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All Journal Journals Mining Engineering : Bina Tambang JURNAL SWARNABHUMI
Yuliana Safitri
Universitas Negeri Padang
Humanities Earth & Planetary Sciences Education Environmental Science Social Sciences Other

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Analisis Manajemen Fleet Pada Kegiatan Produksi Batu Andesit Dalam Penerapan Metode Antrian di PT Koto Alam Sejahtera, Kabupaten Lima Puluh Kota Yuliana Safitri; Murad Murad
Journals Mining Engineering : Bina Tambang Vol 3, No 4 (2018): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1545.47 KB) | DOI: 10.24036/bt.v3i4.102255

Abstract

Abstract. PT Koto Alam Sejahtera is a private company engaged in the mining business, especially the Andesite stone. In the process of transporting andesite stones to the crusher, there is a dump truck queue and a long stand-by time on the dump truck, this can cause the productivity of the tool to be small so that the andesite stones production target of             30.000 ton/month is not achieved. This is due to the inefficient working time of mechanical devices. This production target was not achieved due to improper combination of tools, road width and road grade that did not meet the standards, causing queues or waiting times for transport on the front loading and at some road points. One way to achieve the production target is needed fleet management accordingly. Based on the results of the study, it can be concluded that the productivity of excavator Hitachi ZX-350 is 232,61 ton/hour and the productivity of dump truck Mitsubishi Fuso 220 PS is 47,30 ton/hour. The composition of the available equipment is 1 unit of excavator serving 5 units of dump trucks. Efforts to reduce the queuing time are to make improvements to the composition of the equitment MF=1. Fleet settings are based on method Antrian, that is 1 unit of loading equipment serves 4 units of transport equipment with a production of 38.485 ton/month.Keywords: Fleet Management, Method Queue, Match Factor, Production, Productivity, Dump Truck
PEMANFAATAN CITRA MULTI SPEKTRAL LANDSAT OLI 8 DAN SENTINEL-2A DALAM MENGANALISIS DEGRADASI VEGETASI HUTAN DAN LAHAN (Studi Kasus : Cagar Alam Rimbo Panti, Pasaman) Yuliana Safitri; Eggy Arya Giofandi
JURNAL SWARNABHUMI : Jurnal Geografi dan Pembelajaran Geografi Vol 4, No 2 (2019): Jurnal Swarnabhumi
Publisher : Geography Education Study Program, Faculty of Teacher Training and Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (736.66 KB) | DOI: 10.31851/swarnabhumi.v4i2.2950

Abstract

Perkembangan teknologi penginderaan jauh dapat membantu dalam menganalisis keadaan  lingkungan  seperti  perubahan  lahan,  persebaran  fauna,  menganalisis  kerapatan vegetasi, persebaran vegetasi sehat dan tidak sehat, degradasi lahan dan lainnya. Pemanfaatan citra Landsat OLI 8 (Resolusi spasial 30m) dan Sentinel-2A di lengkapi basic spektral dengan panjang gelombang yang relatif sempit yang dapat di terapkan pada kajian vegetasi, dengan (resolusi  spasial  10m  dan  20m).  Tujuan  dari  penelitian  ini  adalah  untuk  menganalisis degradasi  vegetasi,  mengklasifikasikan  tutupan  hutan  dan  lahan,  serta  menghitung  indeks kerapatan   vegetasi.   Metode   yang   digunakan   dalam   penelitian   ini   yaitu,   Normalized Difference  Vegetation  Index  (NDVI),  Object  Base  Image  Analyst  (OBIA),  dan  hasil  survei lapangan.  Normalized  Difference  Vegetation  Index  (NDVI)  digunakan  untuk  menentukan nilai indeks vegetasi, dimana daerah yang mengalami degredasi akan mengalami penurunan nilai spektral pada citra.  Object Base Image Analyst  (OBIA) dimanfaatkan untuk membuat peta  tutupan  lahan  dalam  mengklasifikasikan  jenis  tutupan  lahan.  Sedangkan  hasil  survei lapangan   dimamfaatkan   untuk   mengambil   sampel   dan   penyesuaian   klasifikasi   dengan kenyataan  dilapangan.
Co-Authors Eggy Arya Giofandi Murad Murad