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PELATIHAN DAN SOSIALISASI TEKNOLOGI PEMETAAN DALAM MITIGASI BENCANA BANJIR KOTA PANGKALPINANG irvani Fachruddin; EPSB Taman Tono; Janiar Pitulima
LOGISTA - Jurnal Ilmiah Pengabdian kepada Masyarakat Vol 4 No 1 (2020)
Publisher : Department of Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Andalas Kampus Limau Manis - Padang, Sumatera Barat Indonesia-25163

Kota Pangkalpinang memiliki topografi relatif rendah dan berbatasan dengan laut di bagian timur. Pendangkalan aliran sungai, serta alih fungsi lahan menyebabkan bencana banjir pada musim hujan. Berdasarkan permasalahan dibutuhkan peningkatan penguasaan teknologi pemetaan bagi aparatur kecamatan dan kelurahan, pembuatan peta banjir, dan mensosialisasikannya kepada kalangan pelajar. Program dimulai dengan survey pengumpulan data koordinat banjir, diskusi kelompok terarah dan pelatihan pembuatan peta, dan sosialisasi hasil. Hasil program pengabdian telah meningkatkan kapasitas para aparatur kecamatan dan kelurahan dalam penguasaan teknologi pemetaan. Pada peta banjir dan genangan air Kota Pangkalpinang menunjukkan pola sebaran banjir terdapat pada morfologi dataran rendah disepanjang aliran Sungai Rangkui. Pelajar dan mahasiswa peserta sosialisasi mitigasi bencana banjir mampu memahami materi secara optimal. Keseluruhan hasil program pengabdian secara signifikan memberikan sumbangsih dalam implemetasi teknologi pemetaan untuk mitigasi bencana banjir. Kata Kunci: Banjir, Mitigasi, Pemetaan, Pelatihan, Sosialisasi ABSTRACT Pangkalpinang City has a relatively low topography and bordered by the sea in the east. the stream siltation and land-use change cause floods during the rainy season. Based on the problem, it is needed to improve the mastery of mapping technology for district and village apparatus, making flood maps, and disseminating them to students. The program starts with collecting flood coordinate data, focus group discussions and map-making training, and socialization the result. the program has increased the capacity of the district and village apparatus in the mastery of mapping technology. On the map of floods and puddles of Pangkalpinang City shows the flood pattern distribution found in the lowland morphology along the Rangkui River. Students and scholars participating in the flood disaster mitigation socialization understood the material optimally. The overall results of the community service program significantly contributed to the implementation of mapping technology in flood mitigation. Keywords: Flood, Mitigation, Mapping, Training, Socialization

PEMETAAN POTENSI BENCANA ALAM (GEO-DISASTER) AKIBAT PENAMBANGAN BIJIH TIMAH DI KECAMATAN JEBUS DAN PARIT TIGA, KABUPATEN BANGKA BARAT Irvani Irvani; Taman Tono
PROMINE Vol 2 No 1 (2014): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

The study area is a tin mining region in hundred years, located in Jebus and Parit Tiga District, West Bangka Regency, Bangka Belitung Archipelago Province. Identifying some geo-disaster potential, in order that the geo-disaster mapping caused by tin mining activity is done. The research is done by observing geological, geomorphological, erosion dan sedimentation conditions, mass movement, abrasion, dan floods. Geo-disaster potential is ilustratrated in map as result of work using geographic information system (GIS) software. Geodisasters that come from tin mining at study area are erosion, sedimentation, mass movement, floods and abrasion on the beach, which is about 67% area.

Rancang Alat Magnetic Separator Untuk Meningkatkan Kadar Bijih Timah Di Laboratorium Teknik Pertambangan Universitas Bangka Belitung Janiar Pitulima; E.P.S.B Tamantono E.P.S.B Tamantono; Haslen Oktarianty
PROMINE Vol 7 No 2 (2019): PROMINE
Publisher : Jurusan Teknik Pertambangan, Fakultas Teknik, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/promine.v7i2.1642

Magnetic separator testing uses two variables, namely the speed of the roller on the conveyor belt andthe feed speed. Due to the minimum number of variations that can be used in magnetic separatortesting, roller speed testing is used at 0.6 m / s and 0.7 m / s. the variation of figures at the feedingspeed of 0.21 kg / s and 0.35 kg / s so that 8 samples obtained from the processing of a magneticseparator with 4 magnetic samples and 4 non-magnetic samples. The feed samples used wereprepared by drying and sifting into 3 size fractions to be used in the grain counting analysis process sothat the percentage of minerals contained in the sample were found: 15.82% Cassiterite, 63.95%Ilmenite, 6.09% Monazite, 0.48% Pyrite / Marcasite, 1.61% Zircon, 1.44% Topaz, 0.65% Tourmalineand 9.96% Quartz. The effect of roller speed on the increase tin ore content is still common, this isbecause there are not many experiments carried out so that taking the trend of the influence of theroller speed is too fast. The effect of feed speed, the greater the feed speed on the magneticseparator, the smaller the tin ore content obtained.

