锦屏一级特高拱坝工作性态仿真与反演分析
发布时间：2018-09-06 15:49
【摘要】：锦屏一级拱坝坝高305 m,运用有限元仿真分析方法模拟了锦屏一级特高拱坝自第一仓混凝土浇筑至蓄水运行全过程,基于监测资料对后期发热温升、坝体与基础弹性模量等主要热力学参数进行了反演分析,并对下一阶段蓄水的工作性态进行了预测。计算结果表明,锦屏一级拱坝后期发热温升约为5~6℃,短期蓄水过程中混凝土和地基弹性模量约为设计初始值的1.65倍左右。在水位上升至1 880 m时,径向最大变形出现在1 730.0 m高程的PL13-4监测点。预测值与监测值吻合较好,证明仿真分析成果能基本反映大坝实际工作性态,分析结果也为其他特高拱坝的设计提供了参考。
[Abstract]:The dam height of Jinping first grade arch dam is 305 m. The whole process of concrete pouring from the first storehouse to the storage of the dam is simulated by using the finite element simulation analysis method. Based on the monitoring data, the temperature rise of the later stage is analyzed. The main thermodynamic parameters such as elastic modulus of dam and foundation are inversed and the working behavior of water storage in the next stage is predicted. The results show that the temperature rise of the first grade arch dam is about 5 ~ 6 鈩，
本文编号：2226821
[Abstract]:The dam height of Jinping first grade arch dam is 305 m. The whole process of concrete pouring from the first storehouse to the storage of the dam is simulated by using the finite element simulation analysis method. Based on the monitoring data, the temperature rise of the later stage is analyzed. The main thermodynamic parameters such as elastic modulus of dam and foundation are inversed and the working behavior of water storage in the next stage is predicted. The results show that the temperature rise of the first grade arch dam is about 5 ~ 6 鈩，
本文编号：2226821
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