长江科学院院报 ›› 2015, Vol. 32 ›› Issue (2): 119-122.DOI: 10.3969/j.issn.1001-5485.2015.02.024

• 水工结构与材料 • 上一篇    下一篇

向家坝导流底孔回填混凝土温度动态预测

周建兵1,黄耀英2,何小鹏1,田开平2   

  1. 1. 中国长江三峡集团 向家坝工程建设部,四川 宜宾 644600;
    2. 三峡大学 水利与环境学院,湖北 宜昌 423002
  • 收稿日期:2013-09-24 出版日期:2015-02-01 发布日期:2015-02-06
  • 作者简介:周建兵(1985- ),男,湖北武汉人,工程师,硕士,主要从事水利工程项目管理工作,(电话)18608319350(电子信箱)zhoujianbing309@163.com。
  • 基金资助:

    国家自然科学基金项目(51209124)

Dynamic Prediction of Concrete Temperature for the Plugging of Bottom Diversion Outlet of Xiangjiaba Hydropower Project

ZHOU Jian-bing1,HUANG Yao-ying2,HE Xiao-peng1,TIAN Kai-ping2   

  1. 1.Xiangjiaba Project Construction Department, Three Gorges Corporation, Yibin 644600, China;
    2.College of Hydraulic and Environmental Engineering, Three Gorges University, Yichang 443002, China
  • Received:2013-09-24 Online:2015-02-01 Published:2015-02-06

摘要:

导流底孔回填混凝土水泥含量高,温控难度大,一般需要埋设冷却水管进行通水冷却。针对导流底孔回填混凝土的特点,从动态预测角度出发,将有热源水管冷却计算式结合混凝土浇筑仓实测温度,根据浇筑仓当前实测温度动态更新有热源水管冷却计算式中的Ti,然后进行未来n天混凝土浇筑仓温度动态预测,以指导和调控现场通水措施。向家坝导流底孔回填混凝土温度动态预测的实例分析表明,建议的温度动态预测式是可行的。

关键词: 导流底孔, 回填混凝土, 初期冷却, 动态预测, 向家坝水电站

Abstract:

The concrete plugging of bottom diversion outlet has high proportion of cement, posing big challenge to the temperature control, therefore pipe cooling is needed. In this research, we recommend to combine the heat pipe cooling calculation formula with the measured temperature of concrete block, which means to dynamically update Ti in the heat pipe cooling calculation formula according to the measured temperature, and then predict the dynamic temperature of concrete block of n days in the future to guide and control the pipe cooling. The dynamic prediction for concrete temperature is proved to be feasible by the practical example of concrete temperature of plugging of bottom diversion outlet at Xiangjiaba Hydropower Project.

Key words: bottom diversion outlet, plugging concrete, initial pipe cooling, dynamic prediction, Xiangjiaba hydropower station

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