A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The dynamic behaviour of pile foundations in seismically liquefiable soils: failure mechanisms, analysis, requalification
This chapter presents a concise overview of the mechanics of failure, analysis and requalification procedures of pile foundations in liquefiable soils during earthquakes. The aim is to build a strong conceptual and technical interpretation in order to gain insight into the mechanisms governing the failure of structures in liquefaction and specify effective requalification techniques. In this regard, several most common failure mechanisms of piles during seismic liquefaction such as bending (flexural), buckling instability and dynamic failure of the pile are introduced. Furthermore, the dynamic response commentary is provided by critically reviewing experimental investigations carried out using a shaking table and centrifuge modelling procedures. The emphasis is placed on delineating the concept of seismic design loads and important aspects of the dynamic behaviour of piles in liquefiable soils. In this context, using Winkler foundation approach with the proposed p–y curves and finite-element analyses in conjunction with numerical analysis methods, are outlined. Moreover, the feasibility of successful remediation techniques for earthquake resistance is briefly reviewed in light of the pile behaviour and failure. Finally, practical recommendations for achieving enhanced resistance of the seismic response of pile foundation in liquefiable soil are provided.
The dynamic behaviour of pile foundations in seismically liquefiable soils: failure mechanisms, analysis, requalification
This chapter presents a concise overview of the mechanics of failure, analysis and requalification procedures of pile foundations in liquefiable soils during earthquakes. The aim is to build a strong conceptual and technical interpretation in order to gain insight into the mechanisms governing the failure of structures in liquefaction and specify effective requalification techniques. In this regard, several most common failure mechanisms of piles during seismic liquefaction such as bending (flexural), buckling instability and dynamic failure of the pile are introduced. Furthermore, the dynamic response commentary is provided by critically reviewing experimental investigations carried out using a shaking table and centrifuge modelling procedures. The emphasis is placed on delineating the concept of seismic design loads and important aspects of the dynamic behaviour of piles in liquefiable soils. In this context, using Winkler foundation approach with the proposed p–y curves and finite-element analyses in conjunction with numerical analysis methods, are outlined. Moreover, the feasibility of successful remediation techniques for earthquake resistance is briefly reviewed in light of the pile behaviour and failure. Finally, practical recommendations for achieving enhanced resistance of the seismic response of pile foundation in liquefiable soil are provided.
The dynamic behaviour of pile foundations in seismically liquefiable soils: failure mechanisms, analysis, requalification
Rostami, Rohollah (author) / Mickovski, Slobodan B. (author) / Hytiris, Nicholas (author) / Bhattacharya, Subhamoy (author) / Salazar, Walter
2020-12-18
Rostami , R , Mickovski , S B , Hytiris , N & Bhattacharya , S 2020 , The dynamic behaviour of pile foundations in seismically liquefiable soils: failure mechanisms, analysis, requalification . in W Salazar (ed.) , Earthquakes: From Tectonics to Buildings . IntechOpen . https://doi.org/10.5772/intechopen.94936
Article/Chapter (Book)
Electronic Resource
English
Seismic Requalification of Pile Foundations in Liquefiable Soils
| Springer Verlag | 2014
Seismic Requalification of Pile Foundations in Liquefiable Soils
| Online Contents | 2014
Design of pile foundations in liquefiable soils
| TIBKAT | 2010
Numerical investigation of behaviour of pile foundations in liquefiable soils
| British Library Conference Proceedings | 2008
Design of pile foundations in liquefiable soils
| TIBKAT | 2010