1st Edition

Rainfall-Induced Soil Slope Failure Stability Analysis and Probabilistic Assessment

By Lulu Zhang, Jinhui Li, Xu Li, Jie Zhang, Hong Zhu Copyright 2016
    398 Pages 20 Color & 293 B/W Illustrations
    by CRC Press

    398 Pages 20 Color & 293 B/W Illustrations
    by CRC Press

    398 Pages 20 Color & 293 B/W Illustrations
    by CRC Press

    Rainfall-induced landslides are common around the world. With global climate change, their frequency is increasing and the consequences are becoming greater. Previous studies assess them mostly from the perspective of a single discipline—correlating landslides with rainstorms, geomorphology and hydrology in order to establish a threshold prediction value for rainfall-induced landslides; analyzing the slope’s stability using a geomechanical approach; or assessing the risk from field records.

    Rainfall Induced Soil Slope Failure: Stability Analysis and Probabilistic Assessment integrates probabilistic approaches with the geotechnical modeling of slope failures under rainfall conditions with unsaturated soil. It covers theoretical models of rainfall infiltration and stability analysis, reliability analysis based on coupled hydro-mechanical modelling, stability of slopes with cracks, gravels and spatial heterogenous soils, and probabilistic model calibration based on measurement. It focuses on the uncertainties involved with rainfall-induced landslides and presents state-of-the art techniques and methods which characterize the uncertainties and quantify the probabilities and risk of rainfall-induced landslide hazards.

    Additionally, the authors cover:

    • The failure mechanisms of rainfall-induced slope failure
    • Commonly used infiltration and stability methods
    • The infiltration and stability of natural soil slopes with cracks and colluvium materials
    • Stability evaluation methods based on probabilistic approaches
    • The effect of spatial variability on unsaturated soil slopes and more

    Slope Failures under Rainfall and Failure Mechanisms
    Recent Advances and Hot Research Topics
    Outline of the Book

    Infiltration and Seepage Analysis in Soil Slopes
    Estimation of Infiltration Rate Based on Conceptual Model
    Seepage Analysis in Unsaturated Soil Slopes Based on Physical Governing Equation
    Analytical Solutions of the Richards Equation
    Numerical Analysis of the Richards Equation
    Typical Pore-Water Pressure Profiles under Rainfall Condition
    Soil Conditions under Which Matric Suction Can Be Maintained

    Stability Analysis of Slope Under Rainfall Infiltration Based on Limit Equilibrium
    Infinite-Slope Stability Analysis Based on 1D Infiltration Profile
    Slope Stability Analysis Based on Limit Equilibrium Methods
    Controlling Factors for Rainfall-Induced Landslides
    Spatially Distributed Model of Hazard Assessment of Rainfall-Induced Landslides

    Coupled Hydromechanical Analysis for Unsaturated Soil Slope
    Modeling of Unsaturated Soil Based on Continuity Mechanics
    Slope Stability Analysis Based on Coupled Modeling
    Illustrative Examples

    Stability of Soil Slope with Cracks
    Prediction of Unsaturated Hydraulic Functions of Cracked Soil
    Stability of Soil Slope with Cracks

    Stability Analysis of Colluvium Slopes upon a Rainstorm
    Hydraulic Properties of Colluvial Soils
    Shear Strength of Colluvial Soils
    An Example

    Reliability Analysis of Slope under Rainfall
    Fundamental Concept of Reliability
    Reliability Methods and Applications on Slope Stability
    Uncertainties of Soil Properties
    Effects of Uncertainty of Hydraulic Properties on Infiltration and Slope Stability
    Reliability Analysis of Rainfall-Induced Slope Failure: An Example of the Sau Mau Ping Landslide
    Quantitative Risk Assessment of Landslide and Risk Acceptance Criteria

    Probabilistic Assessment of Random Heterogeneous Soil Slopes
    Spatial Variability of Soils
    Random Field Theory
    Modeling of Random Field
    Seepage and Stability of a Random Heterogeneous Slope under Rainfall Infiltration

    Probabilistic Model Calibration
    Probabilistic Model Calibration within Bayesian Framework
    Markov Chain Monte Carlo Simulation Method
    Procedures for Probabilistic Model Calibration and Prediction
    Example 1: A Cut Slope Failure
    Example 2: Lai Ping Road Landslide
    Example 3: An Instrumented Site of Natural Terrain in Hong Kong


    Lulu Zhang Lulu is a professor at Shanghai Jiaotong University, China.

    Jinhui Li is an associate professor at Harbin Institute of Technology, China.

    Xu Li is an associate professor at Beijing Jiaotong University, China.

    Jie Zhang is an associate professor at Tongji University, China.

    Hong Zhu is a research assistant at Hong Kong University of Science and Technology.

    "The authors are to be commended for bringing together the many components related to rainfall induced landslides. I foresee that this book will be well-received by practicing engineers and researchers, and I believe that the book will form a reference book that is in demand in university libraries. I am sure that the book will be in demand and meet an important need."
    —Delwyn G. Fredlund, Professor Emeritus, University of Saskatchewan, Canada

    "This book concisely presents the fundamental mechanics behind rain-induced soil slope failures: rainfall infiltration in soil slopes, slope stability under rainfall infiltration, and hydro-mechanical coupled deformation. The concepts and analyses are presented clearly from the first principle with a strong physical sense. Some advanced topics, such as hydro-mechanical coupled numerical analysis in unsaturated soils, are approached in a plain manner with hand-on tutorials. The analysis of the stability of slopes with cracks is an excellent addition—practitioners are aware of the vital importance of cracks but few have the knowhow to quantify cracks and their effects. The book is therefore an excellent text for graduate students and a good reference for geologists and engineers."
    —Limin Zhang, Hong Kong University of Science and Technology

    "The book is an important contribution to unsaturated soil mechanics and slope stability analysis... The authors present state-of-the art techniques in analysis and provide an exhaustive bibliography."

    --Wei Wu, Acta Geotechnica