ANNALI 2009-10 - Università degli Studi di Parma

GEOTECHNICS
The priority scientific topics of the research activities of the geotechnical
group, involved in these projects, are:
1. Rockfall
2. Rock slope numerical modeling
3. Hard soil – Soft Rock Characterization
4. Mechanical behavior of natural discontinuity in rock
5. Numerical modeling of rock discontinuities behavior
6. Large mass movements
7. Slope stability analysis of submerged volcanic structures
8. Debris flow analysis and modeling
9. Control and monitoring of the stability condition of the excavation
The activity of the Parma University research group would mainly devoted
to the development and application of slope modeling methods, in
the geological and geotechnical characterization of materials involved
in instability phenomena and control and monitoring of the stability
condition of the excavation. This characterization will be done by means
of specific in situ surveys and lab and in situ tests.
The research group have been involved in several researches concerning
different aspects of rock fall phenomena for many years.
In particular, blocks detachment evaluation on the basis of statistical and
deterministic surveys, blocks movement analysis and modeling by means
in situ tests interpretations and by improvements of a modeling code,
block failure phenomenon at slope impact study and modeling, analysis
of the dynamical behavior of protection system components developed by
full tests physical models.
Slope stability analysis of hard soil / weak rock materials is very peculiar
and involved the determination of the mechanical behavior of these
materials. For this reason a specific characterization by means of laboratory
testing and on site surveys have to be carried out.
Large mass movement phenomena involves the understanding of the
failure mechanisms and triggering causes determination. The process
involve the setting up of on site monitoring stations and the development
of physical and numerical models.
Risk assessment, safety and working environment issues are important
consideration in undertaking excavation both for civil or mining purposes.
A great effort in the research is performed by this group in the field
of developing monitoring and alarming systems which can predict, assess
and minimize the risk during excavation.
Modello Numerico agli Elementi di
Contorno di una galleria mineraria
Boundary Element numerical model of
an underground mine ( Fig. 1 )
Fig. 1 Fig. 2
Modello digitale della superficie rugosa
di un giunto in roccia
Digital model of the rough surface of a
rock joint ( Fig. 2 )
Carota recuperata da un sondaggio a
seguito dell’esecuzione di una prova
CSIRO
Borehole core recovered after the execution
of a CSIRO on site test ( Fig. 3 )
Fig. 3 Fig. 4
Grafico dei risultati ottenuti da una
prova di taglio ciclico su discontinuità
rugose
Diagram of the results of a cyclic shear
test on rough discontinuities ( Fig. 4 )
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