公路软基处理方案多层次模糊综合评判方法研究

Research on Multi-layer Fuzzy Synthetic Decision for Soft Ground Improvement Scheme of Highway

模糊决策理论和层次分析法是系统工程理论中对非定量问题分析的实用决策方法。本文将模糊理论和层次分析法二者相结合,对影响软土地基处理方案选择的各因素进行分析,确定了评判层次和影响因素,其中,评语隶属度采用模糊理论确定,各影响因素的权值采用层次分析法确定;建立了公路软土地基处理方案选择的多层次模糊综合评判模型,成功地解决了多因素影响下的软基处理方案优选问题,并通过实例进行了验证。验证结果表明,所采用的方法是合理可行的。

The decision making method for soft ground improvement scheme need to consider multiple factors, which include quantitative and non-quantitative factors, mainly consider the non-quantitative factor. Fuzzy theory and analytic hierarchy process （AHP） are two practical methods that are utilized to analyze non-quantitative matters in systematic engineering. By taking advantages of the combination of fuzzy theory and AHP, the model of multi-layer fuzzy synthetic decision for soft ground improvement scheme of highway is put forward, so that the scheme optimization of soft ground improvement under the influence of Multiple factors is realized. A practical example is given to test and demonstrate the use of the model. The degree of membership of comment is determined by fuzzy theory, and the weight of influence factor is determined by AHP. The test results show that the decision making method is feasible.