We use advanced numerical modelling to analyze and predict the behaviour of geomaterials, the ground behaviour during tunneling, the stability of slopes, the retaining walls and support structures dimensioning. 2D and 3D continuum methods (FEM, FDM), discontinuum methods (DEM) and combined finite-discrete methods (FDEM) are in turn adopted depending on the issues to be dealt with. For instance thanks to the FDEM modeling it is possible to study the evolution of rock slopes from triggering to the subsequent runout. An example of a successful application is described in the recent paper published on the International Journal of Geomechanics, by Dr. Francesco Antolini and Prof. Marco Barla.
In particular our staff is expert in the use of Itasca software (Flac, Flac3D, Udec, 3DEC, PFC), Rocscience software (RS2, RS3) and DHI software (Feflow).
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Interaction between the Sparvo tunnel and the large landslide
Three-dimensional numerical model with the objective of evaluating the evolution over time of the interaction between the tunnel and the large complex landslide present at the site through the use of the finite difference software FLAC3D and the advanced time-dependent constitutive law SHELVIP. it was possible to reconstruct the deformation history of the slope, calibrated on the evidence of the on-site monitoring, and to perform predictive analyses of fundamental importance or the safe management of the motorway.
Client: Tecne
News: Three-dimensional numerical analysis for studying the interaction between tunnel and large complex landslide – Geosolving (geo-solving.com)
Construction of an hospital pavilion over a tunnel
Development of numerical analyses to evaluate the effect of the construction of the works planned for the new Pavilion 0 of the Giannina Gaslini Institute in Genoa on the Lamba Doria double-track railway tunnel on the Genoa-Pisa line. Numerical analyses were developed with RS2 and FLAC3D. it was possible to reproduce the stress-state conditions of the subsurface around the tunnel in the current state and following the construction of the buildings.
Client: Cooperativa Muratori e Braccianti di Carpi
News: Analisi numeriche per lo studio interferenza fra la realizzazione di un nuovo padiglione ospedaliero e la galleria Lamba Doria
Analysis of the DSGM of the eastern slope of Mount Saresano
Analysis of the gravity phenomenon of the eastern slope of Mount Saresano with update of the DVR (Risk Assessment) of the plant located at the foot of the slope. Modelling of the instability initiation phase using advanced numerical models with hydraulic, seismic, gravitational and rheological forcings for the study of different instability scenarios and definition of pre-alert, alert and warning thresholds aimed at the safe management of the plant's activities.
Client: Italsacci SpA
Numerical modelling of the big bags at the Arzignano landfill
DEM numerical modeling under two-dimensional conditions to evaluate the optimization of FIBC waste depositing modes. The study was conducted through to the simulation of the mechanical behavior of the bag filling material, the behavior of single and grouped bags laid on a horizontal plane reproducing the modes adopted in the landfill and simulating the design configurations to reproduce bag stacking and stability assessment.
Client: Geotechnical Engineering srl
2D and 3D numerical modelling of the Lonato tunnel
Construction of 2D numerical finite elements models using the RS2 as well as coupled thermo-mechanical finite differences models with FLAC software to support the executive design of the "Lonato" tunnel along Milano-Verona high-speed railway line. It consists of a single-track double-tube to be built using TMB-EPB for a lenght of 4.8 km. The aim of the modelling was ULS, SLEs verifications, the seismic analysis of the tunnels and the verification against fires of prefabricated concrete tunnel lining segments and the evaluation of the subsidence basin on the ground surface.
Client: Pini Swiss Engineers