Semester:

5

Course Code:

CE3070

Course Name:

Geotechnical Engineering and Design I

Credit Value:

3 (Notional hours: 150)

Prerequisites:

CE2140

Core/Optional

Core

Hourly Breakdown

Lecture hrs.

Tutorial hrs.

Practical hrs.

Assignment hrs.

Independent Learning & Assessment hrs.

35

4

2

10

99

Course Aim: To impart knowledge on analysis and design of geotechnical structures such as retaining structures, shallow foundations and provisional structures, and conducting site investigations and ground modifications.

Intended Learning Outcomes:

On successful completion of the course, the students should be able to;

➢      analyze and design internally and externally stabilized retaining structures using earth pressure theories conforming to Eurocode 7 (EC7).

➢      analyze and design shallow foundations in cohesive and cohesionless soils conforming to EC7.

➢      organize and perform a site investigation programme to obtain material profile and parameters required for design and propose appropriate ground modification methods where necessary.

➢      analyze and design provisional structures such as sheet pile walls and braced cuts conforming to EC7.

Course Content:

➢      Introduction to Eurocode 7: Relevant codes, geotechnical risk, action and resistance, ultimate limit state; Different limit states, design approaches and partial factors, Serviceability limit state; Action and performance criteria.

➢      Lateral earth pressure & retaining walls: Types of retaining structures, active and passive earth pressure, Rankine theory, Coulomb theory, stability analyses, detailing of retaining walls, internally stabilized walls; introduction, design criteria, methods of analyses, design of an earth retaining structure.

➢      Shallow foundations: Foundation types, bearing capacity failure, bearing capacity theory, general bearing capacity equation for short-term and long-term loading, EC7 guidelines for shallow foundation design, eccentric and inclined loading, elastic and consolidation settlement, use of computer software for analysis of shallow foundations, design of shallow foundations.

➢      Site investigation: Purpose of site investigation, direct methods of subsurface exploration, direct and indirect methods of site investigation, sampling and sampling methods, site investigation report.

➢      Ground improvement: Introduction, different methods of ground improvement, mechanisms and limitations of different methods

➢      Provisional structures: Sheet piles; Introduction, cantilevered and anchored sheet pile walls, methods of analyses, effect of water table, Braced excavations; Introduction, pressure envelopes for sand and clay, analysis and design of components, bottom heave.

Teaching /Learning Methods:

Classroom lectures, tutorial discussions, supervised design exercises, software demonstrations, laboratory demonstrations

Assessment Strategy:

Continuous Assessment

40%

Final Assessment

60%

Details:

Quizzes 30%

Design reports 10%

Theory (%)

60

Practical (%)

-

Other (%)

-

Recommended Reading:

➢      Das, B.M., & Sivakugan, N. (2017). Principles of Foundation Engineering, 9th edn, Cengage.

➢      Jie Han. (2015). Principles and Practice of Ground Improvement, 1st edn, Wiley.

➢      Smith, I. (2014). Smith’s Element of Soil Mechanics (Design to Eurocode), 9th edn, Blackwell publishing.

➢      Robert, M.K. (2012). Designing with geosynthetics, 6th edn, Prentice Hall.

➢      Coduto, D.P. (2011). Geotechnical Engineering: principles and practices, 2nd edn, Pearson.

➢      EN 1997-2:2007, Eurocode 7 - Geotechnical design - Part 2: Ground investigation and testing, CEN.

➢      Robert, W.D. (1999). Geotechnical and foundation engineering: design & constructions, McGraw- Hill.

➢      Bowles, J.E. (1997). Foundation analysis and design, 5th edn, McGraw Hill.

➢      Plaxis Version 8, Reference and tutorial manuals.