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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Tadulako Science and Technology Journal Media Konstruksi : Jurnal Ilmiah Teknik Sipil Jurnal Riset dan Pengabdian Interdisipliner
Nunik Rezkiarti Janat
Program Studi Teknik Geologi, Jurusan Teknik Sipil, Fakultas Teknik, Universitas Tadulako
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Physics Social Sciences Other

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Delineation of Groundwater Density Zones Using Multi-Criteria Analysis in Ngatabaru Village Area, Palu City Indra Wahyudi Betalino; Zeffitni; Nunik Rezkiarti Janat
Tadulako Science and Technology Journal Vol. 1 No. 2 (2021): Tadulako Science and Technology Journal
Publisher : LPPM Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/sciencetech.v1i2.17296

Abstract

Introduction: This research discusses the availability of groundwater in the Ngatabaru Village area. The use of groundwater, which tends to be more intensive and is not in accordance with its availability and utilization zone, ultimately has an impact on the local environment. Method: This study used the overlay method to determine the groundwater conditions in the study area. This method uses 7 parameters to determine the groundwater zone, namely lithology, hydrogeology, land cover, rainfall, slope, drainage density, and lineament density. Results and Discussion: This map produces 5 groundwater occurrence zones which show that 34.32% of the study site is an area with very low groundwater occurrence, then 37.19% is an area with low groundwater occurrence, 9.08% is an area with moderate groundwater occurrence, 12.91% is an area with high groundwater occurrence and 6.5% is an area with very high groundwater occurrence. Conclusion: Based on the analysis, Kelurahan Ngatabaru has low annual rainfall, ranging from 0 to 800 mm. The slope is steep in the east and slopes to the west, with forest land cover in the east and scrub and settlements in the west. Geologically, the area consists of schist, granite, and conglomerate lithologies, and has aquifers with high, low, and little productivity.
Edukasi Ilmu Kebumian Dan Potensi Kebencanaan Geologi Bagi Siswa SMA Negeri 1 Sarjo Janat, Nunik Rezkiarti; Fitriana, Tati; Asrafil, Asrafil; Mukaddas, Abdul; Nugroho Uno, Djamal Adi; Mulyati, Sri
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Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jrpi.v2i4.35324

Abstract

Considering the geological complexity of Sulawesi and the limited exposure of students to basic geoscience knowledge in formal education, SMA Negeri 1 Sarjo, located in West Sulawesi and bordering Central Sulawesi, recognized the need to conduct a knowledge-sharing activity on earth science, geological resources, and geological hazards. This program invited academic experts from the Faculty of Engineering, Universitas Tadulako, to deliver educational materials tailored for high school students. The main objective was to enhance students’ understanding of geoscience concepts, introduce the diversity of geological resources, and increase awareness of geological hazards, particularly those prevalent in Sulawesi. The activity involved grade XII students through presentations, discussions, and interactive question-and-answer sessions. Students and teachers responded positively, indicating increased interest and comprehension of the topics presented. The positive feedback and appreciation expressed by the school, especially through the Vice Principal for Curriculum and Student Affairs, served as an indicator of the program’s success.
Penentuan Kestabilan Lereng Batuan Menggunakan Limit Equilibrium Method (LEM) Di Ruas Jalan Trans Palu-Kulawi Desa Salua Kabupaten Sigi I Ketut Nuarta; Nunik Rezkiarti Janat; Ahmad Imam Abdullah; Asrafil; Abdul Mukaddas
MEDIA KONSTRUKSI Vol. 9 No. 4 (2024)
Publisher : Jurusan Teknik Sipil, Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/jmk.v9i4.147

