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Excavation Method Determination of Earth-Retaining Wall for Sustainable Environment and Economy: Life Cycle Assessment Based on Construction Cases in Korea

Author

Listed:
  • Youngman Seol

    (Department of Civil Engineering, Chung-Ang University, 84 Heukseok-Ro, Dongjak-gu, Seoul 06974, Korea)

  • Seungjoo Lee

    (NEO-TRANS Co., Ltd., 33 Daewangpangyo-Ro, 606 Beon-Gil, Bundang-Gu, Seongnam-Si, Gyeonggi-do 13524, Korea)

  • Jong-Young Lee

    (School of Civil and Environmental Engineering, Urban Design and Studies, Chung-Ang University, 84 Heukseok-Ro, Dongjak-gu, Seoul 06974, Korea)

  • Jung-Geun Han

    (School of Civil and Environmental Engineering, Urban Design and Studies, Chung-Ang University, 84 Heukseok-Ro, Dongjak-gu, Seoul 06974, Korea
    Department of Intelligent Energy and Industry, Chung-Ang University, 84 Heukseok-Ro, Dongjak-gu, Seoul 06974, Korea)

  • Gigwon Hong

    (Department of Civil and Disaster Prevention Engineering, Halla University, 28 Halladae-gil, Wonju-si, Gangwon-do 26404, Korea)

Abstract

This study describes life cycle assessment (LCA) results of the excavation depth and ground condition of a medium-sized excavation ground in order to examine the effect of construction methods on environmental and economic feasibility for an earth-retaining wall. LCA is conducted in consideration of eight environmental impact categories according to the construction stage of the earth-retaining wall. In addition, the environmental cost of construction method for the earth-retaining wall was calculated, and its selection criteria were analyzed based on the calculation results. The evaluation results of the environmental load of construction methods for the earth-retaining wall show that the H-Pile+Earth plate construction method has low economic efficiency because the construction method significantly increased the environmental load due to the increased ecological toxicity. The environmental load characteristics have a greater effect on the selection of construction methods in sandy soil than in composite soil when the excavation depth is the same. The evaluation result of the environmental cost of the construction methods for the earth-retaining wall shows that the environmental cost increased as the excavation depth increased, and the sandy soil conditions have higher environmental costs than complex soil conditions.

Suggested Citation

  • Youngman Seol & Seungjoo Lee & Jong-Young Lee & Jung-Geun Han & Gigwon Hong, 2021. "Excavation Method Determination of Earth-Retaining Wall for Sustainable Environment and Economy: Life Cycle Assessment Based on Construction Cases in Korea," Sustainability, MDPI, vol. 13(5), pages 1-21, March.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:5:p:2974-:d:513500
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    References listed on IDEAS

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    1. Wen-Hsien Tsai & Sin-Jin Lin & Ya-Fen Lee & Yao-Chung Chang & Jui-Ling Hsu, 2013. "Construction method selection for green building projects to improve environmental sustainability by using an MCDM approach," Journal of Environmental Planning and Management, Taylor & Francis Journals, vol. 56(10), pages 1487-1510, December.
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    Cited by:

    1. Sunkuk Kim, 2021. "Technology and Management for Sustainable Buildings and Infrastructures," Sustainability, MDPI, vol. 13(16), pages 1-3, August.
    2. Deborah Arduin & Lucas Rosse Caldas & Rayane de Lima Moura Paiva & Fernando Rocha, 2022. "Life Cycle Assessment (LCA) in Earth Construction: A Systematic Literature Review Considering Five Construction Techniques," Sustainability, MDPI, vol. 14(20), pages 1-30, October.

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