基于均匀设计的边坡敏感性灰色关联分析  

Grey Correlation Analysis of Slope Stability Sensitivity Base on Uniform Design

作　　者：陈高峰[1] 卢应发[1] 程圣国[1] 张红琼[1] 

机构地区：[1]三峡大学三峡库区地质灾害教育部重点实验室,443002

出　　处：《灾害与防治工程》2008年第1期1-6,共6页Disaster and Control Engineering

摘　　要：边坡工程是一个非线性的复杂系统,常用的线性分析模型不能够真实地反映边坡的客观规律。基于均匀设计的边坡稳定性影响因素灰色关联分析不仅考虑了各因素间的交互作用,而且用非线性的数据评价模型来分析试验结果,较真实地反映了边坡的破坏规律。以一均质土坡为例,选取容重、内摩擦角、黏聚力、坡角、地震加速度等5个因素为子序列,稳定性系数为母序列设计数值试验和灰色关联分析。结果表明在抗震设防烈度为7度以下的一般岩土体地区的常见均质土坡或松散堆积体岩土质边坡中,各因素对稳定性的关联度大小依次为:黏聚力>内摩擦角>地震加速度>重度>坡角,该结论对边坡工程治理具有一定的指导意义。Slope is a nonlinearity complicated system. Simulation evaluation using linear analysis can＇t full disclosure the objective laws of slope. Uniform design and grey correlation analysis were brought in to analyze the sensitivity of slope stabilizing factors. The interaction effect of the influencing factors was accounted, and the objective laws of slope were concluded. Five influence factors, respectively the density of soil, angle of internal friction, cohesion, angle of slope, acceleration of earthquake, were selected as the slope stabilizing factors in the example. It is concluded that sequence list of the associated metric are the cohesion, the angle of internal friction, the acceleration of earthquake, the density of soil, the angle of slope. The conclusion can be used in the comprehensive treatment, security monitoring and disaster forecasting of slope.

关 键 词：敏感性分析 灰色关联分析 均匀设计 边坡稳定性 

分 类 号：TU457[建筑科学—岩土工程] N94[建筑科学—土工工程]