摘要
边坡失稳是一定区域内的地质环境条件相互作用不断演化的结果,对边坡的稳定性评价时需要考虑多种因素。本文以镇江地区下蜀土边坡的稳定性影响因素和评价方法为主要研究对象,采用粗糙集属性约简理论得到对边坡影响较大的6项影响因素;通过建立影响因素相互作用关系矩阵,得出影响因素相互作用对边坡稳定性的影响程度和重要性程度以及权重值。最后建立边坡稳定性评价指标及量化标准,并确定SII指数的计算方法及对应的边坡稳定性分级,从而形成镇江地区下蜀土边坡稳定性的综合评价方法,为该地区边坡稳定评价提供依据。
Slope instability is the result of the continuous evolution of the interaction of geological environment conditions in a certain area,so many factors should be considered when evaluating the stability of a slope.In this paper,the influence factors and evaluation methods of Xiashu loess slope stability in Zhenjiang are taken as the main research objects.Using the attribute reduction of rough set theory,six influencing factors are obtained.The influence degree,importance degree and weight value of influencing factors interaction on slope stability are received by establishing an interaction matrix of influencing factors.Finally,the evaluation index and quantitative standard of slope stability were established,and the calculation method of SII index and the corresponding slope stability classification were determined.As a result,a comprehensive evaluation method for the stability of the Xiashu loess slope in Zhenjiang area is developed,which provide a basis for the slope stability evaluation in this area.
作者
瞿婧晶
陆燕
吴曙亮
刘健
苟富刚
QU Jingjing;LU Yan;WU Shuliang;LIU Jian;GOU Fugang(Key Laboratory of Earth Fissure and Geological Disaster Ministry of Land and Resources(Geological Survey of Jiangsu Province),Nanjing,Jiangsu 210049,China)
出处
《中国地质灾害与防治学报》
CSCD
2021年第1期35-42,共8页
The Chinese Journal of Geological Hazard and Control
基金
江苏省地质勘查基金“镇江城市地质资源与环境”(苏财建[2011]425号)。
