The invention relates to the technical field of
underwater caisson construction, in particular to a
caisson construction method. The
underwater leveling
machine is assembled and formed on the supporting platform, and the semi-submersible
barge and the sea side of the supporting platform are berthed; the
underwater leveling
machine walks to the semi-submersible
barge, and the underwater leveling
machine is transported through the semi-submersible
barge; the underwater leveling machine is separated from the semi-submersible barge and reaches the mounting area, and leveling operation is carried out; the semi-submersible barge is berthed with the side, close to the sea, of the supporting platform again, and the
caisson is moved to the semi-submersible barge from the supporting platform; and the caisson is transported to the installation area based on the semi-submersible barge, and the caisson is installed. According to the caisson construction method, the supporting platform serves as a launching platform shared by the caisson and the underwater leveling machine, launching transportation of the underwater leveling machine can be carried out through an existing semi-submersible barge used for transporting the caisson in
wharf construction by means of the walking capacity of the underwater leveling machine, and therefore cost does not need to be additionally input for hoisting the underwater leveling machine to be launched; therefore, the construction cost is effectively reduced.