OPTIMASI PENGGALIAN PADA KAPAL KERUK SENGKEP 1DENGAN MENINGKATKAN LAJU PEMINDAHAN TANAHPADA PENAMBANGAN TIMAH ALLUVIAL LEPAS PANTAIDI LAUT PERMIS KEPULAUAN BANGKA

TL;DRAbstract

ABSTRACT At this time PT.Timah Tbk. mining in the area Permis Sea using Dredges Singkep 1 which has the capacity to bowl 24 CUFT (0.68 m3), with the location of astronomical 2o57'00 - 3o00'20 LS and 105o56'00 - 106o03'50 BT. The rate of soil excavation (LPT) on the dredger Singkep 1 850 m3/hr targeted for topsoil and 350 m3/hr for leaded sand layer. Excavation systems used Dredges Singkep 1 currently is the system press perlapisan ground while extracting method is applied shortface method. This method is done by dividing the work into the vault slices with a slice width of 30 meters from 90 meters under the work that is intended to perform a selective excavation. Based on field observations and calculations made from data that has been collected, the rate of transfer of land is currently at 833.33 m3/hr for topsoil and 364.96 m3/hr for leaded sand layer. It shows the rate of transfer of land specifically for the topsoil has not been achieved from targeted. The factors th

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