Mostly the hydraulic structures founded on ____________ soils fails because of undermining and uplift pressure?
Correct answer: D. Permeable
- A. Stable
- B. Rocky
- C. Impermeable
- D. Permeable
Explanation
Permeable foundation soils allow seepage beneath a hydraulic structure, producing uplift pressure and piping or undermining at the downstream exit. Impermeable or sound rocky foundations are much less susceptible to these seepage failures.
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Practise Irrigation and Water Management
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