Yustina Hong Lawing
Kutai Kartanegara University

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CALCULATION OF CUT AND FILL VOLUMES USING MINING SOFTWARE AT PT BARAMULTI SUKSESSARANA Yustina Hong Lawing; Wahyu Riadi; Lutpiandi Lutpiandi; Mardi Sutomo
Multidisciplinary Indonesian Center Journal (MICJO) Vol. 3 No. 3 (2026): Vol. 03 No. 3 Edisi Juli 2026
Publisher : PT. Jurnal Center Indonesia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62567/micjo.v3i3.2673

Abstract

Cut and fill calculation is an essential stage in open-pit mining activities to determine the volume of soil or rock that must be excavated (cut) and deposited (fill) based on elevation changes between the actual topographic conditions and the planned mine design. This study aims to analyze the results of cut and fill volume calculations using GEOVIA Surpac software in a coal pit area. The data used include topographic maps obtained from RTK (Real Time Kinematic) surveys. The calculation results show a total cut volume of 805.42 MT and a fill volume of 2.09 MT, with a net volume of 803.33 MT, using a rock density of 1. The use of Surpac has proven effective and accurate in calculating material volumes and supporting the optimization of mine design.
RECLAMATION OF FORMER COAL MINING LAND AT THE NORTHERN PIT OF CV. SEMOGA SURYA SENTOSA, SELUANG RIVER, SAMBOJA, EAST KALIMANTAN Yustina Hong Lawing; Merdi Handayani
Multidisciplinary Indonesian Center Journal (MICJO) Vol. 3 No. 1 (2026): Vol. 3 No. 1 Edisi Januari 2026
Publisher : PT. Jurnal Center Indonesia Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62567/micjo.v3i1.2110

Abstract

The rehabilitation of post-mining land with low nutrient content is carried out using chemical and organic materials. To improve soil fertility, the application of fertilizers is required. Soil fertility is crucial as a medium for plant growth to enable replanting. Once the planting medium is available, it is then cultivated with plants suitable for the land conditions. The methodology of this study involved observing land conditions by examining soil structure, texture, and pH in the research area. The results showed that the soil texture belongs to the sandy clay loam or clay loam class, with a soil pH of 3.72. Soil improvement was carried out by applying dolomite lime at 100 grams per planting hole, requiring a total of 66.7 kilograms. Goat manure was applied at 2 kilograms per planting hole, with a total requirement of 133.4 kilograms for 667 trees. The tree species planted were Sengon (Paraserianthes falcataria) and Trembesi (Samanea saman).