Chapter 1 Introduction
1.1 Slope Failures Under Rainfall and Failure Mechanisms
1.2 Recent Advances and Hot Research Topics
1.3 Outline of The Book
References
Chapter 2 Infiltration and Seepage Analysis in Soil Slopes
2.1 Introduction
2.2 Estimation of Infiltration Rate Based on Conceptual Model
2.2.1 Mechanism of Infiltration in Soils
2.2.2 Green-ampt Model for Infiltration of Constant Rainfall on A Level Ground
2.2.3 Infiltration of Constant Rainfall on A Sloping Ground
2.2.4 Infiltration of Time-varied Rainfall on A Sloping Ground
2.3 Seepage Analysis in Unsaturated Soil Slopes Based on Physical Governing Equation
2.3.1 Governing Equation of Water Flow in Unsaturated Soil
2.3.2 Hydraulic Properties of Unsaturated Soils
2.3.2.1 Soil-water characteristic curve
2.3.2.2 Coefficient of permeability function
2.4 Analytical Solutions of the Richards Equation
2.4.1 Analytical Solution of One-dimensional Infiltration Under Constant Rainfall
2.4.2 Analytical Solution of One-dimensional Infiltration Under Time-varied Rainfall
2.4.3 Effect of Soil Properties， Boundary Conditions， and Initial Conditions
2.4.3.1 Saturated permeability ks
2.4.3.2 Desaturation coefficient asy
2.4.3.3 E/i[ective water content θs-θr
2.4.3.4 Antecedent surJhce JTux q0
2.4.3.5 RainJall intensity q1
2.4.3.6 Thickness of soil layer L
2.5 Numerical Analysis of the Richards Equation
2.5.1 Standard Formulations
2.5.2 Spatial Approximation and Time Discretization
2.5.3 Nonlinear Solution Methods
2.5.4 Numerical Oscillation
2.5.5 Rainfall Infiltration Boundary Condition
2.6 Typical Pore-water Pressure Profiles Under Rainfall Condition
2.7 Soil Conditions Under Which Matric Suction Can be Maintained
2.7.1 Pore-water Pressure Profiles Under Steady-state Conditions
2.7.2 Pore-water Pressure Profiles Under Transient Seepage Conditions
2.7.2.1 Effect of air-entry value on the wetting front
2.7.2.2 Effect of the saturated coefficient of permeability
2.7.2.3 Influence of water storage coefficient
2.7.2.4 Effect of the groundwater boundary conditions
2.7.3 Geotechnical Engineering Implications
References
Chapter 3 Stability Analysis of Slope Under Rainfall Infiltration Based on Limit Equilibrium
3.1 Introduction
3.2 Infinite-slope Stability Analysis Based on One-dimensional Infiltration Profile
3.2.1 General Equation of Factor of Safety for Infinite Unsaturated Slope
3.2.2 Simplified Scenarios of Various Seepage Conditions
3.2.2.1 Steady-state condition with seepage parallel slope surface
3.2.2.2 Transient condition with different shapes of wetting front
3.2.3 Slope Stability Based on Estimated Nonlinear Unsaturated Shear Strength
3.2.3.1 Fredlund et al.（1996） nonlinear shear strength equation
3.2.3.2 Vanapalli et al.（1996） nonlinear shear strength equation
3.2.3.3 Vilar （2006） nonlinear shear strength equation
3.2.3.4 Khalili and Khabbaz （1998） nonlinear shear strength equation
……
Chapter 4 Coupled Hydromechanical Analysis for Unsaturated Soil Slope
Chapter 5 Stability of Soil Slope with Cracks
Chapter 6 Stability Analysis of Colluvium Slopes Upon A Rainstorm
Chapter 7 Reliability Analysis of Slope Under Rainfall
Chapter 8 Probabilistic Assessment of Randomly Heterogeneous Soil Slopes
Chapter 9 Probabilistic Model Calibration
Index
