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All Journal Journals Mining Engineering : Bina Tambang Kegiatan Positif : Jurnal Hasil Karya Pengabdian Masyarakat
Putri Pasaribu
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Evaluasi Teknis Geometri Peledakan Terhadap Fragmentasi Batu Gamping Di PT. Indocement Tunggal Prakarsa Tbk, Di Desa Palimanan Barat, Kecamatan Gempol, Kabupaten Cirebon, Jawa barat Putri Pasaribu; Dedi Yulhendra, S.T, M.T
Journals Mining Engineering : Bina Tambang Vol 7, No 2 (2022): Journals Mining Engineering: Bina Tambang
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v7i2.119051

Abstract

Abstract. PT. Indocement Tunggal Prakarsa Tbk is a producer engaged in limestone mining, which is located in the village of West Palimanan, Gempol District, Cirebon Regency, West Java. The mining method used by PT. Indocement Tunggal Prakarsa Tbk is an open pit mining system, using the Quarry mining method. From the results of the author's observations at PT. Indocement Tunggal Prakarsa Tbk saw a lot of fragmentation resulting from blasting which resulted in boulder. The size of the boulder based on company standards is 50 cm with the percentage of rock fragmentation resulting from blasting 50 cm at PT. Indocement Tunggal Prakarsa Tbk is still relatively high at around ± 30%, while the fragmentation expected by PT. Indocement Tunggal Prakarsa Tbk < 50 cm with a blast yield of 80%. This study aims to design the optimum blasting geometry to reduce the percentage of boulder so that the jaw crusher specifications are met and do not increase the cost of renting the breaker unit again. The research method is carried out by providing the results of the analysis of the Kuz-Ram method. Then one of the proposed geometries is chosen which is better while the proposed geometry is given, namely Burden 2 m, Spacing 2.5 m, Stemming 2.2 m, Subdrilling 0.19 m, Level height 5,8 m, Depth of the blast hole 6.68 m, Powder column 4.4 m, Powder factor 0.59, Kuzram Fragmentation 20 %.
Bersama Wujudkan Lingkungan Bersih dan Indah di Desa Hutanamra melalui Kegiatan Gotong Royong Imelda Sihombing; Aryati Ops; Yolanda Panjaitan; Maria Silaban; Nadya Sianturi; Debora Dongoran; Santa Tamba; Putri Pasaribu
Kegiatan Positif : Jurnal Hasil Karya Pengabdian Masyarakat Vol. 2 No. 4 (2024): Desember : Kegiatan Positif : Jurnal Hasil Karya Pengabdian Masyarakat
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/kegiatanpositif.v2i4.1414

Abstract

This research aims to create a clean and beautiful environment in Hutanamora Village through gotong royong activities, which increase the value of togetherness and care for the environment. The research used a participatory approach that actively involved the village community in the planning, implementation and evaluation of events. Environmental cleaning, waste management, and greening of the village's strategic areas were the focus of the gotong royong program. The results showed that gotong royong not only improved the cleanliness and beauty of the environment but also increased the sense of unity and cooperation among residents. In addition, the community is increasingly aware of the importance of protecting the environment. So, gotong royong is a great solution to make the environment clean and beautiful. It also builds the character of a community that cares and is responsible for environmental sustainability.
Co-Authors Aryati Ops Debora Dongoran Dedi Yulhendra Imelda Sihombing Maria Silaban Nadya Sianturi Santa Tamba Yolanda Panjaitan