The invention discloses a construction method for a
road surface water stabilizing layer and an ancillary project. The construction method comprises the steps that a road trough is checked and accepted, specifically, the road trough of a to-be-constructed road section is subjected to checking and accepting; drainage construction is performed, specifically, a transverse water drainage
pipe is buried, and a longitudinal gutterway is arranged;
cushion construction is performed, specifically, a
cushion is paved to form a
bed course; road shoulders and central separating area construction is performed, specifically, slip form construction is performed on both side edges and the center of a
road surface to form a shoulder strip foundation and a central separating area canalization
retaining wall; the construction of earth up,
greening and separation of the water stability layer is performed, specifically, the road shoulders are subjected to earth up and
greening and the water stability layeris subjected to paving according to the separation of the shoulder strip foundation; anti-collision guardrail construction is performed, specifically, a New Jersey barrier is installed on a upper base layer; and
surface layer construction is performed, specifically, the
road surface is subjected to paving of an
asphalt surface layer. According to the construction method for the road surface waterstabilizing layer and the ancillary project, a working surface of the water stability layer is not polluted, the construction image is good, the construction is compact, traffic control can be performed reliably, and the construction efficiency is high.