International Slope Stability 2024 - Symposium

WORKSHOP



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2024-04-15 (Monday)

  ROOM 1 ROOM 2 ROOM 3 ROOM 4 ROOM 5 ROOM 6
09:00 09:00 - 12:00

WORKSHOP 10 - ADVANCED TECHNIQUES IN GEOTECHNICAL MODELING FOR SLOPES: FROM ROCK STRENGTH PREDICTION TO 3D NUMERICAL MODELING AND MACHINE LEARNING

Foto: PATRICIO GOMEZ

PATRICIO GOMEZ

CHILE WORKSHOP SPEAKER
Foto: JASON FURTNEY

JASON FURTNEY

UNITED STATES WORKSHOP SPEAKER
Foto: LOREN LORIG

LOREN LORIG

UNITED STATES WORKSHOP SPEAKER
Foto: RODRIGO SILVA

RODRIGO SILVA

CHILE WORKSHOP SPEAKER

New models and tools for analyzing rock mass behavior.
Loren Lorig, Rodrigo Silva and Patricio Gómez

 Itasca Model for Advanced Strain Softening (IMASS) as an alternative to D-factor
 Multiple ubiquitous joint model (Comba)
 KATS – ITASCA´s first Software as a Service (SaaS)

Blasting under the geomechanical perspective.
Jason Furtney

 Intro to GMX perspective on blasting
 Applied numerical modeling including web-based apps
 Considerations for various scales of analysis

New insights into water relevance in slope stability.
Loren Lorig

 Transient surface water considerations in slope stability analyses


09:00 - 12:00

WORKSHOP 4 - PROACTIVE SURFACE WATER MANAGEMENT

Foto: MATTHEW DAMHUIS

MATTHEW DAMHUIS

SOUTH AFRICA WORKSHOP SPEAKER
Foto: ANGUS ROWLAND

ANGUS ROWLAND

SOUTH AFRICA WORKSHOP SPEAKER

Piteau Associates a Tetra Tech Company


09:00 - 12:00

WORKSHOP 5 (PART 1) – 2D AND 3D SLOPE STABILITY ANALISIS

Foto: REGINALD HAMMAH

REGINALD HAMMAH

CANADA WORKSHOP SPEAKER

ROCSCIENCE


09:00 - 12:00

WORKSHOP 7 - GROUND RADAR APLICATIONS IN OPEN PIT MINE, THE USE OF RAR AND SAR TECHNOLOGIES

Foto: EDUARDO DINIZ

EDUARDO DINIZ

BELO HORIZONTE / MG WORKSHOP SPEAKER
Foto: ALBERT CABREJO

ALBERT CABREJO

UNITED STATES WORKSHOP SPEAKER
Foto: SHARLA COETSEE

SHARLA COETSEE

SOUTH AFRICA WORKSHOP SPEAKER
Foto: PRIYANKA NARSHAI

PRIYANKA NARSHAI

SOUTH AFRICA WORKSHOP SPEAKER
Foto: AUGUSTO MERLO

AUGUSTO MERLO

ITALY WORKSHOP SPEAKER
Foto: MANUEL DIAZ MERCADO

MANUEL DIAZ MERCADO

COLOMBIA WORKSHOP SPEAKER

IDS + GP


09:00 - 12:00

WORKSHOP 8 (PART 1) - DISCRETE FRACTURE NETWORK (DFN) ANALYSIS FOR OPEN PIT SLOPE STABILITY

Foto: PEDRO OJEDA

PEDRO OJEDA

CANADA WORKSHOP SPEAKER
Foto: SANTIAGO MARAMBIO

SANTIAGO MARAMBIO

CHILE WORKSHOP SPEAKER

WSP Canada Inc. (WSP) is pleased to host this workshop in association with the Slope Stability 2024 Conference on the topic of Discrete Fracture Network (DFN) Analysis for Open Pit Slope Stability. Over the last decade, DFN analysis and modelling have resulted in significant advances in how we approach fractured rock masses. A major area of development has been in DFN-based slope engineering, with advances in bench-scale analysis as well as inter-ramp and wall-scale stability analysis. This short course introduces attendees to some of the theory behind DFN modelling and some practical examples of how it is used, while providing hands-on experience with WSP’s DFN software, FracMan®. All attendees will be provided with a 30-day licence for the geotechnical edition of FracMan® Participants should bring a laptop to this workshop. This workshop will cover the following key topics:

§ How to describe a rock mass using DFN methods and how to define the key probabilistic input parameters.

§ The advantages of DFN-based bench-scale analysis over conventional bench-scale kinematics.

§ Using DFN methods to evaluate rock mass fragmentation and block size distributions.

§ How to evaluate rock-bridge percentage and mixed (joint-rock mass) shear strengths for input into two‑dimensional (2D) stability assessments.

§ How to run slope-scale kinematic assessments on intermediate and major structures using geologically constrained DFN models.

§ How to incorporate rock mass strength and pore pressure into slope-scale assessments.


