A straight-crested concrete gravity structure, the Three Gorges Dam is 2,335 metres (7,660 feet) long with a maximum height of 185 metres (607 feet).It incorporates 28 million cubic metres (37 million cubic yards) of concrete and 463,000 metric tons of steel into its design. Submerging large areas of the Qutang, Wu, and Xiling gorges for some 600 km (375 miles) …
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Most landslides induced by reservoir impoundment and rainfall in the Three Gorges Reservoir area of China are usually characterized by bedding-plane shear zones. This paper presents an experimental study of the interaction between water and shear-zone materials. A series of tests, including wetting-drying cycles and soaking tests, were carried out. The results show that the …
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China Yangtze Three Gorges Project (TGP), as one of the biggest hydropower-complex projects in the world, serves as the key project for improvement and development of Yangtze River. …
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First, by statistical analysis and mechanical analysis on over 2000 landslides in the Three Gorges Reservoir area, especially the landslides larger than 1million m 3, we classified the landslides into clayey loess landslide, debris landslide, and rockslide in terms of material composition and geological structure. We also analyzed the ...
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The Three Gorges Reservoir (TGR) ... Details of each site are shown in supplementary materials Table S1. 2.2. Sample collection. The sampling sites were located near the center of the main stream. Water and sediment samples were collected in August 2016. ... W1 was collected at a countryside site near a sand plant, ...
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In order to investigate the process of bed erosion and deposition in the downstream reaches below the Three Gorges Dam (TGD), the natural flow and sediment regime entering …
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An example of the amount of concrete that can be used on a large-scale project is the Three Gorges Dam of China, which required 26.43 million cubic meters of concrete (Kennedy). …
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Problematic sedimentation in the Three Gorges Reservoir (TGR) is related to the reservoir lifetime, hydropower generation, riverbed erosion, and sustainable development of …
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3.2. The Yangtze Gravel. Downstream of the Three Gorges, typical sections of the Yangtze Gravel are exposed along the trunk Yangtze River at Wuhan, Jiujiang, Anqing, Tongling and Nanjing (Yang et al., 1995; Fig. 1 B).The Yangtze Gravel consists predominantly of medium to coarse sand and rounded to sub-rounded, well-sorted, pebbles and imbricated cobbles …
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2.1 Study site. This research was conducted in the eastern Sichuan parallel ridge and valley area (Chongqing region; Fig. 1 a, b) in the central area of the Three Gorges Reservoir region (105°45'37.84"E, 30°45'37.84" N; 186–274 m.a.s.l.; slope 15–18%)(Fig. 2 A, B, E). The dominant soil in this area is purplish soil that basically maintains the physical and chemical …
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Today, on International Day of Combating Sand and Dust Storms, let's talk about how small actions can make a big difference in preventing dust storms and…
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Pore features and seepage characteristics of mixed granular materials are of great significance in many subjects, including engineering, for instance geotechnical engineering, petroleum extraction, hydrogeology, environmental science and hydraulic engineering. In this paper, two types of mathematical models are proposed that consider different packing …
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In this paper, model tests on the slope stability of the Three Gorges Reservoir (TGR) area were conducted with S1 sand under three different rainfall and FRWL combinations. Additionally, numerical simulations on the model tests, in which an unsaturated soil constitutive model was selected to describe the mechanical–hydraulic behaviour of ...
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"One core" refers to the northeastern part of the Three Gorges Reservoir Area, including portions of Wushan County, Wuxi County, and Badong County. In this area, there is a dense distribution of ecological source areas, which serve as important nodes where material, energy, information, and other ecological flows converge.
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The Three Gorges Dam was also built for power generation. Hydroelectric technology in the dam has a capacity of 22,500 megawatts of energy and is the most productive hydroelectric dam in the world ("Three Gorges Dam", …
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Keeping it cool at Three Gorges. Dai Huichao explains how the size and surrounding environment of the Three Gorges dam required special concrete pouring and …
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The Three Gorges Dam (TGD), located in the upper valley of the Yangtze River, is the most comprehensive water conservancy and hydropower project worldwide, and was designed for controlling floods, producing hydropower and water supply, and facilitating navigation (Wang, 2002, Fu et al., 2010). Problematic sedimentation in the corresponding ...
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In this study, we use two sedimentary provenance proxies - Pb isotopic compositions of detrital K-feldspar and zircon U Pb ages of detrital zircons - to investigate the …
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The deformation characteristics of soil obtained from landslides at the Three Gorges Dam Reservoir have been examined. Due to the annual fluctuation in the water level of the reservoir, landslides ...
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The Three Gorges Reservoir Region contains 26 counties adjacent to the reservoir and the intensity of human activity ... (clay: <4 μm, silt: 4–63 μm and sand: >63 μm) were measured by a Mastersizer-2000 Laser ... sediments of the Three Gorges Reservoir (TGR) with other materials. Note: FL (Fuling), ZX (Zhongxian), WZ (Wanzhou), FJ (Fengjie
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The Three Gorges region of China, located in the upper reaches of the Yangtze River along its course from Yichang to Chongqing, encompasses three successive gorges: Qutang Gorge, Wu Gorge, and Xiling Gorge (Fig. 1).As a result of the construction of the Three Gorges Dam at Yichang, a reservoir has been created with a total length of 5425.93 km, …
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Ting XIAO | Cited by 1,336 | of China Three Gorges University, Yichang (CTGU) | Read 76 publications | Contact Ting XIAO
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This paper focuses on the streamwise migration of the erosion center along the ∼400‐km‐long Yichang to Chenglingji reach (YCR) downstream of the Three Gorges Dam …
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Three Gorges Dam has impacted the pattern of grain-size in the Yangtze significantly. There exists an abrupt sand–mud transition in the channel of the Yangtze Estuary. The Yangtze mud shows an exponential fining along the sediment dispersal in the sea. The mud margin off the Yangtze mouth has retreated due to erosion in recent years.
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In this study, both macro-performance and microstructural analyses revealed that the application of moderate-heat cement and FA resulted in a dense and homogenous …
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Plant material. Three healthy and asymptomatic D. chinense plants were randomly collected from different locations on an island in the Banan district (N29º42'45.63", E106º60'69.43") of Chongqing of China in the Three Gorges Reservoir area in October 2014. All plant materials were immediately sent to the laboratory and stored in a refrigerator ...
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The materials excavated from the foundation pit were fully utilised and, in addition, a new technology was developed that combined sand-making (using a Barmac 9000) and a mixing mill. In 2000, the company claimed records for concrete poured on a yearly (5.48Mm3), monthly (553,500m3) and daily (22,000m3) basis.
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Three Gorges Materials Tendering Management Co., Ltd. has a total of 39 patents . Login to view all basic info. Data Snapshot. 39. Patent. High Related Markets. Mentioned companies in the market reports of major market categories and sectors by Three Gorges Materials Tendering Management Co., Ltd.
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Upstream damming greatly altered the flow and sediment regime entering downstream reaches in the Middle Yangtze River, and the bed material in a sand–gravel bed reach coarsened continuously, which had a significant influence on the sediment transport and bed evolution. In order to study the riverbed armoring, the sediment exchange process (SEP) …
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Three Gorges came into being because of the terrain rising and the strong downward water erosion of this area. Along the banks, fantastic steep peaks and cliffs face each other, generally standing 700 - 800 meters (2,300 – 2,600 feet) high above the water. The narrowest part is less than 100 meters (330 ft).
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