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1. Definition and Subject of the Discipline. Nature of the discipline and interdisciplinary connections. Discontinuity and granularity. Multicomponent structure. 2. Mechanical Models of Rocks and Soils. Description of the models. The concepts of rheology of a continuum. The model of an elastic body. Linear rheological models. Piecewise linear models. Terzaghi's hydrodynamic model. Discrete model for rocks and soils. Shear resistance of soils. 3. Properties of Rocks and Soils. Physical properties of rocks. Physical properties of soils. Rheological properties of rocks. Rheological parameters of soils. The properties of frozen soils. 4. Viscoelasticity in Soil and Rock Mechanics. Distribution of stresses in the substratum. Deformations of the substratum and slopes. The in-situ state of a rock mass. Excavations in a rock stratum. Problems associated with drilling. Discrete models of rock strata. 5. Groundwater Flow. Equations of groundwater movement. Two-dimensional groundwater flow problem. Some practical problems. Seepage in scarps and slopes. Drainage of the ground and excavations. Water flow in rock strata. 6. Outline of the Theory of Consolidation of Porous Deformable Media. Brief outline of the history of the theory of consolidation. Quasi-stationary problems. Dynamic problems of the theory of consolidation. Thermoconsolidation. 7. Plasticity and Limit States. Constitutive relations for elastic-plastic models of rocks and soils. The limit state conditions. Limit analysis. Examples of application of approximate methods. The method of characteristics. 8. Mechanics of the Clay Fraction. Data and assumption. Physical fundamentals. Clay particles and ground water. The primary structure of the clay-water fluid. Movements of a structure element. Action of isotropic pressure (consolidation). Action of the stress deviator. Rheological models of primary clay. Structural changes of clay-water fluid. The oriented clay-water fluid. Clayey soils. Creep in clayey soils. (All chapters include References). Index.
Although theoretical in character, this book provides a useful source of information for those dealing with practical problems relating to rock and soil mechanics - a discipline which, in the view of the authors, attempts to apply the theory of continuum to the mechanical investigation of rock and soil media. The book is in two separate parts. The first part, embodying the first three chapters, is devoted to a description of the media of interest. Chapter 1 introduces the main argument and discusses the essence of the discipline and its links with other branches of science which are concerned, on the one hand, with technical mechanics and, on the other, with the properties, origins, and formation of rock and soil strata under natural field conditions. Chapter 2 describes mechanical models of bodies useful for the purpose of the discourse and defines the concept of the limit shear resistance of soils and rocks. Chapter 3 gives the actual properties of soils and rocks determined from experiments in laboratories and in situ. Several tests used in geotechnical engineering are described and interconnections between the physical state of rocks and soils and their rheological parameters are considered.
The second part of the book considers the applications of various theories which were either first developed for descriptive purposes in continuum mechanics and then adopted in soil and rock mechanics, or were specially developed for the latter discipline. Chapter 4 discusses the application of the theory of linear viscoelasticity in solving problems of stable behaviour of rocks and soils. Chapter 5 covers the use of the groundwater flow theory as applied to several problems connected with water movement in an undeformable soil or rock skeleton. Chapter 6 is a natural expansion of the arguments put forward in the previous chapter. Here the movement of water is regarded as the cause of deformation of the rock or soil skeleton and the consolidation theory developed on this basis is presented in a novel formulation. Some new engineering solutions are also reported. The seventh chapter is devoted to the limit state theory as applied to the study of the mechanical behaviour of soils and rocks. It presents some new solutions and methods which include both static and kinematic aspects of the problem, and some original effective methods for investigating media of limited cohesion. The final chapter gives a systematic account of the mechanics of highly dispersed soils, commonly called clays.
- © Elsevier Science 1988
- 1st January 1989
- Elsevier Science
- eBook ISBN:
@qu:...both the student and the practising engineer will find much useful information collected in this book. @source: Geotextiles and Geomembranes, 1989 @from:S. Valliappan, Kensington, N.S.W., Australia @qu:..the book..will serve as a good reference for practising engineers. ....valuable as a reference for geotechnical engineers. @source:Rock and Soil Mechanics @from:S. Valliappan @qu:...will serve as a good reference for practising engineers....valauble as a reference for geotechnical engineers. @source:Rock Mechanics and Rock Engineering
Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, and Technical University, Wroclaw, Poland
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