Rock Rheology

1. Front Matter

   Pages i-x

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2. Introduction

   • N. Cristescu

   Pages 1-4

3. Mechanical properties of rocks

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   Pages 5-16

4. Creep of rocks

   • N. Cristescu

   Pages 17-26

5. Volume deformation

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   Pages 27-48

6. Classical constitutive equations

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   Pages 49-77

7. Rock ‘elasticity’ at high pressures

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   Pages 78-92

8. Rock plasticity

   • N. Cristescu

   Pages 93-111

9. Elastic/viscoplastic constitutive equations

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   Pages 112-150

10. Damage and failure of rocks

    • N. Cristescu

    Pages 151-165

11. Stress-states in situ

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    Pages 166-176

12. Creep and dilatancy/compressibility of rocks around vertical shafts and oil wells

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    Pages 177-198

13. Creep and dilatancy/compressibility of rocks around horizontal tunnels

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    Pages 199-233

14. Tunnel support analysis

    • N. Cristescu

    Pages 234-268

15. Back Matter

    Pages 269-336

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The present book is the result of work carried out over a period of about ten years by the author and his co-workers in order to describe more accurately the slow irreversible deformation in time of the rocks surrounding underground openings. To begin with, our efforts were directed toward a better under­ standing of the mechanical behaviour of rocks and to the formulation of more precise mathematical models for their dominant mechanical properties, mainly irreversible dilatancy and/or compressibility during creep. Subsequent efforts were focused on finding improved solutions to important mining and oil engineering problems, such as, for instance, the creep of rocks around wells and tunnels, short-term failure which may occur around an underground opening, damage and failure which take place after long-time intervals, the tunnel support analysis incorporating rock creep, etc. The book is the result of a great number of questions posed either by mining engineers or by the author himself, and of the corresponding answers (unfor­ tunately often only partial answers). This dialogue must certainly be continued in order to improve the models and to formulate models for other kinds of rocks, or, ultimately to obtain solutions for other important engineering problems. It is hoped that the book will also contribute to a better description, by means of mathematical models, of the mechanical behaviour of rocks.

• Fundament
• elasticity
• formation
• plasticity
• rheology

`This book is of interest to rock mechanics researchers especially those in the geotechnical field.'
Pageoph

• Department of Mechanics, University of Bucharest, Romania

  N. Cristescu

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