Brief introduction of Wujintang Reservoir

The storage capacity exceeds 1 100 million cubic meters, which is the main water source in Huludao City and Nanpiao District, and plays an important role in flood control and drought relief in the lower reaches of Nver River, especially in Jinzhou City and Huludao City. The dam of Wujintang Reservoir is 288 meters long and 99 meters high, with a bottom width of 183.7 meters, a top width of 50 meters and a top height of 100 meters. Wujintang Reservoir freezes in winter and becomes civilized in March and April.

Diaoyu Island in the reservoir area is the best place for fishing. Surrounded by water on all sides, an arch bridge connects the Taishan Temple surrounded by water on three sides. The island is about 400 meters long and 70 meters wide. It is very quiet. To the west of Diaoyu Island is Bird Island, which is 3.5km long and 1 km wide. It is surrounded by water on three sides and connected with land on one side, and extends into the reservoir like a stick. Thousands of migratory birds live and breed here every spring, summer and autumn.

Inscription of Wujintang Reservoir: Brief Introduction of Wujintang Reservoir Project

Wujintang Reservoir is located in the northeast of Jinxi County, 42 kilometers away from the county seat. It was built at the beginning of 1970 and completed at the end of 1972. Later, there were many important factories and mines along the way because there were Shenshan railway and highway trunk lines 32 kilometers downstream of the reservoir and Jinzhou City 40 kilometers away. 1from the beginning of September, 1976 to the end of February, 1978 12, the standard construction was improved, and the flood control capacity of the reservoir was increased from once every 300 years to the flood control standard of maximum precipitation. A total of five million man-days were spent before and after, and * * * completed earthwork1200,000 cubic meters and concrete, with a total investment of10.9 million yuan.

Wujintang Reservoir Report

Wujintang Reservoir is located in Huangtukan Township, Nanpiao District, in the middle reaches of Daughter River. It got its name because there is a lot of coal stored at the bottom of the pond. It integrates flood control, water supply, fish farming, power generation, fruit industry and tourism. It is the most important comprehensive reservoir in western Liaoning and one of the large reservoirs in China. Wujintang Reservoir Management Bureau is located on the bank of Wujintang Reservoir and exercises management functions for Wujintang Reservoir.

Used to be a reservoir.

1958165438+16 October, construction of river dam, spillway and water conveyance tunnel started. Due to the low design standard and poor construction quality, the construction was stopped at 1960 under the instruction of the provincial water resources department. After the project stopped, all the river dams were washed away.

1969, with the approval of the provincial government, the construction of Wujintang Reservoir began to continue. On February 2,1,1970, presided over by Jinzhou city, 5,000 migrant workers participated in Jinxian county (now Linghai city), Suizhong county, Jinxi county (now Huludao city), Beizhen county (now Beizhen city), Heishan county and the suburbs of Jinzhou city. 1June, 973, Wujintang Reservoir was completed, with a dam length of 288m and a dam crest elevation of 94m (the actual dam height is 28m). In order to ensure the safety of people's property in the lower reaches of the reservoir, on September 26th, 1976, Wujintang Reservoir was built to improve the reservoir standard, and two beneficiary counties, Jinxi County and Jinxian County, provided labor force, which was completed by the end of February. This construction has improved the flood control capacity of the reservoir from once every 300 years to the maximum rainfall standard (calculated by the maximum rainfall of 940mm), and raised the dam to 99m (the actual dam height is 33m).

