Issue |
E3S Web Conf.
Volume 429, 2023
The Third International Conference of Construction, Infrastructure, and Materials (ICCIM 2023)
|
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Article Number | 04012 | |
Number of page(s) | 9 | |
Section | Geotechnical & Earth Sciences | |
DOI | https://doi.org/10.1051/e3sconf/202342904012 | |
Published online | 20 September 2023 |
Liquefaction potential evaluation on reconstruction project of irrigation canal in the Jono Oge and Lolu Village
1 Department of Civil and Environment Engineering, Faculty of Engineering, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
2 Directorate General of Construction Development, The Ministry of Public Works and Housing, South Jakarta 12110, Indonesia
* Corresponding author: sito.ismanti@ugm.ac.id
In Indonesia's liquefaction history, the province of Central Sulawesi was severely affected in several locations when a 7.5 Mw earthquake occurred in September 2018. This study aims to evaluate the liquefaction potential and generate the liquefaction hazard map in the reconstruction project of the Gumbasa Irrigation Canals passed through Jono Oge Village and Lolu Village, closely related to the liquefaction event in the Sigi Regency area. Using the simplified procedure method by Idriss and Boulanger, the Liquefaction Factor of Safety (FOS) was calculated for each layer of soil from thirteen (13) locations of soil investigation test at the end of 2021 by the Ministry of Public Works and Housing. Furthermore, it was followed by calculating the Liquefaction Potential Index (LPI) and Liquefaction Severity Index (LSI). The analysis results show that the construction work area has the liquefaction potential with the observed groundwater level. It is mapped on irrigation canals along the Jono Oge Village and Lolu Village to know the critical segment of the irrigation project. Hereafter, an irrigation canal segment named BGKN-45 to BGKN-46 in Jono Oge required a specific mitigation plan to prevent damage from liquefaction in the future.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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