River channel embankment ecological improvement system and construction method

The invention relates to a riverway embankment ecological improvement system and a construction method. The construction method comprises the following steps of supporting system construction, ground beam and platform construction, active service retaining wall upgrading and reinforcing, riprap silt squeezing construction, bottom plate construction and slope protection construction. The method has the beneficial effects that a cast-in-place pile-prefabricated slab combined supporting system is adopted, the plate hanging problem is solved through cooperation of the fixing holes and the penetrating rods, and slope-free supporting is achieved; an active-service retaining wall profile steel anchor rod reinforcing system is adopted, anchor rods are arranged in an active-service retaining wall and anchored through anchor plates, profile steel is arranged outside the active-service retaining wall, the problem that the supporting and retaining capacity of the active-service retaining wall is insufficient is solved, a