1 / 10

Going Forward: What Can We Do?

Going Forward: What Can We Do?. Limit Equilibrium Analysis of Slopes. Can We Improve Characterization?. Can we measure the inputs needed for numerical modelling? Better characterize fracture networks, joint stiffness and strength Can we keep better records?

xannon
Download Presentation

Going Forward: What Can We Do?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Going Forward: What Can We Do? Limit Equilibrium Analysis of Slopes

  2. Can We Improve Characterization? • Can we measure the inputs needed for numerical modelling? • Better characterize fracture networks, joint stiffness and strength • Can we keep better records? • Organized, well-kept, electronic records/data

  3. Can We Improve Brittle Rock Modelling? • Common in many rock engineering situations

  4. Can We Improve Brittle Rock Modelling? • Can we better model range of brittle fracture behaviours? • Brittle failure initiation • Propagation of fractures after initiation • Behaviour after failure – spalling, buckling, etc. • Potential of application of discontinuous numerical methods • Development of improved constitutive models

  5. Can We Better Apply Numerical Tools? • Can we progress towards quantitative predictions? • Field measurements + back-analysis for in situ properties • Can we determine how efficient our designs are? • Field measurements and monitoring in order to assess by how much we over-design

  6. Can We Better Capture Variability? • Modelling of uncertainty and spatial variability? • Application of • Conventional statistical approaches Case I FS = 1.35, PF = 11.4% Case II FS = 1.12, PF = 0.71%

  7. Can We Better Capture Variability? • Application of • Geostatistics/Random Field Theory – resolution of tension between using ‘averaged’ values and ‘discrete’ values at different locations • Risk management techniques

  8. Can We Better Capture Variability? • Factors of safety – ranged from 0.95 to 2.1

  9. Thoughts on Implications of DFNs • Need for multiple realizations • Appropriately scaled block properties

  10. Thoughts? Ideas? Questions?

More Related