Calculation of PIT 4 Coal Reserves with Cross-Cross Method

Shabiruddin, Shabiruddin; Anshariah, Anshariah; Bakri, Hasbi

doi:10.58227/jge.v1i1.4

Cited by 6 publications

(6 citation statements)

References 9 publications

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“…Metode penelitian ini dilakukan dengan pengamatan langsung dilapangan. Adapun data-data yang diperoleh adalah catatan waktu dari setiap aktivitas-aktivitas selama satu hari kerja pada pemboran eksplorasi berupa aktivitas memasukkan inner tube dalam core barrel, putaran kosong, pengeboran, mengeluarkan inner tube dalam core barrel, memasukkan inner tube dalam core barrel, menyiapkan inner tube, menambah pipa, permasalahan inner tube tidak landing dan inner tube tidak dapat naik, merapikan perlengkapan pemboran, mengeluarkan pipa, memindahkan alat bor dan perlengkapannya, persiapan pemboran, transportasi, aksesibilitas, persiapan kerja kru, safety talk/ meeting, pengecekan alat, pengisian bahan bakar, menunggu dozer, persiapan pulang kru, menunggu supervisor/ geologist, menunggu kru, masalah cuaca, istirahat, menunggu pulang, perbaikan, serta masalah air (Husain et al, 2022;Shabiruddin et al, 2022).…”

Section: Metodeunclassified

Efisiensi Kerja Pemboran Eksplorasi Pada PT Vale Indonesia

Bakri¹,

Thamsi²,

Sahabuddin³

2023

JESTA

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Exploration activities nickel (Ni) which is one of the stages, is where the exploratory drilling work efficiency is one of the main factors that can describe how good a job has been done. The purpose of this study is to analyze the efficiency of exploration drilling. This research method is done by direct observation in the field. The data that was obtained was a record time of any activities during the working day in the form of exploration drilling activity, inserting the inner tube in the core barrel, an empty lap, then taking out further drilling in the core barrel inner tube, prepare the inner tube, add pipes, and re-inserting the inner tube core barrel. There are other activities that the problems of the inner tube not landing. The inner tube can not rise, smoothing supplies drilling, pulling out the pipe, moving the drilling tool and equipment, preparation of drilling, transportation, accessibility, preparatory work crew, safety talk/meeting, checking tool, refueling, wait for dozer, crew return preparations, waiting for a supervisor/geologist, waiting for the crew, weather problems, rest, waiting to go home, repair, and water issues. This study obtained an efficiency increase of 44.43% in drilling work. Concluded the drilling work efficiency is still below the working efficiency standards applied by the company by 50%.

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Section: Metodeunclassified

Efisiensi Kerja Pemboran Eksplorasi Pada PT Vale Indonesia

Bakri¹,

Thamsi²,

Sahabuddin³

2023

JESTA

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“…In some places, groundwater availability is quite good, but it takes work to obtain in others. This, of course, cannot be separated from the hydrogeological conditions of the Makassar Region (Jafar et al, 2022;Shabiruddin et al, 2022).…”

Section: Introductionmentioning

confidence: 98%

Groundwater Study in Makassar Region With Using Geoelectricity Resistant Type

Nawir

Kamal

Anshariah

2022

Journal of Geology and Exploration

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One area that has the potential to experience problems with the management and utilization of groundwater is the Makassar area. Several locations in Makassar are experiencing drought, while groundwater is abundant in other parts. In some places, groundwater availability is quite good, but it isn't easy to obtain in others. Of course, this cannot be separated from the hydrogeological conditions in the Makassar area. The purpose of this research is to identify and map the distribution of groundwater in Makassar City. The research uses the resistivity method, with data including potential values, currents, span length, and rock types found in the research location. Based on the resistivity section, there are two types of groundwater: fresh and brackish. The water is brackish in GL1, with a resistivity range of 2.14 – 22.7 Ohm.m. In GL2, with a resistivity range of 0.1 – 728 Ohm.m, the water is Brackish - Fresh, and in GL3, with a resistivity range of 4.47 – 40.1 Ohm.m. The characteristics of the aquifer in the Makassar area are intermittent based on the depth level.

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“…The cross-section method consists of the guidelines for the rule of gradual changes and the guidelines for the rule of the nearest point. Calculation of the area of each cross-section can be done manually using a planimetry tool or graphically by calculating blocks in millimeter blocks [7].…”

Section: Introductionmentioning

confidence: 99%

Analysis of difference in results of overburden production volume using Surpac 6.5.1 software and truck count method at Pit 2 PT. Baturona Adimulya

Harsiga,

Pebrianto

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The overburden production volume at PT Baturona Adimulya was known from two methods of measurement: joint survey activities to produce survey progress data and truck count methods. The total volume of overburden excavation based on the survey results from January until October was 2.415.231 BCM, while the truck count was 2.522.862 BCM, which was known from the daily report of OB removal data from January to October by the surveying division of PT AWU. There is a difference in results every month for both methods. The biggest difference occurred in June at 27.289 BCM, with the total difference in the calculation of overburden volume from January to October at 107.631 BCM. Observations in the field revealed several factors that caused difference between the calculation of the excavation volume based on the survey and the truck count from January–October. Factors that influence the difference from the number difference of 107.631 BCM are double handling, load variation, type of overburden material, the material is still attached to the vessel (1.2182 m3 per trip on the Isuzu giga fvz, 1.2061 m3 per trip on the Cat D400E ADT, 1.0936 m3 per trip), human error, and errors in the implementation of measurement activities.

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Calculation of PIT 4 Coal Reserves with Cross-Cross Method

Cited by 6 publications

References 9 publications

Efisiensi Kerja Pemboran Eksplorasi Pada PT Vale Indonesia

Efisiensi Kerja Pemboran Eksplorasi Pada PT Vale Indonesia

Groundwater Study in Makassar Region With Using Geoelectricity Resistant Type

Analysis of difference in results of overburden production volume using Surpac 6.5.1 software and truck count method at Pit 2 PT. Baturona Adimulya

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