二つの橋台建設手法におけるライフサイクル炭素フットプリント比較：ケーススタディ
Lifecycle Carbon Footprint Comparison of Two Abutment Construction Approaches: A Case Study (原題)
Yang Yang, Chao Xu, Ming-Ming Chen, C. Du, Y. Meng
🤖 gxceed AI 要約
日本語
ジオシンセティック補強土統合橋梁システム（GRS-IBS）と従来の柱支持橋台を同一高速道路区間で比較し、原料から完成までの炭素排出量を排出係数法で算出した。GRS-IBSの総炭素排出量は従来工法の57%に留まり、大幅な削減効果が示された。排出の大部分は材料製造段階が占め、施工段階が続き、輸送の寄与は最小であった。
English
This study compares the cradle-to-completion carbon footprint of a geosynthetic reinforced soil-integrated bridge system (GRS-IBS) against a conventional column-supported abutment on the same expressway. Using the emission factor method, GRS-IBS total emissions were only 57% of the conventional approach. Material production dominated emissions, followed by construction, with transport contributing least.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
建設分野のScope 3算定・低炭素工法選定に資する。インフラ発注者や建設企業が有報・統合報告書で建設段階の排出削減を説明する際の定量的根拠となりうる。
In the global GX context
Adds empirical evidence on embodied carbon in infrastructure construction, relevant to Scope 3 accounting and low-carbon procurement under frameworks like ISSB and CSRD. Supports transition planning for the construction sector.
👥 読者別の含意
🔬研究者:建設資材のライフサイクル炭素評価手法と工法比較の実証例を提供する。
🏢実務担当者:低炭素な橋梁工法の選定によりScope 3排出削減とコスト最適化を検討できる。
🏛政策担当者:公共インフラ調達で低炭素工法を促進する際の定量的根拠として参考になる。
📄 Abstract（原文）
Geosynthetic materials provide innovative solutions for geotechnical engineering challenges while demonstrating significant advantages in energy conservation and emission reduction. In recent years, geosynthetic reinforced soil-integrated bridge system (GRS-IBS) has gained widespread adoption for small to medium-span bridges. By directly supporting the beam seat on the GRS abutment and seamlessly integrating the roadway into the superstructure without joint interfaces, the GRS-IBS effectively eliminates “bridgehead jumping”. A comparative analysis was conducted in this study between the GRS-IBS and a conventional column-supported abutment bridge located in adjacent sections of the same expressway. Carbon footprints of both construction schemes from cradle to completion were meticulously calculated using the carbon emission factor method. Special attention was paid to the embodied carbon emission of geosynthetics from raw materials to final production. Results reveal that the total carbon emissions of the GRS-IBS are only 57% of those of the conventional column abutment bridge, highlighting its substantial emission reduction potential. The material production stage accounts for the largest share of carbon emissions, followed by the construction stage, while transportation of building materials contributes the least.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1051/e3sconf/202674004023first seen 2026-09-19 05:43:09 · last seen 2026-09-22 05:12:00
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