The risk is generally controllable!The lake in the Lake Lake of the Wandong River is about 600,000 cubic meters, and the downstream power station can completely eliminate

The water flow of the Wandong River dammed lake in the Wandong River has been excessive.

Chuanguan News reporter Shao Mingliang

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

Through on -site inspections, satellite remote sensing, drone air auction and other comprehensive analysis, the Dadu River's right bank 1 -level tributary Bay Donghe Basin appeared on the right bank of the Dadu River. The lives and property of the people of the upstream and downstream people.

What is the current situation of the Wan Donghe dammed lake? What treatment measures will be taken in the next step? In this regard, on the afternoon of September 6, a reporter from Chuanguan contacted the working group members sent to the scene to the scene.

Is the scale big?

The Wandong River, also known as the two forchas and Shui Gao, 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.

The on -site working group numbered the dammed body formed by the Wandong River from upstream to downstream, with a total of 3 places. Among them, the size of the No. 1 dammed body is the largest, with a length and width of about 330 meters and a height of about 60-70 meters. The estimated amount of the landslide is about 800,000 cubic meters, forming a dammed lake. The other two dammed bodies, the quantity of the landslide body is relatively small, and some of the Disai River have not formed a dammed lake.

According to analysis, the flow of the East River estuary of Qianwan was 10.4 cubic meters per second. According to the estimation of the river interruption time, the lake of the dammed lake was about 600,000 cubic meters. (Remarks: In 2008, the Tangjiashan dammed Lake Lake Rong 145 million cubic meters, 2018 Jinsha River Baige Charter Lake Lake Lake Rong is about 80 million cubic meters)

Is the risk controlled?

"The slope of the Wan Donghe River is relatively steep, and the damage and lake library capacity formed." The relevant person in charge of the Earthquake Rescue Working Group of the Sichuan Provincial Water Resources Department introduced that in the early morning of September 6, the Wan Donghe Channel was found to be resumed. It is expected that the damage and lake library will 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 lake in the Donghe dammed lake in Nawan is stunned. The dammed lake has little impact on the Dadu River dry flow and the Dagangshan Power Station's downstream.

"The risk of the Lake Lake of the Wan Donghe Chat is generally controllable," said the staff of the working group in front.

What do you follow up?

In view of the overall stability of the Lake Lake of the Wandong River, the risk of manual disposal is large, and considering the secondary disaster caused by subsequent aftershocks, the working group in front of the Water Resources Department suggested that the rescue personnel and machinery and equipment that had arrived at the scene were standing on the spot.

Today (September 6), Xu Yinchang, director of the Ganzi Hydrological Center, who has led the emergency reporting report on the spot, said that the main work is now to increase the frequency of hydrological reporting and provide data support for scientific decision -making.

"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.

Picture of Ganzi Hydrological Center

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