Jiaoxihe water conservancy construction

Jiaoxi is rich in hydraulic resources, with a theoretical reserve of about 660,000 kilowatts, of which the main stream is 410.3 million kilowatts, accounting for about 63% of the whole basin. There are about 480,000 kilowatts of exploitable hydraulic resources with an installed capacity of more than 500 kilowatts, and only 36,700 kilowatts have been developed and utilized at present.

Since the founding of the People's Republic of China, many water conservancy and hydropower projects have been built, mostly focusing on power generation, combined with comprehensive utilization of flood control, irrigation and aquaculture. At present, the total storage capacity of the built reservoirs is more than 34 million cubic meters, and the effective irrigation area is about 28,000 hectares. Baizhuyang Reservoir is located in the east of Baizhuyang in Xiping Town. The rainwater harvesting area is controlled at 3.23 square kilometers, and the designed dam type is homogeneous earth dam, which is 23.6 meters high and 98 meters long, with total storage capacity1.71.6000 cubic meters and storage capacity1.2600 cubic meters. The water conveyance culvert is a stone box culvert with a maximum flood discharge of 2.4 cubic meters per second. Spillway is channel type, with water depth of 1.5m and maximum flood discharge of 27m3/s.. 1958. The Young Pioneers in the province donated 654.38 million yuan to build it, so it is also called "Red Scarf Reservoir", with a total investment of 595,000 yuan and 325,000 working days. The dam was built in 1959, and the project was completed in1973+February. The main canal of the reservoir is 7 kilometers long, with a designed irrigation area of 6.5438+0.000 mu and an effective irrigation area of 3,000 mu, which solves the problem of irrigation water for Baizhuyang.

Ling Ke Reservoir is located in Ling Ke Village, Zhayang Township, Zherong County, belonging to Wupuxi, a tributary of the upper reaches of Longxi River. The control basin area above the dam site is 1.0 km2, the length of the main channel is 0.8km, and the gradient is 183.0‰.

Wuyanxia Reservoir is located on Longxi Branch Road in front of Wuyanxia Village on the north side of Zherong City. Rainwater collection area above dam site 1 km2, and tributary water diversion is 0.55 km2. The elevation of the intake is 99.5m, the maximum dam height is 22.5m, the crest length is 108m, and the width is 6m. The dam type is clay homogeneous gravity dam with crest elevation 10 1.5m, drainage culvert elevation of 87m, total storage capacity 1064m and Li Xing storage capacity of 840,000. The spillway is located on the left side of the dam, with a width of 18m and a total length of125m. The main canal on the right side of the dam is 6 kilometers long, with designed effective irrigation area 1504 mu and guaranteed irrigation area 1500 mu. The project started on1959,65438+February and was completed on 1960.

Longxi Reservoir is located between Liping Village and Baojianzhai Village in Zhayang Township, upstream of Longxi Township, 5 kilometers away from Chengguan, and the 104 National Road passes through the north side of the reservoir area. The rainwater collection area above the dam site is 10.85 km2. The dam type is a masonry hyperbolic arch dam with a dam height of 5 1 m, a dam bottom thickness of 10.76 m, a dam top thickness of 2 m, a dam top arc length of 157 m and a dam surface masonry of 22,600 cubic meters. The total storage capacity is 4.54 million cubic meters, and that of Li Xing is 3.68 million cubic meters. This is a comprehensive benefit project based on drinking water and irrigation in Chengguan, combined with the renovation of Longxi cascade hydropower stations. The supporting water diversion channel is located on the left bank, with a total length of 10 km, a designed irrigation area of 5,000 mu, and a guaranteed irrigation area of 3,500 mu, benefiting 7 administrative villages in suburb, Shuangcheng and Dongyuan Township. There is a power station behind the right bank dam in the dam area, which uses the reservoir to release water to generate electricity. The installed capacity of the power station is 100 kW × 2, and the annual designed electric energy is 550,000 kWh. Longxi Reservoir Project started in September 1976 and was completed in February 1982. Xianlong Bridge, a single-hole stone arch bridge built in the 19th year of Guangxu in Qing Dynasty (1839) on the ancient road from Zherong to Fuding, was submerged in the reservoir. 1995, the county waterworks changed to draw water from Longxi reservoir, with clean water quality and good social benefits.

