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提出了一种适合近海边际油田开发的多功能混凝土平台型式，并对其进行了优化设计．分析了各约束对平台造价的影响，确定了平台的应用范围．优化分析中采用了约束单调性分析、初始点自动给定等方法，加快了优化的迭代收敛速度，并对初稳性高度GM值采用了模糊优化方法，考虑了影响GM值的主观因素．
A kind of multi-purpose concrete platform suitable for the development of offshore marginal oilfield is proposed and its design is optimized. The impact of each constraint on the platform cost is analyzed, and the application range of the platform is determined. In the optimization analysis, constrained monotonicity analysis and automatic initial point setting are used to speed up the optimization of iterative convergence rate. The fuzzy optimization method is adopted for the initial stability height (GM) value, and the subjective factors affecting the GM value are considered.