A Novel Approach to Multi-objective Topology Optimization of Pile Foundations: The MOMPA Algorithm

This chapter explores the application of the MOMPA algorithm, an enhanced heuristic inspired by marine predator hunting strategies, to optimize the topology and cross-sectional dimensions of pile foundations. The study focuses on the Mooring Dolphin structure at Hai Linh LNG Port in Vietnam, aiming to minimize weight while controlling displacement within safety margins. The MOMPA algorithm effectively balances exploration and exploitation through three behavioral modes: broad exploration, mixed exploration-exploitation, and intensive local search. It maintains an external archive of Pareto-optimal solutions and uses elite predator selection and Gaussian perturbations to ensure diversity and avoid local optima. The optimization results show a 26.9% reduction in weight and a 35% decrease in displacement, outperforming the current design. The study highlights the potential of MOMPA for improving the design of complex civil engineering projects, making them more efficient and sustainable.