Charea, Wanda Nurlaily (2024) Optimalisasi Perhitungan Volume dengan Kombinasi Metode Borrow Pit dan Surface to Surface (Studi Kasus: Kuari Clay PT Solusi Bangun Indonesia Tbk, Tuban, Jawa Timur). Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Perhitungan volume galian pada umumnya menjadi permasalahan utama dan kompleks pada suatu proyek dalam sebuah industri. Akurasi dalam perhitungan volume dapat memberikan pengaruh bagi besarnya anggaran proyek yang akan diajukan pada pihak pemberi proyek. Untuk merencanakan sebuah tambang salah satu aspek terpenting adalah perhitungan volume galian karena digunakan sebagai acuan untuk mencapai target produksi baik secara keberhasilan teknis maupun keuntungan. Adapun metode yang akan digunakan dalam perhitungan volume galian yaitu borrow pit dan surface to surface. Untuk mengatasi masalah tersebut dibutuhkan suatu cara atau teknik dalam perhitungan volume galian yang dapat memberikan hasil perhitungan yang akurat. Dalam hal ini dilakukan pengotimalisasi perhitungan volume dengan mengkombinasikan perhitungan volume metode borrow pit dan surface to surface, serta menganalisis ketelitian perhitungan volume galian berdasarkan toleransi dari ASTM (American Society for Testing and Material). Berdasarkan hasil uji toleransi ASTM, diperoleh data dengan nilai persentase terkecil yaitu 1,90% dari metode borrow pit dengan interval grid 10 meter yang memiliki selisih volume dengan forecase study sebesar 18.966 ton dan nilai persentase terkecil sebesar 0,01% dari metode surface to surface dengan selisih volume terhadap forecast study yaitu sebesar 77,09 ton. Dengan demikian, untuk menghasilkan perhitungan volume yang optimal dibutuhkan peta dengan skala 1:2500 dengan interval kontur 1 meter dan interval grid 15 meter.
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Calculation of excavation volume is generally a major and complex problem for project in an industry. Accuracy in volume calculations can have an influence on the size of the project budget that will be submitted to the project provider. To plan a mine, one of the most important aspects is calculating the excavation volume because it is used as a reference for achieving production targets both in terms of technical success and profit. The methods that will be used in calculating the excavation volume are borrow pit and surface to surface. To overcome this problem, a method or technique is needed to calculate the excavation volume that can provide accurate calculation results. In this case, volume calculations were optimized by combining volume calculations using the borrow pit and surface to surface methods, as well as analyzing the accuracy of excavation volume calculations based on tolerances from ASTM (American Society for Testing and Material). Based on the results of the ASTM tolerance test, data with the smallest percentage value was obtained is 1.90% from the borrow pit method with a grid interval of 10 meters which had a volume difference with the forecase study of 18,966 tonnes, and the smallest percentage value was 0.01% from the surface to surface method which had a volume difference with the forecast study of 77.09 tons. Therefore, to produce optimal volume calculations requires a map with a scale of 1:2500 with a contour interval of 1 meter and a grid interval of 15 meters.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | ASTM, Borrow Pit, Surface to Surface, Volume Galian, ASTM, Borrow Pit, Excavation Volume, Surface to Surface. |
| Subjects: | G Geography. Anthropology. Recreation > GA Mathematical geography. Cartography > GA109.5 Multipurpose cadastres. |
| Divisions: | Faculty of Civil, Environmental, and Geo Engineering > Geomatics Engineering > 29202-(S1) Undergraduate Theses |
| Depositing User: | Wanda Nurlaily Charea |
| Date Deposited: | 01 Aug 2024 03:31 |
| Last Modified: | 01 Aug 2024 03:31 |
| URI: | http://repository.its.ac.id/id/eprint/111517 |
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