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Title of Journal: Rock Mech Rock Eng

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Abbravation: Rock Mechanics and Rock Engineering

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Springer Vienna

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DOI

10.1016/0021-8707(47)90083-x

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ISSN

1434-453X

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Algorithmic Simulation of Flow in Rock Fractures

Authors: H H W Herda
Publish Date: 2010/03/30
Volume: 44, Issue: 2, Pages: 211-220
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Abstract

The two sides of a rock fracture are geometrically often very different The difference or heterogeneity can be captured using aperture This is also practically very significant because locally low or zero aperture in a rock fracture impedes flow The aperture measurements of each of five paired rock blocks are discretely digitized 0–9 Each resulting weakly continuous twodimensional matrix is then traversed by the nflow newflow flow algorithm once from each entry at one end to the other end The paths are either incomplete and end surrounded by zeros or are completed at the other exit end The numerical digit distribution is held constant from block to block Fracture throughflow is defined as the average percentage of complete paths from one end to the other for that block Fracture roughness is negatively correlated with fracture throughflow r ~ −0893 A rough fracture will only allow little flow compared with a smooth fracture with a smoother aperture distribution Channeling of complete paths toward exit points is discussed for all blocks Channeling is not related to roughness A long complete sample path in a very rough fracture is shown The distribution of numbers of complete paths is also investigatedThe author wishes to thank Professor Yuzo Ohnishi VicePresident of Kyoto University who provided him with depth data on rock blocks KBL LBL MBL NBL and OBL The author also thanks Dr Patrick Bruines of Kyoto University’s Department of Urban and Environmental Engineering in the Graduate School of Engineering for Fig 1a b


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Other Papers In This Journal:

  1. Development of Rock Engineering Systems-Based Models for Flyrock Risk Analysis and Prediction of Flyrock Distance in Surface Blasting
  2. Borehole Instability in Malmberget Underground Mine
  3. The Use of Infrared Thermography for Porosity Assessment of Intact Rock
  4. A nonlinear criterion for triaxial strength of inherently anisotropic rocks
  5. Modeling of Shales in Salt-Hydrocarbon Systems
  6. An Example of Realistic Modelling of Rock Dynamics Problems: FEM/DEM Simulation of Dynamic Brazilian Test on Barre Granite
  7. Comprehensive Stability Evaluation of Rock Slope Using the Cloud Model-Based Approach
  8. Wear Performance of Saw Blades in Processing of Granitic Rocks and Development of Models for Wear Estimation
  9. Determination of Poisson’s Ratio of Rock Material by Changing Axial Stress and Unloading Lateral Stress Test
  10. Hollow Cylinder Simulation Experiments of Galleries in Boom Clay Formation
  11. Micromechanical Modelling of Stress Waves in Rock and Rock Fractures
  12. ISRM Suggested Method for Monitoring Rock Displacements Using the Global Positioning System (GPS)
  13. Determination of Geometrical and Structural Representative Volume Elements at the Baihetan Dam Site
  14. Determination of Geometrical and Structural Representative Volume Elements at the Baihetan Dam Site
  15. Microseism Induced by Transient Release of In Situ Stress During Deep Rock Mass Excavation by Blasting
  16. Some Open Issues on Rockfall Hazard Analysis in Fractured Rock Mass: Problems and Prospects
  17. Connectivity of Three-Dimensional Fracture Networks: A Case Study from a Dam Site in Southwest China
  18. Evaluating Variability and Uncertainty of Geological Strength Index at a Specific Site
  19. Hybrid Finite-Discrete Element Simulation of the EDZ Formation and Mechanical Sealing Process Around a Microtunnel in Opalinus Clay
  20. Experimental Anelastic Strain Recovery Compliance of Three Typical Rocks
  21. Significance of Geological Parameters for Predicting Water Inflow in Hard Rock Tunnels
  22. A Morphological Visualization Method for Removability Analysis of Blocks in Discontinuous Rock Masses
  23. Analysis of the Thermal and Hydraulic Stimulation Program at Raft River, Idaho
  24. Effects of Heat Shock on the Dynamic Tensile Behavior of Granitic Rocks
  25. New Rapid Evaluation for Long-Term Behavior in Deep Geological Repository by Geotechnical Centrifuge. Part 1: Test of Physical Modeling in Near Field Under Isotropic Stress-Constraint Conditions
  26. Slope Failures in the Opencast Coal Mines of Wardha Valley Coalfield in Central India: A Study
  27. System Reliability Assessment for a Rock Tunnel with Multiple Failure Modes
  28. Numerical Assessment of the Progressive Rock Fracture Mechanism of Cracked Chevron Notched Brazilian Disc Specimens

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