Properties of Life Geosynthetics (LLGs) for slope stability analysis on soft ground

Abstract

Natural fiber reinforcing materials have been introduced recently in geotechnical applications known as "Limited Life Geosynthetics (LLGs)" to provide extra lateral restraint and prevent the embankment from failing by rotation or splitting failure of an embankment on soft clay. The study was aimed to investigate slope stability of embankment on soft clay reinforced with woven Kenaf LLGs. There are two types of Kenaf LLGs including coated and non-coated with polyurethane for reduction of water absorption and increase their life time. The PLAXIS finite element software based on phi-c reduction and Slide 5.0 software using Bishop simplified method based on limit equilibrium were obtained to analyses the stability of full-scale test embankment on soft ground. The results of factors of safety were compared to confirm the applications of Kenaf LLGs. Consequently, this study confirms that the Kenaf LLGs can be applied for short term applications in order to improve the stability of embankment on soft clay.