554 Figure 3 - Conveyor on skid bases: front module (magenta), rear module (cyan), support module (gray), and skid base modules (orange). 7.2 Skid bases The stations and conveyors were installed on skid bases composed of metallic structures, fixing keys, and precast concrete blocks (Figure 4). This system optimizes assembly by allowing greater adjustment ranges than conventional foundations and facilitates asset relocation, minimizing costs and execution times in new operational fronts through the reuse of modular infrastructure. Figure 4 - Skid base mode • Skid-type Bases: Metallic structures with bolted connections and internal niches for ballast (gravel or ore). They optimize load distribution and drainage, ensuring system stability and preventing sediment accumulation. • Key: Steel components with concrete infill embedded to design depth. They act as critical anchors to restrict longitudinal and transversal displacements, uniformly transmitting loads to the ground. • Concrete blocks: Prefabricated interlocking units over the skid bases. They provide the necessary ballast to stabilize the structure against dynamic loads and environmental conditions of the operational setting. 7.3 Engineering Phases Detailed engineering optimized the layout through the transversal displacement of the original mobile assemblies. This reconfiguration allowed the integration of three secondary crushing lines in the space generated between the existing transport system and the mobile units, maximizing the use of the operational area. 7.3.1 Structural Calculation The structural analysis evaluated the dynamic response of the crushing and screening modules on skid bases to prevent resonance and ensure stability under concurrent loads (Figure 5).
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