The total length of impervious flooring downstream of a hydraulic structure is calculated using Bligh’s Theory __________________?
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Answer: C. Khosla
Explanation
Khosla's theory provides the mathematical methods used to calculate pressure distribution and seepage length. Hydraulic engineers rely on Khosla's independent variable methods to design safe impervious floor lengths. This advanced theory improves upon older empirical rules by solving exact potential flow equations for floors. Water seeping beneath hydraulic structures creates uplift pressures that can cause structural failure by piping. Khosla analyzed flow nets using conformal mapping to determine exact exit gradients and uplift pressures. His method uses standard curves for sheet piles and floor thicknesses to simplify complex geotechnical calculations.
Dam and weir designers apply Khosla's theory to prevent catastrophic foundation piping and uplift failures. It matters because accurate seepage analysis ensures the safety and longevity of expensive hydraulic structures. Modern dam engineering software automates these seepage calculations based on Khosla's foundational equations. Option A refers to Bligh's simpler creep theory, which assumes uniform percolation head loss along the floor. Option B deals with groundwater flow velocity through porous media rather than structural impervious flooring. Option D is incorrect because Khosla is the specifically recognized theory for this flooring length calculation.
- Subject
- Agriculture
- Category
- Agriculture
- Topic
- —
- Difficulty
- medium
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