The drill was carried out closely in conjunction with the environmental risks of the subsea tunnel
construction project. At 9:30, the drill was officially begun. The drill was simulated that the main
engine of a mud barge in the construction waters of the submarine tunnel suddenly lost its power,
deviated and collided with a nearby breakwater, the bulkhead was damaged, and about 5 tons
of fuel leaked into the sea. At 9:45, after the initial verification and evaluation of the accident,
the Dalian Maritime Pollution Emergency Headquarters launched an emergency plan, dispatched
maritime law enforcement ships and multi-rotor drones to the scene of the accident to conduct
sea and air patrols on the oil spill dynamics on the sea and provide oil spill dynamics to command
headquarters.
At 9:52, according to the accident site report, the Dalian Maritime Pollution Emergency Headquarters
urgently dispatched the nearby waters' social cleanup ships and maritime emergency volunteer
teams to carry emergency equipment(such as oil booms and oil absorbent pads) to the accident
waters for pollution removal operations. At 10:40, a crew member of the accident ship accidentally
fell into the sea during a deck inspection. The Dalian Maritime Pollution Emergency Headquarters
coordinated with the Dalian Maritime Search and Rescue Center to organize on-site emergency
personnel to successfully rescue the drowning personnel. At 11:10, sea and air patrols jointly
confirmed that sea pollution had been removed, and the drill was ended successfully.