09:00 - 12:00

WORKSHOP 1 - WEAK ROCK SAMPLING AND LABORATORY TESTING FOR OPEN PIT OPERATIONS (WSP/LOP)

Foto: LUIZ CASTRO

LUIZ CASTRO

 / WORKSHOP SPEAKER
Foto: MARC ROUGIER

MARC ROUGIER

CANADA WORKSHOP SPEAKER
Foto: MARISOL VALERIO

MARISOL VALERIO

CANADA WORKSHOP SPEAKER
Foto: SHARON ROSS

SHARON ROSS

CANADA WORKSHOP SPEAKER

This workshop for pit slope stability practitioners, developed in collaboration with the Large Open Pit project, provides guidelines for rock sampling and laboratory testing in weak rock for open pit slope design applications. The workshop aims to introduce attendees to the challenges unique to weak rock and different from hard rock, and provide insights on how to handle these challenges when sampling, field testing, and planning laboratory strength testing with weak rock.


12:00
13:30 13:30 - 17:00

WORKSHOP 5 (PART 2) – 2D AND 3D SLOPE STABILITY ANALISIS

Foto: REGINALD HAMMAH

REGINALD HAMMAH

CANADA WORKSHOP SPEAKER

ROCSCIENCE


13:30 - 17:00

WORKSHOP 2 - SLOPE MONITORING: STATE OF THE ART INTEGRATED DATA ANALYTICS

Foto: PAOLO FARINA

PAOLO FARINA

ITALY WORKSHOP SPEAKER

Despite the availability of good monitoring data as well as good monitoring platforms, mine sites are still struggling to identify with sufficient notice the occurrence of slope failures. In the majority of cases, slope monitoring programs are able to manage geotechnical risk in the short term, namely detecting slope movements a few days or hours before the collapse and communicating with operations in order to remove personnel and equipment from the potential run-out area. Additional efforts are still necessary to support better exploitation of the available data aimed at the identification of anomalous behaviors of the monitored slopes. The available data, if properly analyzed and interpreted, may contain valuable information potentially able to identify unstable sectors of the slope weeks or months before movements are fast enough to be detected by radar. The workshop is aimed at describing this type of process, namely 'data analytics'.


13:30 - 17:00

WORKSHOP 8 (PART 2) - DISCRETE FRACTURE NETWORK (DFN) ANALYSIS FOR OPEN PIT SLOPE STABILITY

Foto: PEDRO OJEDA

PEDRO OJEDA

CANADA WORKSHOP SPEAKER
Foto: SANTIAGO MARAMBIO

SANTIAGO MARAMBIO

CHILE WORKSHOP SPEAKER

WSP Canada Inc. (WSP) is pleased to host this workshop in association with the Slope Stability 2024 Conference on the topic of Discrete Fracture Network (DFN) Analysis for Open Pit Slope Stability. Over the last decade, DFN analysis and modelling have resulted in significant advances in how we approach fractured rock masses. A major area of development has been in DFN-based slope engineering, with advances in bench-scale analysis as well as inter-ramp and wall-scale stability analysis. This short course introduces attendees to some of the theory behind DFN modelling and some practical examples of how it is used, while providing hands-on experience with WSP’s DFN software, FracMan®. All attendees will be provided with a 30-day licence for the geotechnical edition of FracMan®. Participants should bring a laptop to this workshop. This workshop will cover the following key topics:

§ How to describe a rock mass using DFN methods and how to define the key probabilistic input parameters.

§ The advantages of DFN-based bench-scale analysis over conventional bench-scale kinematics.

§ Using DFN methods to evaluate rock mass fragmentation and block size distributions.

§ How to evaluate rock-bridge percentage and mixed (joint-rock mass) shear strengths for input into two‑dimensional (2D) stability assessments.

§ How to run slope-scale kinematic assessments on intermediate and major structures using geologically constrained DFN models.

§ How to incorporate rock mass strength and pore pressure into slope-scale assessments.


13:30 - 17:00

WORKSHOP 12 - THE BENEFITS OF INTEGRATING PITWALL DESIGN INTO STRATEGIC MINE PLANNING AND EMPLOYING GEOTECHNICALLY OPTIMAL PITWALL PROFILES. DEMONSTRATION THROUGH CASE STUDIES OF FOUR OPEN PIT MINES

Foto: STEFANO UTILI

STEFANO UTILI

UNITED KINGDOM WORKSHOP SPEAKER
Foto: MATTHEW SCHMIDT

MATTHEW SCHMIDT

UNITED STATES WORKSHOP SPEAKER
Foto: SERGIO CUELLO

SERGIO CUELLO

CHILE WORKSHOP SPEAKER

In the current design practice, pit wall profiles are often designed to be planar especially within each rock layer. A new slope design software, OptimalSlope, has been recently introduced to determine non-planar geotechnically optimal pitwall profiles. These profiles are obtained as the solution of a mathematical optimisation problem where the overall slope angle of the pitwall, from crest to toe, is maximised for an assigned lithology, rock properties, FoS, and any ramp to be accommodated.

Participant will be introduced to the theory behind OptimalSlope and 4 case studies of open pit mines where the adoption of overall steeper optimal pitwalls and their integration with strategic mine planning software has led to a significant reduction in the amount of waste rock to be excavated (up to 27% of total waste rock volume) and in turn in higher profits for tens of million USD (from 11 to 140 million) and carbon footprint reductions of 600,000 tonnes CO2eq on average per mine (see: https://optimalslope.com/Case-Studies.html).

Participants with a computer will also be given the opportunity to use OptimalSlope graphical user interface and its slope optimiser.


17:00

Subtitle

  • WS