Mooring at sea is a condition of a ship that includes the mooring lines of a wharf, buoy or other rope of mooring and depends on the mooring lines to hold the ship in place. Both ends of the cable shall be fastened to the mooring bollard on its shore and on board the ship.
1.What is a mooring bollard
A bollard is a bollard fixed to a deck or wharf for mooring. It is usually made by casting or welding metal. Because of the high pressure while using, the base is very stable. To prevent the cable from slipping, bollards are usually covered with bollards slightly larger than the bollard. The moorings are usually installed in the end of ship.The moorings usually have a specific shape. Once firmly in place in the water, it will quickly engages the bottom to create a grip. A special piece of equipment for a ship or other flotation system to be left according to a designated area by a cable or cable. The first anchor is installed on both the left and right side of outboard of the ship. The other anchor of the same size is placed on deck for spare use.
There are many types of ship bollards, including curved dock bollard, cruciform bollard, double cruciform bollard, double bitt mooring bollard, kidney-shaped bollard and staghorn bollard. Staghore bollard also known as twin horn dock bollard and T head bollard.
2.Arrangement requirements for mooring bollards
Piles to support the towline shall be placed forward and aft, should be the same direction as the towline. A certain distance should be kept between the block and the mooring guide, not less than 6 times the diameter of the mooring column for large ships and not less than 10 times the diameter of the mooring column for small boats. Generally, it should be within 1.5 times. The distance between the outer edge of the mooring column and the gun barrel should not be less than 1.5 times of the diameter of the mooring column.3.Maintenance requirements for mooring bollards
The carrying capacity of the mooring bollards is very large. Its working environment is above sea level and highly corrosive, which will greatly affect the service life of the mooring bollards. In order to increase service life and reduce related damage, various maintenance work should be done after the daily use.3-1.Clean job
Bollards is generally used on ships at sea, some shells and microorganisms will be parasitic so it is necessary to clean the mooring bollards. We need to pay attention to cleaning these microorganisms regularly.
3-2.Reinforcement work
In daily use, the mooring bollards are pulled by the cable and resulting in the possibility of loosening over a long period of time under tension. We need to pay attention to the reinforcement requirements and check the tightness regularly to ensure stability.4.What should I pay attention to in daily use of mooring bollards
Due to its important role, attention should be paid to the following problems to ensure the stable and reliable performance of the mooring bollards.