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All Journal Natural Science: Journal of Science and Technology Gravitasi Geosains Kutai Basin Tadulako Science and Technology Journal Dialektika : Jurnal Pendidikan Agama Islam Penelitian Gizi dan Makanan (The Journal of Nutrition and Food Research) JILMATEKS Jurnal Ilmiah Mahasiswa Teknik Sipil
Rustan Efendi
Jurusan Fisika ,Fakultas MIPA, Universitas Tadulako
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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Journal : Tadulako Science and Technology Journal

 1 
DETERMINATION OF SEISMIC VULNERABILITY INDEX AND SEDIMENT THICKNESS USING THE HVSR METHOD IN PALU CITY AREA Marwah S; Rusydi M; Kurniawan M; Rustan Efendi; Rusli M; Sesa E
Tadulako Science and Technology Journal Vol. 4 No. 1 (2023): TADULAKO SCIENCE AND TECHNOLOGY JOURNAL
Publisher : LPPM Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/sciencetech.v4i1.16394

Abstract

The Palu City area is one of the areas that are vulnerable to the impact of the earthquake, seen from the seismicity and the Palu-Koro fault. Therefore, it is necessary to analyze the seismic vulnerability index and the thickness of the sediment layer in the Palu city area. This study uses the microtremor method with HVSR (Horizontal to Vertical Spectrum Ratio) analysis. The HVSR method produces natural frequency parameters (fo) and amplification (Ao) which are presented in the form of an H/V curve so that this method can estimate the seismic vulnerability index (Kg). The H/V then becomes the input for the ellipticity curve analysis to get the thickness of the sediment layer (h). The results of the study show that the Kg value ranges from 0.16 to 37.09. The lowest Kg value is located at the point MP2234-14 (Kawatuna Village). ) and the highest Kg value is located at MP2234-06 (Petobo Village), the high Kg value tends to be in the valley area and areas close to the coast, while the hillside tends to be low. The results of the analysis of the thickness of the sediment layer (h) ranged from 7 m to 128 m, the thick sediment layer is in the valley and coastal areas, while the thin sediment layer tends to be in the area oh the hills
Determination Of Liquefaction Sediment Volume In Balaroa VillageUsing The Geoelectric Resistance Type Method Asgar; M. Rusydi; Rustan Efendi; Moh. Dahlan Th Musa; Badaruddin
Tadulako Science and Technology Journal Vol. 2 No. 2 (2022): Tadulako Science and Technology Journal
Publisher : LPPM Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/sciencetech.v2i2.17299

Abstract

Introduction: Research has been carried out titled "Determining the Volume of Liquefaction Sediment Using the Geoelectric Resistivity Type Method in Balaroa Village". Methods: This research aims to identify subsurface lithology and determine the volume of liquefaction sediment in Balaroa Village. This research uses the resistivity method Wenner configuration. Result and Discussion: Measurements were carried out in 4 passes with the distance between electrodes on Tracks 1 - 3 being 7 m and on Track 4 a distance of 10 m. From the results of measurements and data interpretation, it was obtained that the type resistance value was 2.98 - 436.14 Ωm with lithology in the form of clay, sand, and gravel. The calculated volume of liquefaction sediment in Balaroa Village is 370,883 m³. Conclusion: Clay and sand rocks are liquefaction sediments with resistance values of less than 67.86 Ωm. Meanwhile, gravel and building debris are non-liquefaction rocks with resistance values of more than 67.86 Ωm. The calculated liquefaction sediment in Balaroa Village is around 370,883 m³. The volume of liquefaction sediment increases in thickness in the eastern part, which is caused by morphological conditions that tend to be more gentle in that part.
Identification Of Liquefaction Slide Planes Using The Geoelectric Resistance Type Method In Balaroa Village Muh Ikhsan Nurfaizi Saida; M Rusdy.H; Muin, M.R; Rustan Efendi; S. Sandra; Mauludin Kurniawan
Tadulako Science and Technology Journal Vol. 2 No. 2 (2022): Tadulako Science and Technology Journal
Publisher : LPPM Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/sciencetech.v2i2.17303

Abstract

Introduction: Research has been conducted with the title "Identification of Liquefaction Sliding Fields Using the Type Resistance Geoelectric Method in Balaroa Village". This study aims to determine the subsurface constituent rock layers and the position of the sliding plane based on the type resistance data. Method: This study consists of 6 measurement tracks with a track length of 150 meters using the Vertical Electrical Sounding (VES) method with the Schlumberger configuration. Data processing uses the software program Progress version 3.0 and ipi2win. Results and Discussion: The results obtained indicate the presence of subsurface constituent layers, namely: Passive clay, clay sand, and gravel, and the presence of an inclined plane of 25° to 55.5% with a steep slope. Conclusion: Based on data analysis and interpretation, it can be concluded that the rock lithology at the study site consists of passive clay, clay sand, and gravel, based on the value of specific resistance. The slope of the sliding plane layers that have the potential to trigger landslides and liquefaction at the site tends to be west-east with a slope angle of 25°, or 55.6%, which is included in the steep slope category
Co-Authors Abdullah Abdullah Artono, Vicho Yugho Asgar Asrul, Andi Moh. Badaruddin Baligau, Chris Indra Cahya Buhaerah Buhaerah, Buhaerah Fazri, M Fitrah Emawati Galla, Ribka Hermanto, Yudi Iis Ristiani Indra Indra J, Fulansyah Joko Pambudi Junaedy, Mohamad Kumalasari, Anisa Indah Kurniawan M Lamangkona, Fajrah M Rusdy.H M. Rusydi Majid, Jursan Makmur, Ermawati Mardia, Aina Marwah S Maskur Maskur Mauludin Kurniawan Moh Dahlan Th Musa Mojo, Khairul Anam Triat Muh Ikhsan Nurfaizi Saida MUHAMMAD HARIS Muhammad Rivai Muin, M.R Musa, Ratna Ni Ketut Adnyawati Novrianti, Melda Nurarafah, Nurarafah Panggoe, Hartito Purwoko, Agus Putri, Dwi Elanda Rafmin, Fatmawati Rasyid, Fathana Rusli M Rusydi H, M Rusydi H., M. Rusydi M S. Sandra Sabhan Sabhan Sandra Kasim, Sandra Sandra Sandra Sesa E Solly Aryza Sri Martuti Sulastri, Nur Arsy Risna Sunbanu, Narwastu Elroy Suryaningsih, Ninik Daryuni Tahnun, Ma'zirah Talo, Joni Loe Tayeb, Musrifah Am Wahyulani, Sri Wellang, Musyafir Wengkau, Mario Putra Yansah, Ardi Yusuf, Magfira Yutdam Mudin Zulhelmi, Zulhelmi