# Foundations

## Course Description:

General principles of foundation design. Shallow foundations: Bearing capacity of foundations under central, eccentric and inclined loading. Principles of calculation of foundation settlement. Models of the soil reaction, contact pressures, settlements of foundations in cohesive and cohesionless soils, allowable deformations. Design of shallow foundations: spread and combined footings, strip foundations, mat foundations. Deep foundations: Construction considerations. Methods of deriving pile capacity for driven and bored piles in cohesive and cohesionless soils.. Settlement of single piles. Axial capacity and settlement of piles in groups. Negative shaft friction, lateral loading of piles. Principles of the foundation design based on Eurocode EC-7.

### Prerequisite Knowledge

Basic knowledge of Mechanics and Soil Mechanics

### Course Units

# Title Description Hours
1 Principles of foundations Foundation types. Contact stresses at the foundation base and linear distribution. 1Χ4=4
2 Bearing capacity of surface foundations. Vertical axial and eccentric loading. Limit analysis methods. 2Χ4=8
3 Calculation of settlements in surface foundations. Calculation using elastic formulae. Settlement analysis in clays and sands. Settlements of beam foundations. Modulus of subgrade reaction. 4Χ3=12
4 Pile foundations Axial capacity of single piles using analytical methods and pile load tests. Settlement of single piles and pile groups. 4Χ4=16
5 Horizontal loading of piles. Analysis of foundations using Eurocode 7. Partial factors and analysis methods for surface foundations and piles. 2Χ4=8

### Learning Objectives

Analysis of the bearing capacity and settlements of different types of surface and pile foundations

### Teaching Methods

 Teaching methods Class lectures and tutor classes. Use of blackboard and PowerPoint slides. Yes Yes. Home assignment of problem sets. Πρόχειρο διαγώνισμα

### Student Assessment

• Final written exam: 60%
• Mid-term exam: 30%
• Problems - Applications: 10%

### Textbooks - Bibliography

Course Notes (in greek) ΣΗΜΕΙΩΣΕΙΣ ΘΕΜΕΛΙΩΣΕΩΝ ΤΕΧΝΙΚΩΝ ΕΡΓΩΝ, Μ. Καββαδάς Περιλαμβάνει τις διαφάνειες των παραδόσεων του μαθήματος ΣΗΜΕΙΩΣΕΙΣ ΘΕΜΕΛΙΩΣΕΩΝ, Β.Ν. Γεωργιάννου "Ανάτυπα διαφανειών από τις παραδόσεις του μαθήματος" Books (in greek) : 1.ΣΧΕΔΙΑΣΜΟΣ ΤΩΝ ΘΕΜΕΛΙΩΣΕΩΝ, Α. Αναγνωστόπουλος & Β. Παπαδόπουλος (από Εύδοξο)

Recommended books:

1. Craig, R.F. (1997), "Soil Mechanics", 6th Edition, E&FN Spon.
2. Poulos, Η.Γ. & E.H. Davis (1980) Pile Foundation Analysis and Design, John Wiley and Sons.
3. U.S. Corps of Engineers publications : http://www.usace.army.mil/pubtypes.html http://www.usace.army.mil/inet/usace-docs/eng-manuals/cecw.html
4. US Federal Highway Administration, Geotechnical Engineering Publications : http://www.fhwa.dot.gov/bridge/geopub.html

## Lecture Time - Place:

• Thursday, 14:45 – 16:30,
Rooms:
• Αιθ. 17
• Ζ. Κτ. 1 Πολ., Αιθ. 1
• Friday, 12:45 – 14:30,
Rooms:
• Ζ. Κτ. 1 Πολ., Αιθ. 7
• Ζ. Κτ. 1 Πολ., Αμφ. 1

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