Online Short Course


Workshop on Design of Machine Foundations

Monday, May 17, Tuesday, May 18 and Wednesday, May 19, 2021

Instructor: Dr. M. Hesham El Naggar, PhD, P.Eng., FEIC
Geotechnical Research Centre, Faculty of Engineering
Western University, London, Ontario N6A 5B9

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The online short course and workshop should be of interest to geotechnical engineers and civil engineers who wish to have a better understanding of the current state-of-the-art with respect to the analysis and design of flexible, rigid and pile foundations subjected to all types of dynamic loads. All key concepts and terminology will be explained, and emphasis will be placed on the practical application of the information provided.


Soil dynamics is the branch of soil mechanics that deals with the behaviour of soil under dynamic loads. Different types of foundations are used to support structures subjected to dynamic loads or vibration producing machines. This course will focus on the analysis and design of these foundations. Topics to be discussed include:

Design objectives, design procedure, basic notions, mathematical models, DOFs, types of dynamic loads, foundation types, excitation forces of machines, dynamic soil properties.

Shallow Foundations
Definition of stiffness, damping and inertia, circular shallow foundation, non-circular foundation, embedded footings, impedance functions of a layer on half-space.

Pile Foundations
Pile applications, mathematical models for pile analysis, stiffness and damping of piles, pile groups, interaction factors, impedance functions of pile groups, pile batter.

Dynamic Response of Machine Foundations
Response of rigid foundations in 1 DOF, effects of vibration, response of rigid foundations in 2 DOF and 6 DOF, response of structures on flexible foundations.

Pump Foundations Workshop
Vertical Pump; Horizontal Pump; Slurry Pump; Pump-Motor-Gear Box System; Multiple Pumps on Same Foundation; Pumps on Flexible Foundation

Computer Workshop – DYNA6.1
Types of foundations, types of soil models, types of load, types of analysis and types of output, practical considerations, computer work on DYNA6.1.