CALCULATION AND ANALYSIS OF CARBON EMISSION IN CONSTRUCTION STAGE OF LOESS TUNNEL

WANG Lin; YANG Muyan; GAO Yuqiang

doi:10.13205/j.hjgc.202310013

Volume 41 Issue 10

Oct. 2023

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WANG Lin, YANG Muyan, GAO Yuqiang. CALCULATION AND ANALYSIS OF CARBON EMISSION IN CONSTRUCTION STAGE OF LOESS TUNNEL[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(10): 99-107,172. doi: 10.13205/j.hjgc.202310013

Citation:

WANG Lin, YANG Muyan, GAO Yuqiang. CALCULATION AND ANALYSIS OF CARBON EMISSION IN CONSTRUCTION STAGE OF LOESS TUNNEL[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(10): 99-107,172. doi: 10.13205/j.hjgc.202310013

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CALCULATION AND ANALYSIS OF CARBON EMISSION IN CONSTRUCTION STAGE OF LOESS TUNNEL

doi: 10.13205/j.hjgc.202310013

1. School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China;
2. Gansu Road & Bridge Construction Group, Lanzhou 730030, China

Received Date: 2023-04-23
Available Online: 2023-12-26

Abstract

Abstract

In order to provide the carbon emission data of the loess tunnel construction stage, seek the carbon emission reduction path of loess tunnel, and help realize the low-carbon construction of loess tunnel, we carry out the calculation and analysis of carbon emission during the construction stage of loess tunnel, which is of great significance. Taking the SJ Loess Tunnel as the research object, a life cycle assessment was used to calculate the carbon emission during the construction stage, the carbon emission characteristics were analyzed and summarized from the three aspects of the carbon emission source, time and space, and suggestions on carbon emissions reduction during the loess tunnel construction stage were put forward. The results showed that:1) carbon emission in the construction stage of SJ Loess Tunnel was 2.6769 million tons and carbon emission intensity was 60.16 t CO₂eq/m; 2) carbon emissions were highest in the stage of material production and processing. Cement and reinforcement were the key sources of carbon emissions in loess tunnels. Secondary lining, surrounding rock support, and temporary support were the top three subprojects in terms of carbon emissions in the construction stage. 3) The carbon emission intensity of loess tunnel was higher than that of the rock tunnel, and the carbon emission distribution of material energy and sub-projects was similar.
- loess tunnel,
- life cycle assessment,
- carbon emission intensity,
- carbon emission reduction,

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References(30)

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