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All Journal Jurnal Himasapta Jurnal Manajemen Sistem Informasi Jurnal Pertambangan dan Lingkungan
Ericson, Ericson
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Computer Science & IT Earth & Planetary Sciences Energy Engineering Environmental Science

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ANALISIS DAN PERANCANGAN SISTEM INFORMASI ADMINISTRASI DISPOSISI SURAT BERBASIS WEB PADA DINAS PEKERJAAN UMUM DAN PERUMAHAN RAKYAT PROVINSI JAMBI Ericson, Ericson; Effiyaldi, Effiyaldi
Jurnal Manajemen Sistem Informasi Vol 3 No 4 (2018): JURNAL MANAJEMEN SISITEM INFORMASI
Publisher : LPPM Universitas Dinamika Bangsa

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Abstract

Development of today's technology lead government agencies to modernize public administration in order to accelerate and facilitate the completion of documents and government agencies, the administration is one important requirement in a government agency or organization in realizing kepemerintahaan good, one that is not supported by the system administration, namely the Department of Public Works and Public Housing Jambi, there are still some problems related to the administration of the letter, especially incoming mail as well as the disposition of the Head of Department to the units associated sometimes not until, with administration information system disposition web-based mail at the Department of Public Works and Public Housing Jambi this research resulted in the design and analysis system that describes the disposition letter with system development model used is the Unified Modeling Language use case diagram,
Efisiensi konsumsi bahan bakar berdasarkan kemiringan jalan angkut overburden: studi kasus PT Bhumi Sriwijaya Perdana Coal Tribuana, Evid; Megasukma, Yosa; Ericson, Ericson; Adhitya, Bagus
Jurnal Himasapta Vol 9, No 2 (2024): Jurnal Himasapta Volume 9 Nomor 02 Agustus 2024
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jhs.v9i2.11171

Abstract

PT Bhumi Sriwijaya Perdana Coal (BSPC) adalah perusahaan pertambangan yang mana dalam pengangkutan overburden menggunakan metode trucking dengan biaya pengangkutan mencapai 40% dari total biaya penambangan. Rerata konsumsi bahan bakar alat angkut pada bulan Januari hingga April 2023 melebihi standar perusahaan yakni 14,28 l/jam dari perencanaan yaitu 13,5 l/jam. Berdasarkan pendekatan regresi linier, faktor yang kuat mempengaruhi konsumsi bahan bahan bakar dalam studi ini adalah kemiringan jalan dengan nilai koefisien determinasi sebesar 0,99. Selama pengamatan pada bulan Mei 2023, terdapat 4 ruang jalan yang menyebabkan tingkat konsumsi bahan bakar lebih dari rencana sehingga menghasilkan rerata 13,7 l/jam. Simulasi perubahan kemiringan jalan yang melebihi 8% dilakukan sehingga diperoleh prediksi konsumsi bahan bahan bakar menjadi 13,28 l/jam. Perbaikan kemiringan jalan akan menghemat sebesar 0,4 l/jam (120 l/bulan) penggunaan bahan bakar unit dump truck.
Analisis Failure Time Menggunakan Data GPS Geodetic dengan Metode Inverse Velocity pada Lereng Disposal HW 123 South Tutupan PT. Adaro Indonesia, Kalimantan Selatan Sinaga, Hanswily; Siregar, Anggi Deliana; Ericson, Ericson
Jurnal Pertambangan dan Lingkungan Vol 5, No 2 (2024): Desember 2024
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpl.v5i2.28259

Abstract

PT. Adaro Indonesia is one of the largest coal companies in Indonesia with one of its production operations located in the southern tutupan pit area. This research was conducted to analyze the failure time that occurred in the outpit dump area of the southern tutupan pit. There is a development pattern behavior that occurs on the slope, namely linear reaching behavior, onset of failure (OOF), progressive reaching behavior, failure to post-failure reaching behavior. From the deformation, the slope movement status of the three GPS used (G21, G73, and G76) is known, namely safe conditions are at a speed of ˂ 50 mm, careful conditions are at a speed of 50 mm - 85 mm, alert conditions are at a speed of 85 mm - 105 mm, and dangerous conditions are at a speed of ˃ 105 mm. Furthermore, a back analysis of landslides was carried out from deformation data with different time windows. Landslide predictions with time windows (1 hour, 3 hours, 12 hours) each occurred on the dates (February 9, February 10, February 10) and time windows (1 day, 3 days, 6 days) occurred on the dates (February 11, February 12, February 14). So the 3-hour time window is appropriate. The 3-hour time window data will be used to carry out forward analysis of landslides based on deformation data taken from March 14 - April 30. From the results of the deformation, velocity, and inverse velocity calculations, the predicted time of the landslide occurred on June 12. Furthermore, the engineer can carry out an evacuation where the evacuation time is 6 hours before the landslide occurs.
Co-Authors Adhitya, Bagus Effiyaldi, Effiyaldi Sinaga, Hanswily Siregar, Anggi Deliana Tribuana, Evid Yosa Megasukma