摘要
考虑泄洪洞混凝土及进口岩体的物理力学性能,基于弹塑性本构模型和Drucker-Prager屈服准则,采用三维有限单元法,对泄洪洞建立力学模型并进行应力分析;应用强度折减系数法分析了进口边坡岩体稳定性,根据稳定判别依据得到了泄洪洞边坡稳定的安全系数。
Based on the elasticity-plasticity constitutive model and Drucker-Prager yield criteria,the spillway tunnel model is built and the stress analysis is studied with the application of 3-D FEM in considering the physical and mechanical properties of the concrete and the rock in entrance region.The slope rock stability is analysed using strength reduction coefficient method.The safety factor is obtained according to the stability criteria.
出处
《西安理工大学学报》
CAS
北大核心
2010年第4期454-458,共5页
Journal of Xi'an University of Technology
基金
国家自然科学基金资助项目(50778152)
关键词
泄洪洞
D-P模型
有限元强度折减系数法
稳定性分析
spillway tunnel
D-P model
strength reduction finite element method
stability analysis
