水利学报Issue(8)：950-957,8.
大体积混凝土通水冷却智能温度控制方法与系统
Intelligent cooling control method and system for mass concrete
摘要
Abstract
An intelligent cooling method is proposed to control temperature change of mass concrete with re-al-time, online and individuation. It is significant also for engineering and academic study on preventing the concrete dam from cracking during the construction period. The intelligent cooling method has the follow-ing main features:(a) the digital temperature sensors are installed in a new pouring mass concrete for monitoring real-time temperature change;(b) a controlling device is installed in the inlet and outlet of cooling pipe, and an average reduction of concrete temperature is obtained on the basis of calculating the cooling temperature difference;and (c) according to the Fourier law and conservation of energy, the re-al-time water flow is determined for cooling. Three basic cooling control principals should be followed dur-ing the cooling process:the highest temperature control, temperature change rate coordinated control, and abnormal temperature control. The intelligent cooling control is carried out by software platform system based on temperature control curve, which try to reduce tensile stress for winning a non-cracking concrete dam. The proposed cooling control method and system were successfully used to guide the temperature con-trolling of Xiluodu arch dam under construction process. The proposed novel method will be beneficial to the design and construction of the similar projects for controlling thermal stress of mass concrete.关键词
水工结构/大体积混凝土/通水冷却/智能温度控制/溪洛渡拱坝Key words
Hydraulic structure/mass concrete/cooling/intelligent cooling control/Xiluodu arch dam分类
建筑与水利引用本文复制引用
林鹏,李庆斌,周绍武,胡昱..大体积混凝土通水冷却智能温度控制方法与系统[J].水利学报,2013,(8):950-957,8.基金项目
清华大学自主课题资助（20111081122）；国家重点基础研究发展计划（973）项目资助（2011CB013503、2013CB035902）；国家自然科学基金项目资助 （）
