Kasmira
Universitas Pejuang Republik Indonesia

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ANALISIS GEOMETRI JALAN ANGKUT TAMBANG PADA PT. NATURAL PERSADA MANDIRI KECAMATAN LASOLO KEPULAUAN KABUPATEN KONAWE UTARA PROVINSI SULAWESI TENGGARA Erwin; Kasmira; Zulfahmi; Gina Audina P Alhabsyi
Journal Teknik Dan Teknologi  Vol. 1 No. 02 (2025): Juni
Publisher : Journal Teknik Dan Teknologi 

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The purpose of this study is to Analysis of the geometry of the mine haul road at PT. Natural Persada Mandiri, especially in the Bumi Pit 7 Block to the stockpile based on the mine haul road recommendation that refers to the AASTHO standard, which is located in Waturambaha, Lasolo Islands District, Konawe Utara Regency, Southeast Sulawesi Province in the IUP (Mining Business Permit) area of PT. Binanga Hartama Raya. Based on the design results of the mine haul road using Surpac 6.3, the road from Blok Bumi Pit 7 to the stockpile has a track length of ± 610 meters referring to the recommendation of the mining road geometry where the straight road width is 9 meters, the road width at the bend is 11 meters, 4% super elevation, slope the length of the road ranges from 8% - 10%. Because the new land clearing will be held, the researchers designed a road that is in accordance with existing safety standards, thus obtaining safe results for the Hino 500 FM 260 JD transportation means.
ANALISIS PROXIMATE UNTUK MENENTUKAN KUALITAS BATUBARA DI PT.GEOSERVICES KECAMATAN TANJUNG REDEB KABUPATEN BERAU PROVINSI KALIMANTAN TIMUR Elta rani kalimbuang; Hendra Sani; Kasmira
Journal Teknik Dan Teknologi  Vol. 2 No. 01 (2025): Desember
Publisher : Journal Teknik Dan Teknologi 

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Abstract

The purpose of this study to determine the quality of coal in terms of proxymate analysis of the results of the analysis of samples by using the ISO standard and ASTM. The Oversight data collection was done by testing samples of 6 samples in the PT.Geoservices laboratory. Based on the results of the testing showed that the testing moisture at sample using standard ASTM showed 14:09%, 13:51%, 10:22%, 13.83%, 14:11%, 14:11%, 14:01% and for ISO 13:06%, 13:00%, 12.96 %, 12.98% 12.90%, 13.08%, 12.94%. Based on data analysis, can be Conculated that the data in the analysis is Coal Sub-Bituminous ranged between 10% - 25%. Percentage of ash content of the test results in laboratory obtained percentage for the standard AST M is 7:52% 4:46%, 33.44%, 14:56% 4:34% 6:21% and to ISO 5:58% 5:48% 5:56%, 5.62% 5:56% , 5.64%. the percentage of volatile matter of the analysis results in laboratory obtained percentage for AST M standard is 41.11%, 44.45%, 30.81%, 39 .71%, 39.71%, 43.84%, 43.79% d late to the ISO standards are 37.10%, 37.32%, 37.00%, 37.16%, 36.92%, 37.19% fixed carbon grade not analyzed in laboratory but obtained from the calculation of indirect in getting the percentage for AST M 37.28%, 37.58% 25.53%, 31.90%, 37.71%, 35.99% and for ISO namely 44.26%, 44.20%, 44.46%, 44.32%, 44.44%, 44.23%. On Sample Coal studied in PT.Geoservices entered in the class of Coal Sub-Bituminous based classification of coal according to ASTM Standards, and Deserves to be marketed depending demand client.