tailieunhanh - Two-dike system along Vietnam coast

To get insight in the costs of a 2-dike system along the coast and to find optimum solutions for flood defence, a simple but comprehensive model is made. Total costs are calculated based on loads and strength of the dikes. | Two-dike system along Vietnam coast Gerrit Jan Schiereck1 and Nguyen Ba Quy2 Abstract To get insight in the costs of a 2-dike system along the coast and to find optimum solutions for flood defence a simple but comprehensive model is made. Total costs are calculated based on loads and strength of the dikes. Keywords two dike system coastal defence coastal zone management sea dike 1. Introduction A two dike system is sometimes mentioned as a good tool to improve the safety against flooding along the Vietnam coast. Little has been done until now to quantify the system and to see if and where there is some optimum in the choice between one or two dikes. To get some idea a simple program has been made to explore the properties of this system. Basically the system consists of two dikes with space in between. The seaward dike is named here dike 1 and the landward dike dike 2. Main question is how to design a dike system such that maximum protection of the area behind the system is reached against minimal costs. Different approaches are thinkable like there is only one dike with an amount of overtopping which is acceptable for the hinterland to be protected. dike 1 should be just strong enough to survive a typhoon and high enough to reduce the waves for dike 2 which is somewhat higher to withstand the water level in between the two dikes and which gives the same amount of overtopping as in the first case. the area between the dikes is large enough to store all the overtopping water of dike 1 during a typhoon dike 2 is just high enough to withstand that water level which depends on the size of the area in between and has again the same overtopping to the hinterland. With all variables involved it is already so complicated that a structured approach is necessary to overview all possible combinations and to find a minimum in total costs. Completeness is here more important than accuracy or scientific value therefore a program has been made which is simple but in which .

• Môi trường
• Two dike system
• Vietnam coast
• Two dike systems
• Coastal defence
• Coastal zone management
• Sea dike
• Zone management
• Management and paddy
• Integrated blast disease management
• Paddy in hill zone
• Paddy in hill zone of Karnataka
• Management treatments
• Integrated Coastal Zone Management
• Pattern and Perspectives
• Integrated management
• Sustanaibale development
• Coastal zone
• Pattern Vietnam
• Integrated coastal zone management in Vietnam
• Emerging problems
• Legal status for ICZM
• Organization of ICZM implementation
• Maritime safety
• Maritime security administration
• An toàn hàng hải
• Quản lý an ninh hàng hải
• Poultry manure
• Integrated nutrient management
• Paddy at coastal zone
• Coastal zone of Karnataka
• Significantly higher grain
• Weed control
• Impact of various tillage
• Weed management options on wheat productivity
• Wheat productivity under new alluvial zone
• New alluvial zone
• Economic zone
• Green economic zone
• Green growth
• Environmental management system
• Eco industrial zones
• Economic zone’s current situation
• Grain yield
• Weed management
• Net return
• New alluvial zone of West Bengal
• Weed management in maize system
• Coastal plain zone
• Yield improvement
• Cucumber through integrated nutrient management practices
• Randomised block design
• Integrated nutrient management on growth
• Yield of Mustard
• Mustard (Brassica juncea L )
• Irrigated condition
• Gangetic plain zone of India
• Amorphophallus paeoniifolius argentea
• High rainfall sub humid zone
• Climatic effect
• Weed management practices
• Elephant foot yam
• Paddy (Oryza sativa L
• Hill zone of Karnataka
• Mopho physiological parameters on paddy
• Growth parameters of paddy (Oryza sativa L
• Central dry zone
• Growth and yield parameters
• Pomegranate cv Bhagwa
• Randomized block design
• Yield and finger millet
• Eastern dry zone
• Long term effect
• Growth and yield of finger millet
• Basal diameter
• Suitable nutrient management
• Dual purpose flax (Linum usitatissimum L )
• Dual purpose flax crop
• IPM module
• Yellow vein mosaic virus
• Mid central table
• Mid central table land zone
• Management of yellow vein mosaic virus
• Marine environment
• Marine environmental studies
• Lecture Marine environmental studies
• Môi trường biển
• Nghiên cứu môi trường biển
• Bio agents
• Sclerotium rolfsii
• West bengal
• Sunflower caused
• In vitro assay
• Nghi Son economic zone
• Joint venture enterprises
• Manufacturing sector
• Joint venture enterprises in manufacturing sector
• Economic management skills
• BMC Pulmonary Medicine
• TB management time
• TB infectious pool
• East Gojjam zone
• Multivariable logistic regression analysis
• Water resource
• Water balance
• Water resources demand
• Central Narmada valley zone
• Various sectors like crop water management
• Integrated approach
• Chilli leaf curl virus
• Chilli leaf curl virus disease
• Coastal zone of odisha
• Leaf curl
• Integrated disease management
• On farm trial
• Kymore plateau
• Different management modules
• Leaf curl disease of chilli
• Web blight
• Disease incidence
• Kymore plateu
• Integrated management of web blight