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All Journal Journals Mining Engineering : Bina Tambang Serambi Engineering
Aldi Fajri
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Earth & Planetary Sciences Energy Engineering Environmental Science Industrial & Manufacturing Engineering

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OPTIMALISASI KINERJA ALAT GALI MUAT DAN ALAT ANGKUT UNTUK MENCAPAI TARGET PRODUKSI OVERBURDEN MENGGUNAKAN METODE QUALITY CONTROL CIRCLE DI PIT 1 TIMUR PADA TAMBANG TERBUKA PT. ALLIED INDO COAL JAYA, PARAMBAHAN, SAWAHLUNTO, SUMATERA BARAT Aldi Fajri; Mulya Gusman
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.v6i4.114144

Abstract

PT. Allied Indo Coal Jaya is a company engaged in coal mining business. Mining methods applied by PT. Allied Indo Coal Jaya is an open pit mining and underground mine method. In the stripping and transportation activities of overburden in pit 1 east of PT. Allied Indo Coal Jaya operates 2 cat 330D2 L backhoe excavators as a load digging tool and 8 units of HINO 500 FM 260 JD dump truck transport equipment. The problem that often occurs in overburden removal activities is the amount of time obstacles that can be avoided by loading and conveyance. This causes the performance of loading and carrying equipment is not optimal so that the actual productivity achievement in October 2020 is only 61,870.72 bcm / month while the company's target is 110,000 bcm / month.A production management study was conducted by applying the Quality Control Cycle (QCC) method. This method makes it possible to conduct a review of the optimization of the performance of loading-carry digging tools and the obstacles experienced during the production process. The study began by recalculating the initial conditions taking into account the mining equipment used, namely CAT 330D2 L excavators and DT HINO 500 FM 260 JD. The actual productivity of 2 units of CAT 330D2 L excavators reached 62,381.28 bcm/ month and DT HINO FM 260 JD reached 58,027.58 bcm / month with a total of 8 units of DT, the match factor of heavy equipment reached 0.97.After evaluating the Fishbone Diagram, it is known that there are major problems, namely environmental factors, equipment, materials and man power that affect working time. The results showed that productivity increased with equipment of 2 units of CAT 330D2 L excavators by 110,461.46 bcm / month and production of 8 units of DT increased by 106,962,578 bcm. These results show that the performance of the tool can be improved to achieve the planned monthly targets. Keywords. Productivity, Exca CAT 330, DT HINO 500, QCC Methods
Mikro-Simulasi Prasarana U-Turn Menggunakan Sofware VISSIM Pada Ruas Jalan Teuku Nyak Arief Kota Banda Aceh Cut Nawalul Azka; Hidayat, Rifki; Aldi Fajri
Jurnal Serambi Engineering Vol. 10 No. 1 (2025): Januari 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Heavy traffic conditions for road users, especially on Teuku Nyak Arief Street, Banda Aceh City at U-turn often cause high traffic disruption, where it is difficult to understand road conditions, because the position of the U-turn is often found to be ineffective, including less than ideal road conditions with the presence of roads so congested that it will affect U-turns and congestion at active U-turns. The problem is how to improve the effectiveness of U-turns through microsimulation of the VISSIM software against the model scenario. The method used is to analyse the level of service using VISSIM software on the delay value. Based on the analysis of existing, there is a poor LOS U-turn 4 which is LOS E with a delay value of 41.79 vehicles/second, but there is also a U-turn whose level is quite good such as U-turn 1 with 24.17 vehicles/second. Recommendation at U-turn 4 to improve road service by closing the north-south road and diverting to U-turn 3. U-turn 4, which was originally a double U-turn, has been changed to a single U-turn (for north-south U-turns only). The best advice given is traffic management with consideration based on local conditions.
Co-Authors Cut Nawalul Azka Mulya Gusman Rifki Hidayat