Evaluasi Kesesuaian Perhitungan Cadangan Secara Manual Terhadap Penggalian Nyata Bijih Timah Blok Realisasi Pada BWD Kundur 1 PT Timah Tbk Di Laut Penganak Bangka Barat 0DI RIPANDA; E.P.S.B TAMAN TONO; Alfitri Rosita
MINERAL Vol 4 No 1 (2019): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

BWD Kundur 1 with the ability to dig up to 60 meters below sea level . Tin Mining Processes in theSea Penganak is mined using Bucket Wheel Dredge in the realization block with a total production of30 tons in September 2018. With the production target the calculation of company reserves is greaterthan the production realization of the BWD. The problem obtained in the field is a mismatch of reservecalculations with the realization of extracting tin ore that exceeds the tolerance limit. For good yieldcoefficients, namely 1 - 1.2, which has been set SOP. The reserve calculation uses the manualmethod using the Area of Influence method which this calculation is done by making a polygon area ofthe influence of the borehole and calculating the area of influence of the drill hole manually with 3 drillholes in the realization block of Kundur 1 BWD of 34,348 tons and the results of the realization of the2018 septber month were 30 tons. After obtaining the results of the two reserve calculations and theresults of the realization, then the two results can be compared to determine the Results Coefficient,find the factors that caused the incompatibility of the calculation of the performance such as BWDperformance, the type of layer extracted BWD, weather at the time of excavation and efforts toimprove Results Coefficients such as doing selective mining to determine the productive direction ofmultiplication. From the results of the manual calculation of the realization block obtained Pdh 34,3tons while the results of realization in the Psb field of 30 tons, the percentage difference in the ratio is -12,65% and the Results Coefficient of 0.85 including inappropriate from KH 1.2 according to SOP with0.2 tolerance.

Kajian Teknis Sistem Penerisan Tambang Di Front 2 TB 2.2 Tempilang Bangka Mitra PT Timah (Persero) Tbk Ines Yuana; E.P.S.B Taman Tono; Janiar Pitulima
MINERAL Vol 1 No 1 (2016): Mineral
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Tin ore mining activities in Front 2 of 2.2 Tempilang Large Mine was operated by business partnerof PT Timah (Persero) Tbk, PT Bahtera Sarindo Utama used Open Pit Mining Method with mechanicalsystems. Open Pit Mining Method would eventually form a large basin, so that would become a placefor air accumulation at the base of mine site, applied drainage system used Repressive KuruativeDrainage System by allowing water to pour into the mine and then concentrated on the front sump andthey would be removed from the mine using pumping systems. Rainfall data used included amaximum rainfall data with period of 2005-2014, the calculation of rainfall plans used Gumbeldistribution and calculation of rainfall intensity with Mononobe Equation, but for the period of rain istaken with the 2-year period. From the research, the existing sump had capability to retain water with avolume of 79.5 m3 and existing pumps had the capacity of 86.4 m3/h, while the total water poured inthe mine was 2172.588 m3/day with total of catchman area was 64085.442 m2. To improve drainagesystem performance on Front 2 of 2.2 Tempilang Large Mine, dimensional sump need to be repairedwith a capacity of 1267.336 m3 to bring outwater volume plan outside of work time (14 hours) and analternative pump was add 1 unit of recommendation pump with the same type such as Mitshubisi6D16 gravel pump (engine) with a pump capacity of 154.8 m3/h, but the actual pump was still beingused so that with the use of two unit pump acquired total pump capacity was 241.2 m3/h with thelifetime of pumping was 9 hours to remove the water 2172.588 m3/per day.

EVALUASI KEMAMPUAN PRODUKSI ALAT GALI-MUAT DAN ALAT ANGKUT GUNA MENCAPAI TARGET PRODUKSI BATUBARA 180.000 TON BULAN OKTOBER 2015 DI PIT LIMOA TAMBANG AIR LAYA EXTENTIONTIMUR PT BUKIT ASAM (PERSERO)TBK UPTE Maria Jeane Inggrid; E.P.S.B Taman Tono; Janiar Pitulima
MINERAL Vol 1 No 1 (2016): Mineral
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Eastern Extension of Pit Air Laya Limoa Mine was one of Air Laya Mine site that has coal miningbusiness license owned by PT Bukit Asam (Persero) Tbk. Excavator and truck method were applied inthat mine site. Mechanical equipments used in this site were 1 unit of Komatsu PC 800 SE Excavatorand 6 units of HINO LM 500 Dump Truck. Coal production target in Eastern Extension of Pit Air LayaLimoa Mine in October 2015 was 180.000 ton, but the production capacity of load haul equipment was157.179,39 ton with the work time efficiency at 14,07 hour/day and load haul equipment productiononly 129.245,20 ton with the work time efficiency at 13,97 hour/day. Therefore, evaluation wasnecessary throughout factors affecting working performance of mechanical equipment to achieve thetarget. Evaluation in achieving the target of coal production was conducted by calculating theproductivity, work efficiency and match factor. The data required to obtain these values includedequipment cycle time, the effective work time effeciency, the amount of bucket loading, density andcoal swell factor. Then the data was processed by using formula of mechanical soil removal andanalyzed based on literature related to the issue. After the evaluation of factors affectingperformance of mechanical equipments then work time effeciency corrected to be 15,61 hours/dayand additional of 6 to 7 unit of conveyance. There were changes in work time effeciency between loadhaul equipments and conveyance from 0,83 to 0,97. Production capabilities generated load haulequipment after being evaluated was 192.291,14 tons and production capabilities of conveyances,after the evaluation amounted to 188.236,03 tons.

