地铁屏蔽道工程的温室气体排放量化和减少途径:中国广州地铁的案例研究
Huanyu Wu1,2,3, Kehua Yang1,2, Kunyang Chen4,5,6
1College of Civil and Transportation Engineering, Shenzhen University, Shenzhen, 518060, China.
Environmental science and pollution research international
|August 31, 2024
概括
这项研究量化了地铁屏蔽道建设的温室气体 (GHG) 排放量,发现材料生产是最大的来源. 它提出了减少温室气体排放的途径,以实现更绿色的城市铁路发展.
科学领域:
- 环境工程 环境工程
- 土木工程 土木工程是指土木工程.
- 可持续建筑 可持续建筑
背景情况:
- 地铁屏蔽道工程是一个关键的施工技术.
- 有限的研究存在于温室气体 (GHG) 排放,特别是在这个领域.
- 越来越需要在城市铁路开发中解决环境影响.
研究的目的:
- 为了调查地铁屏蔽道施工期间的温室气体排放特征.
- 确定减少温室气体排放的潜在途径.
- 为可持续的城市铁路发展提供科学基础.
主要方法:
- 使用了生命周期评估 (LCA) 方法.
- 开发了用于施工阶段的温室气体排放量量化模型.
- 将结构分解成多个层次,以便进行详细分析.
- 来自一个案例项目的量化排放,以评估特征和减少潜力.
主要成果:
- 地铁防护道1公里的建设产生大约19294.28CO2eq.
- 物质生产占了大部分的排放 (89.05%).
- 主要结构 (工作轴和道段) 是主要的排放来源 (占总量的88.73%).
结论:
- 材料生产是地铁屏蔽道建设温室气体排放的主要因素.
- 对材料采购和主要结构部件的有针对性的减少至关重要.
- 结果支持在城市铁路项目中实现"碳峰值和碳中和"目标.
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