Design of Pile Foundations in Liquefiable Soils
Imperial College Press, 2010 - Earthquake engineering - 232 pages
Pile foundations are the most common form of deep foundations that are used both onshore and offshore to transfer large superstructural loads into competent soil strata. This book provides many case histories of failure of pile foundations due to earthquake loading and soil liquefaction. Based on the observed case histories, the possible mechanisms of failure of the pile foundations are postulated. The book also deals with the additional loading attracted by piles in liquefiable soils due to lateral spreading of sloping ground. Recent research at Cambridge forms the backbone of this book with the design methodologies being developed directly based on quantified centrifuge test results and numerical analysis. The book provides designers and practicing civil engineers with a sound knowledge of pile behaviour in liquefiable soils and easy-to-use methods to design pile foundations in seismic regions. For graduate students and researchers, it brings together the latest research findings on pile foundations in a way that is relevant to geotechnical practice. Sample Chapter(s). Foreword (85 KB). Chapter 1: Performance of Pile Foundations (4,832 KB). Contents: Performance of Pile Foundations; Inertial and Kinematic Loading; Accounting for Axial Loading in Level Ground; Lateral Spreading of Sloping Ground; Axial Loading on Piles in Laterally Spreading Ground; Design Examples. Readership: Researchers, academics, designers and graduate students in earthquake engineering, civil engineering and ocean/coastal engineering.
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assumed axial load bearing capacity bearing layer behaviour bending moments buckling calculated centrifuge tests Chapter coefficients considered cyclic dense sand layer depth design of piles dynamic earthquake loading effective stress estimated Eurocode example excess pore pressure failure mechanisms fixity Geotechnical Geotechnical Engineering horizontal increase inertial and kinematic inertial load interaction Kandla Port kinematic loads Knappett Kobe earthquake lateral displacement lateral loads laterally spreading ground laterally spreading soil level ground liquefaction-induced liquefiable layer liquefied sand liquefied soil method Niigata nonliquefied crust nonliquefied layer number of piles p-y curves peak pier pile cap pile diameter pile foundations pile group pile head pile length pile tip plastic hinges rotation ru,base seismic settlement shear modulus shear stress Shinano river Showa bridge shown in Fig silty sand layer single pile sloping ground soil layers soil liquefaction soil profile soil stiffness soil-pile static suffer superstructure Tokimatsu Young’s modulus