Taipingchi reservoir

Taipingchi reservoir

This entry is compiled and applied by "popular science China" Science Encyclopedia

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The dam site of a large plain reservoir in the middle and lower reaches of wengke River, a tributary of Xinkai River, is located near taipingchi village, Longwang Township, Nong'an County, Jilin Province. It is 50 kilometers away from Nong'an County in the north and 37 kilometers away from Changchun City in the West. It is a large-scale water conservancy project with flood control as the main purpose and comprehensive utilization of irrigation and fish culture. The reservoir has a total capacity of 201 million cubic meters, a flood regulation capacity of 147 million cubic meters, a Xingli (normal) water level of 183.73 meters, and a Xingli (water storage) capacity of 57 million cubic meters, covering an area of 34.3 square kilometers.

General situation of reservoir

Taipingchi reservoir is an inter basin water diversion and storage project, with a catchment area of 1706 square kilometers, including 913 square kilometers in wengke River Basin and 793 square kilometers in Xinkai River Basin. The average annual temperature in the reservoir area is 4.9 ℃, of which the average temperature in January is - 16.4 ℃, the average temperature in July is 23 ℃, the lowest temperature is - 39.5 ℃, the average annual sunshine hours for many years is 2550 hours, and the frost free period is 145-155 days. The average annual precipitation for many years is 515.7mm, and the precipitation from July to September accounts for about 70% of the annual precipitation. The average annual runoff of the reservoir is 74 million cubic meters. The annual average evaporation is 947 mm.

Taipingchi reservoir was built in 1942. In 1945, the dam burst and the project was abandoned. In 1958, the Water Conservancy Bureau designed and rebuilt all the projects of the reservoir. In 1958, the reservoir project was designed as a four-level building with a return period of 20 years and a check period of 50 years. In 1966, the Xinkai River Basin planning changed the reservoir project into a three-level building with a return period of 100 years and a check period of 300 years. In 1985, the reservoir reinforcement design changed the reservoir project into a two-level building with a return period of 100 years and a check period of 1000 years Nuclear, reservoir design flood level is 185.50 meters, check the flood water level is 186.50 meters, Xingli water level is 183.73 meters, the dead water level is 181 meters, the total storage capacity is 201 million cubic meters, of which the flood storage capacity is 147 million cubic meters, the Xingli reservoir capacity is 53 million cubic meters, and the dead storage capacity is 6 million cubic meters.

Xinkai River is a major tributary of Yitong River. It originates from Daheishan in Yitong county. The terrain of the drainage basin inclines from south to north, and the terrain is relatively flat and open. There are Xinkai River and wengke River in the drainage basin, belonging to Ersong water system. Taipingchi reservoir is an inter basin flood diversion and water storage project. The reservoir controls the area of wengke River Basin of 913 square kilometers and guides Xinkai River Basin of 793 square kilometers.

Wengke river is a major tributary of Xinkai River and the main water source of the reservoir. It originates from Liuyang township of Huaide County, flows through Datun town of Changchun City to duilongshan near Longwang township of Nongan county and flows into Xinkai River. The river channel above the reservoir is 58.5 km, with a gradient of 0.75%. The main channel is 4-5 m wide and 3-4 m deep, with an average annual runoff of 37 million cubic meters

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Key project

The reservoir project is composed of dam, water conveyance tunnel, flood control sluice, water diversion channel, etc. The dam is a homogeneous earth dam with a total length of 5900m, of which the main dam is 3200m long and the auxiliary dam is 2700m long, with a maximum height of 8m. The water conveyance tunnel is located on the main dam, which is a three hole reinforced concrete square culvert with a maximum discharge of 95m3 / S. the auxiliary dam is equipped with an extraordinary spillway with a maximum discharge of 78m3 / s. there is a flood discharge sluice downstream of the water conveyance tunnel, with a maximum discharge of 83.3m/s The designed diversion flow of the sluice is 11.9 cubic meters per second. In order to reduce the flood disaster in the area below shunshanpu reach of Xinkai River and replenish the water source of reservoir, a flood diversion sluice was built near shunshanpu village in 1991. Through the diversion Road, Xinkai River was led into the reservoir. The diversion road starts from shunshanpu and enters taipingchi reservoir through Shaoguo town. The length of the sluice is 8860m. The designed flow is 246m3 / s.

Reservoir benefit

Since the construction of taipingchi reservoir, there have been three rainstorm floods in 1985, 1986 and 1994 in the basin above the dam site, and the flood frequency is close to 100 year return period. After the completion of the taipingchi reservoir, it has protected the residents in 47 villages and 340 villages in 10 townships, such as Shaoguo and Longwang, as well as 40000 hectares of cultivated land, Changbai highway, Changbai railway, power transmission lines and other facilities. Before the construction of the reservoir, the average annual area of cultivated land suffering from floods in Kai'an, Baojia, Huajia and other waterlogged areas along the Yitong River and Xinkai River downstream of the reservoir was more than 7800 hectares, and after the construction of the reservoir, it was reduced to more than 700 hectares.

After danger removal and reinforcement, the reservoir designed to irrigate 1293 hectares of paddy fields downstream, and actually irrigated 1567 hectares of paddy fields from 1989 to 2000, which exceeded the original design by 21%. Taipingchi reservoir has a fish culture area of 21 square kilometers. It is used to culture carp, silver carp, crucian carp and other fish, with an annual output of 150 tons in 2003.

scenic spot

Movie City

Taiping pool is the movie "Nanjing! Nanjing! 》It's a base for shooting. Nanjing! Nanjing! 》The filming crew built a "Nanjing City" in taipingchi, Longwang Township, Nong'an County, Changchun at a cost of 12 million yuan. This film and television city is the ruins left by the film "Nanjing Massacre". It doesn't need any tickets, and no one is looking after it, but it has a large area.

A tourist resort

Taipingchi reservoir is 30 kilometers away from Changchun City, with convenient transportation. The Party committee and government of Nong'an County attach great importance to the tourism development and construction of taipingchi reservoir. They have completed the packaging of tourism projects and tourism planning and design, actively carried out investment promotion, and built taipingchi reservoir into an eco-tourism area focusing on agricultural sightseeing and leisure entertainment.

Taipingchi reservoir has a wide water area and beautiful scenery. On the bank, the grass is luxuriant, the wind is cool, the trees are shady, the insects are singing and the birds are singing; the water is sparkling, the fish boats are in line, the ducks are playing in the water, and the fish are jumping. Visitors can stroll on the embankment, enjoy the beautiful rural scenery, smell the smell of rice and soil brought by the cool wind on the water, go boating on the water, fish on the shore, and enjoy the green food of Nongan restaurant and reservoir fishing village. Every weekend, when you come here with your family, friends and colleagues, you can get rid of the hustle and bustle of the city and find a pleasant and comfortable place.

A good place for fishing

Fishing point: Xiyong Taiping reservoir. The whole reservoir is small. It is a river bay type reservoir. A small part of the reservoir is put out by the boss with nets to raise tilapia and freshwater Baichang, as well as ducks. In addition, most of them belong to gambling fishing. Except for flowering, silver carp are not allowed to drop, there are no other requirements. If the rod is suitable, it may not be allowed too much.

Target fish: 20 yuan a day, mainly crucian carp, carp, grass carp, a small amount of tilapia and freshwater white Chang.

Address: Southwest of Nong'an County, Changchun City (the junction of Longwang, Sangang and Shaoguo)

Longitude: 124.92767067384

Latitude: 44.027322435848

Ticket information: no ticket required.

Chinese PinYin : Tai Ping Chi Shui Ku