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Potential for Liquefaction After The 2018 Pasigala Earthquake Due to Changes in Hydraulic Conductivity Characteristics and Soil Properties in the Gumbasa Irrigation Rice Field Area

Andi Rivaldy Parampasi, Dr. Ir. Sukiman Nurdin, ST., M.Sc, Dr. Ir. Astri Rahayu, ST., MT.

2026enliquefactionearthquakehydraulic conductivitysoil propertiesinfiltrationirrigation

Abstract

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ABSTRACT: On September 28, 2018, an earthquake shook the Palu–Sigi–Donggala (Pasigala) region, causing extensive structural damage and triggering liquefaction in several areas, including irrigated rice fields. Liquefaction is a process in which non-cohesive soils change from solid to liquid behavior due to increased air and pore water pressure. This study aims to determine the post-earthquake liquefaction potential in the Gumbasa irrigation paddy field area and to evaluate changes in soil infiltration behavior caused by altered soil characteristics. Liquefaction potential was analyzed based on soil grain characteristics and liquefaction safety factors, while hydraulic conductivity was evaluated using the Horton method. Field and laboratory investigations show that Petobo–Jono-Oge, Sibowo–Sidondo, and Sidera Villages have the lowest changes in hydraulic conductivity and are underlain by clayey soils with dense conditions, resulting in no significant liquefaction potential. In contrast, Pandere–West Sibalaya and Maranata Villages exhibit high hydraulic conductivity with sandy soils of low density, indicating a significant liquefaction potential and higher vulnerability under future seismic loading.

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Cite This Work

@article{8ad38202-d23b-46c8-8a39-6a8eab45c677,
  title={Potential for Liquefaction After The 2018 Pasigala Earthquake Due to  Changes in Hydraulic Conductivity Characteristics and Soil Properties in  the Gumbasa Irrigation Rice Field Area },
  author={Andi Rivaldy Parampasi and Dr. Ir. Sukiman Nurdin and ST. and M.Sc and Dr. Ir. Astri Rahayu and ST. and MT.},
  year={2026},
  language={en}
}
TY  - JOUR
TI  - Potential for Liquefaction After The 2018 Pasigala Earthquake Due to  Changes in Hydraulic Conductivity Characteristics and Soil Properties in  the Gumbasa Irrigation Rice Field Area 
AU  - Andi Rivaldy Parampasi
AU  - Dr. Ir. Sukiman Nurdin
AU  - ST.
AU  - M.Sc
AU  - Dr. Ir. Astri Rahayu
AU  - ST.
AU  - MT.
PY  - 2026
LA  - en
ER  -

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