Axial and lateral bearing capacity assessment of bored piles on medium-dense sand and liquefiable potential based on numerical simulation

Abstract Liquefaction on bridges can cause structural failure due to loss of soil strength. The Showa Bridge that collapsed in 1964 Niigata earthquake was caused by buckling piles as the layer liquefied and friction losses. In addition, there a case Palu IV bridge collapse Indonesia during recent 2018 earthquake, which indicated have been affected earthquakes liquefaction. This study examines reliability bored pile foundation Kretek 2 Bantul Regency, Yogyakarta Special Region Province, for axial lateral bearing capacity. research method uses structure interaction 3D numerical simulation Midas Civil GTS NX modeling. driving analysis static loading test were also conducted, be compared MIDAS results. For modeling result, is an increase moment forces but decrease shear While displacement increases significantly liquefaction state, performance still stable. Therefore, kretek sufficient support load both state state.