结构组合对透水人行道透水性能的影响

Effect of Structural Combination on Water Permeability of Permeable Sidewalks

为探究不同结构层对透水人行道整体透水性能的影响,选用细面陶瓷透水砖、粗面陶瓷透水砖及透水混凝土为面层,透水性水泥稳定碎石、透水混凝土为基层,采用定水头法对不同组合下的整体结构进行渗透系数测试,并对影响机制进行了分析。试验结果表明,透水能力较弱的结构层在一定程度上控制着整个组合层渗透能力的大小,最小透水系数层的透水系数越大且厚度越小,整体透水系数越大。

In order to explore the influence of different structural layers on the water permeability of permeable walkways,this paper selects fine-faced ceramic permeable bricks,rough-faced ceramic permeable bricks and permeable concrete as the surface layer,and water-permeable cement stabilized gravel and permeable concrete as the base layer.The water head method is utilized to test the permeability of the whole structure under different combinations and analyzes the impact mechanism.The test results show that the structural layer with weak water permeability can control the permeability of the whole combined layer to a certain extent.The larger the permeability coefficient of the minimum permeability coefficient layer and the smaller the thickness,the larger the overall permeability coefficient.