نتایج جستجو برای: sediment bypass tunnel
تعداد نتایج: 122364 فیلتر نتایج به سال:
Typhoon Aere in 2004 induced severe sedimentation and loss of storage capacity the Shihmen Reservoir northern Taiwan. The resulting dramatic increase turbidity water seriously affected supply. To effectively maintain stability supply reservoir’s capacity, government Taiwan began to plan construct a series improvement measures, such as sediment flushing tunnel, JhongJhuang Bank-Side Reservoir, A...
Reservoirs are a crucial part of the human water supply system. The effectiveness and service life reservoir is decided mainly by its storage capacity, as such, preventing capacity loss high interest worldwide. Due to climate change in recent years, precipitation types have changed, heavy rainfall events become more severe frequent. Rainfall causes soil erosion slope lands transports large amou...
Background: The Fontan operation is the definitive operation for palliation of complex congenital heart disease with single –ventricle physiology. The use of the extra cardiac conduit has recently been gaining popularity. The purpose of this study was to compare the outcomes of extra cardiac conduit Fontan procedure (off-pump technique) and that of traditional technique (lateral tunnel techniqu...
To mitigate coastal erosion in the sectors Barra-Vagueira and Figueira da Foz-Leirosa (NW of Portugal), Portuguese authority has promoted discussion on feasibility implementing a sand bypassing system to restore natural littoral sediment transport. This study synthesizes main results proposed solutions for Aveiro Foz tidal inlets. The methodology develop compromised tree phases that included hi...
The classical theory of jokulhlaups used Rothlisberger's earlier theory of ice-channel drainage to describe the development of the Oood hydrograph. This theory has some drawbacks: the mechanism o[ initiation (breaking the seal) is opaque, the l\i[anning roughness coefficient is too large and the hydrographs can reveal a sudden switching from channel opening to channel closure which is not simul...
Wind-shield walls decrease the velocity of wind-drift sand flow in transit. This results in sand accumulating in the wind-shadow zone of both windshield wall and track line, causing severe sand sediment hazard. This study reveals the characteristics of sand accumulation and the laws of wind-blown sand removal in the wind-shadow areas of three different types of windshield walls, utilizing three...
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