Liquefaction Mitigation of Ramp On Kretek 2 Bridge

Abstract The Kretek 2 Bridge was built over the Opak River where there is an active fault. According to bore log data and embankment site analysis, potential for liquefaction at a depth of 0 - 3 meters. Due space limitations, ramp bridge must be able stand upright. An alternative treatment that can implemented in this condition reinforce with Mechanically Stabilized Earth Wall system. Analysis using method Idriss Boulanger. application planned MSE wall carried out based on external, internal, global stability dynamic conditions subgrade after replacing detected layer potential. calculating lateral pressure caused by earthquake uses pseudostatic method. soil replacement meets requirements under solution mitigate increase bearing capacity limitation area problems. Reinforcement friction tie granular gets good results calculation safety factor breaking, pull out, overturning, sliding.