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Lower Baoquan Dam
The Lower Baoquan Dam was completed in 1994 on the Yuhe River, a tributary of the Yalu River, and is a masonry gravity type. It was raised , from to , to support the Baoquan Pumped Storage Power Station The Baoquan Pumped Storage Power Station () is a pumped-storage hydroelectric power station located northeast of Jiaozuo in Henan Province, China. It was constructed between June 2004 and December 2011 and has a installed capacity. The power s .... Notes Dams completed in 1994 Dams in China Masonry dams Gravity dams {{Asia-dam-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yalu River
The Yalu River, known by Koreans as the Amrok River or Amnok River, is a river on the border between North Korea and China. Together with the Tumen River to its east, and a small portion of Paektu Mountain, the Yalu forms the border between North Korea and China. Its valley became the scene of several military conflicts in the past centuries. Name Two theories are given regarding the origin of the river's name. One theory is that the name derived from ''Yalu ula'' () in the Manchu language. The Manchu word ''yalu'' () means "the boundary between two countries". In Mandarin Chinese, phonetically approximates the original Manchu word, but literally means "duck green", which was said to have been once the color of the river. The other theory is that the river was named after the combination of its two upper branches, which were called "" ( or'' Ap'') and "" ( or ''R''(or ''n'')''ok'')", respectively. Revised Romanization of Korean spelled it (; "Amnok River") and Revised ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baoquan Pumped Storage Power Station
The Baoquan Pumped Storage Power Station () is a pumped-storage hydroelectric power station located northeast of Jiaozuo in Henan Province, China. It was constructed between June 2004 and December 2011 and has a installed capacity. The power station operates by shifting water between an upper and lower reservoir to generate electricity. Upper Baoquan Reservoir The Upper Baoquan Reservoir was formed by excavating a valley above the lower reservoir and constructing a tall concrete-face rock-fill dam. The walls around the reservoir are blanketed with concrete and asphalt. The upper reservoir has a storage capacity of which can be used for power generation. Baoquan Reservoir The lower reservoir was formed by raising the height of the existing Lower Baoquan Dam while the Upper Baoquan Reservoir is located in a valley above the north side of the lower reservoir. During periods of low energy demand, such as at night, water is pumped from Baoquan Reservoir up to the upper reserv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dams Completed In 1994
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] |
Dams In China
Dams and reservoirs in China are numerous and have had a profound effect on the country's development and people. According to the World Commission on Dams in 2000, there were 22,104 dams over the height of operating in China. Of the world's total large dams, China accounts for the most – of them; of which are used for irrigation. Accordingly, the oldest in China still in use belongs to the Dujiangyan Irrigation System which dates back to 256 BC. In 2005, there were over 80,000 reservoirs in the country and over 4,800 dams completed or under construction that stands at or exceed in height. As of 2007, China is also the world's leader in the construction of large dams; followed by Turkey, and Japan in third. The tallest dam in China is the Jinping-I Dam at , an arch dam, which is also the tallest dam in the world. The largest reservoir is created by the Three Gorges Dam, which stores 39.3 billion m3 (31,900,000 acre feet) of water and has a surface area of . Three Gorges is al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Masonry Dams
Masonry is the building of structures from individual units, which are often laid in and bound together by mortar; the term ''masonry'' can also refer to the units themselves. The common materials of masonry construction are bricks, building stone such as marble, granite, and limestone, cast stone, concrete blocks, glass blocks, and adobe. Masonry is generally a highly durable form of construction. However, the materials used, the quality of the mortar and workmanship, and the pattern in which the units are assembled can substantially affect the durability of the overall masonry construction. A person who constructs masonry is called a mason or bricklayer. These are both classified as construction trades. Applications Masonry is commonly used for walls and buildings. Brick and concrete block are the most common types of masonry in use in industrialized nations and may be either load-bearing or non-load-bearing. Concrete blocks, especially those with hollow cores, offer var ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
