Steel slag water-permeable pavement structure and construction method thereof

The invention discloses a steel slag water-permeable pavement structure and a construction method thereof. The steel slag water-permeable pavement structure is arranged on a roadbed and sequentially comprises a surface layer, a base layer, a cushion layer and a siphon connection layer from top to bottom, wherein the surface layer is composed of steel slag with the particle size being 0.1-2 mm by means of mixed curing of adhesives; the basic layer is composed of aggregate with the particle size being 2-15 mm by means of mixed curing of adhesives; the cushion layer is composed of aggregate with the particle size being 2-30 mm by means of mixed curing of adhesives; the siphon connection layer is formed by mixing steel slag with the particle size being 2-15 mm and plain soil in a tamping mode. By means of the performance that water permeability is achieved after steel slag and adhesives are cured, rainwater on a pavement enters underground water through the permeating effect, it is avoided that rainwater forms ru