Grid-type steel sheet pile large cylinder main grid installation construction special-purpose crane ship

The present invention discloses a grid-type steel sheet pile large cylinder main grid installation construction special-purpose crane ship, which includes a special-purpose crane ship mother ship, the special-purpose crane ship mother ship is provided with a special lifting device and a special sling tool, the special lifting device is fixed in the crane ship mother ship, and is used for lifting operation, a T-shaped double arm structure is used, and the special lifting device comprises two sets of left-right symmetrical lifting devices, and the special sling tool is arranged on the special lifting device, and is used for grid-type steel sheet pile main grid tooling integral lifting and integral lifting of a grid-type steel sheet pile 1/4 cylinder pre-splicing part. The grid-type steel sheet pile large cylinder main grid installation construction special-purpose crane ship can effectively solve the integral lifting and immersion of a grid-type steel sheet pile with the length reaching 37.1m and general total weight of 450t-560t under conditions of high water aviation height limit and small water depth.