藏木水电站大坝混凝土施工期温控防裂标准与措施动态优化分析

为解决高海拔、大温差高原地区混凝土坝的温控防裂问题,对西藏地区建设的首座百米级混凝土重力坝大型水电工程施工期大坝混凝土防裂研究进行总结和梳理。基于藏木水电工程大坝施工阶段现场监测资料,采用全过程动态跟踪反馈仿真分析技术,全过程反映大坝施工期的真实工作性态。根据仿真分析结果,对后期可能出现的各种风险进行预测,并对相关的标准和措施进行了动态调整和优化。

Dynamic optimal analysis of concrete temperature control and crack prevention standards and measures during dam construction for Zangmu Hydropower Station

In regard to temperature control and crack prevention for concrete dams in plateau areas with high elevation and large temperature differences, a summary was made of research on concrete crack prevention during the construction of the first large concrete gravity dam, with a height of more than 100 meters, in the Tibet Autonomous Region. Based on on-site monitoring data during the dam construction for the Zangmu Hydropower Station, dynamic feedback simulation analysis technology was used to demonstrate the real working condition throughout the construction period. Then, risks that may occur during the later construction period were predicted according to the simulation results, and the related standards and measures for temperature control and crack prevention were adjusted and optimized.