2nd Edition

Slope Stability Analysis and Stabilization New Methods and Insight, Second Edition

By Y. M. Cheng, C. K. Lau Copyright 2014
    438 Pages 243 B/W Illustrations
    by CRC Press

    438 Pages 243 B/W Illustrations
    by CRC Press

    Includes Recommendations for Analysis, Design Practice, Design Charts, Tables, and More

    Using a unified approach to address a medley of engineering and construction problems, Slope Stability Analysis and Stabilization: New Methods and Insight, Second Edition provides helpful practical advice and design resources for the practicing engineer. This text examines a range of current methods for the analysis and design of slopes, and details the limitations of both limit equilibrium and the finite element method in the assessment of the stability of a slope. It also introduces a variety of alternative approaches for overcoming numerical non-convergence and the location of critical failure surfaces in two-dimensional and three-dimensional cases.

    What’s New in the Second Edition:

    This latest edition builds on the concepts of the first edition and covers the case studies involved in slope stability analysis in greater detail. The book adds a chapter on the procedures involved in performing limit equilibrium analysis, as well as a chapter on the design and construction practice in Hong Kong. It includes more examples and illustrations on the distinct element of slope, the relation between limit equilibrium and plasticity theory, the fundamental connections between slope stability analysis and the bearing capacity problem, as well as the stability of the three-dimensional slope under patch load conditions.

    • Addresses new concepts in three-dimensional stability analysis, finite element analysis, and the extension of slope stability problems to lateral earth pressure problems
    • Offers a unified approach to engineering and construction problems, including slope stability, bearing capacity, and earth pressure behind retaining structures
    • Emphasizes how to translate the conceptual design conceived in the design office into physical implementation on site in a holistic way
    • Discusses problems that were discovered during the development of associated computer programs

    This text assesses the fundamental assumptions and limitations of stability analysis methods and computer modelling, and benefits students taking an elective course on slope stability, as well as geotechnical engineering professionals specializing in slope stability

    Introduction

    Introduction

    Background

    Closed-form solutions

    Engineering judgment

    Ground model

    Status quo

    Ground investigation

    Design parameters

    Groundwater regime

    Design methodology

    Case histories

    Basic slope stability analysis methods

    Introduction

    Slope stability analysis: limit equilibrium method

    Miscellaneous considerations on slope stability analysis

    Limit analysis method

    Rigid element method

    Relation between the REM and the slice-based approach

    Uses of design figures and tables for simple problems

    Finite element method

    Distinct element method

    Location of critical failure surface, convergence and advanced formulations

    Difficulties in locating the critical failure surface

    Generation of trial failure surface

    Global optimization methods

    Verification of the global minimization algorithms

    Presence of Dirac function

    Numerical studies of the efficiency and effectiveness of various optimization algorithms

    Sensitivity of global optimization parameters in the performance of the global optimization methods

    Convexity of critical failure surface

    Lateral earth pressure determination from slope stability analysis

    Convergence problem due to iterative solution of FOS

    Importance of the methods of analysis

    Solution of the inter-slice force function and fundamental investigation into the problem of convergence

    Variable FOS formulation in LEM

    Use of internal/external variables in slope stability analysis and relation of slope stability problem to other geotechnical problems

    Finite-element methods for slope stability analysis and comparisons with limit equilibrium analysis

    Comparisons between SRM and LEM

    Stability analysis for a simple and homogeneous soil slope using LEM and SRM

    Stability analysis of a slope with a soft band

    Local minimum in LEM

    Effect of water on slope stability analysis

    Soil nailed slopes by SRM and LEM

    Stabilization of slope with piles using SRM

    Discussion and conclusion

    Three-dimensional slope stability analysis

    Limitations of the classical three dimensional limit equilibrium methods

    New formulation for D slope stability analysis: Bishop, Janbu simplified, Morgenstern–Price by Cheng and Yip

    Three-dimensional limit analysis

    Location of general critical non-spherical D failure surface

    Case studies in D limit equilibrium global optimization analysis

    Effect of curvature on FOS

    Three-dimensional SRM analysis

    Implementation

    Introduction

    FRP nail

    Drainage

    Construction difficulties

    Routine assessment of feature and design of landslip preventive measures

    Introduction

    Geotechnical assessment

    Desk study

    Aerial photograph interpretation and ground-truthing

    GI and field testing

    Laboratory testing

    Man-made features

    Rainfall records

    Groundwater regime

    Stability assessment of the existing feature

    Design of landslip preventive works

    Soil nailing

    Soil nailing in loose fill

    Surface and sub-soil drainage

    Surface erosion control and landscaping

    Site supervision during implementation

    Corrosiveness assessment

    Precautionary measures and other considerations

    Long-term maintenance

    Numerical implementation of slope stability analysis methods

    Numerical procedures for simplified limit equilibrium methods

    Numerical procedures for "rigorous" limit equilibrium methods

    Three-dimensional analysis

    Appendix

    References

    Index

    Biography

    Dr. YM Cheng has an interest in research work in slope stability: unification of 2D methods, location of critical 2D failure surfaces, 3D slope stability analysis, location of critical 3D failure surfaces, development of slope stability software SLOPE2000 and SLOPE3D, unification of lateral earth pressure and slope stability problems, convergence problems in slope stability analysis, field tests of steel, GFRP, CFRP bars and tubes soil nails in Hong Kong, numerical modelling of soil nail pull out tests, finite element analysis of slope stability, and distinct element analysis of slope stability analysis.

    Dr. C.K. Lau obtained his PhD from Cambridge University, studying geotechnical engineering under Prof. M. Bolton. He is a past chairman of Geotechnical Division, Hong Kong Institution of Engineers, specializing in the design and construction of slope stabilization works in Hong Kong. His research interests include slope stability, slip line analysis, and bearing capacity.