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All Journal Journals Mining Engineering : Bina Tambang BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) JIPF (Jurnal Ilmu Pendidikan Fisika)
Rusli HAR
Universitas Negeri Padang
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Physics

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Identifikasi Bahaya, Penilaian Risiko Terhadap Keselamatan Kerja Coalgetting Di Tambang Terbuka PT. Bima Putra Abadi Citranusa Lahat, Desa Lubuk Betung, Kecamatan Merapi Selatan, Provinsi Sumatera Selatan. ANGGA YUJA WIGUNA; Fadhilah Fadhilah; Rusli HAR; Admizal Nazki
Journals Mining Engineering : Bina Tambang Vol 6, No 4 (2021): 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.v6i4.113690

Abstract

Abstrak. PT. Bima Putra Abadi Citranusa is a subsidiary of the Bomba Group, this company is a domestic mining company engaged in coal mining. PT. BPAC started operations in July 2020 using the open pit mining method. The accident rate at PT. Bima Putra Abadi Citranusa in 2020 were 12 accidents that occurred in September – December 2020. The data collection technique used a work activity questionnaire. The results of data collection that have been obtained from surveys at mining sites will be arranged systematically and can be used as material for analysis in seeing the level of work safety (K3) in the process of mining activities using the HIRARC method. Identification of hazards and risks 38,23% is a hazard condition that has the lowest severity there are 13 conditions contained in the process of mobilizing heavy equipment, the process of transporting coal with DT, the process of dumping in the stock rom, the pump installation process, the process of driving the LV unit. Identification of hazards and risks 35,29% is a hazard condition that has moderate severity there are 12 hazard conditions contained in the process of mobilizing heavy equipment, loading process using excavators, coal hauling process with DT, dumping process in stock rom, pump installation process, process driving the LV unit Identification of hazards and risks 14,70% is a hazard condition that has a significant severity there are 5 hazard conditions contained in the process of transporting coal with DT, the process of driving an lv unit, activities at night activities. Identification of hazards and risks of 11.76% is a hazard condition that has a high severity level, there are 4 conditions contained in the process of loading with an excavator into the DT, the process of transporting coal with the DT, the pump installation process, activities at night. Kata kunci: Coal Mining, Hazard Identification And Safety Risk Assessment, HIRARC, Hazard Potential.
PERENCANAAN SISTEM PENYALIRAN TAMBANG, STUDI KASUS : PIT TIMUR BUKIT WRANGLER PT. ANTAM TBK. UNIT BISNIS PERTAMBANGAN NIKEL SULAWESI TENGGARA Aulia Mutiara Chakti; Rusli HAR
Journals Mining Engineering : Bina Tambang Vol 6, No 2 (2021): 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.v6i2.111702

Abstract

Abstract. Based on the data analysis of rainfall at 2010-1019, obtained a rainfall plan is 30,105 m/day with different rain intensiti in each catchmen area with a return period of 25 years. The location of the reasearch is Pit Bukit Wrangler PT. Antam, in 2020 it has 2 catchmen areas with different areas, the area for the catchmen area in area 1 is 0.052959 km² and 0.1186071 km² in area II. Total discharge is 0.3390 m/second in catchmen area I and 0.4803 m²/second in catchmen area II, while the volume of groundwater that enters the Pit Bukit Wrangler is 0.122 m/second. The are 2 open channels which have different dimensions. The open channel I has a wet cross-sectional area of 1.411 m, a wet circumference is 3.149, a hydraulic radius is 0.448 m, and a slope of a channel is 2.228 m. While in open channel II it has a wet cross-sectional area is 1.819 m, a wet circumference is 3.58 m, the hydraulic radius is 0.508 m, and the slope of the channel is 1.039 m. At the Pit Bukit Wrangler there is only one sump and there is one Kubota NS-100 pump unit, but after calculating the current total pump head, the total head currently exceeds actual pump head total. The total head of the pump work and to avoid overflow of water that is in the sump to the floor of the mining pit, and additional 6 pump units have been made. The Pit Bukit Wrangler has one main settling pond with different capacities for each compartment. The settling pond volume at Bukit Wrangler is 2,588.116 m and the total volume deposited solids is 3,864.11 m³/day, and the time required for dredging activities is about 669.78 days or 21 month in one dredging.Key Word : Rainfall, Catchmen Area, Pump, Sump, Sediment Pond
Studi Penempatan Sumur Resapan Berdasarkan Nilai Laju Infiltrasi, Kualitas Fisik Air dan Tekstur Tanah pada DAS Batang Kuranji Kota Padang Muhammad Fadli; Rusli HAR
Journals Mining Engineering : Bina Tambang Vol 6, No 1 (2021): 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.v6i1.111807

