The second largest reservoir in Weifang

Moushan Reservoir is a large-scale (2) reservoir in the middle and lower reaches of Wenhe River, a tributary of Weihe River in Shandong Province, which mainly focuses on flood control and takes into account the comprehensive utilization of urban water supply, agricultural irrigation and aquaculture.

1, river basin overview

Moushan Reservoir is located at the foot of Moushan Mountain, 6 kilometers southwest of Anqiu City, with a control basin area of 1.262 square kilometers, which is a fan-shaped basin with an average width of 2 1 km. The length of the main stream above the dam site is 765,438+0 km and the slope of the main stream is 2.65,438+0.2 m/km. The whole basin is a hilly area with poor vegetation conditions. The basic seismic intensity of the reservoir area is 8 degrees, and the design seismic intensity of the dam is 8 degrees.

There are three large reservoirs (Gaoya) 1 seat, three medium-sized reservoirs (Daguan, Yishan and Shangzhuang) and 93 small reservoirs in the basin above the reservoir. There are Ji Jiao Railway, National Highway 206, expressway of Qing Ji and expressway in the future in the lower reaches of the reservoir. Protect some towns and villages in Anqiu, Fangzi, Changyi and Hanting, with a population of 6,543.8+0,000 and cultivated land of 6,543.8+0.2 million mu.

Engineering planning and design standards are: once-in-a-century flood design and once-in-a-century flood check.

The Wenhe River basin where Moushan Reservoir is located is located in the East Asian monsoon region, which belongs to the continental climate of the monsoon region. The four seasons are distinct and the temperature difference is great. In winter, northeast and northwest winds prevail, with little precipitation and cold and dry weather. Southeast and southwest winds prevail in summer, with frequent cold and warm air activities, abundant water vapor and frequent storms and floods. The annual average precipitation is 702.3 mm. The annual average temperature 12.2 degrees, the highest is 40.5 degrees, and the lowest is -2 1.4 degrees. Frost-free period 189 days, and the maximum frozen soil depth is 50 cm.

As the only water source in Anqiu City, the reservoir has achieved remarkable comprehensive benefits in flood control, irrigation and freshwater aquaculture since its operation, which has played a great role in the development of Anqiu's national economy.

2. Process documentary

Moushan Reservoir/KLOC-0 started construction in June, 1959, and was put into storage in June, 1960. After the resettlement work is completed, 2,240 hectares of land in three communes will be relocated, involving 3/kloc-0 villages, 304/kloc-0 households and 65,438 people. Due to many factors and historical reasons, the relocation of immigrants in the reservoir area is not complete. Moushan Reservoir is a dangerous reservoir, which has been unable to store water normally for many years and its water level is low. Some people in immigrant villages build houses, cultivate land and develop various economies within the flood control water level line.

Moushan Reservoir is a typical "trilateral project". Coupled with tight time, heavy tasks, backward technical equipment and management level, resulting in poor engineering quality, low standards, large tail work and other congenital deficiencies. After it was put into operation, there were many dangerous situations. The project starts from 1959 to 200 1. After its completion, it has experienced safety protection engineering, safety expansion engineering and safety dam foundation. Although it has been reinforced many times, it has only solved some dangerous situations, and there are still many serious security risks. After safety appraisal, the reservoir is a dangerous reservoir and the dam is a third-class dam. In order to ensure the safety of reservoir engineering and people's lives and property downstream, and give full play to the comprehensive benefits of reservoir flood control and benefit, the reservoir is currently being reinforced.

The irrigation area of Moushan Reservoir was successively developed and constructed in 196 1 year, and 1966 brought benefits into play. 20 10 The Ministry of Water Resources approved the design irrigation area of 300,000 mu and the effective irrigation area of 240,000 mu to irrigate farmland in Anqiu City, Fangzi District and xiashan district 12 towns. The total length of main canal is 23km, 5 main canals are 9 1km, and 54 branch canals are 158km. There are 7673 buildings on the canal system. For more than forty years, Moushan Irrigation District has made great contributions to the development of industrial and agricultural production and the improvement of people's material and cultural living standards. The irrigation area has played its due role in local agricultural production and rural social and economic development. It is an important commodity grain base in Anqiu City, with remarkable social and economic benefits and huge ecological benefits.