【摘要】 在山区高速公路建设中，隧道水泥混凝土铺装层易发生结露现象，严重影响隧道路面层间黏结状态。采用现场调研和理论分析的手段对在建高速公路四个隧道水泥混凝土铺装层结露现象进行了研究，基于气象观测指南法计算方程探讨了隧道水泥混凝土铺装层结露机理，揭示各参数与结露现象的潜在关系，并提出了解决铺装层结露问题的有效措施。结果表明，相对湿度、露点温度、隧道线型等因素与结露现象关系紧密。隧道洞内外相对湿度差异超过20%,圆曲线比例较高且位于隧道两端的水泥混凝土铺装层结露问题突出；风速和气压对水泥混凝土铺装层结露影响并不显著；后续可通过升温除湿、化学除湿、通风除湿等措施对在建隧道铺装层表面结露问题予以处理。更多还原

【Abstract】 In the construction of mountain expressways, condensation on the cement concrete base layer of tunnels is a common issue that can significantly compromise the bonding conditions between pavement layers. Field investigations and theoretical analyses were carried out in four tunnels of an expressway under construction. The condensation mechanism was examined using calculation methods prescribed by meteorological observation guidelines, and the influence of various factors on condensation was evaluated. Effective mitigation measures were then identified. The results show that relative humidity, dew point temperature, and tunnel alignment exert primary control over condensation. Specifically, when the internal-external humidity differential exceeds 20% and a high proportion of circular curves is present at tunnel portals, severe condensation occurs. In contrast, wind speed and air pressure were found to have negligible effects. To alleviate condensation, measures such as heating, chemical dehumidification, and enhanced ventilation are recommended.更多还原