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All Journal Inklusi Journal of Disability Studies Jambura Journal of Educational Management Akuntabilitas: Jurnal Ilmiah Ilmu-Ilmu Ekonomi Indonesian Geotechnical Journal Teknovokasi : Jurnal Pengabdian Masyarakat Vokatek : Jurnal Pengabdian Masyarakat Information Technology Education Journal Jurnal MedScientiae Jurnal Sipakatau: Inovasi Pengabdian Masyarakat Jurnal MediaTIK Journal of Computers, Informatics, and Vocational Education UNM Journal of Technology and Vocational Jurnal Wicara Desa Jurnal Vokasi Keteknikan
Purnamawati
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Immunology & microbiology Languange, Linguistic, Communication & Media Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Water Retention Curve of Soil at Simpang Meo Region South Sumatra Purnamawati; Gumay, Herdian; Gofar, Nurly
Indonesian Geotechnical Journal Vol. 4 No. 2 (2025): Vol. 4, No. 2, August 2025
Publisher : Himpunan Ahli Teknik Tanah Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56144/igj.v4i2.122

Abstract

Steep slopes are typically formed on residual soil with deep groundwater levels; hence, the slopes are in the unsaturated zone. Therefore, in analyzing the stability of steep slopes, it is necessary to consider the properties of unsaturated soil. The main property of unsaturated soil is the Water Retention Curve (SWCC), which describes the relationship between matric suction and soil moisture content. Many methods are available to determine the SWCC of a soil, such as laboratory and field tests, as well as empirical equations. Laboratory testing is considered the best method for determining the SWCC. However, the laboratory work involved in the determination of SWCC is tedious; thus, several models have been developed by researchers to obtain SWCC. This study compares SWCC obtained based on the results of laboratory testing using an Osmotic Tensiometer assisted by soil shrinkage measurements using a 3-D scanner, and the SWCC obtained using the empirical equation proposed by Zapata for plastic soil based on the percentage of particles passing the No. 200 sieve and the soil plasticity index.   The soil samples were retrieved from a location in the Simpang Meo region in South Sumatra. Air entry value for the SWCC was obtained both graphically and deterministically. Both methods resulted in a lower air entry value (AEV) for the Zapata equation as compared to the osmotic tensiometer test. A lower AEV indicates that lower suction is required for water to enter the soil pores.  Therefore, analysis of rainfall infiltration and slope stability using SWCC curves estimated from the Zapata equation could result in later saturation of soil, hence a slightly higher factor of safety
Model Pembelajaran Berbasis Industri di SMK Industry-Based Learning Model In Vocational Schools Yahya, Muhammad; Purnamawati; Komeini, Muhammad
Jurnal Vokasi Keteknikan Vol 1 No 1 (2023): Maret 2023
Publisher : Pascasarjana Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59562/jvkt.v1i1.9949

Abstract

This study aims to find out: 1) assessment of the needs of WBL learning model development and 2) the effectiveness of the WBL model to improve electrical measurement skills. Data collection techniques through interview and questionnaire methods. The research approach is development research (R&D) with the concept of Thiagarajan 4D (Define, Design, Develop, and Disseminate). The data were analyzed with descriptive, qualitative and inferential statistics. This research is a qualitative descriptive research by analyzing the material needs for the development of learning models. The results of the study were in the form of WBL model learning products on TBU cadet electrical measurement practices that were feasible and effective: 1) the need for professional identity, aspects of personal knowledge in metacognitive competence contributed the most to the achievement of electrical measurement skills, and 2) test results in the TBU IX experimental class group with effective WBL model learning compared to the results o f the TBU X control class group through traditional learning.
Co-Authors Abdul Ma’arief Al Imran Abdul Muis Mappalotteng Adihtiyah Raihan Alfian, Andi Alimuddin Sa’ban Miru Amirah Mustarin Amiruddin Anas Arfandi Andi Muhammad Akram Mukhlis Andi Rahmania Hair Angeline, Reni Arfan Utiarahman BUYUNG RAHMAT MACHMOED Dharma, Herbert Edwar Luden Ervi Novitasari Faldiansah Gumay, Herdian Hamsu Abdul Gani Hamsu Abdul Gani, Hamsu Hasanah Nur Hendra Jaya Husna Saleh Indah Melisa Katrina Khaidir Rahman Komeini, Muhammad Kurniaty Atmia la Abdul, Barry Mantasia Mawaddah A. Miftahur Risky Jufri Muh. Yusuf Mappeasse Muhammad Akil Muhammad Akil, Muhammad Muhammad Yahya Muhammad Yassir Mumpuniarti Mumpuniarti Mutiara Mutmainna NANDA YUNITA Natsir, Abdul NUR AMAL JAYA Nur Rahmah Nur, Hasanah Nurcahaya Nurfauziah Nuridayanti Nurly Gofar, Nurly Nurul Fadhilah NURUL FADILA Pranadi, Agung Putra Pratama, Zulfauzan Ranaseptiani, Silfa Riana T. Mangesa Ridwansyah Ruslan Saputri, Ardita Juliana Setiawan, Micko Yusuf Siemze Joen Siti Rokhmah Sugian, Ahmad Sundusiah, Baiq Suriany Sukardi Tewa, Mustamin Udin Sidik Sidin Usman Mulbar Wirdhana al Habsyi A Yunus Tjandi