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Akao Dam
The Akao Dam is a gravity dam on the Shō River in Nishiakao village about south of Nanto in Toyama Prefecture, Japan. It was constructed between 1974 and 1978. The dam has an associated 34 MW hydroelectric power station which was commissioned in 1978. Of the nine dams on the Shō River it is the fifth furthest downstream. See also * Ohara Dam – downstream *Narude Dam The Narude Dam is a gravity dam on the Shō River about south of Nanto on the border of Toyama and Gifu Prefecture is a Prefectures of Japan, prefecture of Japan located in the Chūbu region of Honshu. Gifu Prefecture has a population of ... – upstream References {{Dams in Toyama Prefecture Dams in Toyama Prefecture Gravity dams Dams completed in 1978 Dams on the Shō River Hydroelectric power stations in Japan Nanto, Toyama ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toyama Prefecture
is a prefecture of Japan located in the Chūbu region of Honshu. Toyama Prefecture has a population of 1,044,588 (1 June 2019) and has a geographic area of 4,247.61 km2 (1,640.01 sq mi). Toyama Prefecture borders Ishikawa Prefecture to the west, Gifu Prefecture to the south, Nagano Prefecture to the east, and Niigata Prefecture to the northeast. Toyama is the capital and largest city of Toyama Prefecture, with other major cities including Takaoka, Imizu, and Nanto. Toyama Prefecture is part of the historic Hokuriku region, and the majority of prefecture's population lives on Toyama Bay, one of the largest bays in Japan. Toyama Prefecture is the leading industrial prefecture on the Japan Sea coast and has the advantage of cheap electricity from abundant hydroelectric resources. Toyama Prefecture contains the only known glaciers in East Asia outside of Russia, first recognized in 2012, and 30% of the prefecture's area is designated as national parks. History ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shō River
The has its source in Mount Eboshi (烏帽子岳 ''Eboshigatake'') in the Shōkawa-chō area of Takayama, Gifu Prefecture, Japan. After flowing for through the northern part of Gifu Prefecture and the western part of Toyama Prefecture, it empties into Toyama Bay. River communities The river passes through or forms the boundary of the communities listed below. The area through which the river flows in Gifu is referred to as Shirakawa-gō, while the area in Toyama is referred to as Gokayama. Both areas are UNESCO World Heritage Sites because of their ''gasshō-zukuri'' houses. ;Gifu Prefecture: : Takayama, Shirakawa ( Ōno District) ;Toyama Prefecture: : Nanto, Tonami, Takaoka, Imizu Tributary *Toga River *Kotori River Dams The river is extensively developed for water storage, flood control and hydroelectric power generation. There are 16 major dams in the basin, seven of them are on tributaries. The major dams collectively have an installed power generation capaci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roller Gate
Roller may refer to: Birds *Roller, a bird of the family Coraciidae * Roller (pigeon), a domesticated breed or variety of pigeon Devices * Roller (agricultural tool), a non-powered tool for flattening ground * Road roller, a vehicle for compacting ** Steamroller, a form of road roller * Roller, an element of a rolling-element bearing * Roller, used in rolling (metalworking) * Roller, in a roller mill, to crush or grind various materials * Rolling pin, a compacting device used for preparing dough for cooking * Roller (BEAM), a robot * Bicycle rollers, a type of bicycle trainer * Hair roller, used to curl hair * Paint roller, a paint application tool * Roller, or training surcingle, around a horse's girth Arts and entertainment * Bay City Rollers, or the Rollers, a Scottish pop rock band * "The Roller", a 2011 song by Beady Eye * "Roller" (Apache 207 song), 2019 * "Roller" (April Wine song), 1978 * ''Roller'' (Goblin album), 1976 * Roller, partner of the Optimus Prime cha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaplan-type
The Kaplan turbine is a propeller-type water turbine which has adjustable blades. It was developed in 1913 by Austrian professor Viktor Kaplan, who combined automatically adjusted propeller blades with automatically adjusted wicket gates to achieve efficiency over a wide range of flow and water level. The Kaplan turbine was an evolution of the Francis turbine. Its invention allowed efficient power production in low-head applications which was not possible with Francis turbines. The head ranges from and the output ranges from 5 to 200 MW. Runner diameters are between . Turbines rotate at a constant rate, which varies from facility to facility. That rate ranges from as low as 54.5 rpm (Albeni Falls Dam) to 450 rpm. Kaplan turbines are now widely used throughout the world in high-flow, low-head power production. Development Viktor Kaplan, living in Brünn, Austria-Hungary (now Brno, Czechia), obtained his first patent for an adjustable blade propeller turbine in 1912. Bu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravity Dam
A gravity dam is a dam constructed from concrete or stone masonry and designed to hold back water by using only the weight of the material and its resistance against the foundation to oppose the horizontal pressure of water pushing against it. Gravity dams are designed so that each section of the dam is stable and independent of any other dam section. Characteristics Gravity dams generally require stiff rock foundations of high bearing strength (slightly weathered to fresh), although in rare cases, they have been built on soil foundations. The bearing strength of the foundation limits the allowable position of the resultant force, influencing the overall stability. Also, the stiff nature of the gravity dam structure is unforgiving to differential foundation settlement, which can induce cracking of the dam structure. Gravity dams provide some advantages over embankment dams, the main advantage being that they can tolerate minor over-topping flows without damage, as the conc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nanto, Toyama
