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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。
Based on the characteristics of Jinfo Mountain Asphalt Concrete Core Dam, the Duncan-Chang EB nonlinear elastic model is used to calculate the stress and deformation of the dam under the four finite element schemes. The optimal calculation scheme is selected, and then the scheme is completed The stress and deformation of the dam body, the stress distribution of the core wall and the foundation and the possibility of hydraulic fracturing of the core wall during and during the construction are analyzed. The results show that the stress of the dam body, the stress of the core wall and the foundation can meet the operating requirements under all operating conditions.