Liquefaction Potential Study Due to Strong Earthquake on Reclamation Land in Northern Jakarta

M.N. Fikri1, T.F. Fathani1*­, A. Rifa’i1, L.Z. Mase2

1Departement of Civil and Environmental Engineering, Universitas Gadjah Mada, Yogyakarta, INDONESIA

2Departement of Civil Engineering, Universitas Bengkulu, Bengkulu, INDONESIA

*Corresponding author: tfathani@ugm.ac.id

ABSTRACT

Determining geotechnical parameters for a site is a crucial step in geotechnical analyses and designs, especially in regions prone to seismic activity, namely Liquefaction Potential Index. This study aims to evaluate the liquefaction potential in a 63-hectare reclamation land in Northern Jakarta. Both a simplified method and a multiple-segment trapezoidal method are used to identify safety factors and potential liquefaction. The analysis utilizes the Standard Penetration Test and borehole data to establish soil property indices in the research area. The likelihood of liquefaction occurrence is assessed and mapped using linear distance weighting interpolation methods, along with historical earthquake data with a magnitude of Mw 7.5. The differences in the depth and thickness of sand layers in the research area lead to varying possibilities of liquefaction occurrences. The mapping results indicate no potential, marginal potential, and moderate potential are 53.26%, 37.42%, and 9.32% within the research site.

SNTI_Muharram_Nur_Fikri_Liquefaction-Potential-Study-Due-to-Strong-Earthquake-on-Reclamation-Land-in-Northern-Jakarta
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