生命週期評估應用於地下管推工法施工階段之碳盤查及其減碳策略

Life Cycle Assessment to Carbon Inventory During Pipe-Jacking Construction and Strategy for Reducing Carbon-Dioxide Emission

劉育成(Yu-Cheng Liou)

指導教授 ： 陳立憲

國立臺北科技大學/工程學院/土木與防災研究所/碩士(2013年)

https://doi.org/10.6841/NTUT.2013.00139

摘要

地球暖化造成氣候異常變遷，生物圈之生存環境危機也隨之而起。依2010年國際能源總署IEA/OECD之統計，台灣碳排位居世界20名，而營造產業之碳排放約佔全國總排放量三成。鑒於傳統土木營建管理注重在進度、成本、品質與安全管控，現應加入節能減碳之綠色議題。亦即營建工程除規劃時之工料計算分析設計，施工階段的能資耗用亦須慎重考慮，以降低全生命週期之工程之碳排放，以秦整全式之價值工程。本研究主要針對較高耗能之地下工程為例；盤查汙水系統之管推工程於施工過程中所需投入的機料與能資源，依綠建築CO2減量指標及國內學者碳盤查作計算尺之建立，加上廣為使用之生命週期評估軟體SimaPro 7.3.3，分析其排碳量及其造成之環境衝擊，進而依工項之調查其減碳策略。
研究以施工階段之桃園某一管推工程作案例調查，依工項之長深比與口徑比之不同，以施工規模為碳排量及環境衝擊作檢視分析，由本案盤查之碳排為291.13(tCO2e)，其中材料製造佔86%；而環境衝擊分析中，對「人體衝擊」影響較顯著因子為預鑄混凝土管(RCP)之接合鋼環與防蝕內襯鋁材；另對「資源耗用衝擊」分析為鋼材能源投入與施工期間之油耗為甚；除所需鋁材依規範建議不得變動外，本案之減碳策略擬由電弧爐鋼材作置換；及以爐石與飛灰作水泥用量之部分取代，其碳排可降低60%，環境衝擊值亦可降低63%，針對施工階段之工序與工項檢討其減碳策略之流程，冀能提供後續相關工程設計及施工之參佐。

關鍵字

生命週期 ； 碳盤查 ； 碳足跡 ； 環境衝擊

並列摘要

Climate change caused global warming, the biosphere living environment crisis has also ensued. According 2010 International Energy Agency IEA / OECD the statistics of Taiwan's carbon dioxide emissions world number 20, construction industry carbon emissions accounting for about three percent of total emissions. In view civil Construction Management focus on schedule, cost, quality and safety control, carbon reduction should now be added to the green issues. Except planning the construction engineering calculation analysis and design of engineering materials, construction stage should also be carefully considered consumption of energy and resources, reduce the project's life cycle carbon dioxide emissions, enhance value of construction. This study focuses on high energy-consuming Project for example of the underground; Interrogation and examination sewer system Pipe-Jacking Construction inputs required in the course of construction machinery, materials and energy resources, carbon dioxide reduction targets according to green building and domestic scholars carbon inventory for the establishment of the slide rule, plus the widespread use of life-cycle assessment software SimaPro 7.3.3 analyze its carbon emissions and their impact on the environment caused, and then investigation by the working project their carbon reduction strategies.
This study investigated the Taoyuan Pipe-Jacking Construction, project in accordance with the ratio of the length and depth and the diameter ratios of the different, in construction scale of carbon emissions and the environmental impact for analysis, the carbon emissions from the case Interrogation and Examination for the 291.13 (tCO2e), wherein accounted for 86% of the material; However, the analysis of the environmental impact of 'human impact' more notable factor affecting the RCP bonding steel ring and lined with aluminum corrosion; Also on the "Resource consumption of impact" analysis of energy inputs for the steel impact than the very; Also on the "Resource consumption of impact" analysis of energy inputs for the steel and even during the construction of the fuel consumption. Except aluminum other than by specification recommends may not change, the case of carbon reduction strategies proposed for replacement by the electric arc furnace steel; And used furnace slag and fly ash as a partial replacement of cement, its carbon emissions can be reduced by 60% the value of the environmental impact can be reduced 63%, against the construction phase of the project sequence and engineering projects to review its carbon reduction strategy process, hoping to provide follow-up related to engineering design and construction of reference.

並列關鍵字

Life Cycle Assessment,LCA ； Carbon Inventory ； Carbon Footprint ； Environmental Impact

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