Several Ways For Large Port Machinery To Go Ashore

The installation of large-scale port machinery is a key node in the construction of the wharf, and its installation at the wharf is generally divided into on-site assembly (parts or large parts are transported to the site), hoisting of the whole machine, roll-on and roll-off of the whole machine. The choice of installation type requires comprehensive consideration of many factors such as the assembly site, local weather, dock adaptability, installation quality control, transportation cost, installation cost, installation cycle, and site coordination.
Dock bulk is a traditional method that is rarely used at present, but it is still approved for use under the constraints of special geographic location, transportation conditions, and on-site construction conditions. The following illustration shows the on-site bulk installation of large components and the on-site assembly of smaller parts. Except for very special circumstances, it is basically not recommended.
The bulk installation cycle of the terminal is costly and long, and the quality of on-site installation is more difficult to control than other methods, but its transportation cost is relatively small, and the requirements for the terminal are low. It is also an option in a specific environment.
The whole machine hoisting and roll-on-rolling methods have higher installation quality, lower on-site installation cost, and short installation period, which are currently popular terminal installation methods. Before the equipment arrives on the site, the assembly of the whole machine is basically completed at the manufacturing base. Then roll-on or hoisted onto the ship, lashed firmly and transported to the site.
After the ship arrives at the dock site, preparations for hoisting or roll-on of the whole machine are started. The influence of obstacles on the wharf, the choice of weather during the landing period, the influence of wind and waves, water level, navigation channels, etc.; floating crane dispatch, temporary rails, wharf cranes, forklifts, hoists, etc. are in place.
The hoisting method of the whole machine is basically not restricted by the on-site construction of wharf bridges, belt conveyors, etc., has no impact on the entire construction period, and has lower adaptability to the wharf than the ro-ro solution. However, the dispatching, lifting capacity, and lifting range of floating cranes need to be carefully considered, especially for foreign terminals.
The roll-on roll-off of the whole machine is the most common. Although it is affected by the on-site construction of the wharf trestle and belt conveyor, its comprehensive transportation cost and installation cost are easier to control. After the installation cycle is carefully arranged, it can also be closely integrated with the wharf construction. No real impact.
Ro-ro on the front of the wharf is the first choice for large-scale machine rolling ashore. This method is stable in berthing and has good adaptability to the wharf. In addition, in order to reduce the impact of roll-on-rolling on the construction of the wharf, avoiding the already-constructed wharf trestle and belt conveyor, etc., under the premise of good wind and wave conditions on site and stable berthing, some projects also adopt the method of roll-on-rolling at the end of the wharf. This method reduces the number of temporary rails and the additional design of the roll-on area structure during front roll-on roll-on. However, this approach requires higher berthing conditions and is generally less adopted.

Related Items