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When an alluvial channel attains its regime it will have side slopes
- a)of value equal to the angle of repose of the alluvium
- b)of value equal to the angle of repose of the alluvium underwater
- c)of value 0.5 vertical: 1 horizontal
- d)of value 0.5 horizontal: 1 vertical
Correct answer is option 'D'. Can you explain this answer?
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When an alluvial channel attains its regime it will have side slopesa)...
Side Slopes of an Alluvial Channel
When an alluvial channel attains its regime, it means that the sediment transport has reached a state of balance with the flow. At this point, the channel will have a specific geometry that depends on the sediment size and flow characteristics.
Side Slopes Value
The side slopes of an alluvial channel are the angle between the bank and the horizontal plane. It is an important parameter that affects the stability and capacity of the channel.
The correct answer is option 'D', which states that the side slopes of an alluvial channel in regime will have a value of 0.5 horizontal:1 vertical.
Explanation
The side slopes of an alluvial channel depend on several factors, such as the sediment size, flow velocity, and channel width. However, empirical studies have shown that the angle of side slopes tends to follow a specific pattern.
The value of 0.5 horizontal:1 vertical means that for every 1 unit of vertical rise, the channel will have a horizontal extension of 0.5 units. This corresponds to a side slope angle of approximately 26.5 degrees.
This value is a result of the balance between the gravitational force acting on the sediment and the hydrodynamic forces of the flow. The angle of repose of the sediment also plays a role in determining the slope angle, but it is not the only factor.
Conclusion
In summary, the side slopes of an alluvial channel in regime will have a value of 0.5 horizontal:1 vertical, which corresponds to an angle of approximately 26.5 degrees. This value results from the balance between the sediment and flow forces and is an important parameter for channel design and stability.
When an alluvial channel attains its regime, it means that the sediment transport has reached a state of balance with the flow. At this point, the channel will have a specific geometry that depends on the sediment size and flow characteristics.
Side Slopes Value
The side slopes of an alluvial channel are the angle between the bank and the horizontal plane. It is an important parameter that affects the stability and capacity of the channel.
The correct answer is option 'D', which states that the side slopes of an alluvial channel in regime will have a value of 0.5 horizontal:1 vertical.
Explanation
The side slopes of an alluvial channel depend on several factors, such as the sediment size, flow velocity, and channel width. However, empirical studies have shown that the angle of side slopes tends to follow a specific pattern.
The value of 0.5 horizontal:1 vertical means that for every 1 unit of vertical rise, the channel will have a horizontal extension of 0.5 units. This corresponds to a side slope angle of approximately 26.5 degrees.
This value is a result of the balance between the gravitational force acting on the sediment and the hydrodynamic forces of the flow. The angle of repose of the sediment also plays a role in determining the slope angle, but it is not the only factor.
Conclusion
In summary, the side slopes of an alluvial channel in regime will have a value of 0.5 horizontal:1 vertical, which corresponds to an angle of approximately 26.5 degrees. This value results from the balance between the sediment and flow forces and is an important parameter for channel design and stability.
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When an alluvial channel attains its regime it will have side slopesa)of value equal to the angle of repose of the alluviumb)of value equal to the angle of repose of the alluvium underwaterc)of value 0.5 vertical: 1 horizontald)of value 0.5 horizontal:1 verticalCorrect answer is option 'D'. Can you explain this answer?
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