RESEARCH ON CARBON ACCOUNTING AND LOW-CARBON CONSTRUCTION PATH FOR A SUPER LARGE CAVERN PROJECT IN HONG KONG

19th WORLD CONFERENCE OF THE ASSOCIATED RESEARCH CENTRES FOR THE URBAN UNDERGROUND SPACE, Belgrade, Serbia, November 4-7, 2025. (Paper No: 8.2.39,  pp. 973-991)

 

АУТОР(И) / AUTHOR(S): Yifeng Li, Juntao Yuan, Wei Li, Zhengqiang Hong, Yingxu Huo

 

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DOI:  10.46793/ACUUS2025.8.2.39

САЖЕТАК / ABSTRACT:

This paper adopts a quantitative methodology based on the Greenhouse Gas(GHG) Emission Factor methodology and refers to the latest version of the ISO 14064 Carbon Emission Standard Evaluation System to conduct a comprehensive carbon accounting about a mega cavern project located in Hong Kong. Based on the characteristics of the project, four categories of carbon emission sources and carbon emission data in the project are analyzed, including direct GHG emissions and removals, indirect GHG emissions from input energy, indirect GHG emissions from transportation and indirect GHG emissions from products used. Finally, the feasibility of low-carbon construction is analyzed for the subsequent construction phase of the project. Using the results of the project’s subsequent carbon emissions analysis as a baseline, the design of low-carbon construction proposals is carried out in four aspects: concrete, steel, owned vehicles and construction machinery. Then the low-carbon construction proposals for three cases are discussed. And the final proposal is determined taking into account costs and carbon reduction benefits.

КЉУЧНЕ РЕЧИ / KEYWORDS:

Mega cavern project; Carbon accounting; Quantitative methodology; Low-carbon construction

ПРОЈЕКАТ / ACKNOWLEDGEMENT:

This paper is sponsored by the Technology Research and Development Project of China State Construction International Holdings Limited (CSCI-2023-Z-17).

ЛИТЕРАТУРА / REFERENCES:

  • Ramesh, T., Prakash, R., Shukla, K.K., 2010. Life cycle energy analysis of buildings: An Overview. Energy and buildings, 42(10), 1592-1600.
  • BS ISO14064-1-2018. Greenhouse gases. Specification of a level-of-organisation guideline for quantifying and reporting greenhouse gas emissions and removals.
  • Intergovernmental Panel on Climate Change 2006 IPCC Guidelines for National Greenhouse Gas Inventories ,2006. Japan: Institute for Global Environmental Strategies, Japan.
  • Wackemagel, M., Rees, W.E., 1997. Our ecological footprint reducing human impact on the earth. Population and Environment, 19(2): l85-189.
  • Jessica, A.,2008. What is a Carbon Footprint?. UK: The Edinburgh Centre for Carbon Management.
  • Thomas, W., Jan, M., 2007. A Definition of Carbon Footprim, UK: Research and Consulting.
  • Andrew, J.E., 2008. What is a Carbon Footptint? An overview of definitions and methodologies.
  • Nicolas, H., Ali, A., Issam, S., 2012. Developing a Carbon Footprint Calculator for Construction Buildings. Construction Research Congress, United States: American Society of Civil Engineers(ASCE), 1689-1699.
  • Thomas, A., Mice, 2009. Estimating carbon dioxide emissions for aggregate use. Proceedings of the Institution of Civil Engineers, 162(3): 135-144.
  • Monahan, J., Powell, J. C., 2011. An embodied carbon and energy analysis of modem methods of construction in housing: A case study using a lifecycle assessment framework. Energy and Buildings, 43: 179-188.
  • Hammond, G.P., Jones, C.I., 2008. Embodied energy and carbon in construction materials. Proceedings of the Institution of Civil Engineers-Energy, 161(2):87-98.
  • Environmental Protection Department and Electrical and Mechanical Services Department, 2010. Guidelines for Accounting and Reporting of Greenhouse Gas Emissions and Removals for Buildings (Commercial, Residential or Public) in Hong Kong.
  • United State Environmental Protection Agency (US EPA), Center for Corporate Climate leadership, 2020-2023, GHG Emission Factors Hub.
  • Hong, J.K., Shen, G.Q.P., Feng, Y., 2015. Greenhouse Gas Emissions during the Construction Phase of a Building: A Case Study in China. Journal of Cleaner Production, Vol 103, 249–259.
  • Agarwal, R., 2005. IPCC/TEAP Special Report: Safeguarding the Ozone Layer and the Global Climate System. IPCC.
  • China Power Sustainability Report, 2022. CLP Grou.
  • GBT 51366-2019. Ministry of Housing and Urban-Rural Development of China, Standard for Calculating Carbon Emissions from Buildings.
  • Water Supplies Department, Hong Kong, 2020/21.
  • Drainage Services Department Sustainability Report 2020-202.
  • Drainage Services Department Sustainability Report 2020-2021.
  • UK Business Reporting Conversion Factors, 2023. Department for Energy Security & Net Zero and Department for Environment, Food & Rural Affairs.
  • Apple Product Environmental Report, 2021-2022. Apple. iPhone 13,14, iPad Pro.
  • Samsung Product Environmental Report, 2023. Samsung. GALAXY S21 ULTRA, SAMSUNG GALAXY TabS7.
  • CFP Quantification Tool – Ready-mixed Concrete, 2018. Hong Kong Construction Industry Council.
  • Gan, V.J., Cheng, J.C., Lo, I.M., 2017. Developing a CO2-e accounting method for quantification and analysis of embodied carbon in high-rise buildings, Journal of Cleaner Production, 141, 825-836.
  • Gan, V.J., Chan, C.M., Tse, K.T., 2019. Sustainability analyses of embodied carbon and construction cost in high-rise buildings using different materials and structural forms. HKIE Transactions, 24(4), 216-227.
  • Better Utilization of Ultimate Strength Gain of Concrete with Pozzolanic Materials for Sustainable Development of Construction Works in Hong Kong, 2018. Hong Kong Construction Industry Council.
  • Gao, L., Chen, M. Z., Gao, B., 2015. Research on large dosage of mineral powder to formulate C30 concrete. New Building Materials, 47-49, 53.