Course: Numerical Modelling of Tunnels

Rocscience is pleased to announce a training course in Sydney, Australia, on using the company's RS3 3D finite element program to model tunnels and underground excavations. This two-day training workshop, featuring world-class specialists, is designed for all experience levels.

Using RS3, a software for stress and deformation analysis, participants will analyze the stress and deformation behaviour of tunnels under various conditions.

The training will apply RS3’s tools to underground excavation analysis, including sequential excavation and support installation. It will focus on pragmatic approaches for everyday tunnel engineering.

The course will use a mix of presentations and “hands-on” tutorials (with practical examples) to demonstrate how RS3 can apply to underground design. It will discuss selecting appropriate material constitutive models, including the influence of pore pressures, stabilizing excavations with support and other measures, interpreting results.

• Location: Hyatt Regency, Darling Harbour, Sydney
• Course Date: April 28-29, 2022
• Schedule: 9 AM - 5 PM each day
• Languages: The course will be conducted in English
• Software to be used: RS2, RS3
• Registration Fees: USD $1200

Course Outline:

Course Objectives

This hands-on training course will allow participants to achieve the following:

• Learn simple yet powerful approaches to modelling mining slopes

• Develop high-quality models that provide insights on excavation behaviour

• Interact with an experienced Rocscience modelling specialists

• Interact and exchange ideas with other tunnelling engineers and practitioners

Day 1:

Numerical modelling concepts for underground excavations

• Goals of tunnel numerical modelling
• Underground rock failure mechanisms
• Stress-strain behaviour of rock masses
• In-situ (field, virgin) state of stress
• Rock strength failure criteria
• Design criteria for tunnels
• Elastic and plastic analysis
• Fundamentals of the Finite Element Method

Day 2:

Introduction to RS3 - applications and capabilities for tunnelling analysis and design

• Developing model geometries
• Assigning material models and properties
  • Selecting constitutive models
• Applying boundary and initial conditions
• Meshing models
• Mesh quality and refinement
• Computing models - solving excavation response (stresses and deformations) to loading
• Analysis options
• Interpretation of modelling results
• Using modelling results to assess excavation stability and fault activation
• Discussion of the validity of various failure criteria
• Application and interpretation of elastic modelling results
• Application and interpretation of plastic modelling results (plastic/yielded zones)
• Comparison of plastic and elastic results

• Interpretation of shear strain contours, moment-force diagrams and bending moments
• Support design
  • Application of interface elements
  • Structural forces (bending, axial and shear) in liners

• Sequencing of tunnel excavation and support

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For any further queries with regards to the course, please contact Alison Mcquillan.