is a city in Toyama Prefecture, Japan. It is in a mountainous area in the south-west corner of the prefecture just north of Gifu Prefecture. It is home to the Gokayama UNESCO World Heritage site. , the city had an estimated population of 51,669 in 17,761 households and a population density of 75.8 persons per km². Its total area is . Geography Nanto is located in the southwestern Toyama Prefecture, and is bordered by Ishikawa Prefecture to the west and Gifu Prefecture to the south. The northern part of the city is within the Tochi plains, and the southern portion of the city is mountainous. Much of the area is a dispersed settlement typical of this region of Japan. The different regions of Nanto consist of Fukuno, Fukumitsu, Johana, Inokuchi, and Inami. Surrounding municipalities *Toyama Prefecture ** Oyabe ** Tonami ** Toyama *Ishikawa Prefecture ** Kanazawa ** Hakusan *Gifu Prefecture ** Hida ** Shirakawa Climate Nanto has a humid continental climate (Köppen ''Cfa'') c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north toward the East China Sea, Philippine Sea, and Taiwan in the south. Japan is a part of the Ring of Fire, and spans an archipelago of 6852 islands covering ; the five main islands are Hokkaido, Honshu (the "mainland"), Shikoku, Kyushu, and Okinawa. Tokyo is the nation's capital and largest city, followed by Yokohama, Osaka, Nagoya, Sapporo, Fukuoka, Kobe, and Kyoto. Japan is the eleventh most populous country in the world, as well as one of the most densely populated and urbanized. About three-fourths of the country's terrain is mountainous, concentrating its population of 123.2 million on narrow coastal plains. Japan is divided into 47 administrative prefectures and eight traditional regions. The Greater Tokyo Ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydroelectric
Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies one sixth of the world's electricity, almost 4500 TWh in 2020, which is more than all other renewable sources combined and also more than nuclear power. Hydropower can provide large amounts of low-carbon electricity on demand, making it a key element for creating secure and clean electricity supply systems. A hydroelectric power station that has a dam and reservoir is a flexible source, since the amount of electricity produced can be increased or decreased in seconds or minutes in response to varying electricity demand. Once a hydroelectric complex is constructed, it produces no direct waste, and almost always emits considerably less greenhouse gas than fossil fuel-powered energy plants. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ohara Dam
The Ohara Dam is a gravity dam on the Shō River in Ohara village about south of Nanto in Toyama Prefecture, Japan. It was constructed between 1939 and 1942. The dam has an associated 97.6 MW hydroelectric power station which was built in two parts. The first part of the power station (51.3 MW) was commissioned in 1942 and the second part of the power station (46.3 MW) was commissioned in 1980. Of the nine dams on the Shō River it is the fourth furthest downstream. See also * Soyama Dam – downstream *Akao Dam The Akao Dam is a gravity dam on the Shō River in Nishiakao village about south of Nanto in Toyama Prefecture, Japan. It was constructed between 1974 and 1978. The dam has an associated 34 MW hydroelectric power station which was commissioned ... – upstream References {{Dams in Toyama Prefecture Dams in Toyama Prefecture Gravity dams Dams completed in 1942 Dams on the Shō River Hydroelectric power stations in Japan 1942 establishments in Japan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Narude Dam
The Narude Dam is a gravity dam on the Shō River about south of Nanto on the border of Toyama and Gifu Prefecture is a Prefectures of Japan, prefecture of Japan located in the Chūbu region of Honshu. Gifu Prefecture has a population of 1,991,390 () and has a geographic area of . Gifu Prefecture borders Toyama Prefecture to the north; Ishikawa Prefecture ...s, Japan. It was constructed between 1950 and 1952. The dam has an associated 97 MW hydroelectric power station which was built in two parts. The first part of the power station (37 MW) was commissioned in 1951 and the second part of the power station (60 MW) was commissioned in 1975. Of the nine dams on the Shō River it is the sixth furthest downstream. See also * Akao Dam – downstream * Tsubawara Dam – upstream References {{Dams in Gifu Prefecture Dams in Toyama Prefecture Dams in Gifu Prefecture Gravity dams Dams completed in 1952 Dams on the Shō River Hydroelectric power stations in Japan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams In Toyama Prefecture
A dam is a barrier that stops or restricts the flow of surface water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for activities such as irrigation, human consumption, industrial use, aquaculture, and navigability. Hydropower is often used in conjunction with dams to generate electricity. A dam can also be used to collect or store water which can be evenly distributed between locations. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as dikes) are used to manage or prevent water flow into specific land regions. The earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC. The word ''dam'' can be traced back to Middle English, and before that, from Middle Dutch, as seen in the names of many old cities, such as Amsterdam and Rotterdam. History Ancient dams Early dam building took place in Mesopotamia and the Middle East. Dams were used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravity Dams
A gravity dam is a dam constructed from concrete or stone masonry and designed to hold back water by using only the weight of the material and its resistance against the foundation to oppose the horizontal pressure of water pushing against it. Gravity dams are designed so that each section of the dam is stable and independent of any other dam section. Characteristics Gravity dams generally require stiff rock foundations of high bearing strength (slightly weathered to fresh), although in rare cases, they have been built on soil foundations. The bearing strength of the foundation limits the allowable position of the resultant force, influencing the overall stability. Also, the stiff nature of the gravity dam structure is unforgiving to differential foundation settlement, which can induce cracking of the dam structure. Gravity dams provide some advantages over embankment dams, the main advantage being that they can tolerate minor over-topping flows without damage, as the conc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
