Three nine severe cold. At the construction site of the waist barrier of the Honghu East Block Flood Storage Project, the excavator waved its long arm, the construction personnel were busy working, and the roar of the machine was endless.
"The thickness of this paving is too thick, and the degree of compaction is definitely difficult to guarantee, and it must be reworked immediately." Song Yuanlong, technical person in charge of the embankment construction office of the Hubei Provincial Flood Engineering Bureau, is directing the construction work on the spot, seizing the good weather, steadily advancing the earthfilling of the embankment, and sounding the construction "charge trumpet".
Honghu City is located in the lowest reaches of the Four Lakes Basin, which is prone to flood disasters and heavy flood prevention tasks. In November 2016, the honghu east block flood storage project, the largest sub-flood storage project under construction in the country, started construction with a total investment of 4.443 billion yuan, including the construction of a new waist barrier embankment, a socket inlet flood gate, a flood gate for supplementing the yuan, a waist mouth pump station, a gaotankou pumping station two stations, a reinforced Dongjing River embankment, and a main embankment of Honghu Lake.
The project will build a flood storage area closure with a total length of 166.979 kilometers, a flood storage area of 877.49 square kilometers and a volume of 6.1 billion cubic meters in the eastern part of the Honghu Lake flood storage area. When it encountered floods in 1954 and 1998, it was jointly used with the Dongting Lake Flood Storage Area in Hunan To deal with excess floods in the Chenglingji area, and was the last line of defense to ensure the flood control safety of the Jingjiang Embankment, the Jianghan Plain and Wuhan City.
2021 is the year of comprehensive completion and acceptance of the flood storage project in the east of Honghu Lake, the "five major buildings" have been completed one after another, and 142 branch projects and 17 unit projects have passed the acceptance. Among them, the waist mouth pumping station and the Gaotankou second station were officially handed over and put into use, the pipe facilities built by the new embankment management office began construction, and the embankment top highway of the Dongjing River embankment reinforcement project was fully connected...
As soon as you go to the battlefield, you make a great contribution. In the summer of 2020, the city suffered the most serious flood situation since 1998, and the second station of Gaotankou was put into emergency operation, draining 220 million cubic meters in 31 days, equivalent to the water storage capacity of the two East Lakes, becoming the first pumping station project to play a functional role in the function of the "East Block" building.
The waist barrier under construction is the largest single project of the flood storage project in the east block of Honghu Lake, with a total length of 25.6 kilometers, and the entire project will be officially "circled" after completion this year.
Today, personnel, materials, and vehicles are all gathered on this battlefield, and the "sixth major battle, the strategic general offensive", is launched on a 25.6-kilometer front. The reporter saw that at the construction site, the dirt trucks were one after another, driving in and out.
The dirt field is 33 kilometers away from the construction site, and transporting a truckload of soil needs to pass through 4 townships and 10 villages. In order to ensure the safety of transportation, the waist barrier 3 standard project department set up a road inspection special class at each card point and repaired the damaged pavement.
"During the rainy season, we studied new processes to improve the efficiency of engineering soil turning, and built temporary passages for silt soft foundation pavements, and carried out 'membrane bag filling' technical research, which was a great success at the construction site." The person in charge of the 6th lot of the waist barrier construction of Hubei Huaxia Water Conservancy Company said.
Build a project to benefit the people. At present, some of the projects of the "East Block" have played a role in water conservancy flood prevention and disaster resistance, and under the opportunity of flood storage projects, roads, bridges, gates and canals have been built, and the construction of local water conservancy infrastructure has been continuously improved, and the drainage and irrigation capacity has been significantly improved.
The 42.2-kilometer Dongjinghe Embankment Reinforcement Project of Honghu Lake has been fully connected, which has improved the thickness, height and strength of the embankment, improved the flood control standards, and let the people along the embankment bid farewell to the mud road that has accompanied them for more than half a century and stepped onto the "Happiness Road"; the joint operation of the waist mouth pumping station and the Gaotankou Second Station can add 200m/s of drainage capacity for the middle and lower areas of the Four Lakes Basin, greatly alleviating the flood control pressure and reducing the risk of flooding.
"There are many types of flood storage projects in the east of Honghu Lake, large in scale and long in battlefront. We will seize the golden period of water conservancy construction in winter and spring, make full use of horsepower, accelerate the pace of embankment construction, and forge first-class projects, Anlan projects, and people's livelihood projects. The main person in charge of the Provincial Honghu Lake Flood Storage Area Engineering Management Bureau said.