Jacking system uses gear-rack engagement principle to realize the lifting operation. Being installed on the fixing frame of the ship, the system can be driven by electric motor and hydraulic motor, and each jacking unit is made up by climbing gears, reducer, electric motor/hydraulic motor, solenoid brake (self-protection), central control system. Locking system is made up by spiral device, lockinggear, chunk, hydro-cylinder, distributor, pump station and control cabine to pile edge.