Re-liquefaction hazard evaluation in flow-slide affected area of Jono Oge, Central Sulawesi, Indonesia

Andiny, A N; Faris, Fikri; Adi, Agus Darmawan

doi:10.1088/1755-1315/861/5/052030

Cited by 8 publications

(11 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The earthquake-induced liquefaction played a significant role in initiating the slope failure in Jono Oge area. Andiny et al [8] evaluated the liquefaction potential in Jono Oge area using the simplified procedure SPT-based by Idriss-Boulanger method [12]. The SPT is a test process in the bottom of the borehole where a split-barrel sampler is driven a given distance after seating using a hammer weighting for each blow.…”

Section: Liquefaction Potential Analysismentioning

confidence: 99%

“…The analysis indicated the ground movement potential in varying scenarios in the second soil profile. The potentially liquefied soil layer was determined based on the liquefaction potential analysis of BH-4, BH-5, and BH-6 in the previous study by Andiny et al [8].…”

Section: Slope Stability Analysismentioning

confidence: 99%

“…In the preliminary study, many researchers analysed the flow-slide occurrence in Central Sulawesi several areas [3][4][5][6][7] and evaluated the re-liquefaction in flow-slide affected area of Jono Oge [8]. Soil aging and cementation are among the main factors that govern liquefaction because compared to the older soil deposits, newly deposited soil tends to be more susceptible to liquefaction [9].…”

Section: Introductionmentioning

confidence: 99%

“…Based on the re-liquefaction analysis by Andiny et al [8], the flow-slide affected area of Jono Oge has high to very high liquefaction potential in the west side of the irrigation canal to the former rural road and low liquefaction potential at the irrigation canal area. This study aims to evaluate the potential of the liquefaction-induced ground movement in Jono Oge based on the safety factor of slope stability.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Slope stability analysis during an earthquake in flow-slide affected area of Jono Oge

Andiny

Faris

Adi

2022

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

On September 28th, 2018, the earthquake with a moment magnitude (Mw) 7.5 due to strike-slip Palu-Koro Fault in Central Sulawesi caused a major geological failure. In the Jono Oge area, the earthquake-induced liquefaction and flow-slide occurred on relatively flat ground with an average slope of 2%. In this paper, the safety factor for slope stability analysis was determined by shear strength reduction caused by the earthquake at the potentially liquefied soil layer, varying peak ground acceleration values, and groundwater level conditions. This analysis evaluated the potential of ground movement occurrence in Jono Oge with the condition of soil layer pre and post the Palu-Donggala earthquake that happened in 2018 using GeoStudio Slope/W geotechnical software. The analysis was conducted on the cross-section of the soil layer based on three boreholes incorporating standard penetration test (SPT) data on the study area. The analysis results showed ground movement potential because of the seismic loads and groundwater level conditions. The lower the safety factor of slope stability, the higher the ground movement potential in flow-slide affected area. This ground movement potential could trigger the occurrence of flow-slide in Jono Oge area.

show abstract

Section: Liquefaction Potential Analysismentioning

confidence: 99%

Section: Slope Stability Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Slope stability analysis during an earthquake in flow-slide affected area of Jono Oge

Andiny

Faris

Adi

2022

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…Figure 2 shows the damage condition due to flow-slide. Several researchers have analysed the potential for liquefaction in the flow-slide area after the September 28, 2018, Central Sulawesi earthquake [5][6][7][8]. Muhanifah et al [6] conducted further analysis of the factor of safety (SF) value obtained from the analysis using the simplified procedure based on the Standard Penetration Test (SPT) data developed by Idriss and Boulanger [9] into the liquefaction potential index (LPI) by Iwasaki et al [10] to determine the level of potential liquefaction in the liquefied and non-liquefied areas in Balaroa, Central Sulawesi.…”

Section: Introductionmentioning

confidence: 99%

The condition of upper soil layer that causes severe damage to land due to liquefaction

Muhanifah

Adi

Faris

2022

IOP Conf. Ser.: Earth Environ. Sci.

Self Cite

View full text Add to dashboard Cite

An evaluation using the liquefaction potential index (LPI) was still applicable to the site conditions in Central Sulawesi in 2018’s earthquake with Mw 7.5. In some areas, severe liquefaction occurred and destroyed many buildings. This study was conducted to determine the depth of the liquefaction layer in any soil conditions that may cause severe damage to the land. This is intended to obtain guidance to select an area for housing, especially for low-budget housing. The possibility of land severely damages due to liquefaction occurred when the LPI value was more than 15. The analysis was conducted by creating various models of soil lithologies using the simplified procedure based on the standard penetration test (SPT) data. The upper layer was designed to have liquefaction potential, while the lower layer had not. The results were presented in graphs of correlation of the upper layer depths with the LPI greater than 15 using the N-SPT data ranging from 5 to 20 with a fines content (FC) of 5%, 15%, and 35%. Based on these results, selecting a safe location for housing could be done easily to prevent a massive disaster in the future.

show abstract

Post-liquefaction Analysis Using Standard Penetration Test Data and Grain Size Distribution Test at Irrigation Canal in Sidera Village

Dinastiyanto,

Hardiyatmo,

Pratiwi

2024

Advances in Civil Engineering Materials

View full text Add to dashboard Cite

Re-liquefaction hazard evaluation in flow-slide affected area of Jono Oge, Central Sulawesi, Indonesia

Cited by 8 publications

References 10 publications

Slope stability analysis during an earthquake in flow-slide affected area of Jono Oge

Slope stability analysis during an earthquake in flow-slide affected area of Jono Oge

The condition of upper soil layer that causes severe damage to land due to liquefaction

Post-liquefaction Analysis Using Standard Penetration Test Data and Grain Size Distribution Test at Irrigation Canal in Sidera Village

Contact Info

Product

Resources

About