Wir möchten Sie ganz herzlich zu einem Gastvortrag von Herrn Professor Carlos OVALLE von der Polytechnique Montreal, Kanada, einladen. Der Vortrag wird in englischer Sprache gehalten.

Carlos Ovalle is a professor at Polytechnique Montréal, Canada, since December 2018 and a member of RIME UQAT-Polytechnique, a joint research program comprising six major industrial partners, developing innovative solutions to address
environmental challenges in the mining sector.

Abstract
Mine waste rocks are coarse granular materials without economic interest that must be blasted and extracted in order to access the ore. Mining production volumes are significant, and rock waste material is stocked in piles that can reach several hundred meters in height, where their physical stability must be analysed. The material is composed of rock particles of different sizes, ranging from grains of sand and silt to rocks approximately 1 m in diameter. The presence of oversized particles does not allow the full-size material to be tested in the laboratory, so it is necessary to work with samples on a reduced scale. However, scaling methods can be affected by size effects, which are not yet fully understood by the geotechnical community.

In this seminar, multi-scale approaches are presented to understand the mechanical behavior of coarse waste rocks, including laboratory experiences, in-situ tests and numerical modeling through continuous and discrete methods. Understanding the physical sources of size effects on the mechanical behavior allow us to propose representative scaling laws to be used in practice.

Wir freuen uns über ihr Kommen und eine rege Teilnahme.

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