Abstract

Ruas jalan Desa Salua di Kabupaten Sigi, Sulawesi Tengah, dinilai rawan longsor akibat kondisi geologi, geometri lereng, dan guncangan gempa seperti pada tahun 2018. Penelitian ini bertujuan menilai kestabilan lereng sebagai acuan perencanaan struktural guna meminimalkan risiko longsor. Interpretasi tingkat kestabilan lereng merujuk dari nilai faktor keamanan (FS) yang diperoleh dari penerapan limit equilibrium method (LEM) menggunakan kaidah Bishop. Penelitian diawali dengan identifikasi litologi lereng berupa diorit dari Formasi Batuan Terobosan. Estimasi sifat mekanika batuan dilakukan melalui kriteria Hoek-Brown, Geological Strength Index (GSI), dan uji berat isi di laboratorium untuk memperoleh parameter Mohr-Coulomb. Model lereng kemudian dianalisis dalam kondisi dinamis dengan asumsi adanya guncangan. Hasil menunjukkan nilai faktor keamanan (FS) secara deterministik sebesar 6,191 dan probabilitas kelongsoran (PF) sebesar 2,493%. Meski nilai FS menunjukkan lereng stabil (FS > 1), potensi longsor parsial tetap ada akibat pelapukan tidak merata. Riwayat longsor di lokasi membuktikan bahwa guncangan berperan signifikan, sehingga diperlukan penanganan seperti tanggul penahan, paku bumi, geotekstil, serta rekayasa geometri lereng guna meningkatkan kestabilan terhadap guncangan.
Identifikasi Tingkat Pelapukan dan Analisis Nilai Kuat Tekan Batuan pada Tambang batu di Daerah Loli Saluran, Kabupaten Donggala Nunik Rezkiarti Janat; Rini Matana; Muslimin U. Botjang
MEDIA KONSTRUKSI Vol. 10 No. 3 (2025)
Publisher : Jurusan Teknik Sipil, Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/jmk.v10i3.208

Abstract

Loli Saluran yang terletak di Kabupaten Donggala, Provinsi Sulawesi Tengah, merupakan wilayah pertambangan batuan yang hasil produksinya didistribusikan ke berbagai daerah di Indonesia. Kualitas batuan di wilayah ini umumnya dinilai berdasarkan kelayakannya sebagai bahan konstruksi, terutama melalui parameter kuat tekan dan tingkat pelapukan. Penelitian ini bertujuan untuk mengidentifikasi tingkat pelapukan menggunakan klasifikasi Irfan dan Derman (1978) serta menganalisis nilai kuat tekan batuan berdasarkan hasil uji Schmidt hammer. Hasil penelitian menunjukkan adanya tiga (3) macam derajat pelapukan, yaitu derajat pelapukan II, III, dan IV. Selanjutnya dilakukan analisis hubungan antara kedua parameter tersebut. Analisis hubungan kedua parameter dilakukan dengan membuat grafik berdasarkan nilai schmidt hammer, UCS dan kelas derajat pelapukan. Berdasarkan hasil penelitian, diketahui bahwa semakin tinggi derajat pelapukan, maka nilai kuat tekan batuan cenderung semakin rendah.
Hoek & Brown Collapse Criteria Method on The Road Section of Lende Tovea Village, Sirenja District, Donggala Regency Muhammad Sarjan Djalil; Muslimin U. Botjing; Nunik Rezkiarti Janat
Jurnal Penelitian Pendidikan IPA Vol 12 No 6 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i6.15350

Abstract

Avalanches on public infrastructure such as highways occur unpredictable due to unstable slopes due to degraded rock material. Avalanches can potentially cause and material losses. The research was conducted to classify the rock mass with the Geological Strength Index (GSI) method as a parameter for determining the slope safety factor on the road section of Lende Tovea Village, Sirenja District, Donggala Regency, Central Sulawesi Province. To obtain the value of cohesion and angle of friction in the approach used Hoek & Brown collapse criteria. Determination of safety factor value using Spencer type method, using GeoStudio 2018 R2 software application. The slope on the road section of the research area is composed of igneous lithology in the form of rhyolite and diorite. Geological structures in the form of fracture and faults. The results showed that the slope of the road section in the northern part of Lende Tovea Village based​ on the Geological Strength Index (GSI) value in the range of 25-33 with the condition of the rock mass is in the category of very blockly, disturbed & poor and slicken with wedge avalanche type at observation stations 1-5. The results of the safety factors value at stations 1, 2, 4, and 5 are in a condition prone to landslides with values of 1.514; 1.482; 1.595; 1.408 respectively while at station 3 in a condition where landslides rarely occur with a value of 1.921.
Co-Authors Abdul Mukaddas Abdul Mukaddas Ahmad Imam Abdullah Asrafil Asrafil Asrafil Djamal Adi Nugroho Uno Fitriana, Tati I Ketut Nuarta Indra Wahyudi Betalino Muhammad Sarjan Djalil Muslimin U. Botjang Muslimin U. Botjing Rini Matana Sri Mulyati Zeffitni Zeffitni