Abstract

Abstract. Population growth in Padang City in 2007-2017 has increased from 838,190 people to 927,168 people (BPS Kota Padang, 2018). With this increase, the need for land / shelter and water needs is also increasing. This has resulted in high development, both in the city center and in the eastern suburbs. In addition, there is also a change in land use functions from forest areas, agricultural land, water catchment areas and cultural heritage lands to residential areas dominated by houses and concrete roads covering the ground. So that the reduced protected areas that function as water catchment areas and sources of clean water. Then with the rainfall in Padang City which is quite high, namely 4,661 mm³ / year, it causes puddles of water every time it rains. Therefore, it is necessary to plan the placement of infiltration wells around the Batang Kuranji watershed based on the value of infiltration rate, water physical quality, and soil texture.The research was conducted at 29 points that spread throughout the Batang Kuranji watershed. The data obtained are primary data, namely data on the physical quality of water (pH, redox potential, conductivity, TDS, salinity, resistivity, DO) and coordinate data.Based on the infiltration data, the average value of infiltration is 0.045710 cm / minute which is included in zone VI / E which is classified as low (<0.1 cm / minute). After conducting research with statistical analysis, physical water quality, rock lithology conditions, ground water level, and land use in the Batang Kuranji watershed, the placement of infiltration wells spread across almost all parts of the Batang Kuranji watershed which is a residential area, public service facilities. , industrial areas and fields. The number of infiltration wells to be placed is 9 points.Keywords: Infiltration Well, Infiltration Rate, Physical Quality of Water, Lithology of Rocks, Land Use.
Efektifitas Pemanfaatan Sumur Resapan dan Biopori sebagai Artificial Recharge untuk Meresapkan Air Hujan ke dalam Lapisan Akuifer Dangkal pada DAS Batang Kuranji Kota Padang Alviansyah Alviansyah; Rusli HAR
Journals Mining Engineering : Bina Tambang Vol 6, No 2 (2021): 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.v6i2.111708

Abstract

Abstract. The population density in Batang Kuranji wathershed caused land clearing to build new settlement areas. However, this land clearing caused a new problem; causing a reduction of green areas that function as rainwater catchment areas. It also can cause an area to have the potential for flooding. Furthermore, it can decrease the quantity of groundwater. In order to increase the effort to absorb rainwater into the soil in Batang Kuranji watershed, so that the artificial recharge was carried out. The method used was the construction of absorption wells and biopores. This research was conducted to calculate the volume of rainwater that can be absorbed by absorption wells and biopores in certain rainy conditions in Batang Kuranji watershed. Besides that, hydraulic conductivity testing was carried out in order to know how the state of the soil texture in the study area. This study used an experimental method that was carried out in Batang Kuranji watershed, Padang City. Based on the insitu soil hydraulic conductivity test, the average hydraulic conductivity value in the absorption wells area was 1.925 x 10-3 cm/second. This value described that the soil in the study area was classified as a relatively fast soil classification in absorbing water. After conducting the research with three measurements, it was found that the total water discharge absorbed by the gutter water absorption wells was 0,215 m 3 , for open absorption wells was 0,222 m 3 , and for biopores was 0,0104 m 3 .Keywords: Artificial Recharge, Absorption Wells, Biopores, Hydraulic Conductivity
Treatment Of Acid Mine Drainage Using Fly Ash, Bottom Ash, And Lime Mixed Fadhilah Fadhilah; Faiz Ramadhan; Rusli HAR
JIPF (Jurnal Ilmu Pendidikan Fisika) Vol 7, No 2 (2022): May 2022
Publisher : STKIP Singkawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26737/jipf.v7i2.2660

