Underground infrastructure full life cycle carbon emission calculation method

The invention discloses an underground infrastructure full-life-cycle carbon emission calculation method, which relates to the technical field of low-carbon buildings, and is characterized in that the carbon emission of an underground infrastructure system is calculated by combining a carbon footprint calculation model and a full-life-cycle LCA, the calculation boundary and the calculation scale of a carbon footprint are determined, and the calculation scale comprises a time scale and a space scale; the spatial scale is the length of a tunnel, the time scale comprises a construction period of infrastructure and a service period of a traffic system, and based on the characteristics of an underground traffic infrastructure system, a three-level calculation boundary, the time scale and the spatial scale of the carbon footprint are respectively given. The underground infrastructure full-life-cycle carbon emission calculation method has the advantages of being comprehensive in analysis and accurate in calculation