Slope Model

Slope Model

Conventional numerical methods of slope analysis are mainly based on continuum approximation of the rock mass and the assumption of shear failure. Slope Model utilizes a novel approach that performs simulations of selected 3D sectors of rock slope stability in hard, fractured rock masses, consisting of any number of planar benches. The software implements a version of the Synthetic Rock Mass (SRM) approach (Pierce et al., 2007) applied to the specific case of rock slopes. SRM allows movement on joints (sliding and opening) as well as fracture of intact rock. The rock mass contains joint segments derived from a user-specified DFN (discrete fracture network). Non-steady fluid flow and pressure within the network of joint segments are modeled, and several aspects of fluid-rock interaction are represented, such as effective stress (for sliding behavior) and pressure response due to changes in rock geometry (e.g., bench removal). This three-dimensional modeling software is based on a lattice scheme that handles discontinuities and new fractures in the same way as Distinct Element Method (DEM), but is five to ten times faster. Fluid flows in the joints and rock matrix, and the flow network is automatically extended as new fractures form.

Slope Model was developed as part of the Large Open Pit (LOP) Project.

Contact us for more information and download selected abstracts to learn more.

The left-hand photograph is from Adhikary et al (1997), corresponding to his centrifuge Test 7, showing post-failure deformation of a toppling assembly of layers oriented with initial dips of 69o, and a slope angle of 70o. The right-hand plot is from a lattice simulation of a similar system, after failure (but limited to small strain deformation). The black dots denote broken bonds, and the colored vectors denote displacements (where red is large displacement and blue is small displacement). The red fracture line, derived from the centrifuge result, is superimposed upon the numerical result.

Slope failure through fracture of intact rock bridges modeled with Slope Model; black dots indicate stress-induced cracks (Lorig et al., 2010).
Slope Model Updates

Dernières Nouvelles
  • Itasca has announced the release of FLAC2D v9 Itasca has announced the release of FLAC2D v9, revolutionizing the way we analyze and predict...
    En savoir plus
  • 6th Itasca Symposium on Applied Numerical Modeling The next Itasca Symposium will take place June 3 - 6, 2024, in Toronto, Canada....
    En savoir plus
  • Itasca International Inc. announces the Selection of its New CEO Itasca International Inc. announces the nomination of its new CEO ...
    En savoir plus

Évènements à Venir
13 mars
Getting Started with 3DEC
Objectives of the training: •Understand the FLAC2D/ FLAC3D numerical approach and the types ofproblems it can solve•Know how to manipul... En savoir plus
18 avr.
Python in Itasca Software
Cette formation vous donnera toutes les clés pour être capable d’utiliser Python afin d'étendre les capacités de simulation des logicie... En savoir plus
29 mai
Getting Started with FLAC2D/FLAC3D
Objectifs de la formation: - Comprendre l'approche numérique de FLAC2D/ FLAC3D et les types deproblèmes qu'elle permet de résoudre- Sav... En savoir plus