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通过对寒区隧道洞内温度的长期连续实测和数值模拟验证,揭示了寒区隧道洞内经历多频次短周期冻融循环的特征,以及洞口段和洞身段在冻融循环次数上的差异,据此提出采用短周期正负温交替次数作为寒区隧道冻害设防的观点和实施方法。
Through the long-term continuous measurement and numerical simulation verification of the tunnel tunnel temperature in the cold area, the characteristics of multi-frequency short-period freeze-thaw cycles in the cold tunnel tunnel are revealed, and the difference of the freeze- Based on this, the viewpoint and implementation method of applying short-period alternating number of positive and negative temperature as cold damage fortification for cold tunnels are proposed.