نتایج جستجو برای: flood control

تعداد نتایج: 1349885  

Journal: :international journal of environmental research 2015
p. asiaban e. amiri tokaldany m. tahmasebi nasab

detention rockfill dams are accounted as economically efficient structures for flood control, river bed and banks protection, flow diversion, etc. as the hydraulic behavior of these structures, when are used for flood control, is affected by the depth of water in their porous media, there are interests to predict water surface profile through the body of these structures. in this research, we d...

1999
Nazrul Islam

This paper offers a critique of the cordon approach to flood control that Bangladesh has been pursuing for several decades now. It shows how this approach fails to solve the flood problem, deprives the flood plains from benefits of regular river-inundation, creates a risky situation for the inhabitants inside cordons, brings in new problems of drainage and sanitation, and leads to huge waste of...

Flood spreading is among preventing method from damage of deluge, especially perishing of water and soil in latrine basins of arid and semiarid regions. Accumulation of sediments on the flood spreads regions lead to changes in soil fertility, revival and support of plant covering and controlling of desertification and change in physicochemical properties of soil in these regions. In order to me...

2010
P. Y. Julien C. K. Chang

The 2003 flood of the Muda River reached 1,340 m3 /s at Ladang Victoria and adversely impacted 45,000 people in Malaysia. A flood control remediation plan proposed a levee height based on a 50-year discharge of 1 ,815 m3 /s obtained from hydrologic models. This design discharge falls outside the 95% confidence intervals of the flood frequency analysis based on field measurements. Instream sand ...

2016
Peiyu Ren Yancang Li Huiping Song Lingjie Zhang

Mountain torrent disaster warning system is a significant non-engineering flood prevention measure for achieving the goals of flood prevention and disaster reduction in the related small rivers. After analyzing the design principle and objective of the system, we proposed a mountain torrent disaster warning system based on WEB GIS technology and the distributed hydrological model (DHM) of the r...

Ali Hoseinian Dariush Karami Chemeh Elaeh Hoseinian Seyed Mahmoud Kashefipour,

Constructing of control structures, like dams, change temporal and spatial unequal distribution of water ,and also play an effective role in reduce or eliminate of damage that caused by floods. So reservoir dam’s effect on floods discharges reduction must be determined. In this study the rain Information and flood hydrographs were used to check the flood routing for previous period of Maroon da...

Journal: :Environmental Modelling and Software 2004
Chuntian Cheng Kwok-Wing Chau

Chun-Tian Cheng*, K.W.Chau Department of Civil Engineering, Dalian University of Technology, Dalian, 116024, P.R. China Department of Civil and Structural Engineering, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong Abstract: Flooding disaster is one of the most damaging natural disasters in China, with annual average losses costing more than 200 billion yuan in recent years. Aft...

ژورنال: علوم آب و خاک 2013
اعظم حسین شاهی, , علیرضا واعظی, , پرویز عبدی نژاد, ,

Flood spreading is one of the suitable methods to control the floods and conservation of soil and water in arid and semi-arid regions. Since soil properties may be influenced by the flood spreading, this study was carried out to investigate the effect of the flood spreading on physicochemical soil properties in Garacharyan plain located in North West of Zanjan in 2009. Three flooded areas and o...

Journal: :Canadian Water Resources Journal 1976

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