Modeling and Observations of Pile Installation using Vibro Hammers in Fraser River Delta soils

Autor(s):

David Tara, Peter Middendorp, Gerald Verbeek

Year:

2014

Language:

English

Where:

Modeling and Observations of Pile Installation using Vibro Hammers in Fraser River Delta soils


INTRODUCTION:

There has been significant recent interest in the use of vibratory drivers/vibro hammers to install piles in offshore and nearshore applications around the globe. Recent experience using vibratory drivers/vibro hammers is reviewed including lessons learned at the Riffgat Wind Farm project. Soil parameters derived for two local sites, based on the results of cone penetration test profiling and high strain dynamic testing conducted during and/or after completion of installation of piles by impact and/or vibratory methods, can be directly input into Wave Equation Analysis of Pile (WEAP) driving simulation software such as AllWave-PDP to model the vibratory installation process. The results of the analysis are shown to compare well with rudimentary observations during pile installation. Recommendations for better monitoring and analysis of vibro hammer projects are presented as are some of the advantages and challenges of using vibro hammers.


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