Citas bibligráficas
Chino, R., (2024). Maximización en la recuperación de pilares con sistema Wassara en método de minado de taladros largos [Pontificia Universidad Católica del Perú]. http://hdl.handle.net/20.500.12404/27535
Chino, R., Maximización en la recuperación de pilares con sistema Wassara en método de minado de taladros largos []. PE: Pontificia Universidad Católica del Perú; 2024. http://hdl.handle.net/20.500.12404/27535
@misc{renati/534316,
title = "Maximización en la recuperación de pilares con sistema Wassara en método de minado de taladros largos",
author = "Chino Andrade, Renzo Yovanny",
publisher = "Pontificia Universidad Católica del Perú",
year = "2024"
}
The purpose of this present investigation is to maximize the recovery of post-mining pillars from primary stopes through the application of drilling equipment with the Wassara system, which consists of a down-the-hole hammer propelled only with water and that offers greater length and diameter of perforation, and less degree of deviation. According to the methodology, this research is of the applied type, quantitative approach, with a preexperimental design and explanatory level. In terms of results, a Jumbo XDTH55UFDR drilling rig is compared, with a unit drilling cost of US$41.30/m, drilling costs of US$3.75/t, mining cost of US$49.53/t, which a pillar recovery of 80% is obtained, increasing by 50%, compared to the pillar recovery of 30% with the Simba 1254; in such a way, that the design of the drilling mesh contemplated as parameters a burden of 2.5 m and a spacing of 2.5 m, a maximum length of drills of 80 m and a drilling diameter of 100 mm, greater than the diameter of 89 mm of the Simba 1254; Finally, with respect to the granulometric analysis in the blasting, a P80 passing percentage of 8.03 was obtained, having a reduction of 0.23 inches. Concluding that with the application of the XDTH55UFDR jumbo with the Wassara system, which has a greater length and drilling diameter compared to the Simba 1254, it is possible to drill holes of up to 80 m in length with a deviation of 2.5% and expand the drilling mesh of 1.7 x 1.7 to 2.5 x 2.5, therefore, increasing the recovery of pillars with grades greater than 2.2% Cu by 50%.
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