Copper Mountain Mine tailings dam safety review supplement
Suplemento de la revisión de seguridad de la presa de relaves de la Mina Copper Mountain
Autor(es): Daniel Brox
Fuente: Mexican Journal of Technology and Engineering, Vol. 4, No. 1, pp. 58-81
DOI: https://doi.org/10.61767/mjte.004.1.5881
Abstract
Copper Mountain Mine tailings dam slope stability research based on recommendations of the 2021 Tetra Tech Dam Safety Review, including computation of tailings dam factors of safety, satellite imagery, steady state and transient seepage analyses, and assessment of internal erosion risk. 3D dam factors of safety satisfy BC’s normal operating legal requirement of 1.5 but are in possible violation of the post-seismic legal requirement of 1.2.
Keywords: Tailings, dam, foundation, seepage, internal erosion, liquefaction.
Resumen
Esta es una investigación sobre la estabilidad de relaves de la presa de la Mina Copper Mountain, la cual, se basa en las recomendaciones de la Revisión de Seguridad de Presas de Tetra Tech de 2021. El estudio incluye el cálculo de los factores de seguridad de la presa, imágenes satelitales, análisis de filtraciones en estado estacionario y transitorio, y la evaluación del riesgo de erosión interna. Los factores de seguridad 3D de la presa cumplen con el requisito legal de operación normal de Columbia Británica de 1.5, pero podrían incumplir el requisito legal post-sísmico de 1.2.
Palabras clave: Relaves, presa, cimentación, filtraciones, erosión interna, licuefacción.
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