火灾时海底隧道衬砌温度场的数值模拟

Digital simulation of temperature scene of ling structure in submarine tunnel

对隧道衬砌在不同火灾荷载曲线作用下的温度反应进行了模拟,根据不同计算模型,不同计算工况,分别讨论了模型尺寸、衬砌厚度、外水压对温度随衬砌深度变化的影响,数值结果表明:温度随衬砌深度变化的影响较小.

The temperature response of tunnel lining was simulated with different fire load curves. Accord- ing to different calculating models and working condition, the influence of model size, lining thickness and outer water pressure on the temperature change of lining depth is discussed. The results show that the effect of model size, lining thickness and outer water pressure on the temperature of lining depth can be ignored.