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All Journal Indonesian Mining Journal Prosiding Temu Profesi Tahunan PERHAPI Indonesian Mining Journal
Handayana, Raden Haris
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Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Energy Engineering Environmental Science Materials Science & Nanotechnology

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DAMPAK HASIL PELEDAKAN DENGAN DETONATOR ELEKTRONIK MENGGUNAKAN METODE SEGMENTASI DAN NON-SEGMENTASI Handayana, Raden Haris; Alghifari, Mohamad Rifki; Salahudin, Sani; Carlo, Nasfryzal
Indonesian Mining Journal Vol 26 No 2 (2023): Indonesian Mining Journal, October 2023
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol26.No2.2023.1488

Abstract

Sebuku Tanjung Coal, a mining company, has a blasting location close tobuilding structures. This building is included in the Class 2 building on SNI 7571:2010 with a maximum peak vector sum (PVS) value of 3 mm/s or peak particle velocity (PPV) value of 3 - 7 mm/s at the frequency of 0-100 Hz. Several critical areas are located between 200 and 700 meters from the blasting location. The used initiation system is Hanwha Electronic Blasting System 2nd Generation (HEBS II), which uses HiMex 70 (emulsion) as an explosive type. In this paper, the tie-up design of blasting uses segment and non-segment methods to compare the results of blasting using the two methods. Based on 16 compared data points, the vibration results obtained using segment and non-segment had a value range of 2,767-15,102 mm/s. The average result of the digging time using the segment method is 10.9 seconds, while the non-segment method takes 10.3 seconds. The average size of fragmentation (D80) with the segment method is 49.1 cm, while the non-segment method is 45.4 cm.
KAJIAN BATU TERBANG UNTUK MENENTUKAN JARAK AMAN MINIMUM PELEDAKAN LAPISAN PENUTUP BATUBARA TERHADAP WILAYAH PERMUKIMAN Handayana, Raden Haris; Shodik, Fajar; Salahudin, Sani
Indonesian Mining Journal Vol 26 No 2 (2023): Indonesian Mining Journal, October 2023
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol26.No2.2023.1498

Abstract

Fly rock is a rock fragmentation that is thrown as a result of blasting. Such fragmentation that is thrown beyond the specified safe distance can cause a damage to the infrastructure, mechanical equipment and humans. This study aims to determine the safe radius of the fly rock that resulting from blasting residential area which that has a distance 200-300 m and has potentially distressing to cause damage. Calculating of the flying rock throwing distance is carried out theoretically and actually with orientation to the distance between spaces, the distance between burdens, minimum stemming height, minimum hole depth, powder factor, average charge blast hole and distance initial burdens. For theoretical calculations, the save distance is calculated by empirical methods and dimensional analysis. Results of the study shows that the maximum distance of the actual fly rock throw is 05.31 m and based on the predictions using the Cratering Method, the maximum distance of fly rocks is 172 m with a safety factor of 2 and the maximum distance of fly rocks is 199.04 m with a safety factor of 2. Based on the actual and predicted data above, it is not safe for blasting locations that is less than 200 m from residential areas, that refers to the safe radius threshold based on the regulation of the Minister of Energy and Mineral Resources No. 1827 K/30/MEM/2018.
PERBANDINGAN BIAYA OPERASIONAL SURFACE MINER DAN PENGEBORAN & PELEDAKAN Handayana, Raden Haris; Pratama, Panji; Lubis, Jihan Farhan; Salahudin, Sani
Indonesian Mining Journal Vol 27 No 1 (2024): Indonesian Mining Journal, April 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol27.No1.2024.1497