Abstract

Coal mining will form acid mine drainage in former open pit mines. If acid mine water enters community waters, it will cause disturbance to biota and decrease water quality. Sawahlunto is one of the cities in Indonesia that has a coal mining area located near a settlement. With the acid mine drainage, if it rains, the water will flow into the river where the water is used by the community. Part of the coal is used as fuel for the Sijantang Sawahlunto PLTU. The fuel also produces waste in the form of combustion ash known as fly ash and bottom ash (FABA). This study uses FABA to neutralize acid mine water to meet the community's irrigation water needs. This research will determine the appropriate mass of FABA in neutralizing acid mine drainage. Acid mine water comes from the former mining pit of PT. High Guguak Coal with a pH of 2.88. Then the acid sample is brought to the laboratory to be mixed with FABA and lime. 4.98 grams of FABA with 0.02 lime can neutralize 200 mL of acid mine drainage and change the pH from 2.88 to 7.91. FABA can be included in the settling pond to neutralize acidic water before it is released into community waters.
Rancangan Teknis Dan Analisis Biaya Reklamasi Pada Area In Pit Dump X Site Pulau Pakal PT. Aneka Tambang Tbk. UBPN Maluku Utara Hafizurahman Dwi Saputra; Rusli HAR; Mulya Gusman; Tri Gamela Saldy
Journals Mining Engineering : Bina Tambang Vol 8, No 1 (2023): 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.v8i1.122149

Abstract

PT. Antam Tbk. UBPN Maluku Utara has converted a former mining land into an in-pit dump for the disposal of low-grade cover soil and materials. If the area is already covered by cover soil, the area must be immediately reclaimed. Special treatment and attention are required in handling waste materials in the X in-pit dump area, as the waste material belongs to PAF material which has the potential to cause acid rock drainage problems. Based on the calculation, the bench width is 3.5 m, the single slope slope is 350, the height is 8 m and the backslope is 5%. Based on measurements, the area of stage 1 is 19,537.182 m2, stage 2 is 21,537.501 m2 and stage 3 is 13,086.461 m2. From the calculation of material 1volume, different results were obtained between the existing landfill plan, with the estimated regrading completion time ranging from 37 to 151 days, and for 19 days for revegetation in stage 1, stage 2 for 24 days and stage 3 for 13 days. For the check dump, the total volume is 10,565.62 m3 with a completion time of 14 days. The total reclamation cost ranges from Rp 451,223,407 to the largest Rp 35,365,018,549.
PEMETAAN KEMAJUAN LUBANG BUKAAN TAMBANG BAWAH TANAH PT. DEMPO MAJU CEMERLANG, KECAMATAN IV JURAI, KABUPATEN PESISIR SELATAN, PROVINSI SUMATERA BARAT Hanifa Octaviani; Rusli HAR
Journals Mining Engineering : Bina Tambang Vol 8, No 2 (2023): 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.v8i2.123653

Abstract

Abstract.  PT. Dempo Maju Cemerlang, located in Nagari Tambang IV Jurai District, Pesisir Selatan Regency, West Sumatra Province, is a company engaged in ore (gold) mining. The existence of ore in the exploitation area is in the form of veins (quartz veins) that are elongated and vertical. The mining process of PT. Dempo Maju Cemerlang usesmethods Shrinkage and, Glory Hole namely mining by creating levels. Between the levels are made stopes or rooms. In the process of extracting the ore it is crushed using themethod over hand (digging upwards) and allowed to gather in the stope. Ore mining is carried out in a horizontal incision starting from the bottom leading upwards through a manway. Mapping the progress of the opening holes that will be carried out is using themethod terrestrial with measuring total stations. Themethod terrestrial is a strategy or technique of obtaining data about objects or phenomena on the earth by direct contact or measuring directly on the object or phenomenon of the study. Retrieval of data using themethod terrestrial aims to map the progress of the underground mine openings and will obtain the layout of the underground mine openings of PT. Dempo Maju Cemerlang that can be analyzed and the amount of progress in the underground mine will be known.Keywords: Mapping, Terrestrial, Mining Progress, Total station      
PREDIKSI FRAGMENTASI PELEDAKAN MENGGUNAKAN METODE KUZ-RAM DAN METODE IMAGE ANALYSIS DI BUKIT KARANG PUTIH PT. SEMEN PADANG Rahma Febriani; Rusli HAR
Journals Mining Engineering : Bina Tambang Vol 8, No 2 (2023): 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.v8i2.125146

