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Longtang Dam
The Longtang Dam (龙塘大坝), also known as Longtang Reservoir and Nandu River Dam, is located on the Nandu River at Longtang, Hainan Longtang () is a town in Qiongshan District, Hainan, China. It is located on the west bank of the Nandu River approximately 15 km south of Haikou City, the capital of the province. See also *Longtang Dam - a dam located at the north end of th ..., China. When the water level is low enough this concrete dam serves as a river crossing for vehicles and pedestrians. The dam has a normal water level of 7.7 metres. At 11.5 metres, an alert is issued. When the dam is closed, large metal doors are lowered at each end to prevent access. The dam also has hydro electric stations on both banks. Nandu River Hydro Station The Nandu River Hydro Station consists of a power generation station on the east and west bank, both operational. West Hydro Station The west station's head race is essentially a concrete wall within the river that diverts some wate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longtang, Hainan
Longtang () is a town in Qiongshan District, Hainan, China. It is located on the west bank of the Nandu River approximately 15 km south of Haikou City, the capital of the province. See also *Longtang Dam - a dam located at the north end of the town References Populated places in Hainan {{Hainan-geo-stub ... [...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 concre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nandu River
The Nandu River () is the longest river in Hainan Province, China. Its tributary is the Xinwu River. The river discharges into the Nandu River estuary at Haikou city, and then into Qiongzhou Strait. The river is 314 km long, with a discharge of 6.099 billion cubic metres. It passes the major settlements of Chengmai Zhen in Chengmai County then Dingcheng in Ding'an County. The river then turns north, goes over the Longtang Dam at Longtang, a somewhat smaller town than Chengmai and Ding'an. The Nandu then goes under several bridges, such as the Nandu River Iron Bridge and Qiongzhou Bridge. Once passed the Qiongzhou Bridge, at the southern tip of Xinbu Island, the Nandu flows north along the east side of Xinbu Island and out into the sea. At the southern tip of Xinbu Island, two distributaries branch off. One is the Henggouhe Channel which runs along the west side of Xinbu Island. The other is the smaller Haidian River which flows westward, under the Haikou Century Bridge, and ou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longtang Dam - West Bank Generator Building - 02
A longtang (, Shanghainese: ''longdhang'') is a lane in Shanghai and, by extension, a community centred on a lane or several interconnected lanes. It is sometimes called lilong (); the latter name incorporates the ''-li'' suffix often used in the name of residential developments in the late 19th and early 20th centuries. The Shanghai longdang is loosely equivalent to the hutong of Beijing. As with the term hutong, the Shanghai longdang can either refers to the lanes that the houses face onto, or a group of houses connected by the lane. A large variety of housing styles are called "''lilong'' residences" in Shanghai. Of these, the best known and most characteristic is the ''shikumen'' (), two- or three-storey terrace houses with a wall and large gate in front of each dwelling. Other types include the more modern "new style ''lilong''" (); the simplified "Cantonese style ''lilong''" (); the high-end villa-like "garden ''lilong''" (); and the higher density "apartment ''lilong''" ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mill Race
A mill race, millrace or millrun, mill lade (Scotland) or mill leat (Southwest England) is the current of water that turns a water wheel, or the channel ( sluice) conducting water to or from a water wheel. Compared with the broad waters of a mill pond, the narrow current is swift and powerful. The race leading to the water wheel on a wide stream or mill pond is called the head race (or headraceDictionary.com, word definition), and the race leading away from the wheel is called the tail raceChamber's Twentieth Century Dictionary, 1968, p=674 (or tailrace). A mill race has many geographically specific names, such as ''leat, lade, flume, goit, penstock''. These words all have more precise definitions and meanings will differ elsewhere. The original undershot waterwheel, described by Vitruvius, was a 'run of the river wheel' placed so a fast flowing stream would press against and turn the bottom of a bucketed wheel. In the first meaning of the term, the millrace was the stream; in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Longtang Dam - East Bank Generator Building - 05
A longtang (, Shanghainese: ''longdhang'') is a lane in Shanghai and, by extension, a community centred on a lane or several interconnected lanes. It is sometimes called lilong (); the latter name incorporates the ''-li'' suffix often used in the name of residential developments in the late 19th and early 20th centuries. The Shanghai longdang is loosely equivalent to the hutong of Beijing. As with the term hutong, the Shanghai longdang can either refers to the lanes that the houses face onto, or a group of houses connected by the lane. A large variety of housing styles are called "''lilong'' residences" in Shanghai. Of these, the best known and most characteristic is the ''shikumen'' (), two- or three-storey terrace houses with a wall and large gate in front of each dwelling. Other types include the more modern "new style ''lilong''" (); the simplified "Cantonese style ''lilong''" (); the high-end villa-like "garden ''lilong''" (); and the higher density "apartment ''lilong''" ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haikou Nandu River Water Diversion Project
Haikou Nandu River Water Diversion Project () is a project to divert water from the Nandu River to parts of Haikou Prefecture, in particular, an agricultural area west of Haikou City where lychee are grown. Tunnel construction The project is ongoing in 2017 and includes a pumping station on the east bank of the Nandu River just south of the Longtang Dam The Longtang Dam (龙塘大坝), also known as Longtang Reservoir and Nandu River Dam, is located on the Nandu River at Longtang, Hainan Longtang () is a town in Qiongshan District, Hainan, China. It is located on the west bank of the Nandu River .... Tunnels are being bored from the west side of the Nandu westward to the areas where the water is needed. This involves underground blasting and the creation of numerous pits along the route for equipment access. References External links * {{coord missing, Hainan Buildings and structures in Haikou Aqueducts in China Irrigation in China ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Video Of Longtang Dam After Tropical Storm Dianmu
Video is an electronic medium for the recording, copying, playback, broadcasting, and display of moving visual media. Video was first developed for mechanical television systems, which were quickly replaced by cathode-ray tube (CRT) systems which, in turn, were replaced by flat panel displays of several types. Video systems vary in display resolution, aspect ratio, refresh rate, color capabilities and other qualities. Analog and digital variants exist and can be carried on a variety of media, including radio broadcast, magnetic tape, optical discs, computer files, and network streaming. History Analog video Video technology was first developed for mechanical television systems, which were quickly replaced by cathode-ray tube (CRT) television systems, but several new technologies for video display devices have since been invented. Video was originally exclusively a live technology. Charles Ginsburg led an Ampex research team developing one of the first practical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2016 Pacific Typhoon Season
The 2016 Pacific typhoon season is considered to have been the fourth-latest start for a Pacific typhoon season since reliable records began. It was an average season, with a total of 26 named storms, 13 typhoons, and six super typhoons. The season ran throughout 2016, though typically most tropical cyclones develop between May and October. The season's first named storm, Nepartak, developed on July 3, while the season's last named storm, Nock-ten, dissipated on December 28. The development of Nepartak made the second-latest time within a season for the first named storm to develop and ended a 199-day period (from December 17, 2015 – July 3, 2016) during which no named storm was active in the basin. Tropical Storm Mirinae reached peak intensity while making landfall over the Red River Delta, causing very severe damage in Northern Vietnam. By the end of August, three storms had hit the Japanese island of Hokkaidō, the most since 1951. In September, Typhoon Meranti reached peak ... [...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] |
