深基坑工程设计方案优化决策与评价模型研究

基于深基坑工程的知识和经验,分析了深基坑工程设计系统的特点,即是由一个由时间维、逻辑维和方法维组成的三维系统。其中,方案设计是深基坑工程优化设计中的关键环节。从安全可行、经济合理、环境保护、施工便捷四个方面,建立了深基坑工程设计方案评价指标体系,并采用多目标模糊决策理论推导出了深基坑工程设计方案优化决策与评价模型,并应用于工程实践。

Study on the optimum decision-making and evaluation model for the design of deep excavation

Based on the knowledge and experience of deep excavation engineering, the characteristics of design system for deep excavation were analyzed, namely three dimensions constituted by time, logic with method dimension. Among them, the project design was a key link. From four aspects of safety, economy, environmental protection and construction promptness, the index system for evaluating the project design was established and the optimum decision-making and evaluation model was deduced from the multi-objectives fuzzy decision-making theory for the project design of deep excavation and its application in the actual engineering was proved to gain superior decision result.