IMPROVEMENT METHOD OF DRAINAGE FOR A PERMEABLE CEMENT CONCRETE PAVEMENT,FOR IMPROVING DURABILITY OF A PAVEMENT AND PREVENTING ACCIDENT

摘要

PURPOSE: An improvement method of drainage for a permeable cement concrete pavement is provided to prevent the discharge of minute grains of soils when draining off rainwater, surface water and underground water, and to improve the durability by preventing the freezing, crack, subsidence and separation of a roadway and a footway. CONSTITUTION: The improvement method of drainage for a permeable cement concrete pavement comprises the steps of pit-excavating on a road(5), covering up the outside of drainpipes(4) with woven fabrics(6), then burying under the pit-excavated part and re-filling with the same sand with a sand layer(3).