Abstract

Limestone has massive and hard properties so that for production it is necessary to handle it by breaking up the rock mass. Separation of the rock mass is carried out by drilling and blasting which aims to split the rock according to the size of the rock fragmentation that has been planned. One of the factors for the success of a blasting operation is the size of the resulting rock fragmentation. where, later the size of the resulting fragmentation will affect the removal and disassembly of the blasted material. The company has a fragmentation target of no more than 15% with a size of ± 80 cm. The percentage of boulder from the actual results of blasting is ± 28%, thus disturbing the performance of the loading and unloading equipment to be ineffective and can result in production targets not being achieved. This research aims to determine the percentage size of fragmentation resulting from blasting activities theoretically and using Split Desktop Software. The results of this study are expected to be able to provide information to what extent the success of the blasting carried out by PT. Semen Padang, so that the company can determine the proper blasting geometry to use.The method used in analyzing the results of blasting fragmentation is using the Kuz Ram method and Spilt Desktop Software. The Kuz-Ram method pays close attention to the size of blasted rock fragmentation. In addition, analysis with the Kuz-Ram model is based on rock factor parameters, rock volume and explosives used. To find out the level of rock fragmentation resulting from blasting, you can use the Image Analysis Method, namely Split Desktop Software. Based on the data analysis performed, the percentage of fragmentation calculated using the split desktop software is 74.12% with a boulder percentage of 25.88%. Meanwhile, the prediction of fragmentation resulting from the Kuz-ram model is 71.98% with a boulder percentage of 28.02%
The TESTS OF pH, CONDUCTIVITY, TOTAL DISSOLVED SOLIDS, SALINITY AND TURBIDITY IN THE BATANG ARAU RIVER SURROUNDING, PADANG CITY-WEST SUMATRA Rusli HAR; Aprisal; Isril Berd; Lambok M. Hutasoit; Denny Akbar Tanjung
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 10 No. 1 (2023): August
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v10i1.9642

Abstract

Humans need fresh water for many functions, including cleaning, irrigating plants, drinking, cooking, industrial uses, and more. It cannot be denied that the excessive exploitation of the environment by humans is the cause of the current decline in water quality. This study aims to test water quality such as pH, conductivity, total dissolved solids, salinity, and turbidity. The research method uses quantitative methods. The research area was taken from 10 subdistricts around the Arau River Basin. The sample is measured using a predetermined measuring instrument. Based on the test results from all research areas, several parameters for testing water quality meet the standards of the 2010 Ministry of Health Regulations, such as the pH test except for the Indarung and Lubuk Begalung sub-districts. and East Padang. The Total Dissolved Solids test in all areas is in good water standard except for Koto Tangah. The salinity test for all areas met the requirements for water quality standards except for the West Padang sub-district and the Turbidity test showed that all areas had turbidity values > 5 NTUs..
Kajian Keserasian (Match Factor) serta Produktivitas Alat Gali Muat dan Alat Angkut pada Kegiatan Produksi Pit Main Ridge di PT J Resources Bolaang Mongondow Site Bakan Abdul Razak; Rusli HAR; Rudy Anarta
Journals Mining Engineering : Bina Tambang Vol 10, No 1 (2025): Journals Mining Engineering: Bina Tambang (On Progress)
Publisher : Departemen Teknik Pertambangan FT UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/bt.v9i3.129043

Abstract

Co-Authors Abdul Razak Admizal Nazki Ahmad Fauzan Alviansyah Alviansyah ANGGA YUJA WIGUNA Aprisal Aprisal, Aprisal Aulia Mutiara Chakti Denny Akbar Tanjung Dian Kurnia Dicky Maryand Dwi Hariana Pane Ermaningsih Ermaningsih Evansharsal Suedi Fadhilah Fadhilah Faiz Ramadhan Fajar Inaqtiyo Fajar Inaqtiyo Zalaff Fajar Rofiescha Hafizurahman Dwi Saputra Hanifa Octaviani Harizona Aulia Rahman Heri Prabowo Hero Willy Ikhsan Ordheo Ilham Yufahmi Isril Berd Lambok M. Hutasoit Madhatillah Madhatillah Mendoza Mendoza Mona Mona Muhammad Fadli Mulya Gusman Qiratul Aini Rahma Febriani Raimon Kopa Randa Septian Putra Randi Alvino Zulfa Rendra Aulia Pratama Resty Prasuryani Riri Rahmahwati Joni Rizka Mutiara Rizky Ananda Rudy Anarta Saldy, Tri Gamela Tamrin Kasim Welly Handa Nuraga Yosia Yoandika Zulvi