The risk of the Lake Lake of the Wandong River Modern Lake continues to carry out water conservancy, earthquake resistance and disaster mitigation

Ganzi Prefecture's Hydrological Center uses drones to obtain the image of the convergence of the mouth to the Wan Dong Hydropower Station

After a magnitude 6.8 earthquake in Luding County, Ganzi Tibetan Autonomous Prefecture, Sichuan, the Ministry of Water Resources rolled the agent to study and judge the deployment of water conservancy and earthquake -mitigation in the earthquake area. On September 7, Liu Weiping, deputy minister of the Ministry of Water Resources, presided over the chamber of commerce to analyze and judge the risk of rainwater conditions, water conservancy engineering shocks, and Wan Donghe dammed lake risks. Prevent the secondary disaster that may bring in rainy weather recently.

Due to the hindrance of the traffic, the working group of the Ministry of Water Resources and the expert group of the Sichuan Provincial Water Resources Department walked through the two kilometers of the United Village Tunnel to investigate the situation of the Donghe exit section of the Donghe exit of the bay in the dammed lake.

After investigating the damage of the water conservancy project, there is no greater insurance report that affects the safety of the main project. Drinking water due to the affected people of disaster water supply has been solved in various ways. After comprehensive analysis of the working group in front of the Ministry of Water Resources and the Sichuan Provincial Department of Water Resources, the risk of the Lake Lake in the Wandong River is generally controllable. The Ministry of Water Resources responded to the emergency response to the maintenance of water and drought disaster defense in Sichuan Province. The working group sent was still assisted in guiding the local water conservancy engineering risk investigation and the emergency response disposal of dammed lakes.

Expert group will discuss emergency disposal

Affected by the earthquake, on the right bank of the right bank of Wandong Village, Luding Town, Luding County, Luding County, Ganzi Prefecture collapsed on September 5th, blocking the Dagu River 1st tributary Bay Donghe right main branch ditch to form a dammed lake. Mi, in the early morning of the 6th, it was found that the Wan Donghe River channel has returned to a natural overcurrent. The average over -traffic is 12.9 cubic meters per second. It is expected that the damage and lake library will not increase significantly. The end of the Wan Donghe was remitted into the database area of ​​the Dagu River, and the Ministry of Water Conservancy guided the local dispatching of the power station for about 32 million cubic meters of library capacity to fully eliminate the amount of water from the dammed lake in the dammed lake. And the downstream of the Dagangshan Power Station has little impact. More than 100 people threatened along the Wan East River have shifted safely. At present, the construction risk of human work disposal is relatively large, and the rescue personnel are on standby. In the future, monitoring will be strengthened, targeted measures will be taken in a timely manner. At the same time, the safety management of the evacuation personnel will be strengthened to avoid returning without authorization.

Ganzi Prefecture's Hydrological Center sent a traffic to the traffic after the dealer lake was leaked

As of the evening of September 6, the water conservancy department sent a total of 701 teams of 2380 people, investigating 4835 water conservancy projects (seats), of which 557 reservoirs, 1379 hydropower stations, 654 embankment, 84 culverts, 179 irrigation projects, and key water supply supply The project is 1770, and 212 small water conservancy projects such as Shantangba. A total of 167 (seats) of water conservancy engineering shocks were suspended, and 15 are currently emergency disposal.

The working group of the Ministry of Water Conservancy inspected the resettlement point drinking water condition

In the next step, the Ministry of Water Resources will continue to closely monitor the rainwater situation of the earthquake area, urge and guide the local water conservancy project to do a good job of investigation, emergency response and water conservancy engineering dispatch to prevent secondary disasters and ensure the safety of engineering and water supply.

Source: Chinese Water

Author: Huang Yiwei

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