水管冷却对大体积混凝土基础温度场影响分析

Analysis of influence of pipe-cooling on mass concrete foundation temperature field

用MIDAS/GEN软件建立模型,分析了水管冷却6种工况下大体积混凝土内部的温度和应力变化。结果表明:设置冷却水管可以有效控制混凝土内部的温度峰值;冷却水管的水平间距越小,水管距混凝土中部越近,管中注入水流初始温度越低,对温度的控制越有利。

Using the model by MIDAS/GEN,the changes of temperature and stress of mass concrete are analyzed asit uses six different kinds of water pipe cooling conditions.The results show that setting the cooling water pipe caneffectively control the temperature peak inside the concrete;and the smaller the horizontal spacing of the coolingwater pipes,the closer to the middle of the concrete,the lower the initial temperature of the injection water,the morefavorable the temperature control.