Comparison between the Three Gorges of the Yangtze River in recent years and the past

Eight major changes in navigation of the Three Gorges Project

1, the channel situation has changed fundamentally. In the past, the location of the Three Gorges Project was a famous shoal, with narrow navigation channels, many beaches and many reefs. After the impoundment of the Three Gorges Dam twice, the water flow is smooth, and now the water depth of the approach channel can be kept above 4 meters even in the dry season, which shows the wish of a generation of great men "Gaoxia Pinghu"; The new type of solar-powered navigation AIDS ensures a good sight distance at night, and can be managed remotely, optimizing and ensuring navigation conditions.

2. The navigable water flow of Gezhouba shiplock has been improved. At the beginning of navigation, the No.1 lock was restricted by the current conditions, and the standard of suspension was set at 20,000. Once implemented, it is 18. We took the initiative to promote the river regime transformation project, organized a full-ship test with a large flow level of 25,000 to 35,000, and increased its navigable flow to 35,000, greatly improving its passing capacity.

3. The management system, capital allocation and capital construction funds have been guaranteed and profound changes have taken place. In the past, the system was unclear, the sources of funds were limited, and there were no projects to do for several years. Now we have been included in the establishment of the state administrative organs. Under the state financial allocation, with the favorable opportunity of the development of the Yangtze River shipping and the large-scale development of the western region of the country, infrastructure projects have been included in the planning of the Ministry of Communications. In recent years, the accumulated construction funds have reached 400 million, further strengthening the shipping support means and service capabilities.

4. The management concept has been constantly innovated, and the transformation from traditional management to modern service has been gradually realized. In the past, the service consciousness was not strong, and the relationship with the ship was unequal. Now, carry out the purpose of "three services", reshape the overall management mode and concept, emphasize the open, just and fair order of crossing the gate, and establish a new mechanism for harmonious navigation of the Three Gorges.

5. The continuous improvement of staff's knowledge structure and the continuous strengthening of scientific and technological means have made the modernization of navigation management of the Three Gorges more solid. Through the combination of introducing graduate students and self-cultivation, the academic structure of employees has changed greatly. Among the 748 employees, there are 20 doctors 1 and masters, including master 12. Undergraduate students 188, 203 college graduates; There are 4 professors, 49 senior engineers, with intermediate title 123 and 98 junior titles. In the aspect of ship lock repair, we independently innovated, developed a safe, fast, labor-saving and time-saving "synchronous jacking system", obtained the national patent technology, and successfully applied it to the practice of ship lock overhaul, shortening the overhaul time from the original 100 day to 50 days; In terms of dispatching management, the number of ships connected to the network by GPS has reached thousands, which has promoted the transformation from a 24-hour dispatching plan to a 4-hour real-time plan, and the degree of sunshine navigation has been higher, and the construction of professional ethics has been greatly strengthened. In terms of navigation safety management, the Three Gorges VTS system, CCTV and other systems cover the whole area, becoming the largest supervision center in the country, weaving a safety net in the area, making the ship's walking trajectory clear at a glance, and raising the safety emergency rescue capability and level to a new height; In terms of navigation infrastructure, navigation management is even more powerful, whether it is the construction of digital navigation channel, search and rescue base or the planning and construction of lock maintenance center that is being actively strived for.

6. The process of ship standardization has been accelerated. In the past ten years, the shipping organization and capacity structure of the Yangtze River have been gradually optimized, and the trend of large-scale freight ships is obvious. The average deadweight ton increased from less than 400 tons in 1998 to 1660 tons in 2007.

7. The annual throughput of the Three Gorges reach continues to increase, showing the momentum of rapid development of Yangtze River shipping. 1998, the throughput of the Three Gorges Project is only190,000 tons. In recent years, the annual throughput of the Three Gorges Shiplock alone has continuously exceeded 30,000,4000,50,60 million tons. By the end of 2007, the throughput of the Three Gorges reach reached 90 million tons, with more than 400,000 ship trips and more than 300,000 passengers crossing the dam.

8. Security capabilities have been strengthened and the security situation has gradually stabilized. 10 years, we constantly strengthened the concept and measures of safety management, and formed a set of flood control, low water, fire prevention and security systems, which greatly improved the emergency capacity and level. Special weather conditions are also directly notified to the ship through the network and broadcast, which greatly improves the safety factor and the success rate of rescue reaches 98. 1%.

The development and changes in the past 30 years are gratifying, and now we stand at the crossroads of the next decade. Let's unite, take Scientific Outlook on Development and "three services" as the purpose, and use the driving force of modern management technology and cultural construction to promote the sound and rapid development of navigation in the Three Gorges, achieve new take-off in the construction of the golden waterway, and continue to play the strongest voice worthy of the times in the next ten or twenty years.