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

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

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.