Ōigawa Dam
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Ōigawa Dam
The is a dam on the Ōi River in Haibara District, Kawanehon, Shizuoka Prefecture on the island of Honshū, Japan. It has a hydroelectric power generating station owned by the Chubu Electric Power Company. History The potential of the Ōi River valley for hydroelectric power development was realized by the Meiji government at the start of the 20th century. The Ōi River was characterized by a high volume of flow and a fast current. Its mountainous upper reaches and tributaries were areas of steep valleys and abundant rainfall, and were sparsely populated. In 1906, a joint venture company, the was established, and began studies and design work on plans to exploit the potential of the Ōi River and Fuji River in Shizuoka Prefecture. The British interests were bought out by 1921. The Ōigawa Dam was the second dam to be constructed on the main stream of the Ōi River. Construction began in 1934 and was completed in 1936. Electrical production was nationalized under the aegis of th ...
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Ōi River
The is a river in Shizuoka Prefecture, Japan. Geography The Ōi River flows from the Akaishi Mountains, the branch of the Japanese Southern Alps which form the border between Shizuoka, Nagano and Yamanashi prefectures. These mountains, with peaks ranging from , are characterized by heavy rainfall (up to per year) and deep V-shaped valleys. The river follows a generally southern course, with seven wide bends in its central region, before exiting into Suruga Bay in the Philippine Sea. History The Ōi River is mentioned in Nara period records as forming the border between Tōtōmi and Suruga Provinces. However, due to shifting of the course of the river over the centuries, by the late Muromachi period, this was not always the case. During the Edo period, the Tōkaidō developed as the major highway linking Edo with Kyoto, and ''daimyō'' from the western domains were forced to travel on a regular basis to Edo to attend to the ''shōgun'' in a system known as ''sankin-kōtai ...
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Fuji River
The is a river in Yamanashi Prefecture, Yamanashi and Shizuoka Prefectures of central Japan. It is long and has a drainage basin, watershed of . With the Mogami River and the Kuma River (Japan), Kuma River, it is regarded as one of the three most rapid flows of Japan. The river arises from Mount Nokogiri (Akaishi), Mount Nokogiri in the Akaishi Mountains in northwest Yamanashi as the , and meets the Fuefuki River at the town of Ichikawamisato, Yamanashi, Ichikawamisato where it changes its name to the Fuji River. It then flows around the west foot of Mount Fuji and into Suruga Bay at its mouth in the city of Fuji, Shizuoka, Fuji. The banks of the Fuji River was the location of the Battle of Fujikawa in 1180, one of the most important early battles of the Genpei War. The Sengoku period warlord Takeda Shingen built extensive dikes along the Kamanashi portion of the river, which allowed water to flood buffer zones to control damage. These dikes still exist, and are called the . Flo ...
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Dams In Shizuoka 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 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. Ancient dams were built in Mesopotamia and the Middle East for water control. The earliest known dam is the Jawa Dam in Jordan, dating to 3,000 BC. Egyptians also built dam ...
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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. 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. Stability of the dam primarily arises from the range of normal force angles viably generated by the foundation. Also, the stiff nature of a gravity dam structure endures differential foundation settlement poorly, as it can crack the dam structure. The main advantage to gravity dams over embankments is the scour-resistance of concrete, which protects against damage from minor over-topping flows. Unexpected large over-topping flows are still a problem, as they can scour dam foundations. A disadvantage of gravi ...
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Shin-Shizuoka Station
270px, former station building is a railway station in Aoi-ku, Shizuoka, Shizuoka Prefecture, Japan, operated by the private railway company, Shizuoka Railway (Shizutetsu). It is located within the Shin-Shizuoka Cenova shopping complex. Lines Shin-Shizuoka Station is a terminal station of the Shizuoka–Shimizu Line and is 11.0 kilometers from the opposing terminus of the line at Shin-Shimizu Station. Station layout The station has two island platforms serving three tracks. The station building has automated ticket machines, and automated turnstiles, which accept the LuLuCa smart card ticketing system as well as the PiTaPa and ICOCA IC cards. The station is staffed. History Shin-Shizuoka Station was opened on December 9, 1908 as . It was renamed "Shin-Shizuoka" on October 1, 1954. Shizuoka's city tram system was discontinued in September 1962, and a large bus terminal was established at Shin-Shizuoka Station on May 10, 1966. The Shin-Shizuoka Center department store above th ...
