基于LCA的高速公路建设全过程碳排放核算

黄山倩; 黄学文; 高硕晗; 卢春颖; 车承志; 孔亚平

doi:10.16503/j.cnki.2095-9931.2022.06.008

交通运输研究 ›› 2022, Vol. 8 ›› Issue (6) : 72-80. DOI: 10.16503/j.cnki.2095-9931.2022.06.008

基于LCA的高速公路建设全过程碳排放核算

黄山倩 ¹ ,
黄学文 ² ,
高硕晗 ¹ ,
卢春颖 ¹ ,
车承志 ² ,
孔亚平 ¹

作者信息 +

Carbon Emission Calculation of Whole Expressway Construction Phase Based on LCA Theory

HUANG Shan-qian ¹ ,
HUANG Xue-wen ² ,
GAO Shuo-han ¹ ,
LU Chun-ying ¹ ,
CHE Cheng-zhi ² ,
KONG Ya-ping ¹

Author information +

文章历史 +

摘要

为加强高速公路建设碳核算，给“双碳”背景下公路建设行业的碳减排提供理论支撑，采用基于排放清单的过程生命周期评价分析方法，探究高速公路建设全过程的碳排放特征，明确核算系统边界和分析流程，提出碳排放量核算模型和碳排放强度指数，并选择新建高速公路典型路段进行碳排放量核算。研究结果显示，该典型路段建设全过程碳排放总量和碳排放强度分别是146.8万tCO₂e、1.63万tCO₂e/km，碳排放总量中88.6%集中在材料生产阶段，道路施工阶段和材料运输阶段分别占7.9%, 3.5%。在所有单位工程中，超过90%的碳排放量来源于交叉工程、路基工程和桥涵工程，其中交叉工程产生的碳排放量最高，桥涵工程的碳排放强度最高。此外，筑路材料碳排放主要来源为钢材、水泥和生石灰等，运输或施工机械碳排放主要来源为自卸车、推土机、拌和机。因此，在高速公路建设时需重点关注上述筑路材料和施工机械的节能减排技术措施，以获得最大的节能降碳效益。

Abstract

In order to strengthen the carbon calculation of expressway construction and provide theoretical basis for carbon emission reduction in the road construction industry under the background of "carbon peaking and carbon neutrality", this study proposed a carbon emission calculation model and carbon emission intensity index via adopting the process life cycle analysis method based on emission inventory, exploring the carbon emission characteristics of the whole process of expressway construction, and clarifying the boundary of calculation system and analysis process. The typical section of newly-built expressway was selected for carbon emission calculation. The research results showed that the total carbon emission and carbon emission intensity of this typical road section in the whole process of highway construction were 1.468 million tCO₂e and 16 300tCO₂e/km, 88.6% of the total carbon emission was concentrated in the material production stage, while the road construction stage and material transportation stage accounted for 7.9% and 3.5% respectively. Among all the unit projects, more than 90% of the carbon emissions came from the intersection project, subgrade project, and bridge and culvert project, among which the intersection project generated the highest carbon emissions while the bridge and culvert project had the highest carbon emission intensity. In addition, carbon emissions from road construction materials mainly came from steel, cement and quicklime, while carbon emissions from construction transportation or machinery mainly came from dump trucks, bulldozers, mixers. In order to obtain the maximum energy-saving and carbon-reducing benefits, it is necessary to focus on the energy-saving and emission-reduction technical measures of above-mentioned road construction materials and machinery during the expressway construction process.

导出引用

黄山倩, 黄学文, 高硕晗, 等. 基于LCA的高速公路建设全过程碳排放核算[J]. 交通运输研究. 2022, 8(6): 72-80 https://doi.org/10.16503/j.cnki.2095-9931.2022.06.008

HUANG Shan-qian, HUANG Xue-wen, GAO Shuo-han, et al. Carbon Emission Calculation of Whole Expressway Construction Phase Based on LCA Theory[J]. Transport Research. 2022, 8(6): 72-80 https://doi.org/10.16503/j.cnki.2095-9931.2022.06.008

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基金

中央级公益性科研院所基本科研业务费项目(20190613)

交通运输行业重点科技项目(2021-MS5-131)

安徽省交通控股集团科技项目(JKKJ-2020-06)

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收稿日期	出版日期
2022-09-13	2022-12-25
发布日期
2023-01-17

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