Shuangjianxi Hydropower Station is located on the Dongxia tributary of Jiaoxi tributary in Taishun County, Wenzhou City, Zhejiang Province. It is a medium-sized reservoir with an installed capacity of 6,400 kW (2× 3,200), an annual designed power generation of/kloc-0.535 million kWh and a maximum storage capacity of/kloc-0.65438+500,000 cubic meters. The main project started construction in 1986, put into trial operation in July 1990, passed the commencement acceptance in August 1992, and passed the completion acceptance in February 5438+0, 2006. Mazhuping Reservoir is located in Shouning. Mazhuping Reservoir is located in the middle reaches of Chanxi River, which is 10 km away from the urban area. This is a comprehensive utilization project focusing on power generation, giving consideration to irrigation and flood control. Li Xing has a storage capacity of 232 1 1,000 cubic meters. The total downstream drop is 512m, which can be developed in four stages. The total installed capacity of electric energy is 33,700 kilowatts, and the average annual power generation for many years is 6.5438+62 million kWh. The project started on 1984 10 and was completed on 1989 12. The expansion project of the reservoir dam area and the first-class power station in Che Ling was completed at the same time, storing water to generate electricity. There are 246 mu of flooded arable land in the reservoir area, and 3 1 household and 1 person will be relocated. The total investment of the project is 7.47 million yuan, of which 2.89 million yuan is subsidized by the state. Qian 'an diversion canal and barrage are behind Qianyang Village in the lower reaches of Qianyang River in Xiping Town, and the rainwater collection area in the upper reaches is 3 15438+05 square kilometers. The barrage is a mortar gravity dam with a height of 1.6m and a length of 124m. The total length of the diversion canal is 7 1km, in which the main canal is 65km long, the designed flow at the head of the canal is 5.0m3/s, and the irrigation flow is 3.0m3/s. The irrigation area involves Xibing, Saiqi and Wanwu towns. The project started in April, 1958, and the water was supplied that year. 1964 transformation completed. * * * invested 3.937 million yuan and 2.345 million working days, and completed earthwork of 6.5438+0.95 million cubic meters, consuming 2,000 tons of cement, 234 tons of steel bars and 6.5438+0.245 cubic meters of wood. The diversion flow at the head of the canal is 5.3 cubic meters, and the designed irrigation area is 22,000 mu. Because the canal line is too long, the water loss along the canal is too large, and the actual irrigation area is 654.38+0.46 million mu. The supporting structure of Qian 'an diversion canal includes 9 aqueducts with a total length of 837.6m, 620m 1 side rainbow pipe, 8 1 culvert and 43 flood gates. There is 1 zhaixia hydropower station at 5 km of the waterway, with installed capacity of 150 kW, and 1 lion head electric irrigation station at 19km, with 5 installed units and power of 475 kW. 1964 September, Qian' an water diversion project management organization was established, and 10 management station was set up along the main canal. From 1965, the project began to benefit, and the average grain output in the irrigation area increased from 255 kg in 1965 to 498 kg in 1972, an increase of 95%.

Longxi diversion canal and barrage are located downstream of Muyangxi tributary. Upstream rainwater collection area 178 km2. The annual water output is 65.438+0.25 billion cubic meters, and the flow in dry season is 0.8 cubic meters per second. The barrage is a masonry gravity dam with a height of 2m and a length of 65m. The total length of the main canal is 23km, and the design reference flow is 1.0m3/s.. 1958. The project was once dismounted. 1965 continued construction, and 1968 was fully completed, giving full play to the benefits and replacing the original northwest foreign machine irrigation station. The total investment of the project is 585,900 yuan (including the state subsidy of 485,900 yuan), the total earthwork volume is 6,543,800 cubic meters, 223,900 working days, and the consumption of steel 1.5 tons, cement 65 tons and wood 30 cubic meters. Its main facilities include Zhoukeng Aqueduct, Shuangfeng Cave, 1 water culvert, 24 diversion gates, 19 drainage gates and 1 hydropower station, with an installed capacity of 225 kilowatts. The designed irrigation area is 6600 mu, and the actual irrigation area is 1 10,000 mu.

Muyangxi diversion project, the barrage is located at the downstream of Mindong Hydropower Station 1. 13 km, which refers to the tailwater of Mindong Hydropower Station. The height of the dam is10m, the length is 80m, the flow rate is 20 1 m3/s, and the rainwater collection area in the upstream is 810.8 million m2. The starting point of the main canal is 57 kilometers from Dongshankou, Gan Tang, with a designed irrigation area of 55,300 mu. The water diversion project started on 1977 and was completed on 1999. The canal length was12.848km.. Invested 4,250,800 yuan to build an urban hydropower station under Shiziyan in Muyang Town, and designed and installed 4 sets of 5,000 kilowatts, and 1982 installed 2 sets of 2,500 kilowatts to generate electricity.

