Research on Carbon Emission Accounting and Emission Characteristics of Subway Station Construction Period Based on LCA
The construction period of subway consumes a substantial amount of resources and energy,emitting large quantities of greenhouse gases.Based on the theory of Life Cycle Assessment(LCA),this study employs the engineering quantity list method to establish a carbon emission calculation model for urban rail transit station construction periods.Using a typical subway station project in Tianjin as case study,the paper analyzes the total carbon emissions and carbon intensity during construction period of the subway station,along with comparisons among different construction methods and emission scopes.The analysis reveals that the average carbon emission intensity during the subway station construction period is 4.45 tCO2eq./m2.In terms of emission scopes,emissions from scopes one,two,and three account for 3.87%,1.74%,and 94.39%of the total emissions,respectively.
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