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Analysis of Environmental Load by Work Classification for NATM Tunnels
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 Title & Authors
Analysis of Environmental Load by Work Classification for NATM Tunnels
Lee, Ju-hyun; Shim, Jin Ah; Kim, Kyong Ju;
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 Abstract
Many countries are trying to reduce a greenhouse gas to step up their fight against climate change. There are many studies related to building only for reducing a greenhouse gas in construction area but studies related to reducing a comprehensive environmental load including various pollutants that affects the global environment are lacking. This study aims to analyse the characteristics of environmental load by work type for tunnel projects. Analysis showed that seven work types, including lining concrete, shotcrete, tunnel portal and open-cut tunnel work, etc., are representative works generated environmental load. These seven works represent 89.22 percent of total environmental load. In addition, comparison results of environmental load per tunnel`s length by work type showed that a major factor of environmental load is caused by a tunnel portal and open-cut tunnel work with relatively short length (excavation length). And lining concrete and shotcrete work are larger than any other environmental load with tunnel`s total length. It is expected that the result of this study will be used to make a estimation model for environmental load using approximate quantity survey of representative work types in the early stage of tunnel design. And it will be play a considerable role in establishing of environment management plan for sustainable infrastructure construction.
 Keywords
NATM tunnel;Environmental load;Life cycle assessment;Life cycle inventory;
 Language
Korean
 Cited by
1.
Environmental load estimating model of NATM tunnel based on standard quantity of major works in the early design phase, KSCE Journal of Civil Engineering, 2017  crossref(new windwow)
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