In Taokou Village, Longkou Town, Honghu City, the socket flood gate known as the "first gate of the Yangtze River dry embankment" is like a long dragon lying quietly.
As an important control project in the flood storage and detention area of the Honghu East Block, the mouth gate is 605 meters wide, 44 gate holes, and the design flow rate is 8,000 cubic meters per second, which is larger than the design flow of the north gate in the Jingjiang River flood diversion area, and it is the largest and fastest flood inlet gate on the dry embankment of the Yangtze River. After completion, the set of flood gates will block the flood of the Yangtze River when there is no sub-flood storage, and open the flood gates as a flood estuary channel when the flood is divided.
On March 11, the reporter saw on the top of the embankment highway on the left bank of the flood gate that a small sprinkler truck was watering and moisturizing the geotextile covering the concrete pavement back and forth, "the concrete pavement is being maintained to make it strong enough to ensure the safety of the embankment." Tong Yan, deputy manager of the Hubei Water General Outlet Flood Gate Project Department, introduced to reporters that concrete needs a constant temperature and humidity environment.
"The whole project is now in the final stage." Tong Yan introduced that the main project of the socket flood gate completed the water barrier test in January 2021, and the water barrier between the two banks of the connecting embankment and the gate is in good condition, and the concrete pouring and maintenance of the embankment top road on the left and right banks of the flood gate are mainly carried out, and the project acceptance is expected to be completed on March 30, "The flood season will resist the flood in a strong posture." ”
According to the relevant person in charge of the Provincial Honghu Lake Flood Storage Area Engineering Management Bureau, the main function of the Honghu East Block Flood Storage area is equivalent to the excess flood of the Yangtze River in the water bag of the flood storage area, and the main role of the socket flood gate is similar to the faucet, to ensure that when the flood comes, it can flexibly enter and close, alleviating the problem of insufficient flow capacity of the Yangtze River and the river.