摘要
【目标】研究高速公路隧道机电安装施工过程中的碳排放问题,以推动交通基础设施施工节能减排。【方法】采用碳排放系数法,从材料生产、材料运输和现场施工3个过程计算高速公路隧道机电安装过程中碳排放量。将机电安装功能划分为通风控制功能、照明控制功能、消防控制功能、供配电控制功能和监控与通信控制功能,运用价值工程原理,从绿色施工角度对隧道机电安装各控制功能进行碳排放评价,根据评价结果采取相应的控制措施。【结果】原高速公路隧道机电安装碳排放总量为9508.63 t CO_(2)e,材料生产阶段产生的碳排放占整个安装施工过程的84.21%,钢材和电力的碳排放占比较大,分别为29.71%和10.92%,照明控制功能和监控与通信功能价值系数小于1,通风控制功能、消防控制功能和供配电控制功能的价值系数大于1。根据计算结果和现场施工情况,工程采用LED隧道照明灯具、自动化照明控制技术、BIM技术,增设监控与通信设备,更换新型火灾探测器等控制措施后,碳排放减少了1529.52 t CO_(2)e,同时各控制功能价值系数接近于1。【结论】在保证正常功能的前提下,能够实现高速公路隧道机电安装工程碳排放量的减排,表明了价值工程原理在高速公路隧道机电安装碳排放评价中具有可行性。
[Objective]To promote the energy conservation and emission reduction in transportation infrastructure construction,the study investigated carbon emission issues during expressway tunnel electromechanical installation.[Method]The carbon emission coefficient method was adopted to calculate carbon emissions during expressway tunnel electromechanical installation from three processes,i.e.,material production,material transportation and in-situ construction.The electromechanical installation functions were divided into ventilation control function,lighting control function,fire control function,power supply and distribution control function,monitoring and communication control function.The value engineering principle was applied to evaluate carbon emissions of various control functions during electromechanical installation from the perspective of green construction.The corresponding control measures were adopted based on the evaluation result.[Result]The total carbon emissions during expressway tunnel electromechanical installation is 9508.63 t CO_(2)e.The carbon emission generated during material production accounts for 84.21%of the entire installation process.The carbon emissions of steel and electricity account for large proportions of 29.71%and 10.92%respectively.Value coefficients of the lighting control function and the monitoring&communication function are less than 1.Value coefficients of the traffic risk control function,fire control function,and power supply&distribution control function are greater than 1.Due to the calculation result and in-situ construction situation,the carbon emissions are reduced by 1529.52 t CO_(2)e when the control measures are adopted,e.g.,LED tunnel lighting fixtures,automated lighting control technology,BIM technology,additional monitoring and communication equipment,and replaced new fire detectors.Simultaneously,the value coefficient of each control function is close to 1.[Conclusion]Under the premise of ensuring normal functions,the carbon emission reduction during expressway tunnel electromechanical installation can be achieved.It indicates that the value engineering principle is feasible in carbon emission assessment on expressway tunnel electromechanical installation.
作者
徐鸿伟
顾浩宇
李经宇
张勇
于英霞
XU Hongwei;GU Haoyu;LI Jingyu;ZHANG Yong;YU Yingxia(China Railway Seventh Group Electric Engineering Co.,Ltd.,Zhengzhou,Henan 450000,China;School of Civil Engineering and Architecture,Henan University of Science and Technology,Luoyang,Henan 471000,China)
出处
《公路交通科技》
北大核心
2025年第8期189-195,共7页
Journal of Highway and Transportation Research and Development
基金
国家自然科学基金项目(U1604135)
中铁七局集团电务工程有限公司A类科研项目(2022A45)
河南省科技厅产学研合作项目(2015HNCXY011)。
关键词
环境工程
碳排放
价值工程
机电安装
二氧化碳
environmental engineering
carbon emission
value engineering
electromechanical installation
carbon dioxide
