• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Dam Safety Management（2008水库大坝安全管理国际研讨会） >Simulation Analysis of Temperature Field of Longtan Hydropower Station RCC Gravity Dam
【24h】

Simulation Analysis of Temperature Field of Longtan Hydropower Station RCC Gravity Dam

机译：龙滩水电站碾压混凝土重力坝温度场仿真分析。

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this paper, the chemical reaction rate is used to describe the combined effects of placement temperature and time on the adiabatic temperature rise. A concrete analytic test model is built and computed at different placement temperatures and different boundary con-ditions by FEM, and the rises of temperature of centre point in the model are studied. Then the non-linear heat conduction equation based on the equivalent time theory is applied to sim-ulate and analyze the temperature fields of LongTan RCC Gravity Darn. The conclusions are summarized as followings: (1) The maximum temperatures and adiabatic rise curves of con-crete are remarkably influenced by the placement temperatures; (2) The new theory and the non-linear heat conduction equation are more eongruent with engineering practice when ap-plied to calculate temperature fields, with an average increase of 6.7% of temperature results compared with the traditional theory; (3) The maximum temperature fields within the dam are correlated with the air temperature, and some necessary thermal control measures are re-quired, when the RCC dam is constructed in summer.
机译：在本文中，化学反应速率用来描述放置温度和时间对绝热温升的综合影响。建立了具体的分析测试模型，并通过有限元法在不同的放置温度和不同的边界条件下进行了计算，并对模型中中心点的温度升高进行了研究。然后基于等效时间理论的非线性热传导方程被用于模拟和分析龙潭碾压混凝土重力达恩的温度场。结论如下：（1）最高温度和混凝土的绝热上升曲线受浇筑温度的显着影响； （2）应用于计算温度场时，新理论和非线性热传导方程与工程实践更为吻合，平均温度结果比传统理论高6.7％； （3）夏季碾压混凝土坝建成时，坝内的最高温度场与气温相关，并需要采取一些必要的热控制措施。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号