The invention discloses a
wharf structure suitable for a
silt coast. A direction which is close to the sea is used as a front direction, and a direction which is relatively away from the sea is used as a rear direction. The
wharf structure comprises a causeway, a front diaphragm wall, a rear diaphragm wall, a partition, a plurality of
coupling beams and a
wharf upper part structure, wherein the front diaphragm wall, the rear diaphragm wall and the partition form a cylindrical
caisson structure; the
coupling beams are connected with the rear diaphragm wall and a
pile foundation; and the wharf upper part structure covers the front diaphragm wall, the rear diaphragm wall, the partition and the
pile foundation. By the structure, construction difficulty and
engineering investment costs are reduced effectively. A construction method comprises the following steps: (1) constructing the causeway by bagged sand quilts; (2) reinforcing the causeway and
silt filled at the rear of the causeway in a blowing manner, reinforcing new
silt filled in the blowing manner, and constructing the front diaphragm wall, the rear diaphragm wall and the partition to form the cylindrical
caisson structure when the
bearing capacity of foundation soil reaches 5 tons at least; (3) excavating causeway remaining earthwork in front of the front diaphragm wall and earthwork under a natural silt surface, and enabling the
front edge of a wharf to reach designed
water depth; and (4) constructing the
pile foundation and the
coupling beams, and then constructing the wharf upper part structure. The construction method is simple.