基于模糊层次分析法的北京西山基坑工程支护方案选择研究

Optimization Design of Beijing Xishan Foundation Pit Supporting Project Based on the Integrated Fuzzy Analytic Hierarchy Process

基坑工程支护方案优化设计的重要性在人类城市基础设施建设过程中愈加显现,本文以北京西山基坑工程为研究对象,选取安全可行性、经济合理性、环境优越性、以及施工便捷性作为方案优选的重要指标,建立了基坑支护方案评价体系,综合使用层次分析法和模糊综合评判法对该项目进行定量评估,以分值大小对三种备选方案进行优选,结果表明,桩锚支护为最优方案,对工程实践有一定的参考价值。

The importance of optimized design of foundation pit support schemes is becoming more apparent in the process of human urban infrastructure construction. This paper takes the Xishan foundation pit project in Beijing as the research object, and selects the safety and feasibility, economical rationality, environmental superiority,and construction convenience as an important indicators of the optimization of the scheme, an evaluation system for the foundation pit supporting scheme was established. The project was quantitatively evaluated using the AHP method and the fuzzy comprehensive evaluation method. Three alternatives were optimized by the evaluation score. The results showed that;pile-anchor support is the best option, and this paper has certain reference value for engineering practice.