The concept of sponge city emphasizes the infiltration of rainwater,while the traditional road structure design tries to prevent the infiltration of rainwater from causing adverse effects on the pavement structure layer and subgrade.The influence of sponge facilities used in municipal roads on road subgrade is analyzed to provide reference for the road construction of the sponge city.At present,the influence of common sponge city measures on road subgrade is basically controllable.In actual projects,it can be selected according to local conditions combined with road section scheme,subgrade soil permeability and groundwater level and other factors.
关键词
海绵城市/雨水渗蓄/生物滞留带/生态树池/防渗漏/透水路面
Key words
sponge city/infiltration of rainwater/bioretention zone/ecological tree pool/anti-seepage/porous pavement