摘要
基于金佛山沥青混凝土心墙坝的特点,采用邓肯—张E-B非线性弹性模型计算了4种有限元计算方案下大坝的应力变形情况,选出了最优计算方案,进而对该方案下竣工期和施工期的坝体应力变形、心墙和基座应力分布及心墙水力劈裂发生的可能性进行了分析。结果表明,坝体应力变形、心墙和基座应力均能满足各工况下的运行要求。
According to the characteristics of Jinfoshan asphalt concrete core dam, Duncan-Chang E-B nonlinear elastic model is used to calculate the stress and deformation of the dam at the conditions of 4 finite element schemes. And the optimal calculation scheme is selected. Then, it analyzes the deformation and stress of the dam body, stress distribution of core wall and base and the possibility of core wall of hydraulic fracturing during the completion period and storage period. The results indicate that the deformation and stress of the dam body, the core and base stress can meet the operation reauirements under various operating conditions.
出处
《水电能源科学》
北大核心
2013年第5期55-58,共4页
Water Resources and Power
关键词
沥青混凝土心墙坝
应力变形
水力劈裂
有限元
asphalt concrete core dam
stress and strain
hydraulic fracturing
finite element