Abstract

The method of rock breakage is commonly blasting. A few mining companies in Indonesia with facilities near community residences use alternative methods to breaking rock; one of them is using a surface miner. Aspects considered when choosing the method include economic aspects, especially operating costs. In this study case, the size of material that can continue on the next process is ≤ 400 mm; material from surface miner production is at the target; on blasting results, the fragmentation above the target is reduced using a hydraulic breaker; the initiating systems use an electronic detonator (HEBS II) and a non-electric detonator. This difference will affect the cost of the drill and blast. Based on calculated project data, surface miner operating costs are more costly, with an operating cost per ton of USD 1.16 compared with drill and blast methods including hydraulic breaker costs on the initiation system using an electronic detonator (HEBS II) of USD 0.88 per ton and non-electric operating costs of USD 0.83 per ton.
PERBANDINGAN BIAYA OPERASIONAL SURFACE MINER DAN PENGEBORAN & PELEDAKAN Handayana, Raden Haris; Pratama, Panji; Lubis, Jihan Farhan; Salahudin, Sani
Indonesian Mining Journal Vol 27 No 1 (2024): Indonesian Mining Journal, April 2024
Publisher : Balai Besar Pengujian Mineral dan Batubara tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol27.No1.2024.1497

Abstract

The method of rock breakage is commonly blasting. A few mining companies in Indonesia with facilities near community residences use alternative methods to breaking rock; one of them is using a surface miner. Aspects considered when choosing the method include economic aspects, especially operating costs. In this study case, the size of material that can continue on the next process is ≤ 400 mm; material from surface miner production is at the target; on blasting results, the fragmentation above the target is reduced using a hydraulic breaker; the initiating systems use an electronic detonator (HEBS II) and a non-electric detonator. This difference will affect the cost of the drill and blast. Based on calculated project data, surface miner operating costs are more costly, with an operating cost per ton of USD 1.16 compared with drill and blast methods including hydraulic breaker costs on the initiation system using an electronic detonator (HEBS II) of USD 0.88 per ton and non-electric operating costs of USD 0.83 per ton.
PREDICTION AND REDUCTION OF BACKBREAK IN BLASTING OPERATIONS USING RANDOM FOREST METHOD AT PAMUBULAN LIMESTONE QUARRY Handayana, Raden Haris; Hartanto, Adrian; Lubis, Jihan Farhan
Prosiding Temu Profesi Tahunan PERHAPI 2023: PROSIDING TEMU PROFESI TAHUNAN PERHAPI
Publisher : PERHAPI

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Abstract

Backbreak pada operasi peledakan merupakan hasil yang tidak diinginkan yang menyebabkan terbentuknya retakan di belakang barisan terakhir peledakan. Hal ini menyebabkan tidak terciptanya smooth freeface, mengurangi efisiensi pengeboran, dan fragmentasi boulder pada peledakan berikutnya. Untuk mengatasi masalah ini, dilakukan upaya untuk memprediksi dan mengurangi backbreak dengan mempertimbangkan berbagai parameter peledakan seperti sifat batuan, burden, spasi, kedalaman lubang, stemming, powder column, powder factor, total lubang, total baris, desain peledakan, interhole timing, interrow timing, back row control, dan time windows. Karena kompleksitas interaksi di antara parameter-parameter tersebut, dalam makalah ini digunakan metode Random Forest yang terdiri dari banyak pohon keputusan. Ditemukan bahwa koefisien determinasi antara backbreak aktual dan prediksi adalah 83,89%, sedangkan kesalahan relatifnya adalah 13,12%+/- 1,30%. Dengan menerapkan hasil dari penelitian ini, backbreak dapat dikurangi dari 149,38 menjadi 50,04 cm.
IMPACT THE RESULT OF BLASTING WITH ELECTRONIC DETONATOR USING SEGMENTATION AND NON-SEGMENTATION METHODS Alghifari, Mohamad Rifki; Handayana, Raden Haris; Salahudin, Sani
Prosiding Temu Profesi Tahunan PERHAPI 2023: PROSIDING TEMU PROFESI TAHUNAN PERHAPI
Publisher : PERHAPI

