地铁站建筑全生命周期碳排放研究——以成都三号线某站为例

Research on Life Cycle Carbon Emissions of Metro Stations:Taking a Station on Chengdu Line 3 as an Example

针对城市轨道交通系统迅速发展带来的日益突出的碳排放问题,以在城市轨道交通系统中能耗比重达到50%的地铁站建筑为研究对象,计算其全生命周期碳排放量,并分析其碳排放特征和变化规律。研究发现相比较于常规建筑,地铁车站建筑物化过程碳排放在其全生命周期中的比重明显更高,在车站使用年限为50年时可达49%排放量。最后基于地铁车站碳排放特征,对其生命周期内的减排提出针对性的建议。

According to the increasingly prominent carbon emission problems caused by the rapid development of urban rail transit system,this paper takes the metro station whose energy consumption accounts for 50%in the urban rail transit system as the objective,calculates its full life cycle carbon emissions,and analyzes its carbon emission characteristics and law of changes.The results show that compared with conventional buildings,the carbon emissions of metro stations during the construction process are significantly higher in their entire life cycle,reaching 49%when the service life of the station is 50 years.Finally,based on the carbon emission characteristics of metro stations,proposes targeted suggestions for reducing emissions in its life cycle.