CARBON EMISSION INTENSITY AND CARBON REDUCTION POTENTIAL IN RECYCLING AND DISPOSAL OF SUBWAY-RELATED SHIELD MUCK

LI Wei; CHEN Gang; CAO Taibo; YANG Fangsheng; CHEN Kunyang; WU Huanyu

doi:10.13205/j.hjgc.202307008

Volume 41 Issue 7

Jul. 2023

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2023 > 41(7): 53-60

LI Wei, CHEN Gang, CAO Taibo, YANG Fangsheng, CHEN Kunyang, WU Huanyu. CARBON EMISSION INTENSITY AND CARBON REDUCTION POTENTIAL IN RECYCLING AND DISPOSAL OF SUBWAY-RELATED SHIELD MUCK[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(7): 53-60. doi: 10.13205/j.hjgc.202307008

Citation:

LI Wei, CHEN Gang, CAO Taibo, YANG Fangsheng, CHEN Kunyang, WU Huanyu. CARBON EMISSION INTENSITY AND CARBON REDUCTION POTENTIAL IN RECYCLING AND DISPOSAL OF SUBWAY-RELATED SHIELD MUCK[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(7): 53-60. doi: 10.13205/j.hjgc.202307008

Citation:

LI Wei, CHEN Gang, CAO Taibo, YANG Fangsheng, CHEN Kunyang, WU Huanyu. CARBON EMISSION INTENSITY AND CARBON REDUCTION POTENTIAL IN RECYCLING AND DISPOSAL OF SUBWAY-RELATED SHIELD MUCK[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(7): 53-60. doi: 10.13205/j.hjgc.202307008

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CARBON EMISSION INTENSITY AND CARBON REDUCTION POTENTIAL IN RECYCLING AND DISPOSAL OF SUBWAY-RELATED SHIELD MUCK

doi: 10.13205/j.hjgc.202307008

1. South China Regional Company, China Construction First Bureau (Group) Co., Ltd., Shenzhen 518002, China;
2. College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518061, China

Received Date: 2022-11-27

Abstract

Abstract

The recycling of shield muck is an important measure in response to China's Carbon Peak and Carbon Neutrality goal in subway construction. In order to quantify the carbon emission intensity and emission reduction potential in the recycling and disposal of subway shield muck, an assessment method of carbon emission from the recycling and disposal of related subway shield muck was established, based on the LCA method. Taking a tunnel section of Shenzhen Metro Line 13 as an example, the process and system for the recycling of subway-related shield muck were sorted out, the management pathway for the recycling on-site muck was clarified, and the carbon emission intensity and carbon reduction potential of recycling and disposal muck were quantified. The results implied that shield muck recycling reduced 4243.13 t of CO₂e emission. The preparation of one cubic meter of recycled unburned brick can contribute 239.26 kg of carbon reduction benefits, while the landfill of one cubic meter of shield muck produces 89.42 kg of CO₂e. If the shield muck efficient recycling method provided by the case is utilized for Shenzhen Metro, an amount of 770000 tons of CO₂e carbon reduction benefits can be achieved by 2035. The study provides theoretical methods and data for the government to formulate the management policy of subway shield muck and promote the recycling of subway shield muck.
- subway shield muck,
- recycling and disposal,
- life cycle assessment,
- carbon emission intensity,
- carbon reduction potential

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References(20)

References

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