| 词条 | Outardes-4 |
| 释义 |
| name = Outardes-4 generating station | image = | image_caption = | name_official = Outardes-4 Dam No.1 | dam_crosses = Outardes River | location = Manicouagan Regional County Municipality, Quebec, Canada | dam_type = Embankment dam | dam_length = {{Convert|2087|ft|m|abbr=on}} | dam_height = {{Convert|437|ft|m|abbr=on}} | dam_width_base = | dam_width_crest = | dam_volume = {{Convert|9600000|yd3|m3|abbr=on}} | spillway_type = Service, gate controlled | spillway_capacity = | construction_began = | opening = | cost = | owner = Hydro-Québec | res_name = Outardes-4 Reservoir | res_capacity_total = {{convert|24.3|km3|acre.ft|abbr=on}} | res_catchment = | res_surface = {{Convert|252|mi2|km2|abbr=on}} | res_max_depth = | plant_type = C | plant_operator = | plant_turbines = 4 x Francis turbines | plant_capacity = 785 MW | plant_annual_gen = | plant_commission = 1969 | plant_decommission = | location_map = Canada | location_map_caption = | location_map_size = | coordinates = {{coord|49|42|20|N|68|54|21|W|type:landmark|display=inline,title}} | website = | extra = }}Outardes-4 is a hydroelectric power station and dam on the Outardes River {{convert|70|km|mi|1|abbr=on}} northwest of Baie-Comeau, Quebec, Canada. The power station was commissioned in 1969 and is supplied by the Outardes-4 Reservoir which is created by seven additional dams.[1][2] ConstructionOutardes-4 was built in conjunction with the Manicouagan-Outardes project and is the northern most power station on the Outardes River. Construction on the diversion tunnel for the Outardes River began in September 1964 and was finished in April 1965. A cofferdam was constructed upstream to direct the river into the diversion tunnel; none was built downstream because the river's grade was sufficient. Once the river was diverted, work commenced on Dam No. 1's foundation. Workers and engineers cleared alluvial material from the riverbed but ran into uplift faults and pot-holes. Around six pot-holes with {{Convert|10|ft|m|abbr=on}} to {{Convert|15|ft|m|abbr=on}} diameters and up to {{Convert|60|ft|m|abbr=on}} deep had to be excavated, partly by hand. Eventually, those under the dam's foundation were filled in with concrete.[3] DamsThe Outardes-4 Reservoir is impounded by eight different dams. The main dam is Dam No. 1 and is a rock-fill, earthen embankment dam along with Dam No. 2. The six other dams are saddle and auxiliary dams; one is rock and earth-fill, four are earth-fill dikes and one serves as a controlled concrete spillway. Dam No. 1 is {{Convert|2087|ft|m|abbr=on}} long and {{Convert|437|ft|m|abbr=on}} high and made of {{Convert|9600000|yd3|m3|abbr=on}} of material while the second largest dam, No. 2 is {{Convert|2383|ft|m|abbr=on}} long and {{Convert|335|ft|m|abbr=on}} high. Dam No. 2 is located {{Convert|2|km|mi|abbr=on}} north of No. 1 on a side-valley is made of {{Convert|6100000|yd3|m3|abbr=on}} of material. Water from the reservoir helps regulate river flow and power generation at the downstream Outardes-3 and Outardes-2 power stations.[3] Power stationThe Outardes-4 power station is located on the west bank of the Outardes River, adjacent to Dam No. 1. Four {{Convert|850|ft|m|abbr=on}} long, {{Convert|20|ft|m|abbr=on}} wide penstocks deliver water from the reservoir to each of the power station's turbines. The power station was commissioned in 1969 and currently has a 785 MW capacity.[4] The power station's turbines were rehabilitated in 2009 which had increased generation capacity by 56 MW.[5] See also{{stack|{{Portal|Canada|Water|Renewable energy}}}}
Notes1. ^{{cite web|title=Hydroelectric Plants in Quebec|url=http://www.industcards.com/hydro-canada-qc.htm|publisher=Power Plants Around The World|accessdate=20 August 2010|deadurl=yes|archiveurl=http://arquivo.pt/wayback/20090719052842/http%3A//www.industcards.com/hydro%2Dcanada%2Dqc.htm|archivedate=19 July 2009|df=}} 2. ^{{cite web|title=Hydroelectric Generating Stations|url=http://www.hydroquebec.com/generation/centrale-hydroelectrique.html|publisher=HydroQuebec|accessdate=20 August 2010}} 3. ^1 {{harvnb|Paradis|1967|pp=40–42}} 4. ^{{harvnb|Paradis|1967|p=44}} 5. ^{{cite web|title=Rehabilitation of Outardes-4 Generating Station|url=http://www.hydroquebec.com/projects/outardes_4.html|publisher=Hydro-Quebec|accessdate=21 August 2010}} References
5 : Dams in Quebec|Manicouagan-Outardes hydroelectric project|Dams completed in 1969|Energy infrastructure completed in 1969|Dams on the Outardes River |
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