively. This method can be applied to evaluating rock slope during construction period of the project and operation period as well.

关 键 词：边坡工程 安全等级 评价模型 物元 可拓方法 

分 类 号：P642.22[天文地球—工程地质学]