Publisher

ITATSITATS

Journal Journal of Applied Sciences, Management and Engineering TechnologyJournal of Applied Sciences, Management and Engineering Technology Abstract

Coal is a deposit of plant fossils that has undergone a peat process over a long period of time. A company in Malinau Regency, North Kalimantan Province, requires replanning for the existing drainage system because its holding pond or sump, which is a former pit, will be re-mined. Therefore, this research re-plans the drainage system to overcome this problem. The methods for data processing comprised the Gumbel method, the Monobe equation, the Seyhan equation, and the calculations of open channels and holding pond dimensions, as well as pump capacity. The mine drainage system creates channels or ditches that function to prevent runoff water from entering the mining area. The channel capacity was 0.6 m3 /second, or 2,261 m3 /hour, with a large runoff of 0.146 m3 /second, or 63 m3 /hour. The channel would be made in a trapezoid shape. Meanwhile, the mine dewatering method used a pumping system to release water into the sump. Using 1 pump of MF-420EX, the total flow of water that could be pumped reached 50,537 m3 /hour with working hours of 20 hours. The sump capacity was 28,825 m3 in a trapezoid shape with dimensions of 95 m surface length, 70 m surface width, 85 m base length, 60 m base width, and 5 m depth.

Conclusion

The total discharge of runoff water is increased to 2.In catchment area I, it is 3,546 m3/hour, which will overflow into the research location.Meanwhile for catchment area 2 & 3 it is as large as 525 m3/hour which will overflow into the open channel.The open channel planned is trapezoidal in shape, with a capacity of 2,261 m3/hour.The planned main sump capacity will be able to accommodate 28,825 m3 of water, and the pump used is an MF-420EX type pump which operates for 20 hours per day, capable of releasing a discharge of 50,537 m3/day.

Future Research

Penelitian lebih lanjut dapat dilakukan untuk menganalisis efektivitas berbagai jenis material untuk pelapisan saluran terbuka guna mengurangi erosi dan sedimentasi, serta membandingkan biaya dan manfaatnya. Selain itu, studi komprehensif mengenai pengaruh perubahan iklim terhadap pola curah hujan di wilayah tersebut perlu dilakukan untuk memastikan perencanaan sistem drainase yang adaptif dan berkelanjutan. Terakhir, pengembangan model simulasi hidrologi yang terintegrasi dengan data geologi dan hidrogeologi dapat membantu mengoptimalkan desain sistem drainase tambang, memprediksi risiko banjir, dan mengevaluasi kinerja sistem dalam berbagai skenario operasional, sehingga memberikan informasi yang lebih akurat dan mendukung pengambilan keputusan yang lebih baik dalam pengelolaan air tambang.

Metadata

File size	300.11 KB
Pages	8
DMCA	Report