Evaluation of Discharge Calculation in Open Pit Mining

Ivan Kurniawan, Satria Damarnegara, Nastasia F Margini

Abstract


This study presents the discharge calculation of open pit mining drainage system. Open pit mining is one of surface mining methods when the location of the coal is near ground surface. This research uses open pit mine at PT Maruwai Coal as the case study. Several methods of discharge calculation are performed, such as: rational method, FJ Mock and HEC-HMS model. The drainage system of the mine is analyzed using spatial analysis. The runoff coefficient based on observation and theoretical value is compared. Each calculation is compared with observation data based on pump operation on the mine. Several challenge and limitation of each method is analyzed and several parameter recommendations are given. Runoff prediction for design rainfall also compared, based on each approach. This study result can be used to optimize the run-off management on open pit mining.

Full Text:

PDF

References


Pemerintah Republik Indonesia, Undang-Undang Nomor 3 Tahun 2020 - Pengusahaan Tambang Mineral Batubara. 2020.

M. G. Rianta, “Mengenal Metode Surface Mining pada Pertambangan Batubara,” 2022. [Online]. Available: https://indonesiare.co.id/id/article/mengenal-metode-surface-mining-pada-pertambangan-batubara. [Accessed: 30-Aug-2022].

R. Ramadhan, P. N. Hartami, and I. Hendratmoko, “Evaluasi Hidrologi pada Tambang Terbuka di Pit M2 Utara dan H Utara , Jobsite Separi , Santan Batubara Project , Kalimantan Timur,” Indones. Min. Energy J., vol. 1, no. 2, pp. 97–108, 2018.

D. Kardana Natakusumah, M. Syahril B. Kusuma, H. Darmawan, M. Bagus Adityawan, and M. Farid, “Pemodelan Hubungan Hujan dan Aliran Permukaan pada Suatu DAS dengan Metoda Beda Hingga,” ITB J. Sci., vol. 39, no. 1&2, pp. 97–123, 2007.

Water Science School, “What is Hydrology?,” 2020. [Online]. Available: https://www.usgs.gov/special-topics/water-science-school/science/what-hydrology?qt-science_center_objects=0#qt-science_center_objects.

J. Haseeb, “Applications of Hydrology in Civil Engineering,” 2007. [Online]. Available: https://www.aboutcivil.org/uses-of-engineering-hydrology.html. [Accessed: 27-Aug-2022].

Natural Resources Institute, “Chapter I : Introduction,” in Handbook for agrohydrology, 1994.

S. Neenu, “Engineering Hidrology Features and Application,” The Constructor, 2020. [Online]. Available: https://theconstructor.org/water-resources/hydrology/engineering-hydrology-scope-applications/37597/. [Accessed: 25-Aug-2022].

J. L. Higson and M. B. Singer, “The impact of the streamflow hydrograph on sediment supply from terrace erosion,” Geomorphology, vol. 248, pp. 475–488, 2015.

Novitasari, Saifudin, and Junaidi, “Studi Karakteristik Daerah Aliran Sungai (DAS) Paloh Kabupaten Sambas,” J. Sains Mhs. Pertan., vol. 2, no. 2, pp. 1–9, 2012.




DOI: http://dx.doi.org/10.12962/j20861206.v38i3.19458

Refbacks

  • There are currently no refbacks.



Journal of Civil Engineering is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

View My Stats