SciELO - Scientific Electronic Library Online

 
 número21Estudio de efectos de sitio en la Región de Coquimbo durante el terremoto de Illapel Mw 8.3 de 2015Incertidumbres en la estimación del periodo fundamental de terrenos inclinados índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • En proceso de indezaciónCitado por Google
  • No hay articulos similaresSimilares en SciELO
  • En proceso de indezaciónSimilares en Google

Compartir


Obras y proyectos

versión On-line ISSN 0718-2813

Resumen

FIGUEROA, Abraham; SOLANS, David; GONZALEZ, Christian  y  CAMPANA, José. Seismic behaviour of tailing dams built by the downstream and centreline methods. Obras y Proyectos [online]. 2017, n.21, pp.30-37. ISSN 0718-2813.  http://dx.doi.org/10.4067/S0718-28132017000100004.

The growth of ore treatment rates during the last decades has required an increase in the tailings impoundment capacity. Consequently, the height and volume of the designed sand dams have reached unprecedented dimensions. This has been caused by environmental constraints according to current regulations. In this context, the sand dam design with the centreline method is an alternative to reduce the sand volume without affecting the global dam stability. This method of construction has been applied successfully in seismic countries with high tailings dams such as Canada and more recently in Peru. This article presents 2D numerical modelling of high tailings dams under a strong seismic event. For this analysis it has been considered a standard section of dam built by downstream in one case. A second case considers the same section modifying its growth method to centreline from a certain height. The seismic response for both methods and the effect of variation in the upstream slope, in terms of seismic deformations, crest accelerations, amplification respect to free field and among others, are compared.

Palabras clave : tailings dams; seismic behaviour; numerical modelling.

        · resumen en Español     · texto en Español     · Español ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons