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ROCK DISCONTINUITIES

1. INTRODUCTION

1.1 Effect of Discontinuities on Rock Mass Properties

1.2 Classification of Discontinuities

1.3 Properties of Discontinuities

2. SAMPLING AND TESTING OF ROCKDISCONTINUITIES

2.1 Sampling

2.2 Testing for deformability and strength

2.3 Effect of boundary conditions

3. SHEAR STRENGTH CRITERIA FOR ROCK DISCONTINUITIES

3.1 Amonton's Law (1699)

3.2 Newland and Alleyly (1957)

3.3.Patton (1966)

3.4.Ladanyi and Archambault (1970)

3.5 Modified Ladanyi and Archambault Criterion (Saeb, 1990)

3.6 Barton and Choubey (1974)

3.7 Residual Shear Strength

4. SHEAR STRENGTH OF A FRACTURED ROCK MASS

5. EFFECT OF WATER ON JOINT SHEAR STRENGTH

6. HYDRAULIC PROPERTIES OF FRACTURES AND FRACTURED ROCK

6.1 Flow in a Single fracture

6.2 Flow in a Regularly Jointed Rock Mass

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