多目标模糊优选方法在深基坑工程方案优选中的应用

Application of Multi-objective Fuzzy Optimization Method in Deep Excavation Design

基坑设计过程中,需要考虑方案可靠性、工程造价、施工难度、工期、环境等因素的影响,对设计方案的优选就是实现多目标的最优。在介绍多目标模糊优选方法基础上,建立了满意决策模糊优选模型,确定出影响深基坑开挖的10个指标,利用层次分析法计算了这些指标在设计方案中所占的权重,并将其应用于创世纪工程深基坑开挖方案的优选中,取得了较好的效果。

In the design of a deep excavation, an optimized approach should consider impact of construction safety, cost, con- struction schedule, constructability, adjacent facilities and structures etc. In this case study of the Chuangshiji Project, a multi- objective fuzzy optimization system is established based on 10 factors that might affect the deep excavation construction. The importance of these factors is determined throughout the analytical hierarchy process. The selected design approach in the case study was proven successful.