A framework for evaluating deep sea mining systems for seafloor ma ssive sul phides deposits
Abstract
Loki’s Castle, a SMS site of interest located in the Norwegian jurisdiction, was used
to illustrate the established framework. The established economic block model was
used to support a sensitivity analysis which shows the performance of the DSM
system as being the most influential parameter over the value of a deposit. The results
of the simulation framework showed the significant variability of a DSM system’s
output and related mining costs when confronted to adverse weather conditions. The
simulation framework also supported a sensitivity study which shows that the vertical
transportation system and the ability to perform logistic operations at sea are central
to the value created by a DSM system. Using the conceptual design framework and
the results of the simulation framework, four DSM system concepts are proposed for
Loki’s Castle. The results of the framework are discussed in the light of strategic mine
planning, artificial intelligence techniques for optimisation purpose and advanced
design methodologies. Based on the findings of the discussion, future works are
presented under the form of a proposal for a pilot project to orientate the efforts of
the several disciplines which constitute DSM engineering.
Has parts
Article 1: Lesage, Maxime; Juliani, Cyril Jerome; Ellefmo, Steinar Løve. Economic block model development for mining seafloor massive sulfides. Minerals 2018 ;Volum 8.(10) s. 1-27Article 2: Lesage M. ; Ellefmo S.E. Evaluating the performance of a deep-sea mining system using a simulation approach
Article 3: Lesage M.; Erikstad S.O. Finding the generic function structure of a deep-sea mining system
Article 4: Lesage M.; Erikstad S.O. A conceptual design framework for deep-sea mining