The safety of a hydraulic structure founded on a pervious foundation can be ensured by: i. Provision sufficient length of its concrete floor. ii. Providing sufficient depth of its concrete floor. iii. Provision a downstream cutoff of some reasonable depth.
The safety of a hydraulic structure founded on a pervious foundation can be ensured by: i. Provision sufficient length of its concrete floor. ii. Providing sufficient depth of its concrete floor. iii. Provision a downstream cutoff of some reasonable depth. Correct Answer i, ii and iii
The safety against piping can be ensured by providing sufficient creep length as per Bligh’s theory. The thickness of the concrete floor is generally increased by 33% to allow a suitable factor of safety for the worst conditions. A reasonably deep vertical cutoff is also provided at the downstream end of the floor to prevent undermining.
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Feb 20, 2025