Field reconnaissance data from GEER investigation of the 2018 MW 7.5 Palu-Donggala earthquake

Montgomery, Jack; Wartman, Joseph; Reed, A.; Gallant, Aaron P.; Hutabarat, Daniel; Mason, H. Benjamin

doi:10.1016/j.dib.2021.106742

Cited by 13 publications

(6 citation statements)

References 5 publications

(10 reference statements)

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“…At the upstream of the landslide, an unlined irrigation channel extends north to south, which connects to downstream areas of Jono Oge and Petobo. In both areas, the landslide mass flowed westward from this channel, suggesting a contribution of channel and irrigation water to the occurrence of landslide [7]. The affected area and the overall length calculated based on the photos are approximately 0.52 km ² and 1.1 km.…”

Section: Area Of Studymentioning

confidence: 93%

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.

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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.

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Section: Area Of Studymentioning

confidence: 93%

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.

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“…Its existence is supposed to protect To Kaili from disasters and disturbances from spirits, such as evil spirits around them. Around their buildings, To Kaili can usually prevent such a spirit by keeping sacred objects believed to drive away ghosts, or disasters, from entering the house (Montgomery, Wartman, et al, 2021).…”

Section: Settlementsmentioning

confidence: 99%

Innovation on Mutual Cooperation Culture (Gotong Royong) Implementation for House Development

Siradjuddin

2023

IRSPSD International

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The Gotong Royong culture, which is the hallmark of the Bajo community, continues to experience changes due to interactions with mainland people. As a result, the cultural values of Gotong Royong have been abandoned. Efforts to restore local wisdom, such as the Gotong Royong culture, are urgently needed in this era. This research aims to innovate by reintroducing this culture, particularly in housing and housing development cooperation. The reapplication of local wisdom (Gotong Royong culture) in this study is intended to ensure that the characteristics and identities of the Bajo people remain the basis for building their social capital. The researcher used a qualitative descriptive method with inductive and deductive approaches, along with a Value Engineering approach. This research was conducted within the Bajo Tribe's location, situated in Kabalutan Village,

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“…Liquefaction-induced damages have been observed globally in the aftermath of moderate to large earthquakes. Damaging earthquakes occurred in 1992 in Landers, in 2011 in Tohoku-Oki, and in 2018 in Indonesia [4][5][6][7][8]. Therefore, studies related to liquefaction have become important in the field of geotechnical engineering [9,10].…”

Section: Introductionmentioning

confidence: 99%

Induced Partial Saturation Using Pseudomonas stutzeri Biogas for Mitigate Structure Settlement

Lv,

Zhang,

Peng

et al. 2024

Buildings

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Induced partial saturation (IPS) is a new foundation treatment method for mitigating soil liquefaction using biogas. A series of laboratory tests were performed to demonstrate the influencing factors of IPS using Pseudomonas stutzeri biogas. On the basis of the optimal biogas production conditions, the intervention effect of Pseudomonas stutzeri biogas on the foundation deformation under buildings was investigated based on shaking table tests. The test results showed that the best carbon source in the denitrification process of Pseudomonas stutzeri biogas is sodium citrate. The most effective initial value of optical density-based concentration was 0.1. The carbon–nitrogen ratio (C/N) of the bacterium suspension was used as the index to control the saturation. The degree of saturation reduction showed a good linear correlation with the C/N. The optimum temperature of this method was between 20 °C and 30 °C. The most suitable pH value was between 7 and 9. The environmental factors had minimal influence on the degree of saturation reduction but had a significant effect on the average rate of gas generation and the period of initial stagnation. After Pseudomonas stutzeri biogas desaturation, the settlement of the building was greatly reduced. The settlement of saturation of 92.5% sand foundation reached 17.1 mm, and the 85% saturation was only 10.6 mm. These results provide a good foundation for the feasibility of utilizing Pseudomonas stutzeri biogas mitigation of the liquefaction hazard of sand.

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Field reconnaissance data from GEER investigation of the 2018 MW 7.5 Palu-Donggala earthquake

Cited by 13 publications

References 5 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

Innovation on Mutual Cooperation Culture (Gotong Royong) Implementation for House Development

Induced Partial Saturation Using Pseudomonas stutzeri Biogas for Mitigate Structure Settlement

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