Advances in Rockfill Structures

279 4. 2. Basic formulation 280 4. 3. Variations on the theme 285 4. 4. C. S. Parameters 286 5. CONCLUSIONS 289 REFERENCES 290 CHAPTER 12 FINITE ELEMENT METHODS FOR FILLS AND EMBANKMENT DAMS D. J. NAYLOR 1. INTRODUCTION 291 2. NUMBER OF LAYERS - ACTUAL AND ANALYTICAL 292 3. DEFORMATION IN A RISING FILL 292 4. BASIC FINITE ELEMENT PROCEDURE 292 5. INTERPRETATION OF FINITE ELEMENT DIS­ PLACEMENTS - 1D CASE 294 6. NEW LAYER STIFFNESS REDUCTION 296 7. MODELLING COMPACTION 300 8. FINITE ELEMENT EFFECTIVE STRESS TECHNIQUES 302 8. 1. Undrained effective stress analysis 302 8. 2. Known pore pressure change analysis 305 9. FIRST FILLING AND OPERATION - GENERAL 306 10. LOADING DUE TO IMPOUNDING 308 10. 1. upstream membrane dam 308 10. 2. Internal membrane dam 308 10. 3. Zoned embankment dams 312 11. ANALYSIS OF FIRST FILLING AND OPERATION 312 11. 1. First filling 312 11. 2. Steady seepage condition 314 11. 3. Finite element considerations 314 12. COLLAPSE SETTLEMENT 314 xili 12. 1. Nobari and Duncan's method 317 12. 2. Generalisation of Nobari and Duncan's method 319 12. 3. One-dimensional example 320 323 13. APPLICATIONS 13. 1. carsington dam 323 13. 2. Beliche dam 325 13. 3. Monasavu dam 330 REFERENCES 335 APPENDIX: DERIVATION OF EQUIVALENT LAYER STIFFNESS 332 CHAPTER 13 CONCRETE FACE ROCKFILL DAMS NELSON L. DE S. PINTO 1. INTRODUCTION 341 2. CURRENT DESIGN PRACTICE 343 2. 1. Evolution 343 2. 2. Embankment 344 2. 2. 1.

Contenu

1 Rockfill Structures: The Present and the Future.- 2 Physical Characterization and Assessment of Rock Durability Through Index Properties.- 3 Rockfill Modelling.- 4 Laboratory Shear Strength Tests and the Stability of Rockfill Slopes.- 5 Laboratory Compression Tests and the Deformation of Rockfill Structures.- 6 Collapse: its Importance, Fundamentals and Modelling.- 7 Test Fills and In Situ Tests.- 8 Laboratory Testing and Quality Control of Rockfill - German Practice.- 9 Creep of Rockfill.- 10 Filters and Drains.- 11 Stress - Strain Laws and Parameter Values.- 12 Finite Element Methods for Fills and Embankment Dams.- 13 Concrete Face Rockfill Dams.- 14 Static behaviour of Earth-Rockfill dams.- 15 Dynamic Behaviour of Rockfill Dam.- 16 Monitoring and Safety Evaluation of Rockfill Dams.- 17 Principles of Rockfill Hydraulics.- 18 Through and Overflow Rockfill Dams.- 19 Specifications and Control of Natural Rockfills.- 20 Asphaltic Concrete Face Dams.- Closing Session.- List of Participants.