The Wan Donghe River has resumed overcurrent, and it is expected that the dammed lake and the lake library will not increase significantly 丨 Luding 6.8 earthquake

Cover reporter Chai Fengmu

At 12:52 on September 5, a magnitude 6.8 earthquake occurred in Luding in Sichuan, causing major disasters. Affected by the magnitude 6.8 earthquake, a mountain collapse in Wandong Village, Luding County.

On the afternoon of September 6, the reporter learned the latest situation of the dammed lake from the earthquake relief team of the Sichuan Provincial Water Resources Department. It is reported that the Wandong River is also known as the two forchas and Shui Gaiti, which belongs to the tributary of the right bank of the Dadu River. It originated from the southern foot of Gongga Mountain. The river is 28 kilometers long and the basin area is 168 square kilometers.

Through on -site inspections, satellite remote sensing, drone navigation and other comprehensive analysis, the Dadu River's right bank 1 -level tributary Bay East River Basin appeared on the right bank of the Dadu River. The length and width are about 330 meters and a height of about 60 meters to 70 meters. The estimated volume of the landslide is about 800,000 cubic meters, threatening the safety of the lives and property of the upstream and downstream people. The largest dammed body forms a dammed lake.

According to analysis, the flow of the East River estuary of the Qianwan of the Earthquake was 10.4 cubic meters per second. According to the estimated time of the river interruption, it is expected that the amount of water in the dammed lake is about 600,000 cubic meters.

The Sichuan Provincial Department of Water Conservancy on the site stated that on the early morning of September 6, it was found that the Wan Donghe River channel had resumed overcurrent, and it was expected that the damage and lake library capacity would not increase significantly.

In addition, at the end of the Wan Donghe, the Dadu River Dagang Shanxi Hydropower Station (its total library capacity of 777 million cubic meters and the adjustment library capacity was 117 million cubic meters) warehouse area. At present The amount of water in the Donghe dammed lake in Nawan, the dammed lake has little impact on the Dadu River's dry flow and the Dagang Shanxi Hydropower Station. "The risk of the Lake Lake of the Wan Donghe Chat is generally controllable," said the staff of the working group in front.

In view of the general controllable risks of the Lake Lake of the Wandong River, considering the secondary disaster caused by subsequent aftershocks and heavy rainfall, the working group in front of the Water Resources Department recommends that Anneng Company and the Armed Police Force have arrived at the scene. Essence

"In the future, we will pay close attention to the changes in rain and water love and dammed body, timely study and judge and analyze, and take measures to ensure that the risk of damping the dam luster of the dammed lake is completely eliminated." Said the relevant person in charge of the Earthquake Relief Working Group of the Sichuan Water Resources Department.

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