The Properties of Liquefiable Soil with Swedish Weight Sounding Test in BPTB (Agricultural Technology Research and Development Center) Office, Central Sulawesi

Abstract

An earthquake measuring 7.4 MW in Central Sulawesi on 28th of September 2018, triggered liquefaction in several locations, one of them namely the BPTP office in Sigi district. The liquefaction that occurs causes massive sand boiling around the building, and a settlement in the foundation. This study aims to determine and compare the properties of land affected and not affected by liquefaction based on the Swedish weight sounding test, as well as the potential for liquefaction at the BPTP office location. The study consisted of 2 testing methods, namely field testing was carried out using the Swedish weight sounding test equipment at 3 points on the affected soil and 3 points on the unaffected soil, and laboratory testing including sieve analysis testing and Atterberg limits for 18 soil samples. The results showed that the Nsw value on the affected soil is in the range 4.00 n/m - 238.10 n/m, the Nsw value on the unaffected soil is in the range 26.00 n/m - 303.03 n/m, and groundwater level data obtained from the JICA Survey for Disaster Information Collection in Indonesia 2020 is at a depth of 5.31 meters below ground surface. The first section in your paper