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Which failure occurs when the net horizontal force above any plane in the dam or at the base of the dam exceeds the frictional resistance developed at that level?
  • a)
    Overturning
  • b)
    Crushing
  • c)
    Sliding
  • d)
    BY development of tension
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Which failure occurs when the net horizontal force above any plane in ...

Sliding failure in dams:

Sliding failure in dams occurs when the net horizontal force above any plane in the dam or at the base of the dam exceeds the frictional resistance developed at that level.

Explanation:

Causes:
- Sliding failure is typically caused by excessive horizontal forces acting on the dam structure, such as water pressure or seismic forces.
- Poor foundation conditions or inadequate design considerations can also contribute to sliding failure in dams.

Identification:
- Engineers can identify potential sliding failure by analyzing the forces acting on the dam and comparing them to the available frictional resistance.
- Monitoring devices can also be installed to detect any movement or displacement that may indicate an impending sliding failure.

Consequences:
- Sliding failure in dams can lead to catastrophic consequences, such as dam collapse and flooding downstream.
- It can pose a significant risk to life, property, and the environment.

Prevention:
- Proper design considerations, including ensuring adequate frictional resistance at critical planes in the dam, can help prevent sliding failure.
- Regular inspections, maintenance, and monitoring of dam structures are essential to detect any potential issues early on and take corrective actions.

In conclusion, sliding failure in dams occurs when the horizontal forces exceed the frictional resistance at critical levels, highlighting the importance of proper design, monitoring, and maintenance practices in ensuring the stability and safety of dam structures.
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Community Answer
Which failure occurs when the net horizontal force above any plane in ...
Sliding should always be fully resisted. At any horizontal section of the dam, the factor of safety against sliding is –
FOS = u Ph / Pv where u = coefficient of friction, Ph = Sum of horizontal forces causing sliding and Pv = Algebraic sum of vertical forces.
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Which failure occurs when the net horizontal force above any plane in the dam or at the base of the dam exceeds the frictional resistance developed at that level?a)Overturningb)Crushingc)Slidingd)BY development of tensionCorrect answer is option 'C'. Can you explain this answer?
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