| 中文摘要 | 第5-6页 |
| ABSTRACT | 第6-7页 |
| 1. Introduction | 第14-24页 |
| 1.1. Background | 第14-17页 |
| 1.2. Previous researches and current status | 第17-22页 |
| 1.2.1. Slope Stability | 第17-18页 |
| 1.2.2. Calculation method | 第18-19页 |
| 1.2.3. Waters influence on slope stability | 第19-21页 |
| 1.2.4. Slope stability factor | 第21-22页 |
| 1.3. The main content and research direction of this paper | 第22-24页 |
| 2. Water level fluctuation and slope stability | 第24-52页 |
| 2.1. Fluctuation in water level | 第24-25页 |
| 2.2. Rapid drawdown | 第25-26页 |
| 2.3. Theory of saturated – unsaturated seepage | 第26-30页 |
| 2.3.1. Darcy’s law for unsaturated soil | 第27-29页 |
| 2.3.2. Fluid and porous medium components | 第29页 |
| 2.3.3. Shear Strength Theory for Unsaturated Soil | 第29-30页 |
| 2.4. Hydraulic characteristics of rock mass | 第30-33页 |
| 2.4.1. Hydrogeological structures of rock mass | 第30-33页 |
| 2.5. Relationship between permeability and volume mass properties | 第33-41页 |
| 2.5.1. Effect of variations in degree of saturation on permeability | 第33-34页 |
| 2.5.2. Relationship between coefficient of permeability and degree of saturation | 第34-38页 |
| 2.5.3. Relationship between water coefficient of permeability and matricsuction | 第38-39页 |
| 2.5.4. Relationship between water coefficient of permeability and volumetricwater content | 第39-40页 |
| 2.5.5. Hysteresis of the permeability function | 第40-41页 |
| 2.6. Permeability of rock mass | 第41-45页 |
| 2.6.1. Permeability rate (velocity of seepage) | 第42页 |
| 2.6.2. Basic law of seepage | 第42-43页 |
| 2.6.3. Determination of permeability coefficient of rock mass | 第43-45页 |
| 2.7. Slope Stability | 第45-47页 |
| 2.8. Influence of ground water on stability of rock mass | 第47-50页 |
| 2.8.1. Coupling models of seepage and stress field | 第49-50页 |
| 2.9. Influence of reservoir water level fluctuation on slope stability | 第50-52页 |
| 3. Numerical Modelling and Analysis Techniques | 第52-79页 |
| 3.1. Numerical modeling | 第52-53页 |
| 3.2. Numerical analysis | 第53-55页 |
| 3.2.1. The Limit Equilibrium Approach | 第53-54页 |
| 3.2.2. Finite Element Method | 第54页 |
| 3.2.3. Mathematical Models for the Saturated Unsaturated Seepage | 第54-55页 |
| 3.3. Slope stability analysis methods for unsaturated soils | 第55-67页 |
| 3.3.1. Introduction | 第55-57页 |
| 3.3.2. Location of the critical slip surface | 第57-58页 |
| 3.3.3. General limit equilibrium method | 第58-61页 |
| 3.3.4. Shear force mobilized equation | 第61-63页 |
| 3.3.5. Normal force equation | 第63-64页 |
| 3.3.6. Factor of safety with respect to moment equilibrium | 第64-65页 |
| 3.3.7 Factor of safety with respect to force equilibrium | 第65-67页 |
| 3.3.8 Inter-slice force function | 第67页 |
| 3.4. Calculation model of slope infiltration line in rock slope | 第67-69页 |
| 3.5. GEO SLOPE | 第69-77页 |
| 3.5.1. Seep/w | 第70-71页 |
| 3.5.2. General Limit Equilibrium Formulation in SLOPE/W | 第71-77页 |
| 3.6. Illustration of basic parameters in Numerical Analysis | 第77-78页 |
| 3.7. Summary of the chapter | 第78-79页 |
| 4. slope stability Analysis of reservoir slope of Dagangshan | 第79-103页 |
| 4.1. Overview | 第79-84页 |
| 4.1.1. Brief Introduction to the Dagangshan hydropower project | 第79-81页 |
| 4.1.2. Topography | 第81-82页 |
| 4.1.3. Engineering geology of rock slope of the right bank | 第82-83页 |
| 4.1.4. The Hydrogeological condition | 第83-84页 |
| 4.2. Model Description | 第84-87页 |
| 4.3. the boundary conditions of the slope for seepage analysis | 第87-89页 |
| 4.3.1. Dagangshan Hydropower Station flood conditions | 第87-88页 |
| 4.3.2. The water level changes with the boundary conditions | 第88-89页 |
| 4.4. Seepage Analysis | 第89-93页 |
| 4.5. Stability analysis | 第93-94页 |
| 4.6. Results | 第94-103页 |
| 4.6.1. Case I – 3o days | 第94-97页 |
| 4.6.2. Case II – 60 days | 第97-99页 |
| 4.6.3. Comparison between Case I and Case II | 第99-100页 |
| 4.6.4. Case III – 180 days | 第100-102页 |
| 4.6.5. Comparison between Case I and Case III | 第102-103页 |
| 5. Conclusion and prospect | 第103-106页 |
| 5.1. Conclusion | 第103-105页 |
| 5.2. Prospect | 第105-106页 |
| REFERENCES | 第106-109页 |
| Acknowledgement | 第109页 |
