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http://dx.doi.org/10.7843/kgs.2022.38.12.79

Investment Prioritization Method for Steep Slope Retaining Wall Considering the Disaster Risk and the Repair and Reinforcement Cost  

Choi, Jae-Soon (Dept. of Civil Engrg., Seokyeong Univ.)
Shin, Yean-Ju (Dept. of Civil Engrg., Seokyeong Univ.)
Baek, Woo-Hyun (Dept. of Civil Engrg., Seoultech Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.38, no.12, 2022 , pp. 79-89 More about this Journal
Abstract
Every summer in our country, an accident occurs, in which the retaining wall on a steep slope collapses due to torrential rain. According to the data on the results of steep slope risk assessment in 2019, over 780 retaining walls are below grade C; therefore, preparing for countermeasures is urgent. However, due to the limited budget for the repair and reinforcement of these retaining walls, it is necessary to discuss the investment prioritization. In this study, a prioritization method was proposed at the network and project levels along with the review of the revised criteria of disaster risk assessment in the steep slope retaining wall, and an application research in the network level was conducted for six retaining walls. Moreover, it is proposed that the priority index was determined by using the actual cost for repair and reinforcement in determination of the project level prioritization.
Keywords
Disaster risk assessment; Priority determination of network; Priority determination of project level; Retaining wall;
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  • Reference
1 Baek, J. N., Shin, C. G., Park, J. Y., and Hong, N. K. (2010), Suggestion for Maintenances of mesh gabions, 2010 KGS Spring National Conference, pp.1271-1278. 
2 Choi, J. S. (2019), A Study on Selection of Target Performance for Performance Evaluation and Maintenance of Retaining Wall in Korea, Journal of Korean Geotechnical Society, Vol.35, No.12, pp.111-121. 
3 Heo, B. Y., and Choi, W. J. (2012), Improvement In the Determination of the Investment Priority for Collapse Hazard Areas, Journal of the Korean Society of Hazard Mitigation, Vol.12, No.2, pp.115-119.    DOI
4 Kim, H. T., Park, J. Y., and Yoo. C. H. (2005), A Study on Optimal Reinforcing Type of Precast Retaining Wall Reinforced by Micropiles, Journal of Korean Geotechnical Society, Vol.22, No.11, pp.89-99. 
5 Lee, J. H., Choi, C. H., Kim, J. S., Han, D. G., Kim, D. H., and Kim, H. S. (2019), Evaluation of Disaster Prevention Capability Improved Through Investment of Recovery Cost, Journal of the Korean Society of Hazard Mitigation, Vol.19, No.3, pp.23-32.    DOI
6 KICT (2017), Development of Evaluation Techniques for Performance-based Management and Operation of SOC facilities in Korea, KAIA National R&D project, No.11-1613000-001953-01. 
7 Kim, K. S., Kim, H. R., and Park, S. K. (2005), A Study on the Priority Ranking Algorithm for Bridge Management at Network Level, Journal of Korean Concrete Institute, Vol.17, No.3, pp. 323-328. Journal of the Korean Society of Hazard Mitigation, Vol. 12, No.4, pp.77-84.    DOI
8 KISTEC (2018), The Safety Control and Maintenance of Establishments. 
9 Park, J. K., Lim, Y. T., Lee, J., Eom, J. K., and Moon, D. S. (2009), High-speed Rail Infrastructure Priority Decision Making on Level of Design Speed by Rail Network Design Problem, Journal of the Korean Society for Railway, Vol.12, No.3, pp.427-436. 
10 Song, Y. K., Park, D. K., Son, Y. J., and Kim, T. H. (2012), A Study on the Improvement of Stability Checklist by Analyzing the Evaluation Element For Steep Slopes. 
11 Yoo, C. S., Jeon, H. Y., Jung, H. Y., and Jung, H. S. (2005), Geosynthetic Reinforced Segmental Retaining Wall Failure During Heavy Rainfall - A Case Study, Journal of Korean Geotechnical Society, Vol.21, No.4, pp.135-143. 
12 www.fms.or.kr : Korean FMS system KISTEC. 
13 www.yna.co.kr : photos of retaining wall collapse.