宝应泵站流道混凝土施工期温度场的反分析

Back Analysis of Temperature Field in the Flow Channel of Baoying Pump Station during Concrete Construction Period

在三维非稳定温度场有限元仿真计算程序的基础之上,根据宝应泵站施工现场的实测资料,运用遗传算法对泵站泵送混凝土的热学参数进行反演分析,得到表征材料热学特性参数;然后根据反演结果以及实际施工情况对全计算域进行反馈分析。结果表明,计算值和实测值比较接近,误差很小,很好地反映了施工期混凝土实际的温度变化过程,可指导实际施工。

Based on the 3-D finite element method of concrete temperature simulation and the date measured in the field of Baoying pump station, used genetic algorithms in back analysis of the concrete thermal parameters for pump station, good result is achieved; then the feedback analysis in the whole field is done on the previous result and the constructing process. The result shows that the error between the computed result and the measured value is little and the process of temperature changes is well reflected.