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The theory of strata mechanics /
During the last thirty years, the increasing need for extracting coal from new mining fields, especially from unmined protective pillars and seams that are threatened with rock bursts and rock-gas eruptions, has accelerated the development of research in the fundamental mining discipline known as ro...
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés Polaco |
| Publicado: |
Amsterdam ; New York : Warsaw :
Elsevier ; PWN--Polish Scientific Publishers,
1991.
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| Colección: | Developments in geotechnical engineering ;
63. |
| Temas: | |
| Acceso en línea: | Texto completo Texto completo |
Tabla de Contenidos:
- Front Cover; The Theory of Strata Mechanics; Copyright Page; Table of Contents; INTRODUCTION; 0.1 Development of rock mass mechanics; 0.2 Interrelation between the mechanics of rock masses and the mechanics of continuous media; CHAPTER 1. ROCK MASSES DISTURBED BY MINING; 1.1 General characteristics of rock masses; 1.2 Idealization of the rock mass; 1.3 Primary stress state; 1.4 The equation of continuity; 1.5 The equation of motion; 1.6 Concept of weightlessness of a rock; CHAPTER 2. THE ELASTIC STATE OF ROCK AROUND EXCAVATIONS; 2.1 The elastic properties of a rock mass
- 2.2 Effect of rock layering upon the form of the equations of state2.3 Equation of equilibrium in terms of displacements; 2.4 Plane state of strain in a rock mass; 2.5 Systems operating in a plane state of strain; 2.6 Three-dimensional states of displacement and stress in the vicinity of excavations; CHAPTER 3. THE VISCOELASTIC STATE OF ROCK AROUND EXCAVATIONS; 3.1 Rheological properties of rock masses; 3.2 Differential form of the state equations; 3.3 Integral form of the state equations; 3.4 The displacement equation of equilibrium; 3.5 Plane strain state
- 3.6 Plane strain- and stress distributions around excavations3.7 Three-dimensional stress state around excavations; CHAPTER 4. GEOMETRICAL THEORIES OF ROCK MASS MOVEMENTS; 4.1 Introduction; 4.2 The effect of an excavation upon a point isolated on the ground surface; 4.3 The relation between the surface of influence and the subsidence profile; 4.4 The plane profile of a full subsidence trough; 4.5 Inclination and curvature of the plane profile of a subsidence through; 4.6 Determining the horizontal component of displacement and strain
- 4.7 Variation of the shape of a subsidence trough with time4.8 Three-dimensional profile of a subsidence trough with two-parameter surface of influence; 4.9 Three-dimensional profile of a subsidence trough described by a three-parameter influence function; 4.10 Differential equations for displacements in a rock mass; CHAPTER 5. ELASTIC-PLASTIC MODEL OF AN INHOMOGENEOUS ROCK MASS; 5.1 Introduction; 5.2 Elastic-plastic properties of rocks; 5.3 The mechanism of elastic-plastic deformation of rocks and the concept of dislocation; 5.4 Dislocation energy
- 5.5 Dislocation movement and macroscopic plastic strains5.6 Differential equation describing the average dislocation displacement vector; 5.7 Dislocation model of a dry rock mass; 5.8 Equations of the dislocation model; 5.9 General solution of the equations of the dislocation model taking account of the anisotropy and inhomogeneity of the rock mass; 5.10 Solution of the equations of the dislocation model for an isotropic, uniformly elastic rock mass; 5.11 Separating the elastic stress field from the total stress field