PERENCANAAN TEKNIS SISTEM DEWATERING TAMBANG DI PIT PT ULIMA NITRA JOBSITE PT MUARA ALAM SEJAHTERA LAHAT SUMATERA SELATAN

PRANAJAYA, DHEO and Yusuf, Maulana and Abro, M. Akib (2013) PERENCANAAN TEKNIS SISTEM DEWATERING TAMBANG DI PIT PT ULIMA NITRA JOBSITE PT MUARA ALAM SEJAHTERA LAHAT SUMATERA SELATAN. Undergraduate thesis, Sriwijaya University.

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Abstract

PT Ulima Nitra merupakan salah satu kontraktor pertambangan yang berada di Sumatera Selatan. Secara umum lokasi tambang berada di daerah perbukitan dengan ketinggian antara 40 一 90 mdpl dengan curah hujan yang relatif sedang. Dalam metode penambangan surface mining yang diterapkan PT. Ulima Nitra,seiring kemajuannya tambang akan menyerupai cekungan besar. Air akan terkonsentrasi di dalam cekungan tersebut dan akan menghambat aktivitas penambangan . Air yang masuk ke lokasi penambangan sebagian besar berasal dari air hujan yang mengalir pada catchment area, untuk mengatasinya dilakukan dengan menerapkan system dewatering yang baik agar air tidak menggenangi tambang dan dewatering di pit PT Ulima Nitra, curah dan catchment areanya adalah 27,35 Ha. Pit PT Ulima Nitra membutuhkan sump yang dengan volume 18.125 m3. Berdasarkan perhitungan head total pompa adalah 66,6 head aktual adalah 42,47 m pada jalur main sump ke kolam pengendapan lumpur PT Ulima Nitra dengan kecepatan putaran mesin paling efisien sebesarl800 rpm.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Curah hujan, surface mining,catchment area, sump, head total
Subjects: T Technology > TN Mining engineering. Metallurgy > TN1-997 Mining engineering. Metallurgy
Divisions: 03-Faculty of Engineering > 31201-Mining Engineering (S1)
Depositing User: Mrs Furika Furika
Date Deposited: 19 Apr 2024 03:07
Last Modified: 19 Apr 2024 03:07
URI: http://repository.unsri.ac.id/id/eprint/143216

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