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首页> 外文期刊>Journal of green building >COMPARATIVE STUDY OF GREENHOUSE GAS EMISSIONS FROM HAND TUNNELING AND PILOT TUBE METHOD UNDERGROUND CONSTRUCTION METHODS
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COMPARATIVE STUDY OF GREENHOUSE GAS EMISSIONS FROM HAND TUNNELING AND PILOT TUBE METHOD UNDERGROUND CONSTRUCTION METHODS

机译：人工隧道法和地下管道法温室气体排放的比较研究

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摘要

e negative eu001dects of greenhouse gas (GHG) emissions, such as climate change and global warming, have become major environmental concerns, especially for thernconstruction industry, which is the third-highest source of GHG emissions amongrnindustrialized countries. Presently, underground utility projects are considered one of the most common types of construction, primarily due to aging infrastructure acrossrnNorth America and the subsequent rehabilitation of old pipelines and installationrnof new pipelines and facilities. Given the increasing demand being placed on thernindustry, the need to study airborne emissions associated with diu001derent underground construction technologies has risen, which will be helpful in selecting the most sustainablernunderground construction methods. u001fis study investigates pollutant emissionrnfrom two common trenchless methods used in underground construction, hand tunneling and pilot-tube method (PTM), through their varying GHG footprint sources and emissions measured by the United States Environmental Protection Agency (EPA). u001fis paper analyzes a case from Edmonton, Canada, in which bothrnPTM and hand tunneling were used by comparing the suggested indexes, includingrnHC, CO, NOx, PM, CO2, and SO2. In this case study, both methods were used inrnthe installation of a new 68-cm diameter (27 in.) clay sewer line with an overburdenrndepth of 12.9 m (42 ft) and length of 60 m (197 ft). Results indicated that thernamount of airborne emissions was reduced between 17% and 36% through the usernof PTM compared to the traditional hand tunnelling method.
机译：诸如气候变化和全球变暖等温室气体（GHG）排放的负eueudects已成为主要的环境问题，特别是对于建筑业而言，后者是工业化国家中温室气体排放量第三高的来源。目前，地下公用工程被认为是最常见的建筑类型之一，这主要是由于北美地区基础设施老化以及随后的旧管道修复以及新管道和设施的安装。鉴于对工业的需求不断增加，研究与地下地下建筑技术相关的空气传播排放的需求已经上升，这将有助于选择最可持续的地下建筑方法。 u001fis研究调查了地下建筑中使用的两种常见的非开挖方法，即手挖隧道法和先导管法（PTM），通过其变化的温室气体足迹源和美国环境保护署（EPA）测得的排放量来调查污染物的排放。 u001fis论文分析了一个来自加拿大埃德蒙顿的案例，该案例通过比较建议的指标（包括HC，CO，NOx，PM，CO2和SO2）同时使用了rnPTM和人工隧道技术。在本案例研究中，两种方法都用于安装新的直径为68厘米（27英寸）的粘土下水道管线，覆盖层深度为12.9 m（42英尺），长度为60 m（197英尺）。结果表明，与传统的手动隧穿方法相比，通过PTM的用户，空气传播的排放量减少了17％至36％。

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