2021-12-08

The Guoqing reservoir project, a key water conservancy project in Yushu, Qinghai, was successfully capped

By yqqlm yqqlm

Xining, December 8 (Qi zengbei, Shi Weiwei) the reporter learned from China water resources and hydropower Fourth Engineering Bureau Co., Ltd. (hereinafter referred to as “Sinohydro fourth bureau”) on the 8th that the National Day reservoir project in Yushu City undertaken by Sinohydro Fourth Engineering Bureau Co., Ltd. was successfully capped on the same day

Guoqing reservoir project is located on zhaxike River, a secondary tributary of Tongtianhe River, Yushu City, Qinghai Province, and guoqinggou, a primary tributary, 15 kilometers away from Jiegu Town, Yushu city. The project was officially started in November 2017 with a total investment of 340 million yuan. It is a comprehensive water conservancy project with the largest water conservancy construction scale, the largest investment and the longest social benefits since the founding of Yushu government. It is also a key water conservancy project in Qinghai Province

it is understood that the area where Guoqing reservoir is located has an altitude of 4200m, a dam height of 52.9m, a total reservoir capacity of 4.372 million cubic meters and an effective regulation reservoir capacity of 3.48 million cubic meters. After completion, it can ensure the production and domestic water for 175000 people in Yushu city and the greening and irrigation water for 24000 mu of North and South Mountains in Yushu City, and will play a significant role in promoting agricultural development, poverty alleviation and economic and social development

The Guoqing reservoir project, a key water conservancy project in Yushu, Qinghai, was successfully capped

the picture shows the construction site of Guoqing reservoir, a key water conservancy project in Yushu, Qinghai Province. According to Xie Ziran, project manager of Yushu Guoqing reservoir of Sinohydro bureau 4, according to the geological characteristics of Yushu area, the dam has selected asphalt concrete core impervious core with strong deformation resistance. The filling volume of asphalt concrete core wall is 9300 m3, and the compaction thickness of each layer of asphalt core wall is 25 cm, a total of 206 layers

LV Wen, chief engineer of Guoqing reservoir project, said that the asphalt concrete core wall has good anti-seepage performance, strong adaptability to deformation, high seismic performance and unique crack self-healing ability. “In addition to controlling the quality, temperature, thickness and rolling times of raw materials, it is also necessary to control the combination of layers to prevent the surface pollution of core wall, which is the most difficult, cumbersome and meticulous part of the whole project.”

“The construction of the National Day reservoir project is conducive to promoting the process of urban-rural integration in Yushu City, improving the guarantee rate of local water supply, consolidating and improving the achievements of post disaster reconstruction, solving the problem of safe drinking water for residents, promoting harmony, stability and long-term stability in ethnic minority areas, and has good economic, ecological and social benefits,” said Zheng Yujing, deputy secretary of the Party committee of the north company of the fourth Hydropower Bureau. (end)

The Guoqing reservoir project, a key water conservancy project in Yushu, Qinghai, was successfully capped(1)