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http://dx.doi.org/10.14481/jkges.2020.21.12.29

Analysis of Damage Cases of Reinforced Earth Retaining Walls for Expressways at the Time of Introduction 30 Years  

Do, Jongnam (Safety&Disaster Prevention Research Division, Korea Expressway Coporation Research Institute)
Kim, Nagyoung (Safety&Disaster Prevention Research Division, Korea Expressway Coporation Research Institute)
Kim, Myoungil (Department of Civil and Environmental Engineering, Hanyang University)
Park, Doohee (Department of Civil and Environmental Engineering, Hanyang University)
Publication Information
Journal of the Korean GEO-environmental Society / v.21, no.12, 2020 , pp. 29-34 More about this Journal
Abstract
Reinforced earth retaining walls were developed in France in the 1970s and began to be applied in earnest to Korea in the 1990s. And now, about 1,300 reinforced soil retaining walls support the embankment of highways and bridge connections. The reinforced earth retaining wall construction technology has evolved day by day, and in recent years the reinforced earth retaining wall itself has been developed and introduced as a demonstration. However, various damages are constantly occurring in the reinforced earth retaining walls constructed throughout the highway. The cause of this was analyzed as minor defects in the design, construction, and maintenance stages. The solution for this is a change in perception of the importance of each individual process, but this does not form overnight. In this study, 30 years have passed since the introduction of the reinforced soil retaining wall on the highway, the damage cases were analyzed and categorized that have occurred in the reinforced soil retaining wall so far, and attempted to present a confrontation. As a result, the damage occurring on the reinforced soil retaining wall was divided into 10 types, and the causes and countermeasures in the design, construction, and maintenance stages for each were derived.
Keywords
Reinforced earth retaining wall; Damage cases; Causes and countermeasures; Maintenance;
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