通过对平原地区高速公路中央分隔带积水的原因及其对路面结构、路基造成损害和对行车的影响程度进行分析,针对无封闭情况的高速公路中央分隔带进行排水设计。在正常路段和超高路段通过科学计算与经验结合,提出了排水设计方案。本文对平原地区高速公路中央分隔带排水设计的研究可为同类工程设计提供参考。 Based on the analysis of the causes of water accumulation in the central divider zone of the Plain Plain and its influence on the pavement structure, roadbed damage and traffic impact, the freeway central divider zone is designed for drainage without closure. In the normal sections and ultra-high sections through the combination of scientific computing and experience, proposed drainage design. In this paper, the study on the drainage design of the central divider zone in plain area can provide references for the similar engineering design.