EVALUASI KEMAMPUAN PRODUKSI RIPPING DOZER RIPPER D375 UNTUK MENCAPAI TARGET PRODUKSI BATUBARA 180.000 TON BULAN OKTOBER DI TAMBANG AIR LAYA EXTENTION TIMUR FRONT LIMOA PT BUKIT ASAM (PERSERO) TBK UPTE Gregorius Fredrick; E.P.S.B Taman Tono; Irvani Irvani
MINERAL Vol 1 No 1 (2016): Mineral
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Coal production target in East extension of TAL Limoa Front was 180.000 ton/month in October2015 but the target achieved only 115.967,59 ton with the percentage achievement of productiontarget at 64,4 %. Therefore it was necessary to evaluate performance of Dozer Ripper D375 numberseries DZ 521. The evaluation conducted by taking primer actual data in mine site such as cycletime, work distance, work effeciency, Ripper penetration and then the collecting data was processedto make reparations of DZ 521 type of D375 Ripper with the aim to meet the production target. Theachieved production after prior evaluation conducted by increasing work time effeciency was162.826,57 ton with the production achievement percentage at 90.45 % and the lack production was17.173,43 ton, a further evaluation was conducted by repairing of Ripper penetration performance andthe production was 206.138,22 ton with the production achievement percentage at 114% and theexceed production was 26138,22 ton. Then work time efficiency and Ripper penetration was improvedto obtain target production of 289.475,83 ton with the production achievement percentage at 160%and exceed production of 109.475,83 ton with time reserve 150 hours/month and 4,8 hours/daymaybe can back up the problems on location production. The evaluation had been met coalproduction target of Limoa Front.

Kajian Efektifitas Kerja Operator dan Kondisi Alat pada Front Penambangan Tambang Besar Pemali PT Timah Tbk Rajesta F. Wardana; E.P.S.B. Taman Tono; Delita Ega Andini
MINERAL Vol 6 No 1 (2021): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

The work efficiency value on the TB Pemali mining front in 2018 is relatively low (57.16%), This condition means it required the improvement of the work efficiency in accordance with the good mining practice. Method used in this research including preparation, collecting data and field orientation, which is then processed as follows: counting work efficiency of the dig tools for load and hauling tools in mining area front, analyzing operator performance and equipments conditions in mining area front, and analyzing work efficiency improvements. The result showing that score of current work efficiency of the dig tools for load in the amount of 62.74%, and for hauling tools in the amount of 57.68%. This result shows that low score of work efficiency in mining area front caused by large breakdown time of the hauling tools and low performance of the operator, then improvement of work efficiency is carried out by reducing the operator's variable trouble limit by 35% and reducing indent time of broke sparepart, the final score of work efficiency of the dig tools for load in mining area front is in the amount of 66.27% and for hauling tools in the amount of 66.44%

Kajian Perolehan Hasil Bijih Timah Berdasarkan Ukuran Butir Terhadap Variabel Magnetic Separator Skala Laboratorium Muhammad Rizki Pratama; Janiar Pitulima; E.P.S.B Taman Tono
MINERAL Vol 6 No 2 (2021): MINERAL
Publisher : Jurusan Teknik Pertambangan Universitas Bangka Belitung

Industrial-scale Magnetic Separator is used to process tin ore by separating magnetic and nonmagnetic minerals using a belt conveyor speed and splitter opening only one variation. Based on this, this research is intended to obtain a more varied and optimal combination of variable settings in the recovery of tin ore yields. The method used is quantitative data analysis method by obtaining nonmagnetic minerals using a combination of splitter openings and belt conveyor speed based on grain size, calculating the content of tin ore in non-magnetic minerals using the Grain Counting Analysis method and calculating the composition of tin ore recovery. The research was conducted based on grain sizes of 60 mesh, 80 mesh, and 120 mesh using a combination of splitter opening sizes of 0.2 cm, 0.4 cm, and 0.6 cm and using a belt conveyor speed of 27.12 cm/s, 28.15 cm/s, and 28.40 cm/s. The sample used for each grain size is 9,000 grams with repetition for each combination of variables, namely 30 times. The results of this study obtained the highest yield of tin ore at grain size of 80 mesh as much as 1,753.7 grams in 8,920.3 grams of non-magnetic minerals with tin ore grades of 19.66% using a combination of speed 27.12 cm/s and splitter opening 0.2 cm. Based on the results of the study, the tin ore contained in the non-magnetic material processed by the Magnetic Separator, the grain size of 80 mesh is higher than that contained in the grain size of 60 mesh, while the grain size is finer than 80 mesh, the lower the recovery of tin ore contained in the non-magnetic material. Meanwhile, the larger the splitter opening and the speed of the conveyor belt, the higher the nonmagnetic minerals obtained.

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