基于G2-CRITIC-UMT模型的铁路隧道低碳施工评价研究  

Research on Low-Carbon Construction Evaluation of Railway Tunnels Based on G2-CRITIC-UMT Model

作　　者：靳春玲[1] 安祥 贡力[1] 姬照泰 管巧玉 JIN Chunling;AN Xiang;GONG Li;JI Zhaotai;GUAN Qiaoyu(Department of Civil Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China)

机构地区：[1]兰州交通大学土木工程学院,兰州730070

出　　处：《铁道标准设计》2025年第1期139-146,共8页Railway Standard Design

基　　金：国家自然科学基金项目(51969011);甘肃省自然科学基金项目(104013575030)。

摘　　要：促进铁路建设全生命周期低碳转型,关键是发展以铁路施工为主的低碳理念。以碳排放评价作为切入点,基于完整性与可操作性等原则,选取4个具有代表性的一级指标,遴选11个重要影响因素,建立低碳施工评价指标体系,选用G2法及CRITIC法进行主客观权重计算,构建未确知测度理论评价模型,采用置信度识别准则进行等级识别,对广汕铁路8个典型隧道段低碳施工碳排放进行分级评价。研究结果表明:弃渣场复垦率、水土流失防护程度、废水达标排放率、施工材料本地化率等指标会极大地影响铁路隧道低碳施工效果;计算得到其中5个隧道低碳施工等级为Ⅱ级、3个隧道低碳施工等级为Ⅲ级。通过论证,G2-CRITIC-UMT模型评价结果相比于BP神经网络模型准确度更高,与实际情况符合程度由62.5%提高到87.5%,验证模型的准确性,可为铁路隧道低碳施工评价提供新思路。The key to promoting the low-carbon transformation of the whole life cycle of railway construction is to develop the low-carbon concept based on railway construction.Taking carbon emission evaluation as the starting point,with four representative first-level indicators and 11 important influencing factors selected based on the principles of integrity and operability,to establish a low-carbon construction evaluation index system,this paper selects G2 method and CRITIC method to calculate subjective and objective weights,constructs an unascertained measure theory evaluation model,and uses the confidence recognition criterion to identify the grade and evaluates the carbon emission of low-carbon construction of 8 typical tunnel sections in Guangzhou-Shanwei Railway.The results show that the reclamation rate of waste slag yard,the degree of soil erosion protection,the standard discharge rate of wastewater,the localization rate of construction materials and other indicators will greatly affect the low-carbon construction effects of railway tunnels.The low-carbon construction of 5 tunnels is calculated as gradeⅡ,and the low-carbon construction of 3 tunnels is as gradeⅢ.Through demonstration,the evaluation results of G2-CRITIC-UMT model are more accurate than those of BP neural network model,and the degree of conformity with the actual situation is increased from 62.5%to 87.5%,which verifies the accuracy of the model and provides new ideas for the evaluation of low-carbon construction of railway tunnels.

关 键 词：铁路隧道 低碳施工 G2法 CRITIC法 未确知测度理论 

分 类 号：U25[交通运输工程—道路与铁道工程] U455[建筑科学—桥梁与隧道工程]