大坝混凝土施工期温度预测与控制灰匣模型

Gray-box motlel of temperature prediction and control for concrete of dam under construction

针对大坝混凝土施工条件多变，随机因素、干扰多等特点，提出将热学机理模型和参数经验识别相结合的灰色预测法，对大坝混凝土的温控防裂措施进行动态管理。阐述灰匣模型的构成、原理和算法，介绍模型的计算机应用软件，并给出了某拱坝浇注块的计算实例。

ased on the feature that the construction conditions for dam concrete are variable with disturbance of many random factors, a gray-box predictive method combined with mechanism model of heat exchange and experimental identification of parameters is presented.It can be used for dynamic management of temperature control and crack precaution of concrete dam. Its composition, principle,algorithm and a computer software with a practicality are introduced as well.