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对一些市政公路排水现状和排水设施布设情况的分析表明,公路路面在使用一段时间后,不可避免地要出现各种病害,其中水是危害公路的主要自然因素。大多数路基沉陷、冲刷、坍塌、翻浆,沥青路面松散、剥落、龟裂,水泥混凝土路面唧泥、错台、断裂等病害,都不同程度地与地表水和地下水的侵蚀有关。水的作用加剧了路基和路面结构的损坏,加快了路面使用性能的恶化,缩短了它们的使用寿命。因此,道路排水是否通畅是影响路面使用性能和使用寿命的一个重要因素。设置路面结构内部排水系统,能够将积滞在路面结构内的水分迅速地排出路基、路面结构外,有利于改善道路的使用性能,提高路面的使用寿命。
Analysis of drainage status and draining facilities on some municipal roads shows that inevitably, a variety of diseases occur on road pavement after being used for a period of time. Water is the main natural factor that endangers roads. Most embankment subsidence, erosion, collapse, dewatering, asphalt pavement loose, spalling, cracking, concrete pavement pump mud, wrong Taiwan, rupture and other diseases, to varying degrees, with the surface water and groundwater erosion. The role of water exacerbates the damage of roadbed and pavement structure, exacerbates the deteriorating performance of pavement and shortens their service life. Therefore, the smoothness of road drainage is an important factor affecting the serviceability and service life of pavement. Setting the internal drainage system of the pavement structure can rapidly remove the moisture accumulated in the pavement structure outside the roadbed and pavement structure, which is beneficial to improving the service performance of the road and improving the service life of the pavement.