Waterside road broadened embankment structure and construction method thereof

The invention relates to a waterside road broadened embankment structure, which is characterized in that the waterside side of a new embankment is provided with a waterproof maintenance pile, and the outer side of the maintenance pile is provided with a dumping stone weights body; the lower part of the new embankment is a solidified soil layer, the upper part of the new embankment is a lightweight filler layer, and the contact part of the solidified soil layer and the lightweight filler layer is provided with a horizontal reinforced body and a vertical reinforced body; a grouting strengthened body is arranged in an original embankment, and the front end of the grouting strengthened body is a reinforced connecting section; and the side slopes on the top surface and outer side of the new embankment and the two sides of the maintenance pile are respectively provided with a waterproof later, and the bottom of the dumping stone weights body is provided with an impervious blanket. According to the invention, the co