Salwa, Zahro Zakiyatus (2025) ANALISIS PENGARUH KONDISI JALAN ANGKUT TERHADAP FAILURE RATE DAN FUEL CONSUMPTION HAULER PT BUMA JOBSITE LMO. Skripsi thesis, UPN Veteran Yogyakarta.
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Abstract
ABSTRAK
ANALISIS PENGARUH KONDISI JALAN ANGKUT
TERHADAP FAILURE RATE DAN FUEL CONSUMPTION
HAULER PT BUMA JOBSITE LMO
Oleh
Zahro Zakiyatus Salwa
NIM: 112210120
(Program Studi Sarjana Teknik Pertambangan)
Kondisi jalan angkut yang rusak serta tidak sesuai standar dapat mempercepat
kerusakan komponen alat angkut, yang berdampak pada meningkatnya laju
kegagalan (failure rate) serta konsumsi bahan bakar. Penelitian ini bertujuan untuk
mengetahui pengaruh kondisi jalan angkut terhadap failure rate dan fuel
consumption alat angkut tipe Caterpillar 777D, 785C, dan 789C di PT BUMA
Jobsite Lati Mine Operation (LMO). Data diperoleh melalui pengamatan langsung
dan dokumentasi perusahaan selama periode Maret–April 2025, mencakup data
kerusakan jalan, dimensi jalan, data kerusakan unit, dan volume bahan bakar.
Perhitungan failure rate dilakukan menggunakan parameter hasil estimasi dari
distribusi Weibull, Lognormal, dan Eksponensial. Konsumsi bahan bakar didapat
dari data sekunder perusahaan serta dihitung berdasarkan efisiensi kerja dan
kebutuhan rimpull unit. Hasil penelitian menunjukkan bahwa setelah perbaikan
surface jalan, terdapat penurunan total resistance, perubahan laju kegagalan berupa
kenaikan serta penurunan failure rate. Selain perubahan laju kegagalan, terdapat
peningkatan nilai Time Between Failure (TBF) masing-masing alat. Berdasarkan
hasil Paired T-Test dan Wilcoxon Sign-Rank Test, perbaikan jalan terbukti
berpengaruh terhadap failure rate alat angkut. Pengaruh tidak selalu positif sehingga
dapat disimpulkan bahwa perbaikan jalan tidak selalu memberikan dampak positif,
tergantung pada faktor-faktor eksternal seperti intensitas operasi, usia alat, dan
manajemen perawatan. Selain itu, kondisi jalan angkut juga. Berdasarkan hasil
analisis regresi linear berganda, setiap kenaikan 1% pada Rolling Resistance
meningkatkan konsumsi bahan bakar sebesar 8,99 liter/jam, Grade Resistance
sebesar 4,441 liter/jam, dan setiap peningkatan 1 ton pada GVW meningkatkan
konsumsi bahan bakar sebesar 0,3114 liter/jam.
Kata kunci: Failure rate, konsumsi bahan bakar, alat angkut, jalan tambang
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ABSTRACT
ANALYSIS OF HAUL ROAD CONDITION’S IMPACT ON
HAULER FAILURE RATE AND FUEL CONSUMPTION AT PT
BUMA LMO
By
Zahro Zakiyatus Salwa
NIM: 112210120
(Mining Engineering Undergraduated Program)
Damaged and substandard haul road conditions can accelerate component failure
in haul trucks, resulting in increased failure rates and fuel consumption. This study
aims to determine the effect of haul road conditions on the failure rate and fuel
consumption of Caterpillar 777D, 785C, and 789C hauling units at PT BUMA
Jobsite Lati Mine Operation (LMO). Data were obtained through direct field
observation and company documentation during the period of March to April 2025,
covering road damage data, road dimensions, equipment failure records, and fuel
volume. Failure rate calculations were based on parameter estimations from
Weibull, Lognormal, and Exponential distributions. Fuel consumption was
obtained from secondary company data and calculated based on operational
efficiency and unit rimpull requirements. The results showed that after road surface
repairs, total resistance decreased, and the failure rate either increased or
decreased depending on the unit. In addition, the Time Between Failure (TBF)
increased across all units. Based on the Paired T-Test and Wilcoxon Sign-Rank
Test, road repairs were proven to influence the failure rate of haul trucks. However,
this influence was not always positive, indicating that road improvements do not
consistently produce better outcomes, as they are affected by external factors such
as
operating intensity, equipment age, and maintenance management.
Furthermore, haul road conditions significantly affected fuel consumption. Based
on multiple linear regression analysis, every 1% increase in Rolling Resistance
raises fuel consumption by 8.99 L/h, Grade Resistance by 4.441 L/h, and every 1
ton increase in Gross Vehicle Weight (GVW) increases fuel consumption by 0.3114
L/h.
Keywords: Failure rate, fuel consumption, mine haul truck, haul road
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| Item Type: | Tugas Akhir (Skripsi) |
|---|---|
| Uncontrolled Keywords: | Failure rate, fuel consumption, mine haul truck, haul road |
| Subjek: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Fakultas Teknologi Mineral dan Energi > (S2) Magister Teknik Pertambangan |
| Depositing User: | Eko Yuli |
| Date Deposited: | 20 Oct 2025 08:52 |
| Last Modified: | 20 Oct 2025 08:52 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/44589 |
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