China News Service Huanggang, July 7 (Ma Furong, Zhou Yong, Fang Jun) Affected by the recent continuous heavy rainfall, the Baiyanghe Reservoir Dam in Xishui County, Huanggang City, Hubei Province suffered from large-scale flooding and the left abutment fell off the slope. The reporter learned from the office of the Huanggang City Flood Control and Drought Relief Headquarters on the 7th that there are currently no reports of casualties and emergency work is being carried out in an orderly manner.
Emergency scene. Photo by David
The Baiyanghe Reservoir was built in 1958. There are 7 villages in the two townships across the border and Tuanbei in the reservoir area, with a rain area of 21.4 square kilometers and a total storage capacity of 24.03 million cubic meters.
Rammed piles will be used to stabilize the foundation of the dam's slope-slope area, and trenches will be used to conduct water. Photo by David
Since July 4, the incoming water from the upper reaches of the Baiyang River Reservoir, the continuous strong rainfall in the reservoir area, and the reservoir's water storage have all exceeded history. On July 5, the total upstream water flow of the reservoir reached 6 million cubic meters, the total discharge volume was 4 million cubic meters, and the daily storage capacity increased by 2 million cubic meters. At 7 pm on July 5, the water level of the reservoir rose to 84.62 meters, exceeding the limit overflow level (83.88 meters) by 0.74 meters.
Due to prolonged heavy rainfall and high water level operation, the dam slope of the Baiyanghe Reservoir suddenly broke out at noon on July 6 and the left abutment fell off. The risk area is about 1,000 square meters.
Rammed piles will be used to stabilize the foundation of the dam's slope-slope area, and trenches will be used to conduct water. Photo by David
After the danger occurred, Xishui County Party Committee and County Government immediately took measures such as covering the outer slope of the reservoir with colored strips, digging and guiding the drainage ditch in the off-slope area, nailing the wooden piles from the bottom up in the off-slope area, and dispatching emergency materials. Carry out risk elimination work. Liu Xuerong, secretary of the Huanggang Municipal Party Committee and commander of the Municipal Flood Control and Drought Relief Command, and Qiu Lixin, the mayor of Huanggang City and commander of the Municipal Flood Control and Drought Relief Command, rushed to the scene to discuss with the provincial and municipal experts to clarify the disposal plan and guide emergency rescue.
At present, the emergency rescue has mainly taken five measures: organizing the transfer of 3 townships, 22 villages, and 28,858 people involved in the reservoir; tamping piles for the dam slope area, digging trenches to guide the water; The dam is covered to prevent later heavy rain erosion; the second spillway is excavated to accelerate the speed of flood discharge; a special class is organized to conduct uninterrupted network inspection of the entire dam body, and timely treatment of the discovered problems.
Rescue is in progress. Photo by David
As of 5 o'clock on July 7, a total of more than 500 militia reserve members and party members have been organized, more than 20 sets (sets) of construction machinery and 160 transport vehicles have been invested. All 28,858 people included in the transfer scope will be safely transferred, of which centralized transfer 1579 people were resettled and 27279 people were scattered; the second spillway has been dug successfully, and the discharge flow is 15 cubic meters per second, which is currently being further excavated; the sloping area of the dam is basically stable and no further expansion has occurred; inspection of the dam inspection It is still continuing, and the small amount of scattered leaching found is handled safely.
At present, the rescue work is still in progress. According to reports, the next step will be to take engineering measures to strengthen the dam body to prevent the spread of danger; make every effort to ensure the normal operation of the spillway, reduce the water level and reduce the pressure on the dam body as soon as possible; continue to conduct daily inspections, find and deal with the danger in a timely manner; complete the transfer People's resettlement work. (Finish)