| Title |
Analysis of Environmental Load by Work Classification for NATM Tunnels |
| Authors |
이주현(Lee, Ju-hyun) ; 심진아(Shim, Jin Ah) ; 김경주(Kim, Kyong Ju) |
| DOI |
https://doi.org/10.12652/Ksce.2016.36.2.0307 |
| Keywords |
NATM터널;환경부하;전과정평가;전과정목록 NATM tunnel;Environmental load;Life cycle assessment;Life cycle inventory |
| 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. |