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Abstract

Improving dam safety and flood resilience necessitates effective energy dissipation within spillways. This study investigates the efficacy of various baffle pier configurations in enhancing energy dissipation performance of dam spillways. Additionally, it explores the potential of intermittent basins as an alternative spillway design for superior flood control. The research employs a comparative approach, analysing the performance of traditional ogee spillways without baffles against spillways incorporating various baffle pier configurations. Experiments explore the influence of baffle size, shape, and number of layers on flow patterns and energy dissipation. Square, circular, triangular, and rectangular baffles are investigated in single, double, and triple layer arrangements. To explore alternative spillway designs, the effectiveness of intermittent basins, compared to ogee spillways, in dissipating energy within sloped spillways is investigated. The influence of the number of intermittent basins (one or two) on energy dissipation across varying discharge rates is meticulously assessed. The findings of this study reveal that strategically designed baffle piers significantly enhance energy dissipation within spillways. The optimal baffle configuration depends on factors like size, shape, and number of layers. Notably, intermittent basins demonstrate superior energy dissipation capabilities compared to traditional ogee spillways, with the number of basins influencing the overall effectiveness. this research contributes valuable insights into spillway design optimisation, offering practical strategies for enhancing flood resilience and hydraulic performance in dam infrastructure. The knowledge gained on baffle pier configurations and the potential of intermittent basins paves the way for the development of more efficient and sustainable dam spillway systems

Course: Civil Engineering - MSc - C0618

Date Deposited: 2025-01-16

URI/permalink: https://library.port.ac.uk/dissert/dis14650.html