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http://dx.doi.org/10.12814/jkgss.2017.16.4.021

Behavior of Full Scaled Geobag Retaining Wall Structure by Field Pilot Test  

Shin, Eun-Chul (Dept. of Civil and Environment Enginnering, Incheon National Univ.)
Park, Kyung-Won (Dept. of Civil and Environment Enginnering, Incheon National Univ.)
Shin, Hui-su (Dept. of Civil and Environment Enginnering, Incheon National Univ.)
Ham, Kyung-Won (Dept. of Power Transmission Laboratory, KEPCO)
Publication Information
Journal of the Korean Geosynthetics Society / v.16, no.4, 2017 , pp. 21-31 More about this Journal
Abstract
Geobag method is an eco-friendly method to minimize the impact on the environment in the construction of retaining wall structure as a kind of geosynthetic reinforced retaining walls. In this study, evaluated behavior of full scaled geobag retaining wall about four different types of geobag retaining walls, that is, non-compacted geobags wall, compacted geobag wall, combination of longitudinal and transversal laied geobags wall, gabion and geobag wall were constructed in the field with instrumentation. Based on the results of field measurement, transversal layered geobag wall for non-compacted case was displaced 30% more than that of mixed gabion wall. Also, the more than 2m geobag walls without reinforcement at the backfill area are turned out to be unstable in terms of wall displacement. On the one hand, the distribution of the earth pressure for all geobag retaining walls sites show within the range of Rankine's and Coulomb's earth pressure after construction. But after intensity rainfall, the transversal laied geobag walls significantly increment of soil pressure. The geobag walls which constructed in the way of mixed wall systems such as gabion and geobag, longitudinal and transversal laied geobags are much stable with comparison of transversal laied geobag wall.
Keywords
Geobag; Retaining wall; Earth pressure; Field pilot test; Horizontal displacement; Stability;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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