This short course should be of interest to geotechnical engineers, structural 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 retaining structures and shallow foundations. All key concepts and terminology will be explained and emphasis will be placed on the practical application of the information provided.
This course is a comprehensive foundation engineering course dealing with retaining structures, shallow foundations, and excavations. Major emphasis will be on the analytical methods and the problem solving aspects as related to retaining structures and shallow foundations. This course provides the participants with an opportunity to apply the design procedures to "real life" challenging geotechnical design projects.
The main objective of this course is to equip the participants with the needed tools to select the best foundation solution for each particular project. After completing the course participants should be able to design retaining structures and shallow foundations and supervise their construction. The course philosophy is to provide the participants with the information they need to design foundations at the state of the art.
Structural, civil, and geotechnical engineers, consulting engineers, technicians and technologists, public works, and construction department employees of federal, provincial, and municipal governments, and engineers responsible for large industrial, commercial, or institutional facilities who must deal with different types of foundations, and foundation construction contractors.
The two-day course consists of a series of lectures and workshops. Worked examples with numerical reference reinforce the lecture content. Case studies which illustrate the full range of problems are a feature of the course. There are workshops conducted under instructor guidance on bearing capacity, shallow foundation design, settlement analysis, and a workshop for retaining structures design examples.
- Geotechnical Properties of Soil
- Grain-size distribution.
- Atterberg limits.
- Effective stress concept.
- Shear strength of soils.
- Consolidation Theory
- The oedometer test.
- Consolidation settlement: 1D method.
- Settlement by the Skempton–Bjerrum method.
- Degree of consolidation.
- Terzaghi’s theory of one-dimensional consolidation.
- Application of Earth Pressure Theory to Retaining Walls
- Design of earth-retaining structures.
- Gravity walls.
- Embedded walls.
- Braced excavations.
- Retaining Structures Design Workshop
- Shallow Foundations: Ultimate Bearing Capacity
- General concept.
- General bearing capacity equation.
- Shape, depth, and inclination factors.
- Effect of soil compressibility.
- Eccentrically loaded foundations.
- Combined foundations.
- Worked examples.
- Special Bearing Capacity Cases
- Bearing capacity of layered soils.
- Bearing capacity of foundations on top of a slope.
- Settlement Analysis for Shallow Foundation
- Stress due to different loaded areas.
- Elastic settlement based on the theory of elasticity.
- Range of material parameters for computing elastic settlement.
- Primary consolidation settlement relationships.
- Consolidation settlement – case history.
- Settlement due to secondary consolidation.
- Allowable bearing pressure in sand based on settlement consideration.
- Presumptive bearing capacity.
- Tolerable settlement of buildings.
- Worked examples.
- Shallow Foundation Design Workshop
- Questions and Answers and Feedback to Participants on Achievement of Learning Outcomes
- Concluding Remarks and Final Adjournment
- Judge when shallow foundations should be considered,
- Recognize the failure modes of shallow foundations,
- Determine the bearing capacity of shallow foundations on soils and rocks,
- Calculate vertical stress distribution below a shallow foundation,
- Find the primary consolidation settlement of shallow foundations on cohesive and non-cohesive soils,
- Describe procedures for construction inspection and performance monitoring of shallow foundations, and
- Use analytical techniques for analysis and design of retaining structures.
Associate Professor of Geotechnical Engineering, Dalhousie University
Hany is an Associate Professor of Geotechnical Engineering at Dalhousie University with more than 20 years of experience in civil construction, geotechnical and structural engineering, and research in Canada and overseas. He has participated in several structural and geotechnical investigations, and is experienced in analysis and design of foundations and soil-structure interaction of buried infrastructure. Dr. El Naggar and his research team has investigated the soil-structure interaction (SSI) effects around buried infrastructure; explored innovative use of tire derived aggregate (TDA) as a buffer zone to create stress arching and reduce demand on rigid culverts, proposed an earth pressure reduction system using geogrid reinforced platform bridging system to reduce stresses on buried utilities, and developed innovative “cellular” precast concrete pipe system. He has also developed a simplified technique to account for the group effect in pile dynamics; and closed form solutions for the moments and thrusts in jointed and un-jointed composite lining systems, designed several foundation systems ranging from machine foundations subjected to dynamic loads to raft foundations for underground structure, as well as several tunnels and underground structures in the United States, Europe and Canada.
The findings from Dr. El Naggar’s research have been reported in more than 65 technical publications covering both experimental and numerical work in the fields of soil-structure interaction, buried infrastructure and concrete pipes. He is the recipient of the 2005–2006 Outstanding Teaching Award from the Department of Civil and Environmental Engineering at Western. Prof. El Naggar won the 2006 L. G. Soderman Award, the 2005 R.M. Quigley Award, and the 2004 Milos Novak Memorial Award. Dr. El Naggar is the current chair of the Buried Structures Committee, CSCE; also, he is member of the technical committee on buried structures of the Canadian Highway Bridge Design Code (CHBDC). In addition, he is the current editor in chief of the International Journal of Civil Infrastructure.