Stability Analysis of Toll Road Embankment Induced by Liquefaction In Klaten Regency Based On FEM Numerical Simulation

Abstract The construction of toll roads in Klaten Regency supports community connectivity increasing economic growth and accessibility to tourist areas around the southern part Java Island. location this study is Polanharjo District, Regency. area has geological conditions, sandy volcanic ash, shallow groundwater levels accompanied by a history earthquakes that have occurred greater than Mw. 5.0. These three things are triggers for liquefaction. This discusses stability analysis road embankments at STA. 10+724 on Solo - Yogyakarta YIA Kulon Progo Toll Road due potential liquefaction reaching 14 meters. embankment placed ground surface, which with height up 5 Calculate safety factor using numerical simulation finite element (Plaxis v.8.2 software) static pseudostatic analysis. Numerical calculations show still safe (SF: 1.989 > 1.5) 1.912 1.1).