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Hakusui Dam
is a concrete gravity dam on the upper reaches of the Ōno River in Taketa, Ōita, Taketa, Ōita Prefecture, Japan. It was constructed in 1938, and is 86 m wide and 14 m tall.Agency for cultural affairs accessed 26 September 2007 It appearance has gained it the designation of Important Cultural Properties of Japan. References Dams in Ōita Prefecture Gravity dams Dams completed in 1938 Important Cultural Properties of Japan {{Kyushu-dam-stub ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...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. 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ōno River
The is a river that originates in Ōita Prefecture, Japan. After running through the southern and central portions of Ōita Prefecture, it runs through the eastern part of Kumamoto Prefecture and the northern part of Miyazaki Prefecture. The Hakusui Dam, constructed in 1938, is one of twelve dams located on the river. The river includes Harajiri Falls which is located in Bungo-Ōno, Ōita Prefecture is a prefecture of Japan located on the island of Kyūshū. Ōita Prefecture has a population of 1,081,646 (1 February 2025) and has a geographic area of 6,340 km2 (2,448 sq mi). Ōita Prefecture borders Fukuoka Prefecture to the northwest, K .... References Rivers of Kumamoto Prefecture Rivers of Ōita Prefecture Rivers of Miyazaki Prefecture Rivers of Japan {{Japan-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taketa, Ōita
270px, Taketa City Hall is a city located in Ōita Prefecture, Japan. , the city had an estimated population of 19,456 in 9838 households, and a population density of 41 persons per km2. The total area of the city is . Geography Taketa is located in the southwestern part of Ōita Prefecture. The city center is approximately 55 km southwest of the prefectural capital at Ōita City and approximately 73 km east-northeast of Kumamoto City. The city is surrounded by mountains reaching heights of approximately 1 km, such as the Kujū Mountain Range, Mount Aso, Mount Sobo, and Mt. Takayama, and natural beauty spots include Takeda Springs and Kujū Plateau. Together with Bungo-Ōno City, which adjoins it to the east, it is known as the "Hōhi district" (or "Oku-Bungo"). Although Taketa borders Miyazaki Prefecture to the south, there is no direct road connection to Miyazaki from Taketa. Neighboring municipalities Kumamoto Prefecture * Aso * Minamioguni * Takamori * Ubuyama Miyazaki Pre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ōita Prefecture
is a prefecture of Japan located on the island of Kyūshū. Ōita Prefecture has a population of 1,081,646 (1 February 2025) and has a geographic area of 6,340 km2 (2,448 sq mi). Ōita Prefecture borders Fukuoka Prefecture to the northwest, Kumamoto Prefecture to the southwest, and Miyazaki Prefecture to the south. Ōita is the capital and largest city of Ōita Prefecture, with other major cities including Beppu, Nakatsu, and Saiki. Ōita Prefecture is located in the northeast of Kyūshū on the Bungo Channel, connecting the Pacific Ocean and Seto Inland Sea, across from Ehime Prefecture on the island of Shikoku. Ōita Prefecture is famous for its hot springs and is a popular tourist destination in Japan for its ''onsen'' and '' ryokan'', particularly in and around the city of Beppu. It has more ''onsen'' than any other Japanese prefecture. History Around the 6th century, Kyushu consisted of four regions: Tsukushi Province, Hi Province, Kumaso Province and Toyo P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Important Cultural Properties Of Japan
An The term is often shortened into just is an item officially classified as Tangible Cultural Property (Japan), Tangible Cultural Property by the Government of Japan, Japanese government's Agency for Cultural Affairs (Ministry of Education, Culture, Sports, Science and Technology) and judged to be of particular importance to the history, arts, and culture of the Japanese people. Classification of Cultural Properties To protect the cultural heritage of Japan, the Law for the Protection of Cultural Properties was created as a under which important items are appropriated as Cultural Properties,In this article, capitals indicate an official designation as opposed to a simple, unofficial definition, e.g "Cultural Properties" as opposed to "cultural properties". thus imposing restrictions to their alteration, repair and export. Besides the "designation system", there exists a , which guarantees a lower level of protection and support to Cultural Properties of Japan, Registered Cultur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams In Ōita 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 dams, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
