Large distance flow-slide at Jono-Oge due to the 2018 Sulawesi Earthquake, Indonesia

Hazarika, Hemanta; Rohit, Divyesh; Pasha, Siavash Manafi Khajeh; Maeda, Tsubasa; Irsyam, Masyhur; Arsyad, Ardy; Nurdin, Sukiman

doi:10.1016/j.sandf.2020.10.007

Cited by 43 publications

(24 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…There was some strategy to develop a solution of reconstructing the main canal with build back better solution. Some of the strategies include: (1). The prime objective is presumably to get the canal back operational in a short time frame and at a reasonable cost (2).…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, the option for the rehabilitation of the main canals considers various canal lining options. The objectives of canal lining are; (1). Prevent water loss/leakage.…”

Section: Resultsmentioning

confidence: 99%

“…Meanwhile, based on the 2016 GPS measurement data outlined in the 2007 Indonesia Earthquake Hazard and Source Map, the shear rate of the Palu-Koro Fault is 20-40 mm/year. The last activity recording of this geological structure occurred on September 28, 2018, which caused an earthquake of magnitude M7.4, followed by a tsunami and liquefaction [1].…”

Section: Area Of Studymentioning

confidence: 99%

“…This earthquake was followed by liquefaction-induced, large-scale ground flows in several areas in Palu city and its neighborhood. Four sites with extensive ground flow incidents were identified: Balaroa, Petobo, Jono Oge, and Sibalaya, located 80-110 km south of the epicenter [1]. This earthquake was preceded by a sequence of foreshocks, the greatest of which was Mw 6.0 that occurred three h before the mainshock.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Forensic investigation of Gumbasa irrigation main canal damage due to large-scale flow liquefaction in Sibalaya caused by the 2018 Sulawesi Earthquake

Nurdin

Arsyad

Marhum

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

This study conducted an extensive soil investigation in the Sibalaya liquefaction area to identify the Gumbasa main canal’s damage triggered by flow liquefaction. Several field tests and trenches with approximately 4 m were excavated to observe liquefied soil layers directly near the canal. A borehole, standard penetration test, and multichannel analysis surface waves (MASW) were performed beside the trench to obtain each layer’s penetration resistance. This research aims to understand the landslide’s whole aspect. The ground movements were analyzed by using satellite photos before and after the earthquake. The displacement of the main canal, the typical damage inventory, and the proposed reconstruction of the main canal are the focus of this study. As a result of the forensic investigation, the liquefied layers and debris flow contributing to the massive landslide were identified to impact the primary canal. The typical damage of the canal was due to surface rupture that occurred both horizontally and vertically. A solution for reconstructing the main canal is to use a flexible pipe canal structure. That will be resilient to future earthquake and ground movements, stabilize the ground downslope of the existing canal to limit the risk of future lateral movement in future earth tremors.

show abstract

Section: Resultsmentioning

confidence: 99%

“…Therefore, the option for the rehabilitation of the main canals considers various canal lining options. The objectives of canal lining are; (1). Prevent water loss/leakage.…”

Section: Resultsmentioning

confidence: 99%

Section: Area Of Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Forensic investigation of Gumbasa irrigation main canal damage due to large-scale flow liquefaction in Sibalaya caused by the 2018 Sulawesi Earthquake

Nurdin

Arsyad

Marhum

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…The two landslide flows that occurred in Petobo and Jono Oge in the Palu basin were within a large area of land deformation. However, the most significant land displacement scale was taken place in Jono Oge village (Hazarika et al 2020).…”

Section: Fig 12 the Ilustration Of Mudflows Induced By Earthquake Inmentioning

confidence: 99%

Liquefaction in Palu: The Cause of Massive Mudflows

Jalil

Fathani

Satyarno

et al. 2021

Preprint

View full text Add to dashboard Cite

The 7.5 Mw tectonic earthquake that hit Palu City on 28 September 2018 was followed by tsunami and liquefaction that triggered massive mudflows in Balaroa, Petobo, and Jono Oge areas. Extensive damages to infrastructures occurred as the result of these earthquake-triggered disasters. This study explores the causing factors of the massive mudflow in Balaroa, Petobo, and Jono Oge areas as it is a quite rare phenomenon. This study focuses on the causing factors of liquefaction such as the condition of soil lithology, depth of water table, distance to the fo[1]cal mechanism, and the thickness of soft sediment. To carry out the liquefaction analysis, important data, such as microtremor data which included the Horizontal Vertical Spectral Ratio (HVSR), geological condition, and borehole data, were examines. Additional data i.e. ground layers slopes and other factors were also investigated. Normally, these data are not considered when observing common liquefaction. However, for the case of massive mudflows in Balaroa, Petobo, and Jono Oge, they become the key factors. Based on the microtremor data, the analysis results show that the distribution of ground shear strain values in Palu City ranges from 0.75×10-4 to 2.56×10-4. The distribution of the locations of the liquefaction corresponds to the distribution of ground shear strain values. High ground shear strain values were discovered in Palu City valley. Such high value and groundwater level indicate that liquefaction in Palu City will certainly take place. The semi-empirical method confirms that Balaroa, Petobo, and Jono Oge have high potential for large-scale liquefaction to occur at a maximum depth of 16 meters below the ground surface. Having loose soil grain with high water content, the soil will turn into a massive amount of mud during the liquefaction. In addition, ground slopes and ground vibration due to the earthquake will create massive mudflows similar to flash flood. However, the mudflows movement is slow since the slope inclination is slight.

show abstract

Coseismic and Post-seismic Slope Instability Along Existing Faults

Towhata

2022

Proceedings of the 4th International Conference on Performance Based Design in Earthquake Geotechnical Engineering (Beijing 202

View full text Add to dashboard Cite

Large distance flow-slide at Jono-Oge due to the 2018 Sulawesi Earthquake, Indonesia

Cited by 43 publications

References 32 publications

Forensic investigation of Gumbasa irrigation main canal damage due to large-scale flow liquefaction in Sibalaya caused by the 2018 Sulawesi Earthquake

Forensic investigation of Gumbasa irrigation main canal damage due to large-scale flow liquefaction in Sibalaya caused by the 2018 Sulawesi Earthquake

Liquefaction in Palu: The Cause of Massive Mudflows

Coseismic and Post-seismic Slope Instability Along Existing Faults

Contact Info

Product

Resources

About