路面纵向裂缝是目前公路,尤其是北方寒冷地区公路出现的较为普遍的问题。本文通过系统地观测和深入地调查,总结了形成路面裂缝的路基土冻裂反射、路基失稳和边坡滑塌这三个原因并由此提出了纵向裂缝的防治措施,即控制路基填料的含水量、对地下水和湿软地基进行严格的处理。 Longitudinal cracks in the pavement are the more common problems that have emerged in the current highways, especially in the cold regions of northern China. In this paper, through systematic observation and in-depth investigation, summarized the three causes of the formation of pavement cracks, such as the frost crack reflection, the instability of the subgrade and the slope collapse, and put forward the prevention and control measures of the longitudinal cracks, that is, Water content, strict treatment of groundwater and soft ground.