Use Of A Numerical Model For
Underground Stability Evaluation
Author(s)
L. Longoni & M. Papini
Abstract
In recent years the tendency for re-evaluation and conversion of dismissed mines
for touristic and scientific purposes (educational trails, laboratories, etc.) has
been more and more diffused. To make these purposes possible in safe
conditions it is necessary to evaluate the geological risk inside mines and execute
proper stability studies. For the definition of geological risk, even for
underground works (galleries, mines), it is not possible to prescind from the
analysis of geological, geomorphological and mechanical aspects that compete
for the definition of the three dimensional physical model. Only in this way will
it be possible to simulate the behaviour of the rock mass and to forecast future
risk sceneries, define critical thresholds and evaluate more suitable mitigation
works. For a correct evaluation of the hydro geological problem using actual
available means, the approach based on the physical-mathematical modelling of
the problem is used more and more. This has necessitated the experimental
observation of the mechanical behaviour of materials, the definition of
constitutional laws, the modelling of soils and rocks systems, the formulation of
holding equations, the development of analytic and numeric instruments for the
solution of contour problems, the observation of the behaviour of real scale
works, etc. The aim of this paper is to demonstrate the use of a numerical code
for the evaluation of the stability of a part of the Piani dei Resinelli mines. The
numerical model allows one to evaluate the tensional-deformational state of the
rock mass. After geological, geomorphological and geotechnical analysis, we
applied the 3DEC algorithm to the Piani dei Resinelli mines in order to obtain a
three dimensional discontinuous model with distinct elements.
Keywords: 3DEC, hazard, mines, risk scenarios.
Keywords
3DEC, hazard, mines, risk scenarios.
Related Book
Other papers in this volume
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