越江盾构隧道全寿命期碳排放特征与减排途径研究  

Study on Carbon Emission Characteristics and Emission Reduction Approaches in the Full Life Cycle of River-crossing Shield Tunnels

作　　者：艾青 李一轩 朱俊易 AI Qing;LI Yixuan;ZHU Junyi(School of Naval Architecture,Ocean&Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240;Shanghai Urban Construction and Operation(Group)Co.,Ltd.,Shanghai 200023)

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海200240 [2]上海城建城市运营(集团)有限公司,上海200023

出　　处：《现代隧道技术》2023年第6期11-19,共9页Modern Tunnelling Technology

基　　金：国家自然科学基金(51808336).

摘　　要：越江隧道是城市网络中的重要交通基础设施,也是城市交通碳排放主要来源之一,对越江隧道的碳排放计量、评估与减排机制进行研究十分必要。首先确定越江隧道全寿命期碳排放计量边界和清单,分为物化阶段和运维阶段两部分。基于清单分析,建立以碳排放因子法为基础的越江盾构隧道全寿命期碳排放计量模型,并系统分析越江隧道全寿命期与工程活动的对应关系,提出绿色技术驱动的越江隧道碳减排效应估算流程,以碳减排效应系数表征绿色技术的碳排放效果。研究表明:国内外对各类绿色技术的碳减排效应量化研究严重不足;在物化阶段,盾构隧道单位碳排放量随直径的增大而增大,在材料和结构设计不发生变革的情况下,物化阶段碳减排潜力有限;在运维阶段,机电设施的碳排放量与物化阶段碳排放量基本相当,从全寿命期考虑,运维阶段碳减排潜力及可控性更大。The river-crossing tunnel is an important traffic infrastructure in the urban traffic network and one of the main sources of carbon emission in urban traffic,so it is necessary to investigate carbon emission measurement and assessment of river-crossing tunnels and emission reduction mechanism.The first step is to establish the carbon emission measurement boundary and list for the full life cycle of river-crossing tunnels.The life cycle is divided in⁃to two parts,i.e.materialization stage and O&M stage.Based on the list analysis,the carbon emission measurement model for the full life cycle of river-crossing shield tunnels is created based on the carbon emission factor method,the correlation between the full life cycle of river-crossing tunnels and the engineering activities is systematically analyzed,and the river-crossing tunnel carbon emission reduction effect estimation process driven by green technolo⁃gies is devised.The carbon emission result is represented by using the carbon emission reduction effect coefficient.As the study indicates:there is severe lack of quantitative research into the carbon emission reduction effect of various green technologies both at home and abroad.In the materialization stage,the unit carbon emission of shield tunnel increases as the tunnel diameter increases,and there is only limited potential of carbon emission reduction as long as the material and structural design remain unchanged.In the O&M stage,the carbon emission of mechanical and electrical installations is largely equivalent to the carbon emission in the materialization stage.From the aspect of full life cycle,the O&M stage has greater potential of carbon emission reduction and better controllability.

关 键 词：越江盾构隧道 碳排放 绿色技术 减排效应评估 

分 类 号：U459.5[建筑科学—桥梁与隧道工程]