关键词: 水工结构, 维修加固, 多目标, 粒子群算法, 全生命周期成本

Abstract: In the past, the goal of maintenance was mostly to minimize the current maintenance cost or maximize the benefits, but lacked the consideration of the life cycle cost. Considering the minimum life cycle cost of maintenance and reinforcement as well as the optimal service performance of the hydraulic structures, a model is established by multi-objective particle swarm optimization. The above-mentioned model is applied to actual project, and its maintenance and reinforcement decision-making scheme is optimized and formulated. The research results show that this method could provide scientific basis for the maintenance and reinforcement of hydraulic structures in the whole life cycle.

Key words: hydraulic structure, maintenance and reinforcement, multi-objective, particle swarm optimization, life cycle cost