LIFE-CYCLE CARBON FOOTPRINT OF UNDERGROUND INFRASTRUCTURE

19th WORLD CONFERENCE OF THE ASSOCIATED RESEARCH CENTRES FOR THE URBAN UNDERGROUND SPACE, Belgrade, Serbia, November 4-7, 2025. (Paper No: 3.2.158,  pp. 467-475)

 

АУТОР(И) / AUTHOR(S): Luyuan Long, Wout Broere, Xuehui Zhang

 

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DOI:  10.46793/ACUUS2025.3.2.158

САЖЕТАК / ABSTRACT:

The construction industry is a major source of greenhouse emissions, and underground infrastructure, including tunnels, is responsible for a significant proportion of the overall carbon emissions. Studies on the carbon footprint of tunnels often focus on only part of the full life cycle or on a particular type of tunnels only, and do not consider and compare the carbon emissions of different types of tunnels over the full life cycle. This paper compares the carbon footprint of the four common types of tunnels, namely, shield tunnels, new Austrian tunnelling method (NATM) tunnels, cut-and-cover tunnels, and immersed tunnels, during the design, construction, operation and maintenance (O&M), as well as dismantling phases. A case study of a real-world tunnel project is used to quantify carbon emissions and reveal differences in emission magnitude and distribution across tunnel types and life cycle stages. Finally, this paper suggests several key carbon reduction measures for achieving a low-carbon design.

КЉУЧНЕ РЕЧИ / KEYWORDS:

Carbon footprint, Life cycle assessment, Tunnels, Low-carbon design

ПРОЈЕКАТ / ACKNOWLEDGEMENT:

ЛИТЕРАТУРА / REFERENCES:

  • Barbhuiya, S., Das, B. B., Adak, D., Kapoor, K., & Tabish, M. (2025). Low carbon concrete: advancements, challenges and future directions in sustainable construction. Discover Concrete and Cement, 1(1), 1-24.
  • Chang, B., & Kendall, A. (2011). Life cycle greenhouse gas assessment of infrastructure construction for California’s high-speed rail system. Transportation Research Part D: Transport and Environment, 16(6), 429-434.
  • Da Fonseca-Soares, D., Eliziário, S. A., Galvinicio, J. D., & Ramos-Ridao, A. F. (2023). Life-Cycle Greenhouse Gas (GHG) Emissions Calculation for Urban Rail Transit Systems: The Case of Pernambuco Metro. Applied Sciences, 13(15), 8965.
  • Fei, L., Zhang, Q., & Xie, Y. (2017, June). Study on energy consumption evaluation of mountainous highway based on LCA. In IOP Conference Series: Earth and Environmental Science (Vol. 69, No. 1, p. 012036). IOP Publishing.
  • Gan, V. J., Wong, C. L., Tse, K. T., Cheng, J. C., Lo, I. M., & Chan, C. M. (2019). Parametric modelling and evolutionary optimization for cost-optimal and low-carbon design of high-rise reinforced concrete buildings. Advanced engineering informatics, 42, 100962.
  • Guo, C., Xu, J., Yang, L., Guo, X., Liao, J., Zheng, X., … & Wang, M. (2019). Life cycle evaluation of greenhouse gas emissions of a highway tunnel: A case study in China. Journal of Cleaner Production, 211, 972-980.
  • Guo, Y., Dong, C., Chen, Z., Zhao, S., Sun, W., He, W., … & Guo, C. (2025). Evaluation of greenhouse gas emissions in subway tunnel construction. Underground Space.
  • IEA, UNEP, 2018 Global Status Report: towards a zero–emission, efficient and resilient buildings and construction sector, International Energy Agency and the United Nations Environment Programme, 2018.
  • Long, L., Zhang, X., Broere, W., de Nijs, R., & Xia, T. (2025). Assessing life-cycle carbon footprint of tunnels. In Tunnelling into a Sustainable Future–Methods and Technologies (pp. 4574-4581). CRC Press.
  • Ministry of Housing and Urban-Rural Development of the People’s Republic of China. (2019). Standard for building carbon emission calculation (GB/T 51366-2019). China Architecture & Building Press. (in Chinese).
  • National Power CO₂ Emission F (2021). Ministry of Ecology and Environment. https://www.mee.gov.cn/xxgk2018/xxgk/xxgk01/202404/t20240412_1070565.html
  • Peñaloza, G. A., Vignisdottir, H. R., Kristensen, T., & Ramsnes, E. (2024). Greenhouse gas emission reduction potential in road tunnels–Can we reach the European Union goals with existing materials and technologies?. Tunnelling and Underground Space Technology, 153, 106011.
  • Spyridis, P., & Bergmeister, K. (2024). Sustainable tunnel design: concepts and examples of reducing greenhouse gas emissions through basic engineering assumptions. Tunnelling and Underground Space Technology, 152, 105886.
  • UNEP-SBCI, Buildings and Climate Change – Summary for Decision Makers, United Nations Environment Programme (UNEP), 2009.
  • Wu, H., Zhou, W., Bao, Z., Long, W., Chen, K., & Liu, K. (2024). Life cycle assessment of carbon emissions for cross-sea tunnel: A case study of Shenzhen-Zhongshan Bridge and Tunnel in China. Case Studies in Construction Materials, 21, e03502.
  • Xiao, X. (2021). Study on life cycle carbon emission and life cycle cost of green buildings (Master’s thesis, Beijing Jiaotong University). Beijing Jiaotong University.
  • Xin, T., Roberts, C., He, J., Hillmansen, S., Zhao, N., Chen, L., … & Su, S. (2014, October). Railway vertical alignment optimisation at stations to minimise energy. In 17th International IEEE Conference on Intelligent Transportation Systems (ITSC) (pp. 2119-2124). IEEE.