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Shizuoka Station
is a railway station in Shizuoka, Shizuoka Prefecture, Japan, operated by the Central Japan Railway Company (JR Central). Brief Description Shizuoka Station is served by the Tōkaidō Shinkansen and Tōkaidō Main Line, and is 180.2 rail km from Tokyo. Shizuoka Station is the biggest station in Shizuoka prefecture that 60 thousand people use this station per a day. All trains including the sleeper limited express Sunrise Seto and Sunrise Izumo stop here, and it is the starting and ending point of the limited express Fujikawa. Station layout Shizuoka Station has four platforms serving six tracks. Two island platforms with Tracks 1–4 serve the Tōkaidō Main Line trains, and long distance night trains. These platforms are connected with the station concourse via an underpass and are also connected at the same level to the Tōkaidō Shinkansen platforms. The Shinkansen station consists of two opposing side platforms serving two tracks, with two central tracks for non-stop ...
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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. 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. Stability of the dam primarily arises from the range of normal force angles viably generated by the foundation. Also, the stiff nature of a gravity dam structure endures differential foundation settlement poorly, as it can crack the dam structure. The main advantage to gravity dams over embankments is the scour-resistance of concrete, which protects against damage from minor over-topping flows. Unexpected large over-topping flows are still a problem, as they can scour dam foundations. A disadvantage of gra ...
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Concrete
Concrete is a composite material composed of aggregate bound together with a fluid cement that cures to a solid over time. It is the second-most-used substance (after water), the most–widely used building material, and the most-manufactured material in the world. When aggregate is mixed with dry Portland cement and water, the mixture forms a fluid slurry that can be poured and molded into shape. The cement reacts with the water through a process called hydration, which hardens it after several hours to form a solid matrix that binds the materials together into a durable stone-like material with various uses. This time allows concrete to not only be cast in forms, but also to have a variety of tooled processes performed. The hydration process is exothermic, which means that ambient temperature plays a significant role in how long it takes concrete to set. Often, additives (such as pozzolans or superplasticizers) are included in the mixture to improve the physical prop ...
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Ōigawa Railway Ikawa Line
The is a railway line of the Ōigawa Railway. It runs from Senzu Station in Kawanehon, Shizuoka, the end station of the Ōigawa Railway Ōigawa Main Line, Ōigawa Main Line, and terminates at Ikawa Station in Aoi-ku, Shizuoka. The line has 61 tunnels and 51 bridges along its 25.5 kilometer length and includes the only rack railway, rack-and-pinion railway section currently operating in Japan. In September 2022, the Ōigawa Main Line suffered substantial damage from Tropical Storm Talas (2022), Tropical Storm Talas. Rail services between Kawaneonsen-Sasamado Station, Kawane-Onsen Sasamado and Senzu Station were suspended until further notice. Steam locomotives were changed to only operate between Shin-Kanaya and Kawane-Onsen Sasamado. Ōigawa Railway advises customers intending to travel beyond Ieyama Station to the Ikawa Line, towards Senzu and the Sumata Gorge area, to transfer to Kawanehon, Kawanehon Town's community buses at Ieyama Station, which provide connections to S ...
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World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ...
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Joint Venture
A joint venture (JV) is a business entity created by two or more parties, generally characterized by shared ownership, shared returns and risks, and shared governance. Companies typically pursue joint ventures for one of four reasons: to access a new market, particularly emerging market; to gain scale efficiencies by combining assets and operations; to share risk for major investments or projects; or to access skills and capabilities.' Most joint ventures are incorporated, although some, as in the oil and gas industry, are "unincorporated" joint ventures that mimic a corporate entity. With individuals, when two or more persons come together to form a temporary partnership for the purpose of carrying out a particular project, such partnership can also be called a joint venture where the parties are "''co-venturers''". A joint venture can take the form of a business. It can also take the form of a project or asset JV, created for the purpose of pursuing one specific project, ...
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Shizuoka Prefecture
is a Prefectures of Japan, prefecture of Japan located in the Chūbu region of Honshu. Shizuoka Prefecture has a population of 3,555,818 and has a geographic area of . Shizuoka Prefecture borders Kanagawa Prefecture to the east, Yamanashi Prefecture to the northeast, Nagano Prefecture to the north, and Aichi Prefecture to the west. Shizuoka (city), Shizuoka is the capital and Hamamatsu is the largest city in Shizuoka Prefecture, with other major cities including Fuji, Shizuoka, Fuji, Numazu, and Iwata, Shizuoka, Iwata. Shizuoka Prefecture is located on Japan's Pacific Ocean coast and features Suruga Bay formed by the Izu Peninsula, and Lake Hamana which is considered to be one of Japan's largest lakes. Mount Fuji, the tallest volcano in Japan and cultural icon of the country, is partially located in Shizuoka Prefecture on the border with Yamanashi Prefecture. Shizuoka Prefecture has a significant Motor vehicle, motoring heritage as the founding location of Honda, Suzuki Motor C ...
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