Optimalisasi Peledakan Pada Pengupasan Overburden Guna Memenuhi Sasaran produksi 30.000 BCM Pada Bulan Agustus 2012 Pada PT. Aliied Indo Coal.

PT. Allied Indo Coal (AIC), Tbk. Is a joint holder of the power of the coalmining concession area located in the area Parambahan, Sawahlunto. Theimplementation of the mining activities at PT. AIC, Tbk. performed by thecontractor that consists of open pit mining activities by PT. Tamasu Bara Utama(TBU). PT. Allied Indo Coal is a general coal mining operations. Mining contractperiod is 32 years old and expected to end in the year 2017 with an area of 844 haarea.Mining operations conducted by PT. Tamasu Main Coal open pit pattern(Open Cut Mine) and small-scale underground mining CV. Telaga Prosperous Truealso methods used for mining is a method under the long hallway (Longwallmethod) with excavation system backwards (retreating system), the undergroundmining method applied to the coal seams are thin and flat (slope layer is less than300) with make mining panels. In the coal mining system backward, mining beginswith a road on both sides of the panel as a driveway material transport workers andforwarded to the making of the work surface, then just do mine by approaching themain road towards progress. Each with a production of 5,000 tons per month ± forOpen Mine and Underground Mining (Underground Mining) with production1500ttons/month.Blasting aims to mengupasan overburden for easier unloading coal. But itmust go through several stages of the first stripping overburden, overburdenstripping, transporting blasting material yield management, OB, and stripping andprocessing of coal.In the process of mining job in PT. Allied Indo Coal, blasting is the mostimportant instrument in the mining activities. It like burden, spacing, stemming,subdrill, high explosive hole, charging column.