Factors Affecting Design of a Barrage
Factors affecting Design of a Barrage are as follows:
- Estimation of Design Flood
- Hydraulic Units
- Width of Barrage
- Tail Water Rating Curve
- Crest Levels
- Discharges through a Barrage (Free Flow Conditions)
- Discharge through a Barrage (Submerged Flow Conditions)
- Fane's Curve
- Gibson's Curve
The design of a barrage, which is a type of hydraulic structure built across a river or other watercourse to regulate the flow of water and create a reservoir, is influenced by several factors. Some of the key factors that affect the design of a barrage include:
The design of a barrage is influenced by the flow characteristics of the river or watercourse it is built across. This includes factors such as the volume and velocity of the water, as well as the frequency and duration of floods.
The topography of the area surrounding the barrage can also affect its design, as this can impact the height, length, and alignment of the structure as well as other components of a barrage.
The geological properties of the site where the barrage will be built can also play a role in its design, as this can impact factors such as foundation design, seepage control, and stability.
Sedimentation, or the accumulation of sediment in the river or watercourse, can also affect the design of a barrage. This includes considerations such as the rate of sedimentation, the type and size of sediment, and the impact of sediment on the structure's performance over time.
The design of a barrage also needs to consider the potential impact of the structure on the local environment. This includes factors such as the impact on wildlife habitats, water quality, and downstream water availability.
Finally, the design of a barrage is often influenced by economic considerations, such as the cost of construction, the potential benefits of water storage or flood control, and the impact of the structure on the local economy.