摘要
本文以青藏铁路8个典型路桥过渡段为研究对象,筛选出影响寒区路桥过渡段稳定性的15个主要因素,并运用因子分析法和熵值法确定出各评价指标的权重。依托青藏铁路工程数据,基于模糊综合评价法构建路桥过渡段的稳定性评价模型,对青藏铁路运行8年后的稳定性进行综合评价。将评判结果与青藏铁路实际运行后的监测数据对比分析,可知基于模糊数学理论做出的整体评定结果与实际相符。
This paper takes 8 typical road and bridge transition sections of Qinghai-Tibet Railway as research objects,screens out 15 main factors affecting the stability of road and bridge transition sections in cold areas,and determines the weights of each evaluation index by using factor analysis and entropy value method.Relying on the engineering data of Qinghai-Tibet Railway,the stability evaluation model of road and bridge transition section is constructed based on the fuzzy comprehensive evaluation method,and the stability of Qinghai-Tibet Railway is comprehensively evaluated after 8 years of operation.Comparing and analyzing the evaluation results with the monitoring data after the actual operation of Qinghai-Tibet Railway,it can be seen that the overall evaluation results based on the fuzzy mathematical theory are consistent with the reality.
出处
《工程经济》
2024年第12期68-80,共13页
ENGINEERING ECONOMY
基金
甘肃省高校教师创新基金项目(2024B-256)
关键词
模糊数学理论
多年冻土区
路桥过渡段
稳定性评价
Fuzzy Mathematical Theory
Perennial Permafrost
Road and Bridge Transition Section
Stability Evaluation
