• Assisted to learn about basic principle mine ventilation and tool utilization. • Assisted and teach students in operating Ventsim 6 Design and Kazemaru software based on case studies that are examplified. • Created and graded students pre-test, post-test, and reports.

• Assisted in creating the ultimate boundary from basic mine design information. • Assisted in creating a topograpih map on the boundary of the working map with a contour interval of 1 meter. • Assisted in creating a natural surface flow map of the work map area. • Assisted in performing rainfall analysis, evaporation/evapotranspiration, infiltration, hydrograph, water balance analysis for each catchment and aquifer analysis. • Assisted in designing conveyance facilities i.e. open channles, culverts, mine water treatment ponds. • Teach in preparation of reports related to the major task of mine drainage system. Regarding watershed modelling, rainfall frequency analysis, and planning of mine drainage facilities with the help of Microsoft Excel, Global Mapper and AutoCAD software.

1. Known the business flow of the mining process.2. Studied the blasting plan in the mine area at Batu Hijau Pit to crush rocks into simpler size materials.3. Studied the blasting plan in the mill expansion area to crush rocks with limited blasting vibration.4. Conducted research for practical work in the blasting operation area at Batu Hijau Pit.Title : Analysis of the Effect of Ground Vibration Levels on Distance and Explosive Charge per delay in Phase 7 and 8 Mining Areas in Pit Batu Hijau

Calculus Mentor