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Pironika, Tarisa
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PENGGUNAAN APLIKASI QGIS UNTUK PEMBUATAN PETA TATA GUNA LAHAN DI KECAMATAN BUKITKECIL Pironika, Tarisa; Wahab, Wahyuni
Ensiklopedia Research and Community Service Review Vol 4, No 2 (2025): Vol. 4 No. 2 Februari 2025
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/err.v4i2.2940

Abstract

Bukitkecil District is one of the rapidly developing areas in Palembang City, South Sumatra, with various land uses. Therefore, accurate data regarding land use is needed to plan the management and utilization of natural resources sustainably. One of the tools that can be used to produce land use maps is QGIS (Quantum GIS) software, which is an open-source Geographic Information System (GIS) application. This research aims to use QGIS for creating land use maps in Bukitkecil District, using spatial and non-spatial data to visualize existing land use. The resulting map is expected to be used as basic information in decision-making and spatial planning in the Bukitkecil District area.Keywords:QGIS,Land Use,Map,Geographic Information System (GIS),Bukitkecil District
PERBANDINGAN NILAI EKSPANSIF TANAH BERDASARKAN HASIL INDEX PROPERTIES DAN 1-D FREE SWELL TEST Pironika, Tarisa; Mulyati, Ely
Ensiklopedia of Journal Vol 8, No 1 (2025): Vol. 8 No. 1 Edisi 1 Oktober 2025
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/eoj.v8i1.3414

Abstract

Expansive soil is a type of soil that is susceptible to significant volume changes due to fluctuations in water content. This study aims to analyze the comparison of the expansive soil values based on the Index Properties results and the 1-D Free Swell Test with variations in bentonite mixture of 0%, 30%, 40%, 50%, 60%, and 100%. The observed parameters include the liquid limit (LL), plasticity index (PI), and the expansion value from the 1-D Free Swell Test. The test results show that the addition of bentonite significantly increases the plasticity of the soil. The LL value increased from 56.37% at 0% bentonite to 114.33% at 100% bentonite, while the PI value increased from 34.77% to 92.72%. Based on classification, soil with a bentonite mixture ≥30% is categorized as very high. Meanwhile, the results of the 1-D Free Swell Test show a relatively small expansion variation, namely 2.91%–3.76%, with a classification of low to medium expansion potential.Effective Index Properties are used as an early indicator for the identification of expansive soil, while the 1-D Free Swell Test is more representative in describing the actual development potential in the field.Keywords: expansive soil, bentonite, index properties, free swell test
Co-Authors Mulyati, Ely Wahab, Wahyuni