DBPapers
DOI: 10.5593/sgem2012/s03.v1027

IDENTIFICATION OF THE THREATS, AND DETERMINING THEIR SIGNIFICANCE, IN STRIPPED OVERBURDEN TRANSPORT

M. VANEK, Y. TOMASKOVA, M. SEIDL, P. KOLMAN
Wednesday 1 August 2012 by Libadmin2012

References: 12th International Multidisciplinary Scientific GeoConference, www.sgem.org, SGEM2012 Conference Proceedings/ ISSN 1314-2704, June 17-23, 2012, Vol. 1, 611 - 618 pp

ABSTRACT

Decision-making can be understood to be the core of management. The importance of
the decision-making process increases with the impacts that the decisions will produce.
This is also the case when an extraction company’s management is considering whether
to preserve the existing continuous-operation extraction plant or replace it with
discontinuous-operation plant. There is no question that a wrong decision can have
long-lasting consequences in terms of the extraction company’s jeopardised financial
health. Potential transition to discontinuous-operation plant will obviously require
investment and a project-based approach. The capital investment project therefore has to
be subjected to a comprehensive evaluation of its economic efficiency. This team of
authors focuses its scientific and research effort on this issue on a long-term basis. The
topic was also discussed in a contribution on “Alternative options for deploying
extraction equipment at large pit quarries”, published at a conference in 2011. Our
current contribution directly follows up on the economic evaluation of both
technological options. For this evaluation to be relevant, not only the economic aspects
but also the risks need to be reflected in the calculation of economic efficiency. The key
basis for quantifying the risks is the identification and specification of threats and the
assets exposed to threats. Because of the expected scope of their analytical work, the
authors have first focused on the process that is critical from the point of view of
exploitation, i.e., transport in extraction. The aim of this contribution is therefore to
determine the threats to which assets are exposed when continuous- and discontinuousoperation
equipment is deployed for loose material transport in large-capacity extraction
at large pit quarries and, using cognitive maps, to identify their causal relationships and
impacts on the criterion of the net present value, which is applied for evaluating the
economic efficiency of capital investment projects.

Keywords: managerial decision making, risk analysis, cognitive maps, transport,
stripped overburden