层状岩质边坡倾倒变形破坏特征研究  

Study of toppling deformation and failure characteristics of stratified rock slope

作　　者：刘海军 巨能攀[2] 赵建军[2] 张雪燕 

机构地区：[1]中国建筑西南勘察设计研究院有限公司,四川成都610052 [2]成都理工大学地质灾害防治与地质环境保护国家重点实验室,四川成都610059

出　　处：《合肥工业大学学报（自然科学版）》2017年第6期793-798,共6页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(41102190)

摘　　要：文章在层状岩质边坡倾倒变形破坏地质现象调查分析和模拟试验的基础上,借用物理学概念定义了边坡倾倒变形角位移ω,并运用数理统计等方法对倾倒变形边坡岩体结构、倾倒岩体折断面形态和岩层倾角变化进行系统研究。研究表明层状边坡弯曲—倾倒—折断破坏后岩体具有不同的结构特征,并以此对边坡倾倒变形强烈程度进行分类;岩体折断面的形态可概括为直线、折线和近弧线等3种类型,以折线最为常见;倾倒变形岩体层面倾角与坡高呈"负指数"关系,建立了以倾倒岩体角位移ω为核心的山区岩质边坡倾倒变形强烈程度分级体系。Based on the investigation and simulation test of toppling deformation phenomenon in stratified rock slope, the study on rock mass structure, fracture surface form of rock mass toppling and changes of strata dip about rock slope toppling deformation was performed by using physics concept to define angular rotation co caused by slope toppling and with methods such as mathematical statistics. The results showed that the rock mass had different structural features after the stratified slope curved, toppled over, broke off and destroyed. It was classified on the basis of the relationship be- tween the structural features of rock mass and the intensity of side slope toppling over. In summary, the fracture surface morphology could be classified as three types： straight line, broken line and near- ly arc, among which the broken line was the most common. There was a negative exponent relation ship between the inclination of rock layer toppling and slope height. The classification system of rock slope toppling deformation was built based on the angular rotation oJ of rock mass toppling in the mountains.

关 键 词：反倾边坡 倾倒变形 角位移 岩体特征 

分 类 号：TU457[建筑科学—岩土工程]