GHG emission quantification and reduction pathway of subway shield tunnel engineering: a case study on Guangzhou Metro, China

被引：2
作者：
Wu, Huanyu [1 ,2 ,3 ]
Yang, Kehua [1 ,2 ]
Chen, Kunyang [1 ,3 ,4 ]
Zhou, Wenwen [1 ,2 ]
Yu, Tao [5 ]
Wang, Kai [6 ]
机构：
[1] College of Civil and Transportation Engineering, Shenzhen University, Shenzhen
[2] Sino-Australia Joint Research Center in BIM and Smart Construction, Shenzhen University, Shenzhen
[3] National Key Laboratory for Intelligent Construction and Maintenance of Extreme Environment Geotechnical and Tunnel Engineering, Shenzhen
[4] Shenzhen Key Laboratory of Green, Efficient and Intelligent Construction of Underground Subway Station, Shenzhen
[5] Shenzhen TH SWARE Technology Co., Shenzhen
[6] Shaanxi Railway Institute, Shanxi, Weinan
来源：
Environmental Science and Pollution Research | 2024年 / 31卷 / 42期
关键词：
GHG emissions; GHG reduction pathway; LCA; Subway shield tunnel;
D O I：
10.1007/s11356-024-34826-1
中图分类号：
学科分类号：
摘要：
The shield method is a commonly used construction technique in subway tunnel engineering. However, studies on greenhouse gas (GHG) emissions specifically in subway shield tunnel engineering are lacking. This study aims to investigate the GHG emission characteristics and GHG reduction pathways during the construction period of subway shield tunnels. Firstly, based on the life cycle assessment (LCA) method, a greenhouse gas (GHG) emission quantification model for the shield tunnel construction period was developed using a multi-level decomposition of construction. Then, the GHG emission level and intensity during the construction period of a case project are quantified, and its emission characteristics and GHG reduction potential points are assessed. Finally, a comprehensive path for GHG reduction in subway shield tunnel engineering is proposed. The research results indicate that constructing 1 km of subway shield tunnel can generate 19,294.28 t CO2eq. Among these, material production element dominates the emissions with a percentage of 89.05%, while transportation and mechanical construction elements contribute 1.81% and 9.14%, respectively. From the structure perspective, the main structure contributes 88.73% of total emissions, while the ancillary structure contributes 11.27%. Among them, the working shaft and tunnel segments are the main sources of emissions for the main structure, accounting for 23.65% and 65.08%, respectively. Connecting channel and end reinforcement are the main emission sources of the ancillary structures, accounting for 43.63% and 31.30%, respectively. These findings provide a scientific foundation for the environmentally friendly transformation of urban railway development regarding pursuing “carbon peaking and carbon neutrality” strategic goals. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.
引用
收藏
页码：54768 / 54784
页数：16
相关论文
共 56 条
  • [1] Ahn C., Xie H., Lee S.H., Abourizk S., Pena-Mora F., Carbon footprints analysis for tunnel construction processes in the preplanning phase using collaborative simulation, Construction Research Congress 2010: Innovation for Reshaping Construction Practice, pp. 1538-1546, (2012)
  • [2] AzariJafari H., Yahia A., Amor M.B., Life cycle assessment of pavements: reviewing research challenges and opportunities, J Clean Prod, 112, pp. 2187-2197, (2016)
  • [3] Buschka M., Bischof J., Meier-Dotzler C., Lang W., Developing non-residential building stock archetypes for LCI—a German case study of office and administration buildings, Int J Life Cycle Assess, 26, pp. 1735-1752, (2021)
  • [4] Chaturvedi V., Kim S.H., Long term energy and emission implications of a global shift to electricity-based public rail transportation system, Energy Policy, 81, pp. 176-185, (2015)
  • [5] Chen K.Y., Chen X.S., Wang L., Yang W.S., Qiu T., Su D., Wu H.Y., Low-carbon effects of constructing a prefabricated subway station with temporary internal supports: an innovative case of Shenzhen, China, J Clean Prod, 426, (2023)
  • [6] Chen K.Y., Duan H.B., Zhang Y., Et al., Research on carbon emission intensity and reduction potential in Guangzhou metro shield tunnel construction phase, Tunnel Constr, 42, 12, (2022)
  • [7] Chen R., Li L.X., Yang K., Ren F., Xi C.G., Lin Y., Zheng H., Quantitative methods for predicting underground construction waste considering reuse and recycling, Environ Sci Pollut Res, 29, pp. 3394-3405, (2022)
  • [8] Chen X.L., Zhang X.M., Chen J., Hu T., Wan C., Long L.D., Yang F., Green construction optimization of ultrasmall clearance tunnel based on carbon emission evaluation, China J Highw Transp, 1, pp. 59-70, (2022)
  • [9] Cheng H., Madanat S., Horvath A., Planning hierarchical urban transit systems for reductions in greenhouse gas emissions, Transp Res Part D Transp Environ, 49, pp. 44-58, (2016)
  • [10] Urban Rail Transit Statistics Annual Report, (2022)
123456