Probabilistic analysis in surface water hydrology: Open drainage channels and detention basins
Garza, John David
Master of Science
A reliability-based method for analyzing open drainage channels and detention basins using the full marginal distributions of uncertain parameters together with correlation coefficients will be presented in this work. A first and second order component reliability analysis will be performed using the computer program CALREL. Reliability results can be used both in performance and safety assessment of existing structures and in designing structures for a target reliability level. For the case of an open drainage channel, the computed reliability index will be compared with the usual safety factors of design, and a comparison will also be made of the reliability indices obtained using different runoff formulations. For the case of a detention basin, reliability results will be used as a design tool in the sizing of detention basins. The interaction of channels and basins will also be addressed.