Dam instability risk analysis of damaged Spillway

Abstract

Parametric errors were analyzed for MASHKID SOFLA Dam Reservoir System. Errors in cavitation number examined for a complex system of Spillways operation and found a potential risk to hydraulic structural stability. The necessary measures for cavitation number, the ways to analyze parametric errors induced through governing equations were investigated. The calculation methods for cavitation number were found liable to risk. A computer coded MATLAB program was established for the selected case study and spillway dam stability problem was investigated. During spilling of flooding water over surface area deteriorations of concrete was observed because of cavitations and the collision of flowing water. Cavitation phenomenon was the cause for holes generation and concerns for severe damages to ogee spillway - dam instability.