(1) Load operation at the berth of the dock to increase the pressure of the rubber fender of the dock.

In recent years, with the rapid development of the international marine container shipping industry, a large number of newly built fifth, sixth, and seventh generation container ships have been put into use, with a load capacity of 60,000 to 100,000 tons, which has caused the port berth to be overweight and fully operated; and In order to ensure that the liner shift schedule does not affect the work, the ship's workload far exceeds the design and operation capacity of the berth at that time. As a result, the supporting fenders are often in load application, resulting in the destruction of the wharf rubber fenders and fender chains. In this regard, the upgrading and innovation of berths and supporting fenders should be accelerated. Many port instances show that the damage frequency of fenders is significantly reduced after upgrading.

　　 (2) Irregular operation.

　　 For economic gain, some shipping companies often accept the method of berthing by themselves. They do not rely on pilotage and tugboats in the port. The impact force of ships is fully buffered by fenders, which sometimes leads to the destruction of the rubber fenders of the wharf. For this reason, the terminal company should reach a consensus with the shipping company to urge the shipping company to accept the forced pilotage method when berthing ships and use tugboats to assist in berthing.

　　 (3) Severe ocean weather, such as strong typhoons, storm surges, etc., immersed in low tide seawater will also destroy the rubber fenders of the pier. Therefore, in extreme weather, the terminal company should minimize or suspend operations to avoid an increase in the risk of damage to the terminal rubber fender.

　　 (4) Establish a sound and timely safety inspection system for the wharf rubber fenders, such as a monthly inspection rail system, to prevent the wharf rubber fenders from being damaged. The damaged fenders can also be dealt with in the early stage to avoid further expansion.