Therefore, the main purpose of this article is to calibrate and estimate, in backfitting mode, the numerical values of some of the parameters required for the application of suitable software to a real study case. In this work, RAMMS v1.5 software (Rapid Mass Movement Simulation, [10–17]) was used. The computer code is based on the Finite Element Method (FEM), and we used it to calculate the rapid mass movement evolution. Moreover, the use of the Shallow-Water approach, as implemented in RAMMS, allows a 2D model to be applied to 3D problems through a process of “averaging” the flow along the third dimension, assumed to be negligible compared to the others, with velocities parallel to the topographic surface. The flow is described using a Eulerian approach. The code is coupled with a user-friendly visualisation tool that allows the simulation results to be easily accessed, visualised, and analysed. The Voellmy–Bartelt rheological model has been developed and implemented in RAMMS through calibration and verification in full-scale trials at sites such as the Vallée de la Sionne (Switzerland). The RAMMS code was applied to study the Morino-Rendinara landslide (Figure 1). This type of landslide is classifiable as a fast flow (debris flow)
Back Analysis of a Real Debris Flow, the Morino-Rendinara Test Case (Italy), Using RAMMS Software
Antonio PASCULLI;Claudia Zito;Nicola SCIARRA;Massimo Mangifesta
2024-01-01
Abstract
Therefore, the main purpose of this article is to calibrate and estimate, in backfitting mode, the numerical values of some of the parameters required for the application of suitable software to a real study case. In this work, RAMMS v1.5 software (Rapid Mass Movement Simulation, [10–17]) was used. The computer code is based on the Finite Element Method (FEM), and we used it to calculate the rapid mass movement evolution. Moreover, the use of the Shallow-Water approach, as implemented in RAMMS, allows a 2D model to be applied to 3D problems through a process of “averaging” the flow along the third dimension, assumed to be negligible compared to the others, with velocities parallel to the topographic surface. The flow is described using a Eulerian approach. The code is coupled with a user-friendly visualisation tool that allows the simulation results to be easily accessed, visualised, and analysed. The Voellmy–Bartelt rheological model has been developed and implemented in RAMMS through calibration and verification in full-scale trials at sites such as the Vallée de la Sionne (Switzerland). The RAMMS code was applied to study the Morino-Rendinara landslide (Figure 1). This type of landslide is classifiable as a fast flow (debris flow)I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
