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All Journal Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics
Ahmad Fauzan Haryono
Program Studi Teknik Pertambangan, Fakultas Sains Dan Teknologi, Universitas Islam Negeri Syarif Hidayatullah Jakarta, Jalan. Ir. H. Djuanda No.95, Cempaka Putih, Ciputat, Kota Tangerang Selatan, Banten 15412, Indonesia
Earth & Planetary Sciences Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics

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Perancangan Sequence Backfill Di Lokasi Penambangan Bukit 7A Baru Studi Kasus PT. ANTAM, Tbk UBP Bauksit Tayan, Kabupaten Sanggau, Kalimantan Barat Ahmad Fathurrohman; A. Sylvan Erusani; Ahmad Fauzan Haryono
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics | Vol.2
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v2i2.13038

Abstract

Penimbunan kembali tanah penutup lahan bukaan bekas tambang harus dilakukan secara matang dan terencana, perencanaan penimbunan mencakup tahapan – tahapan yang sequential dan terukur jumlah volume dan waktunya. Hal ini dilakukan agar kegiatan penimbunan dapat meminimalisir dampak terhadap lingkungan serta menyesuaikan pada Peraturan Pemerintah (PP) No. 78 Tahun 2010 tentang Reklamasi dan Pascatambang. Perencanaan sequence backfill perlu mengetahui luas area penimbunan, elevasi awal sebelum penimbunan, kinerja alat yang digunakan untuk penimbunan, volume material penimbunan yang tersedia serta jam bekerja perusahaan yang tersedia. Pengolahan data dilakukan dengan menggunakan software Surpac dan AutoCAD. Hasil dari analisis yang dilakukan maka produktivitas alat penimbunan berupa 2 excavator adalah 440,77 LCM/Jam dan dibuat 3 sequence penimbunan backfill yang total volume penimbunannya adalah 143.807 LCM (Loose Cubic Meters) dan total volume topsoil 8.658,16 LCM . Masing – masing sequence terdiri dari, besar volume sequence I 52.418 LCM, besar volume sequence II 52.375 LCM, dan besar volume sequence III 39.014 LCM. Dengan jumlah waktu penimbunan 19,15 hari.
DETERMINATION OF MINING ZONING ANDESITE, SIRTU AND TRAS MATERIALS IN PURBALINGGA DISTRICT CENTRAL JAVA Ariyanto Ariyanto; Ahmad Fauzan Haryono; Dimas Chaidir Adinugroho
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics | Vol.3
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v3i2.17934

Abstract

Purbalingga Regency has quite a large amount of Andesite, Sirtu and Tras Digging Materials. So a research was carried out in Purbalingga Regency to assist the Ministry of Energy and Mineral Resources (ESDM) in Determining the Mining Permit Zoning. This research was conducted only in 5 districts, namely Karangrejo District, Bojongsari District, Bobotsari District, Mrebet District and Kutasari District.The potential of Andesite Excavation Material with 2,159,081,136BCM resources spread across Karangrejo District, Bojongsari District, Bobotsari District, Mrebet District, and Kutasari District. Sirtu with 14,859,100BCM resources scattered in Karangrejo District, Bobotsari District, Bojongsari District and Mrebet District. Meanwhile, Tras with 15,510,500BCM resources which are only scattered in Karangrejo District.The determination to get the permit is closely related to the 11 parameters that have been shown in map form. Each of these parameters has a rating, weight, and value and a ming process is carried out in order to determine whether the area is suitable for permits, eligible for conditional permits, and not worthy of permits. Scores 10-19.5 are directed to be granted permission, scores 20-29.5 are directed to be eligible for conditional permission, while  ≥ 30 are directed to be not granted permission.The potential that is directed to be eligible for a permit is andesite 1,038,841,000BCM, Sirtu 6,861,400BCM and tras 9,280,500BCM, the potential that is directed to be eligible for conditional permits is andesite 67,520,000, sirtu 4,675,000BCM and tras 1,180,000BCM, while the potential that is directed is not feasible The permits are andesite 1,052,720.0BCM, sirtu 3,226,700BCM and tras 5,050,000BCM.
Co-Authors A. Sylvan Erusani Ahmad Fathurrohman Ariyanto Ariyanto Dimas Chaidir Adinugroho