Assessing carbon dioxide emissions for long-span cable stay bridge of railway construction project
鉄道建設プロジェクトにおける長大斜張橋の二酸化炭素排出量評価 (AI 翻訳)
Panithi Nakhonthong, Surangkana Trangkanont, Preenithi Aksorn
🤖 gxceed AI 要約
日本語
タイの鉄道用斜張橋建設における温室効果ガス排出量をCO2換算で算定。工種別（ボーリング杭、基礎、柱・橋頭、塔・セグメント、PC鋼線・ケーブル）に排出量を分類し、建設資材生産が全体の89%を占めることを明らかにした。総排出量は約10,144トン-CO2eq、1kmあたり29,837トン-CO2eq。
English
This study calculates greenhouse gas emissions (CO2-eq) from the construction of a double-track railway cable-stay bridge over the Mae Klong River in Thailand. Emissions are classified by work type, showing that pylon and segment work accounts for 36.0% of total emissions, followed by bored piles (23.0%) and footing (18.0%). The majority (89.0%) comes from construction material production.
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
本論文は、鉄道インフラ建設における温室効果ガス排出量の実態を工種別に明らかにしており、日本の鉄道事業者や建設会社がSSBJ対応やサプライチェーン排出量算定を行う際の参考事例となる。特に関東圏や東海道新幹線などの大規模橋梁建設プロジェクトで同様の算定手法が応用可能である。
In the global GX context
This paper provides a detailed emissions breakdown for a specific infrastructure project, offering empirical data that can inform global disclosure frameworks like ISSB and CDP for the construction sector. While geographically specific, the methodology (cradle-to-gate and gate-to-gate) and findings on material production dominance are widely applicable to transport infrastructure decarbonization.
👥 読者別の含意
🔬研究者:This case study provides detailed emission factors by work type for a cable-stay bridge, useful for life-cycle assessment (LCA) databases and infrastructure carbon accounting research.
🏢実務担当者:The breakdown of emissions by construction activity (pylon, boring, etc.) helps project managers identify high-emission phases and prioritize material selection or method improvements.
🏛政策担当者:The finding that material production accounts for 89% of emissions reinforces the need for green procurement policies and low-carbon material standards in large infrastructure projects.
📄 Abstract（原文）
The purpose of this study was to assess the quantity of greenhouse gas emissions associated with the long-span cable stay bridge of railway construction project. The amount of greenhouse gas in term of carbon dioxide equivalent (CO2-eq) emission was calculated from the construction project of a double-track railway cable stay bridge across the Mae Klong River in Thailand. Then, the results of the calculation were classified according to work types such as bored pile, foundation, column and pier head, pylon and segment, pre-stressed wire and cable. The study also included the emission of machinery and material transportation on the site, from cradle to gate and gate to gate. Both national and international database of carbon dioxide emissions coefficients were applied. The results showed that total CO2-eq emission emit 10,144,522 kg CO2-eq or 29,837 tons CO2-eq per kilometer. The types of work that emit the most carbon dioxide is pylon and segment which accounted for 36.0%. Meanwhile, the CO2-eq emission from bored piles, footing, column and pier head, prestressed wire and cable, and transportation of machinery and material within site accounted for 23.0%, 18.0%, 10.0%, 9.5%, and 3.5%, respectively. To sum up, the CO2-eq emission is caused by up to 89.0% of construction materials production.
🔗 Provenance — このレコードを発見したソース
- crossref https://doi.org/10.64960/easr.2026.262469first seen 2026-06-20 06:50:42 · last seen 2026-06-21 05:35:49
🔔 こうした論文の新着を逃したくない方は キーワードアラート に登録（無料・3キーワードまで）。
gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。