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Abstract

Salah satu dampak yang ditimbulkan akibat peledakan overburden batubara adalah getaran. Getaran ini dihasilkan dari sisa energi peledakan yang merambat pada struktur batuan, yang dapat menyebabkan kerusakan pada bangunan. Di Indonesia, pemerintah mengatur pembatasan getaran pada SNI 7571:2010. Dalam hal ini Sebuku Tanjung Coal yang merupakan perusahaan tambang yang melakukan kegiatan peledakan untuk menghilangkan lapisan tanah penutup batubara dan lokasi peledakan dekat dengan struktur bangunan (rumah umum), khususnya di Pit T3. Struktur gedung ini termasuk dalam gedung Kelas 2 pada SNI 7571:2010 dengan nilai Peak Vector Sum (PVS) maksimal 3 mm/s atau nilai Peak Particle Velocity (PPV) 3-7 mm/s pada frekuensi 0- 100 Hz. Jarak beberapa critical area dari lokasi peledakan sekitar 200-700 m. Sistem inisiasi yang digunakan adalah Hanwha Electronic Blasting System 2nd Generation (HEBS II) kombinasi HiMex 70 (Emulsion) sebagai bahan peledak. Pada makalah ini, desain tie-up peledakan menggunakan metode segment dan non- segment untuk membandingkan hasil peledakan dari kedua metode tersebut. Berdasarkan 16 perbandingan data yang diperoleh, diperoleh hasil vibrasi menggunakan segmen dan non segmen dengan rentang nilai 2,767-15,102 mm/s. Hasil rata-rata waktu penggalian dengan metode segmen adalah 10,9 detik, sedangkan metode non-segmen adalah 10,3 detik. Ukuran rata-rata fragmentasi (D80) dengan metode segmen adalah 49,1 cm, sedangkan metode non-segmen adalah 45,4 cm.
GROUND VIBRATION REDUCTION USING SIGNATURE HOLE ANALYSIS WITH ELECTRONIC DETONATOR APPLICATION, STUDY CASE LIMESTONE QUARRY, BAYAH BANTEN, INDONESIA Handayana, Raden Haris; Lubis, Jihan Farhan
Prosiding Temu Profesi Tahunan PERHAPI 2023: PROSIDING TEMU PROFESI TAHUNAN PERHAPI
Publisher : PERHAPI

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Abstract

Getaran tanah merupakan salah satu dampak negatif yang terjadi akibat pelepasan energi sisa pada proses peledakan. Menjadi isu yang lebih besar ketika nilai getaran tanah cukup tinggi dan dirasakan oleh warga di sekitar lokasi peledakan dan memunculkan isu masyarakat yang berkesimpulan bahwa getaran tanah akibat peledakan akan menyebabkan kerusakan konstruksi bangunan. Detonator non elektrik diaplikasikan pada proses peledakan yang dilakukan di tambang batugamping PT. Lebak Energi Nusantara di Lebak, Bayah Banten, Indonesia. Dari aplikasi peledakan saat ini, nilai getaran tanah dicapai di atas nilai standar yang ditetapkan pemerintah berdasarkan SNI 7571:2010, yaitu dibatasi pada PVS 5 mm/s untuk bangunan dengan pondasi standar menggunakan pasangan bata dan mortar yang diikat dengan konrit beton. . Tercatat nilai puncak getaran tanah sebenarnya tercatat dengan nilai 7,07 mm/s sudah melebihi batasan nilai getaran tanah pada jarak 400 m dari gedung terdekat. Dengan menggunakan Electronic detonator dan metode signature analysis, PPV yang dihasilkan dari ledakan secara signifikan berkurang menjadi di bawah 3 mm/s. Dari total rekaman aktual, tingkat getaran rata-rata menggunakan detonator elektronik adalah 1.094 mm/s dengan variasi jarak yang berbeda. Deviasi simulasi delay maksimal 3%, simulasi delay dihubungkan dengan jarak pengukuran.
Co-Authors Adrian Hartanto, Adrian Alghifari, Mohamad Rifki Lubis, Jihan Farhan Nasfryzal Carlo panji pratama Salahudin, Sani Shodik, Fajar