EVALUASI KEGIATAN PENGEBORAN INTERBURDEN GUNA MENGOPTIMALISASI KETERCAPAIAN TARGET PRODUKSI PELEDAKAN DI PIT 3 TIMUR PENAMBANGAN ELEKTRIFIKASI BANKO BARAT PT BUKIT ASAM,TBK. TANJUNG ENIM, SUMATERA SELATAN
Daftar Isi:
- PT. Bukit Asam, Tbk. is a state-owned enterprise (BUMN) engaged in the coal industry in South Sumatra. The company conducts mining activities with four operating pits in Site West Banko, namely pit 1, North pit 1, pit 2 and East pit 3. The mining system in East Pit 3 West Bangko uses Conventional mining method that is using a excavator in the form of a power shovel of PC 3000 in the removal of overburden assisted by conveyance in the form of Dumptruck Belaz 75135 and HD 785 for coal removal using PC 400 excavator and tools DT Hino 500 FMPD transport. The Stripping of overburden in east pit 3 was assisted with blasting, it was intended to facilitate the production of power of the PC 3000 power shovel in achieving the planned production targets. Drilling activity is worked out by a unit of Sandvik D245S type drilling equipment owned t Bangko by PT. Dahan in the east Pit 3 West. Based on the planning of the drilling and blasting, the amount of blasting material is 300,000 bcm. But only reached 80.920 bcm or 27% of the April target with cycle time are 5.78 minutes, drilling speed are 1.38 m / min. After scheduling drilling locations at June with an area of 10.82 Ha, based on Minescape 5.7 software, the June volume plan is 768.000 bcm from the previous target of 300,000 bcm, a potential volume increase of 256%.