Research Article

Overtopping Risk Analysis of Earth Dams considering Effects of Failure Duration of Release Structures

Table 5

Probability distribution parameters for failure duration of release structures.

Release structureScenarios causing failure of release structuresFailure duration (d)

SpillwaySeismic landslide of spillway slope23.55
Gate failure11.52

Flood discharging tunnelSeismic landslide of inlet slope357
Seismic landslide of outlet slope23.55
Gate failure11.52

Power station diversion tunnelSeismic landslide of inlet slope357
Seismic landslide of outlet slope23.55

Emptying tunnelSeismic landslide of inlet slope71115
Seismic landslide of outlet slope23.55
Gate failure357