2109 In the central panel, mining preparation activities have continued to develop, mainly focused on the execution of civil works. Among the tasks carried out, the construction of containment walls, the enabling of draw points, the rock bolt of crossing, as well as the execution of pavements and lean concrete base, stand out, as can be seen in illustrations 9 and 10. The execution of slot raise was recently initiated, which constitutes a significant milestone within the preparation process. As a result of the sustained progress of these activities, a 99% completion rate is currently achieved in the civil works of the panel central, which shows a high degree of development and proximity to the completion of this stage. This level of progress allows for a more certain projection of the start of the subsequent phases, aimed at the commissioning of the operational systems and the incorporation of the panel into production. Illustration 9: Status of civil works Panel Central – Elements Illustration 10: Civil Works Status Panel Central - Lean concrete base and Pavements 4. CONCLUSIONS The mining preparation of Chuquicamata Underground today faces different challenges with the aim of launching projects that seek to contribute to production commitments and add value to the division. Currently, Chuquicamata faces the strategic challenge of incorporating the macroblocks N42, S4, Panel Central into production, with the objective of strengthening both the tonnage and the grade of the mineral extracted in the mine. These macroblocks present relevant considerations in aspects such as their design, the construction methods employed, and the geomechanical conditions, among other key factors that influence
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