Improved Vulnerability Assessment Table for Retaining Walls and Embankments from a Working-Level Perspective in Korea

Jaejoon Lee, Hyunji Lee, Hongsik Yun, Chol Kang and Moonsoo Song
Additional contact information
Jaejoon Lee: Interdisciplinary Program in Crisis, Disaster and Risk Management, Sungkyunkwan University, Suwon 2066, Korea
Hyunji Lee: Interdisciplinary Program in Crisis, Disaster and Risk Management, Sungkyunkwan University, Suwon 2066, Korea
Hongsik Yun: School of Civil, Architectural Engineering & Landscape Architecture, Sungkyunkwan University, Suwon 2066, Korea
Chol Kang: Societal Disaster Response Policy Division, Ministry of the Interior and Safety, Sejong 30128, Korea
Moonsoo Song: Interdisciplinary Program in Crisis, Disaster and Risk Management, Sungkyunkwan University, Suwon 2066, Korea

Sustainability, 2021, vol. 13, issue 3, 1-24

Abstract: Climate change can lead to unpredictable slope collapse, which causes human casualties. Therefore, Korea has devoted significant effort to the management of slope disasters. The Ministry of the Interior and Safety of Korea, which oversees the safety of the nation’s people, has allocated a four-year budget of $557 million to investigate, assess, and maintain steep slope sites. However, there have been fatalities caused by steep slope site evaluations based on inadequate knowledge and a single retaining walls and embankments (RW&E) assessment table. Therefore, the assessment table for RW&E-type steep slopes needs to be improved in terms of its accuracy, simplicity, and ease of use. In this study, domestic and global evaluation methods were reviewed, problems associated with the existing RW&E assessment table were identified, and a focus group interview was conducted. The RW&E assessment table was improved through an indicator feasibility survey and analytic hierarchy processing. The improved assessment table was categorized from one to four classifications to reduce the ambiguity of the evaluation: concrete, reinforced soil-retaining walls, stone embankments, and gabions. This study will provide the sustainability of slope safety and serve as a reference for classification and evaluation criteria across all national institutions that conduct RW&E evaluations.

Keywords: disaster management; hazard assessment table; retaining wall; steep slope; analytical hierarchic process (AHP) (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/13/3/1088/pdf (application/pdf)
https://www.mdpi.com/2071-1050/13/3/1088/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:13:y:2021:i:3:p:1088-:d:484489

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().