Wujintang reservoir, Nanpiao District, Huludao City, Liaoning Province

Wujintang reservoir

Wujintang reservoir is located 35 kilometers northwest of Huludao City in Liaoning Province, near Wujintang village. It is the seventh largest water conservancy project in Liaoning Province. Wujintang is named for its underground coal deposits. The reservoir is located in a wide valley in the mountainous area. It is formed by the middle reaches of the Nuer River, with a water surface area of 12 square kilometers.

brief introduction

The water storage is more than 100 million cubic meters, which is the main water source for Huludao City and Nanpiao District. It plays an important role in flood control and drought relief for the lower reaches of nuerhe River, especially in Jinzhou City and Huludao City. The dam of Wujintang reservoir is 288 meters long, 99 meters high, 183.7 meters wide at the bottom, 50 meters wide at the top and 100 meters high at the top of the wave wall. The Wujintang reservoir freezes in winter and opens in March and April.

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

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 first built in early 1970 and completed in late 1972. Later, because there are Shenshan railway and highway trunk lines 32 kilometers downstream of the reservoir and Jinzhou City 40 kilometers downstream, there are many important factories and mines along the way, and the construction standards were raised from early September 1976 to late December 1978, The flood control capacity of the reservoir will be raised from once in 300 years to the flood control standard of the maximum possible precipitation. Before and after the project, the total labor force was 5 million man days, and a total of 1.2 million cubic meters of earthwork and 25000 cubic meters of concrete were completed, with a total investment of 10.9 million yuan.

Report from Wujintang reservoir

Wujintang reservoir is located in huangtukan Township, Nanpiao District, in the middle of the nuerhe river. It is named for the large amount of coal stored at the bottom of the reservoir. It integrates flood control, water supply, fish culture, power generation, forestry 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 performs the management function of Wujintang reservoir.

Once a reservoir

On November 6, 1958, the construction of dam, spillway and water conveyance tunnel was started. Due to the low design standard and poor construction quality, the construction of the dam was stopped in 1960 under the instruction of the Provincial Department of water resources.

In 1969, with the approval of the provincial government, the construction of Wujintang reservoir began. Construction started on February 21, 1970, and was presided over by Jinzhou City. 5000 migrant workers were transferred from 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. In June 1973, Wujintang reservoir was completed. The length of the dam is 288 meters and the crest elevation is 94 meters (the actual dam height is 28 meters). In order to ensure the safety of people's property in the lower reaches of the reservoir, Wujintang reservoir was constructed to improve the reservoir standard on September 26, 1976. Jinxi County and Jinxian County benefited from the construction, and the construction was completed by the end of December 1978. This construction will raise the flood resistance capacity of the reservoir from once-in-300-year to the maximum rainfall standard (calculated by 940 mm), and raise the dam to 99 meters (the actual dam height is 33 meters).

In addition to the dam, the reservoir also has auxiliary dam, flood diversion culvert, spillway and extraordinary spillway, power station and other large water conservancy projects. The main dam, clay core sand shell dam, is 288 meters long and 33 meters high; the first auxiliary dam, clay inclined wall dam, is 118 meters long and 11 meters high; the second auxiliary dam, clay core wall dam, is 83 meters long and 19 meters high; the spillway, open and direct discharge type, is composed of five 9 meters wide and 6 meters high radial steel plate gates, with the crest elevation of 82.50 meters and the maximum discharge of 5120 seconds; Extraordinary spillway, 40 meters wide, with 7-meter-high self breaking dam, with a 500 year return period flood and a maximum discharge of 2600 cubic meters; water conveyance tunnel, a pressure tunnel with a diameter of 2.5 meters, has a length of 195 meters and a maximum discharge of 55 cubic meters. However, due to the incomplete relocation of the reservoir when the standard was raised in 1976, the actual storage capacity of the reservoir can only be 86 meters. It can not meet the demand of water supply in the city. In 2002, with the approval of the Municipal People's Congress, it was decided to restore the water level of the reservoir at an elevation of 88 meters. In March 2002, the upper reaches of the reservoir began to move. At the beginning of 2005, the migration basically ended. The relocation involved two villages of babialong and zhoutun in zhangxianggong township of Lianshan District, and seven villages of nuandong, nuanxi, maziang, xiaocaotun, badaohezi, zhamugou and Xishan in nuancheng town of Nanpiao District, with a total of 350 households and 1132 people. The newly flooded land was 3462.68 mu. More than 80 million yuan has been used for the reservoir. After the relocation, the water level of the reservoir can reach 88 meters, the corresponding storage capacity can reach 100.28 million cubic meters, and the maximum storage capacity can reach 317 million cubic meters.

In addition to the function of flood control, the reservoir was 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, 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 was 19.213 million cubic meters. In May 1972, a hydropower station was built on the right branch of the water conveyance tunnel. On April 26, 1973, the first unit was installed with grid connected power generation. Four units with a capacity of 320 kW were installed successively. From 1986 to 2005, the total power generation reached 19.27 million kwh.

The water is clear and the fish is fat.

Wujintang has 13000 mu of water surface for fish culture. After the completion of the reservoir management station in 1971, it was the first to cultivate fish in Xingshui, and 7.6 million fry were put in that year. In 1979, a fry breeding farm was set up, and 70 mu of fry pond was built in Huangtu mountain, striving to cultivate large-scale fry. 1.5 to 2 million fry were put into the reservoir every year, realizing self-sufficiency in self propagation. At present, 300000 Jin of fish are caught annually on the large water surface, and there are many kinds of fish, including carp, silver carp, silver carp, sticky carp, grass carp, Wuchang fish, yellow catfish, etc.

There are trees and fruits.

There are 4212 mu of forest land around the reservoir, including 2715 mu of shelter forest, 178.5 mu of timber forest and 600 mu of economic forest (orchard); there are nearly 21000 fruit trees, including 2000 apple trees, 2000 pear trees, 13000 jujube trees, 300 plum trees and 150 apricot trees, with an annual output of 200000 Jin of fruit.

The scenery is pleasant.

Wujintang reservoir is one of the famous scenic spots in western Liaoning. In 1985, it was listed as the fourth of "Jinzhou new eight sceneries" by Jinzhou landscape management office, known as "Wujin pearl". Its characteristics are: bridges, pavilions, platforms and hurdles built according to the magnificent engineering buildings of the reservoir and the beautiful mountain terrain are interspersed among the natural mountains, forests, waters and islands. The wind is clear, the forest is quiet, and the mountains and rivers are set against each other in a unique way.

convenient transportation.

In 2002, the reservoir invested more than 800000 yuan to transform the sandy road built in 1970 from huangtukan Township in Nanpiao District to the reservoir, which is more than 7 km long, into Banyou road. In 2004, an investment of nearly 900000 yuan was made to build the 8 km flood control road from the reservoir to zhangxianggong Township in Lianshan District into a Banyou road. At the same time, a reinforced concrete bridge was built beside the youth bridge, which has been in service for more than 30 years. Ensure the smooth flow of the reservoir from north to south.

Adjacent scenic spots

Jiangjun Lake zhangxueliangbei Zhumei cemetery Suizhong xietalongwan Park Wujintang reservoir tazigou twin towers zushi square Daheishan Wanghai Temple Shengshui Temple Lingshan Temple Jieshi Palace jiumenkou Great Wall Qingquan Temple

Chinese PinYin : Liao Ning Sheng Hu Lu Dao Shi Nan Piao Qu Wu Jin Tang Shui Ku