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路面水结构损坏的实际情况表明,进入路面结构内的水是造成或加速路面损坏的主要原因,设置路面结构内部排水系统有利于防止病害产生,延长路面使用寿命。文章从需要及经济两方面提出了路面内部排水系统的设置条件和设计要求,阐述了目前国内外应用的路面内部排水系统的各种形式,详细论述了开级配粒料、结合料稳定粒料及多孔混凝土排水基层,边缘集水沟管和隔离层等内部排水系统的材料组成,就路面内部排水系统的施工及注意事项予以概要介绍。
The actual situation of pavement water structure damage shows that the water entering the pavement structure is the main reason causing or accelerating the pavement damage. Setting the drainage system inside the pavement structure is good for preventing disease and prolonging the service life of the pavement. The paper puts forward the requirements and design requirements of the internal drainage system of pavement both from needs and economic aspects. It also expounds various forms of the internal drainage system used in pavement at home and abroad, and discusses the advantages and disadvantages of open graded aggregate, Porous concrete drainage of the grass-roots level, the edge of the catchment pipe and the separation layer and other internal drainage system of the material composition of the internal drainage of the pavement construction and precautions to be outlined.