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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 under water
  • 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?
Most Upvoted Answer
When an alluvial channel attains its regime it will have side slopesa)...
Explanation:

Regime of an Alluvial Channel:
- When an alluvial channel attains its regime, it means that the channel has reached a state of equilibrium where the flow and sediment transport are balanced over time.

Side Slopes of a Regime Channel:
- The side slopes of a regime alluvial channel are typically stable and have a specific ratio of horizontal to vertical distance.

Side Slopes Value:
- The side slopes of a regime alluvial channel are usually represented as 0.5 horizontal to 1 vertical (0.5H:1V).
- This means that for every 1 unit of vertical distance, the channel will have 0.5 units of horizontal distance.

Reasoning:
- The side slopes of 0.5H:1V are commonly observed in natural channels due to the balance between erosion and sediment deposition.
- These side slopes provide stability to the channel banks and help prevent erosion and slope failures.

Conclusion:
- Therefore, when an alluvial channel attains its regime, it will have side slopes of value 0.5 horizontal to 1 vertical (0.5H:1V) to maintain stability and equilibrium in the channel.
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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 under waterc)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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