Xiqin Water Diversion Project is located in Xiqin Village, Chengyang Town, covering an area of 23 square kilometers. There are 1 gravity dams with a height of 3m and a length of 20m. The water diversion channel is 6 kilometers long, of which the main canal is 3 kilometers long, with a diversion flow of 0.2 cubic meters per second, a designed irrigation area of 1000 mu and an actual irrigation area of 700 mu. The project was completed on 1964 with a total investment of 53,000 yuan. Name of the river where Fuan Hydropower Station is located with an installed capacity of more than 200 kilowatts Rainwater collection area (square kilometers) Dam height (meters) Installed and put into production Monthly power generation (10,000 kWh) Taiwan kW Zhaixia Hydropower Station Qianyangxi 2891.6022501961.60 mu of Mindong Hydropower Station. Yangxi 769 40.0031890019718384 Jiaoxi of Tan Song Hydropower Station 3300 2.50 2 200 1976 80 Muyangxi of Muyangxi Hydropower Station 818/kloc-0.

Yangmeizhai Hydropower Station and Yangmeizhai Hydropower Station are located in Yangmeizhai Village, located in the lower reaches of the Aoyang section of Xuxi River. 1956 started construction, 1957 was put into production in July, with an installed capacity of 50 kilowatts. The power station is developed by runoff, with an upstream basin area of 30 square kilometers, a head height of 20 meters and a flow of 0.5 cubic meters per second. At that time, Shouning's hydropower technical force was weak, so he hired engineers from the Provincial Water and Electricity Bureau to design and construct it. Because there is no expressway, the three materials and mechanical equipment are transported to the inclined beach by water first, and then transported to the construction site by hand on foot. After the completion of the power station, the domestic electricity consumption of county organs, schools, factories and some residents has been solved.

July 1st Power Station is located in Qixia Pavilion at the end of Dashu Village in the upper reaches of Chanxi River. 1967, Dashu Village has 1 water tailings dam, with a catchment area of 9 square kilometers. The natural drop is 96 meters, the flow rate is 0.2 cubic meters per second, two sets are installed, and the capacity is 135 kW. It was completed and put into operation on July 197 1.

Che Ling First-class Power Station is a cascade-developed third-class power station, which is the Mazhuping Reservoir Hub Project and located in Hou Jing Village, Xietan Town. 1In August, 1974, the inter-basin development scheme of hydropower resources in Weixi was selected, and a regulating reservoir with an effective storage capacity of 28,000 cubic meters was built at the pithead of Zhuguanlong reach of Weixi. The height of the masonry arch dam is 8.7 meters, and the upstream catchment area is controlled at 1 12 square kilometers. The water intake of the power station is constructed with a 54m short tunnel, a 120m open channel and a 15 12m long tunnel (with a section of 2.2× 2.4m), with a total head of 196.5m and an installation length of 1 342m and an inner diameter of 800mm. 1979 newly installed 1 set, with a capacity of 800 kilowatts.

Tantou Hydropower Station in Fu 'an City is the third-level hydropower station in the main stream of Dongjiang River in Fujian Province (the first-level hydropower station is Shangbaishi Hydropower Station, with installed capacity of 165MW). It is located in the upper reaches of Fu 'an City 15km, and the dam site controls a watershed of 2060Km2, with an average annual runoff of 2.539 billion m3, a total storage capacity of 25.55 million m3, and a total designed installed capacity of 30MW with the full support of governments at all levels and relevant departments. It was listed as a key project in Ningde City, and was put into operation on June 20 10, and the power was incorporated into the provincial power grid.

Baishi Water Control Project was jointly approved by the Ministry of Water Resources and the people's governments of Zhejiang and Fujian provinces in June 5438+February 65438+June 2008. The project is located on the main stream of Dongxi River in Saijiang River, with a drainage area of 1533 square kilometers, a total storage capacity of 258.5 million cubic meters, and an estimated total investment of about 2.746 billion yuan. The hub project consists of barrage, water diversion system, power plant (including ecological unit plant) and 220KV step-up switching station. The construction of this project is of great significance to effectively guarantee the agricultural production in our city, resist natural disasters and strengthen the management of Jiaoxi River basin. At present, the National Development and Reform Commission and the Ministry of Water Resources have listed this project as one of the projects in the General Layout Opinions on the Construction of Large Reservoirs in China (20 13-20 15), and it has been approved by the State Council.