Research On Navigation Safety Evaluation Of VLCC Entering And Leaving Jinzhou Port

In August 2016,the 301B berth of Jinzhou port was passed through the completion and acceptance.With the existing main channel,301 channel,301B berth conditions and DGPS condition,250000 DWT oil tankers can be berthed under the condition of restricted draught.However,due to the limit of channel conditions,berth conditions and the poor handling performance of VLCC,the danger of the ship is increased.This will not only seriously threaten the safety of the life of the crew,but also the leakage of crude oil will cause serious marine pollution and destroy the marine ecosystem.Therefore,the navigation safety evaluation of super large oil tankers on berthing berths is urgently needed to be solved.This paper first analyzes the status of the 301B crude oil berth and channel in Jinzhou port,summarizes the characteristics of VLCC,and calculates the requirements for the departure and departure according to the general design specification for seaport,and then makes a comprehensive analysis and summary of the factors affecting the navigation safety of VLCC in and out of Jinzhou port from four aspects:environment,channels,berths and management.And through the Expert Investigation Method,according to the expert opinion,the safety evaluation index system is established and the quantitative standard of each index is determined.Then,based on the analytic hierarchy process and the set pair analysis theory,the safety evaluation model of the Jinzhou port is established.Finally,the safety evaluation grade is obtained by the model.The analysis of calculation results put forward corresponding risk control measures to better protect the safety of VLCC entering and leaving the port.