Design and Analysis of the DamPresented By:Abeysinghe A.M.K.T.040003

Design GuidelineDesign of irrigation Head Works for small Catchments-A.J.P. Ponrajah - Department of Irrigation

Data Results from operation study and flood study,

Sill of the Sluice = 94.5 ft (MSL)

(Level above the 2.5ft from bottom of the tank)

Minimum Operating Level = 97 ft (MSL)(1 foot above the top of the opening of the sluice)

Full Supply Level (FSL) = 101 ft (MSL)

Discover the design parameters FSL- from operation studyHFL- from flood study

Discover the design parameters (Cont..)B = ft (minimum)

Discover the design parameters (Cont..)Normally Rip-Rap is not use for village tanks.Why we use it?

Discover the design parameters (Cont..)To ensure the slopes need to analyze it for slope stability.

Proposed section

Proposed section (Cont..)

Analyzing of the DamEmbankment slope stabilityEnd of constructionRapid drawdownTank full conditionSeepage

Software usedSTB2006-Arnold Verruijt-

Outputs

Outputs (Cont..)

Thank you..

Up to 20ft and 20ft to 30ft , earth dam- benefits, material availability, local construction, low cost