地铁盾构渣土资源化碳排放强度与减碳潜力研究

李伟; 陈刚; 曹太波; 杨芳盛; 陈坤阳; 吴环宇

doi:10.13205/j.hjgc.202307008

地铁盾构渣土资源化碳排放强度与减碳潜力研究

doi: 10.13205/j.hjgc.202307008

1. 中国建筑一局(集团)有限公司华南区域公司, 广东深圳 518002;
2. 深圳大学土木与交通工程学院, 广东深圳 518061

基金项目:

广东省科技计划项目-广东省自然科学基金面上项目"基于人工智能的建筑废弃物固定消纳场安全风险评估研究"（2022A1515011662）；技术开发（合作）课题"深圳市城市轨道交通13号线二期（北延）工程土建四工区隧道施工盾构渣土处理碳减排研究"（2020-13-01FT055）

详细信息

作者简介:
李伟(1973-),男,高级工程师,主要研究方向为绿色建筑、固废资源化。hnliwei@cscec.com

通讯作者:
吴环宇(1992-),男,助理教授,主要研究方向为可持续建设。wuhuanyu@szu.edu.cn

计量
- 文章访问数: 74
- HTML全文浏览量: 44
- PDF下载量: 4
- 被引次数: 0
出版历程
- 收稿日期: 2022-11-27

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

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

摘要

摘要: 盾构渣土资源化利用是地铁建设领域响应国家"双碳"战略的重要举措。为科学量化地铁盾构渣土利用与处置的碳排放强度及减碳潜力，基于LCA方法构建了地铁盾构渣土利用与处置碳排放评价方法，以深圳地铁13号线某隧道区间为例，梳理了盾构渣土资源化利用工艺和系统，厘清了渣土现场资源化利用的管理路径，量化了渣土利用与处置的碳排放强度及减碳潜力。结果表明：案例中渣土资源化利用减碳总量约为4243.13 t CO₂e；制备1 m³再生免烧砖可带来239.26 kg CO₂e减碳效益，填埋1 m³渣土约产生89.42 kg CO₂e。未来深圳地铁建设若均采用案例提供的盾构渣土高效资源化利用方式，预计到2035年可累计实现约77万t CO₂e的减排效益。该研究结果可为政府部门科学制定地铁盾构渣土管理政策，推广地铁盾构渣土资源化利用提供理论方法及参考数据。
- 地铁盾构渣土 /
- 资源化利用 /
- 生命周期评价 /
- 碳排放强度 /
- 减碳潜力
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

HTML全文

参考文献(20)

[1]	DING Z K, ZHU M L, TAM V W Y, et al.A system dynamics-based environmental benefit assessment model of construction waste reduction management at the design and construction stages[J].Journal of Cleaner Production, 2018, 176:676-692.
[2]	YUAN H P.A SWOT analysis of successful construction waste management[J].Journal of Cleaner Production, 2013, 39:1-8.
[3]	YE G, YUAN H P, SHEN L Y, et al.Simulating effects of management measures on the improvement of the environmental performance of construction waste management[J].Resources, Conservation and Recycling, 2012, 62:56-63.
[4]	高杨,卫童瑶,李滨,等.深圳"12·20"渣土场远程流化滑坡动力过程分析[J].水文地质工程地质,2019,46(1):129-138 ,147.
[5]	DUAN H B, MILLER T R, LIU G, et al.Construction debris becomes growing concern of growing cities[J].Waste Management, 2019, 83:1-5.
[6]	YU B, WANG J Y, LI J, et al.Quantifying the potential of recycling demolition waste generated from urban renewal:a case study in Shenzhen, China[J].Journal of Cleaner Production, 2020.https://doi.org/10.1016/j.jclepro.2019.119127.
[7]	LI J R, LIANG J L, ZUO J, et al.Environmental impact assessment of mobile recycling of demolition waste in Shenzhen, China[J].Journal of Cleaner Production, 2020, 263:121371.https://doi.org/10.1016/j.jclepro.2020.121371.
[8]	BORGHI G, PANTINI S, RIGAMONTI L.Life cycle assessment of non-hazardous Construction and Demolition Waste (CDW) management in Lombardy Region (Italy)[J].Journal of Cleaner Production, 2018, 184:815-825.
[9]	BRAGA A M, SILVESTRE J D, de BRITO J.Compared environmental and economic impact from cradle to gate of concrete with natural and recycled coarse aggregates[J].Journal of Cleaner Production, 2017, 162:529-543.
[10]	FOŘT J, ČERNY R.Transition to circular economy in the construction industry:environmental aspects of waste brick recycling scenarios[J].Waste Management, 2020, 118:510-520.
[11]	ZHANG N, DUAN H B, SUN P W, et al.Characterizing the generation and environmental impacts of subway-related excavated soil and rock in China[J].Journal of Cleaner Production, 2020.1-119242.11.https://doi.org/10.1016/j.jclepro.2019.119242.
[12]	郭卫社, 王百泉, 李沿宗, 等.盾构渣土无害化处理、资源化利用现状与展望[J].隧道建设(中英文),2020,40(8):1101-1112.
[13]	陈坤阳, 王家远, 喻博, 等.地铁工程余泥渣土环境影响研究[J].环境工程,2022,40(2):191-198.
[14]	CHEN K Y, WANG J Y, YU B, et al.Critical evaluation of construction and demolition waste and associated environmental impacts:a scientometric analysis[J].Journal of Cleaner Production, 2021, 287:125071.https://doi.org/10.1016/j.jclepro.2020.125071.
[15]	International Organization for Standardization.Environmental Management:Life Cycle Assessment, Principles and Framework[M].ISO, 2006,14040.
[16]	International Organization for Standardization.Environmental Management:Life Cycle Assessment, Requirements and Guidelines[M].Geneva, Switzerland:ISO, 2006.
[17]	中华人民共和国住房和城乡建设部.建筑碳排放计算标准:GB/T 51366-2019[S].北京:中国建筑工业出版社, 2019:21-37.
[18]	陈坤阳, 王家远, 张育雨, 等.地铁工程余泥渣土产生量估算及空间流向分析[J].环境卫生工程,2021,29(4):14-21.
[19]	张宁.地铁工程余泥渣土产生量估算方法及其优化管理方案研究[D].深圳:深圳大学, 2020.
[20]	欧阳磊.基于碳排放视角的拆除建筑废弃物管理过程研究[D].深圳:深圳大学,2016.