摘要
某水电站引水发电系统电站进水口、尾水渠开挖形成左岸高边坡,其稳定性对电站安全运行影响重大。以有限元计算程序ADINA为平台,建立开挖高边坡的三维模型。基于卸荷岩体力学理论与方法,综合考虑了初始、开挖、卸荷、加固、蓄水、降雨和地震等多种复杂工况,研究边坡施工期和运行期的变形、应力、塑性区大小及分布状况。对边坡稳定性进行评价,并对加固措施提出建议。
The intake and tailrace channel excavation of a hydropower station forms a high slope on the left bank.The slope stability has major impact on the safe operation of power station.A three-dimensional model based on unloading rock mass mechanics theory was established for the simulation of slope excavation by using the finite elemental program of ADINA.The model considered the initial conditions,excavation,unloading,consolidation,water storage,rainfall and earthquakes.The deformation,stress and the size and distribution of plastic zone under construction and operating periods were analyzed,the stability of slope was assessed and the reinforcement measures were proposed.
出处
《水力发电》
北大核心
2010年第4期34-36,共3页
Water Power
基金
国家自然科学基金项目(90610029)
湖北省教育厅自然科学研究项目计划(Q20091301)
三峡大学青年基金项目(KJ2009A005)
关键词
卸荷
高边坡
有限元
极限平衡
unloading
high slope
finite element
limit equilibrium
