边坡开挖支护有限元模拟及稳定性分析  

Finite element simulation and stability analysis of excavation and support of side slope

作　　者：徐华敏[1] 张萍[2] 董磊华[2] 唐小松[2] 

机构地区：[1]浙江省水利水电技术咨询中心,杭州310020 [2]武汉大学水资源与水电工程科学国家重点实验室,武汉430072

出　　处：《中国农村水利水电》2009年第8期87-90,共4页China Rural Water and Hydropower

基　　金：国家自然基金重点项目(50639040);国家"863"计划(2006AA06Z342);湖北省自然基金(2005ABA290)

摘　　要：边坡开挖将对边坡的稳定性产生不利影响,加锚支护则可以提高边坡稳定性。基于锚固岩体的流变模型,采用弹塑性有限元法对边坡开挖加固进行了数值模拟,分析了开挖边坡的稳定性,并对初拟的边挖边锚的施工程序的合理性进行了评价,提出了若干对工程建设具有一定指导意义的建议。The excavation will do harm to the stability of side slope of hydropower plant. It＇s a good way to reinforce rock mass to improve the stability of the side slope. Based on an elastoplastic constitutive model of rock mass reinforced with rock bolts and cables, numerical simulations are performed by elastoplastic FEM to evaluate the stability of side slope during slope excavation, reinforcement and under Seismic loading, and to evaluate the effectiveness of a suggested construction procedure of anchoring immediately after excavation. Finally, several suggestions that may be helpful to the stability of side slope, are presented.

关 键 词：锚固岩体 开挖 支护 弹塑性有限元 稳定性分析 

分 类 号：TU472[建筑科学—结构工程]