Low carbon effects of super large diameter shield directly cutting piles project: A case study in China
With the increasing number of cutting pile projects in shield tunnel construction, reducing the embedded carbon emissions in cutting pile projects plays a significant role in addressing low-carbon issues. Based on the characteristics of cutting pile projects, this paper defines the carbon emission b...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-07-01
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| Series: | Case Studies in Construction Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509525000634 |
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| author | Yifan Chen Xiangsheng Chen Jian Ouyang Xiang Shen Shuhua Huang Jian Sheng Liang Zhang |
| author_facet | Yifan Chen Xiangsheng Chen Jian Ouyang Xiang Shen Shuhua Huang Jian Sheng Liang Zhang |
| author_sort | Yifan Chen |
| collection | DOAJ |
| description | With the increasing number of cutting pile projects in shield tunnel construction, reducing the embedded carbon emissions in cutting pile projects plays a significant role in addressing low-carbon issues. Based on the characteristics of cutting pile projects, this paper defines the carbon emission boundary and proposes a carbon emission calculation model. The model is used to calculate the carbon emissions of cutting pile projects for two different shield tunnel diameters, employing three major construction methods. According to the results, a systematic analysis is conducted on the carbon emission proportions and key influencing factors at each stage of the pile underpinning method. The carbon emissions of three methods and two type of shield diameter were compared. The results show that the material production phase is the primary source of carbon emissions in cutting pile projects using the pile underpinning method (with concrete and steel being the main contributors, accounting for over 90 %), comprising 69.86 % of the total emissions. Compared to the pile underpinning method, the building demolition method can reduce carbon emissions by 54.56 %. Steel segment are a significant influencing factor in carbon emissions for metro shield tunnel cutting pile projects, increasing emissions by 87.46 % and 139.32 % compared to the pile underpinning method and the building demolition method, respectively. These findings provide a reference for selecting construction methods for cutting pile projects from the perspective of carbon emissions. |
| format | Article |
| id | doaj-art-5f5413e24edd40eaa296fd7e4cd61cd9 |
| institution | Kabale University |
| issn | 2214-5095 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj-art-5f5413e24edd40eaa296fd7e4cd61cd92025-01-19T06:25:03ZengElsevierCase Studies in Construction Materials2214-50952025-07-0122e04264Low carbon effects of super large diameter shield directly cutting piles project: A case study in ChinaYifan Chen0Xiangsheng Chen1Jian Ouyang2Xiang Shen3Shuhua Huang4Jian Sheng5Liang Zhang6State Key Laboratory of Intelligent Geotechnics and Tunnelling (Shenzhen•University), Shenzhen 518060, China; Key Laboratory of Coastal Urban Resilient Infrastructures (Shenzhen University), Ministry of Education, Shenzhen 518060, ChinaState Key Laboratory of Intelligent Geotechnics and Tunnelling (Shenzhen•University), Shenzhen 518060, China; Key Laboratory of Coastal Urban Resilient Infrastructures (Shenzhen University), Ministry of Education, Shenzhen 518060, ChinaGuangzhou Haizhu Bay Construction Co., Ltd., Guangzhou 510230, ChinaState Key Laboratory of Intelligent Geotechnics and Tunnelling (Shenzhen•University), Shenzhen 518060, China; Key Laboratory of Coastal Urban Resilient Infrastructures (Shenzhen University), Ministry of Education, Shenzhen 518060, China; Corresponding author at: State Key Laboratory of Intelligent Geotechnics and Tunnelling (Shenzhen•University), Shenzhen 518060, China.China Railway 14th Bureau Group Mega Shield Engineering Co., Ltd., Nanjing 211800, ChinaChina Railway 14th Bureau Group Mega Shield Engineering Co., Ltd., Nanjing 211800, ChinaChina Railway 14th Bureau Group Mega Shield Engineering Co., Ltd., Nanjing 211800, ChinaWith the increasing number of cutting pile projects in shield tunnel construction, reducing the embedded carbon emissions in cutting pile projects plays a significant role in addressing low-carbon issues. Based on the characteristics of cutting pile projects, this paper defines the carbon emission boundary and proposes a carbon emission calculation model. The model is used to calculate the carbon emissions of cutting pile projects for two different shield tunnel diameters, employing three major construction methods. According to the results, a systematic analysis is conducted on the carbon emission proportions and key influencing factors at each stage of the pile underpinning method. The carbon emissions of three methods and two type of shield diameter were compared. The results show that the material production phase is the primary source of carbon emissions in cutting pile projects using the pile underpinning method (with concrete and steel being the main contributors, accounting for over 90 %), comprising 69.86 % of the total emissions. Compared to the pile underpinning method, the building demolition method can reduce carbon emissions by 54.56 %. Steel segment are a significant influencing factor in carbon emissions for metro shield tunnel cutting pile projects, increasing emissions by 87.46 % and 139.32 % compared to the pile underpinning method and the building demolition method, respectively. These findings provide a reference for selecting construction methods for cutting pile projects from the perspective of carbon emissions.http://www.sciencedirect.com/science/article/pii/S2214509525000634Shield tunnelCutting pileGHG emissionLCA evaluationLow-carbon effect |
| spellingShingle | Yifan Chen Xiangsheng Chen Jian Ouyang Xiang Shen Shuhua Huang Jian Sheng Liang Zhang Low carbon effects of super large diameter shield directly cutting piles project: A case study in China Case Studies in Construction Materials Shield tunnel Cutting pile GHG emission LCA evaluation Low-carbon effect |
| title | Low carbon effects of super large diameter shield directly cutting piles project: A case study in China |
| title_full | Low carbon effects of super large diameter shield directly cutting piles project: A case study in China |
| title_fullStr | Low carbon effects of super large diameter shield directly cutting piles project: A case study in China |
| title_full_unstemmed | Low carbon effects of super large diameter shield directly cutting piles project: A case study in China |
| title_short | Low carbon effects of super large diameter shield directly cutting piles project: A case study in China |
| title_sort | low carbon effects of super large diameter shield directly cutting piles project a case study in china |
| topic | Shield tunnel Cutting pile GHG emission LCA evaluation Low-carbon effect |
| url | http://www.sciencedirect.com/science/article/pii/S2214509525000634 |
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