摘要
基于岩体开挖的卸载特性,引入岩体的加卸载判断准则,建立了卸载岩体的脆弹塑性本构模型,并应用于小湾水电工程坝肩槽开挖高边坡的稳定性分析,揭示了该边坡的开挖卸载效应,以及工程的整体稳定性。
Based on unloading characteristics of rockmasses during excavation,this paper presents a criterion for loaded and unloaded mechanisms,and establishes a brittle elastoplasticity model of rocks. The model and criterion are then applied to a stability analysis of excavated high slope of the Xiaowan hydropower station project. The combination of the model and criterion with a three-dimensional nonlinear finite element method provides a technique for the selection and optimization of reinforcement measures.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2004年第7期1082-1086,共5页
Chinese Journal of Rock Mechanics and Engineering
关键词
岩石力学
卸载岩体
高边坡
开挖
脆弹塑性模型
三维有限元
rock mechanics,unloaded rockmass,loading and unloading criterion,brittle elastoplasticity model,3D FEM,high slope excavation
