Reliability Analysis of Failure Probability of Wave-Dissipating Blocks

Abstract

The probability of failure due to armour layer instability was estimated using a reliability software package which employs the Level II First Order Reliability Method (FORM). The stability of concrete blocks was investigated and the stability formulae taking into account the effects of wave steepness and wave breaking were used in the realibility analysis. The sensitivity of the performance function to external random variables was examined in order to establish the relative importance of variables influencing the failure probabilities.