Table of Contents - SPE199: Characterization and Interpretation of Rock Mass Joint Patterns

Acknowledgments

Abstract

Introduction

Joint Pattern Characterizations

Homogeneous Joint Patterns
Linear sampling bias
Orientation corrections
Resolution in a new direction
Precision of the joint frequency estimates
Trace length corrections
Linear and areal joint density
Buffon's needle problem
Finite scanline length and corrections
Incorporation of trace length distribution
Preferred orientations
Inhomogeneity and three-dimensional forms Inhomogeneous Joint Patterns
The geostatistical approach
Semivariogram models
Interpretive techniques
Fundamental parameter variation

Synthesis and Analysis of Computer Generated Patterns

Simulation Technique
Homogeneous Joint Patterns
Uniformly randomly located and oriented joints
Orientational variability
Linear and areal density Inhomogeneous Joint Patterns
Orientation variability
Spatial periodicity
Linear drift Simulation Using Printed Circuits
Connectivity
Printed circuit analog
Versatility of the technique

Implications for Joint Mapping Surveys

Optimal sampling patterns
Errors inherent in linear sampling

Conclusions

Appendix

References

Introduction and Case Study Objectives

Regional Geologic Setting

The Lannon Site Experiment

Results and Interpretation

Joint Spacings
Unbiased Joint Rosette
Estimation of Inhomogeneity Characteristics
Hydraulic Connectivity

Conclusions

References