In addition to the river dam, there are auxiliary dams, flood control culvert, spillway, emergency spillway, power station and other large-scale water conservancy projects. Main dam, clay core sand shell dam, 288 meters long and 33 meters high; Auxiliary dam, clay inclined core earth dam, length 1 18m, height11m; The second auxiliary dam, clay core dam, is 83m long and19m high; Spillway, open and direct discharge type, consists of five arc-shaped steel plate gates with a width of 9 meters and a height of 6 meters, with the crest elevation of 82.50 meters and the maximum discharge of 5 120 second cubic meters; 40-meter wide emergency spillway with 7-meter-high dam. The opening standard is a once-in-500-year flood with a maximum flow of 2600 cubic meters. Water conveyance tunnel, a pressure tunnel with a diameter of 2.5 meters, a length of 195 meters, and a maximum discharge of 55 seconds cubic meters. However, due to the incomplete relocation of the reservoir at 1976, the actual storage capacity of the reservoir can only be 86 meters. Can't meet the water supply demand of the city. In 2002, with the approval of the Municipal People's Congress, it was decided to restore the reservoir water level to 88 meters. In March 2002, the immigrants in the upper reaches of the reservoir began to move. At the beginning of 2005, the resettlement work was basically completed. The relocation involves two villages, Bayi Long and Zhoutun, in Zhangxianggong Township, Lianshan District, and seven villages, Nuandong, Nuandong, Maxiang, Xiaocaotun, Badaohezi, Zhamugou and Xishan, in Nuantang Town, Nanpiao District, with a population of 350 households165,438+032, and an additional 3462.68 mu of submerged land. The reservoir used more than 80 million yuan. After the relocation, the water level of the reservoir can reach 88 meters, corresponding to the storage capacity 10028 million cubic meters, and the maximum storage capacity can reach 3170 thousand cubic meters.

Besides flood control function, the reservoir is mainly used for irrigation. After 1989, it was changed to industrial and urban domestic water supply. A total of 33.3 million cubic meters of water is supplied to Sanjiazi, Weizigou coal mine, Huangjia water source area, Jinxi water source engineering office and municipal water supply company every year. After 2006, the total water supply to Huangjia Water Source, Jinxi Water Source Engineering Office and Municipal Water Supply Company was19213000m3. 1May, 972, a hydropower station was built on the right branch of the water conveyance tunnel. On April 26th 1973, the first unit was installed for grid-connected power generation, and then four units were installed, each with a capacity of 320kW. The power station generates electricity by releasing water from the reservoir. From 1986 to 2005, the cumulative power generation reached19.27 million kWh.

Water removes fish fat.

Wujintang has 1.3 million mu of fish culture water surface. After the completion of the 65,438+0,976,5438+0 reservoir management station, fish culture was first carried out, and 7.6 million fry were put in that year. 1979 Establish a fry breeding farm, build a 70-mu fry pond in Huangtu Mountain, strive to cultivate large-scale fry, and insist on putting/kloc-0.5 to 2 million fry into the reservoir every year to realize self-reproduction. At present, the average annual catch of large water surface is 300,000 Jin, and there are many kinds of fish, including carp, silver carp, sticky fish, grass carp, Wuchang fish, yellow catfish and so on.

There are fruits in the forest.

There are 42 12 mu of forest land around the reservoir, including 27 15 mu of shelter forest, 0/78.5 mu of timber forest and 600 mu of economic forest (orchard). * * * There are nearly 2 1000 fruit trees, including 2,000 apple trees, 2,000 pear trees, 0/3,000 jujube trees, 300 plum trees and 0/50 apricot trees, with an annual output of 200,000 Jin.

The scenery is pleasant.

Wujintang Reservoir is one of the famous scenic spots in western Liaoning. 1985 was listed as the fourth of the "New Eight Scenery in Jinzhou" by Jinzhou Garden Management Office, and it is known as the "Golden Pearl". It is characterized by bridges, pavilions, platforms and fences built according to the magnificent engineering buildings of the reservoir and the beautiful mountainous terrain, which are dotted among natural mountains, forests, waters and islands. Lin Jing has a clean air and unique scenery.

Convenient transportation.

In 2002, the reservoir invested more than 800,000 yuan to transform the sandy road from Huangtukan Township to the reservoir in Nanpiao District built by 1970 into a plank road. In 2004, the investment was nearly 900,000 yuan, and the 8 km flood control road from Lianshan Reservoir to Zhangxianggong Township was built into a slate oil road. At the same time, a reinforced concrete bridge was built next to the Youth Bridge, which has been in service for more than 30 years. Ensure the smooth flow of the reservoir from north to south.