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讨沦路面结构的内部排水设施。介绍边缘排水和透水层排水两种内部排水布置方案以及对组成材料的要求，论述确定各设施所需尺寸和透水材料渗透性要求的水力计算方法，并提出表面水设计渗入率的建议值和渗入量的估算方法。
Discuss internal drainage of pavement structure. This paper introduces two internal drainage schemes of edge drainage and permeable layer drainage as well as the requirements for the composition of materials. It also discusses the hydraulic calculation method to determine the required size of each facility and permeability of permeable material, and proposes the recommended value of seepage rate of surface water design and infiltration How to estimate the amount