The major emphasis is on the behaviour of rocks as materials, although in the later chapters the behaviour of discontinuities in rocks, and the way in which this can affect the behaviour of rock masses, is considered.
The first edition of this book was received more kindly than it deserved by some, and with some scepticism by others. It set out to present a simple, concise and reasonably comprehensive introduction to some of the theoretical and empirical criteria which may be used to define rock as a structural material. The objectives - reinforced by the change in title - remain the same, but the approach has been changed considerably and only one or two sections have been retained from the first edition. The particular aim in this edition is to provide a description of the mechanical behaviour of rocks, based firmly upon experimental data, which can be used to explain how rocks deform, fracture and yield, and to show how this knowledge can be used in design. The major emphasis is on the behaviour of rocks as materials, although in the later chapters the behaviour of discontinuities in rocks, and the way in which this can affect the behaviour of rock masses, is considered. If this edition is an improvement on the first edition it reflects the debt lowe to numerous people who have attempted to explain the rudiments of the subject to me. I should like to thank Peter Attewell and Roy Scott in particular. I should also like to thank Tony Price and Mike Gilbert whose work at Newcastle I have used shamelessly.
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1 Engineering Description of Rocks.- 1.1 Rock testing.- 1.2 Uniaxial or unconfined strength.- 1.3 Empirical field and laboratory tests.- 1.4 Porosity and permeability.- 1.5 Discontinuous rock.- 2 Stress and Strain.- 2.1 Stress at a point.- 2.2 Pore pressure and effective stress.- 2.3 Strain at a point.- 2.4 Representation of stress and strain.- 2.5 Relation between stress and strain.- 2.6 Geostatic stresses.- 2.7 Measurement of in situ stress.- 3 Rock Deformation.- 3.1 Rock tests in compression.- 3.2 Rock deformation in compression.- 3.3 Mechanics of microfracture.- 3.4 Rock macrofracture.- 3.5 The complete rock deformation curve.- 4 Rock Strength and Yield.- 4.1 Rock strength criteria.- 4.2 Yield criteria.- 4.3 The critical state concept.- 4.4 Triaxial testing.- 4.5 Axial and volumetric strain data.- 4.6 The Hvorslev surface in rocks.- 5 Time Dependency.- 5.1 Creep strain.- 5.2 Phenomenological models of creep.- 5.3 Time-dependent deformation.- 5.4 Time-dependent strength reduction.- 5.5 Cyclic loading.- 5.6 Rapid loading.- 6 Discontinuities in Rock Masses.- 6.1 Discontinuity measurement.- 6.2 Discontinuity orientation data.- 6.3 Shear resistance of a rock containing a discontinuity.- 6.4 Shear resistance of a discontinuity.- 6.5 A critical state model for rock discontinuity strength.- 6.6 Measurement of discontinuity shear resistance.- 7 Behaviour of Rock Masses.- 7.1 Discontinuity frequency.- 7.2 Rock mass classification systems.- 7.3 Rock mass strength criterion.- 7.4 The relevance of rock mass strength.- References.- Author Index.
Engineering Behaviour of Rocks by I. W. Farmer
I. W. Farmer
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Chapman and Hall
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