Semester:

4

Course Code:

CE2140

Course Name:

Soil Mechanics and Engineering Geology II

Credit Value:

3 (Notional hours:150)

Prerequisites:

None

Core/Optional

Core

Hourly Breakdown

Lecture hrs.

Tutorial hrs.

Practical hrs.

Assignment hrs.

Independent Learning & Assessment hrs.

40

3

2

2

103

Course Aim: To impart knowledge and an understanding of stress-strain and permeability behaviour of soils and geological concepts in engineering practice.

Intended Learning Outcomes:

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

➢    determine the permeability of the soil and perform seepage related calculations for engineering applications.

➢    predict consolidation settlement using one-dimensional Terzaghi theory

➢    evaluate shear strength parameters of soils for the design of geotechnical structures.

➢    classify rocks and determine engineering properties of rocks.

➢    organize and perform a site investigation programme using indirect methods to obtain material profile and parameters for geotechnical designs.

Course Content:

➢    Permeability and Seepage: Laboratory and field determination of coefficient of permeability of the soil; Permeability in stratified soil; Seepage forces; Stresses due to flow; Seepage and flow nets; Calculation of seepage flow; Seepage pressure and uplift force.

➢    Stress analysis in soils: Stress-strain relationships; Stress induced by applied loads on soils.

➢    Consolidation: 1-D consolidation characteristics; Ground settlement due to consolidation; Terzaghi one dimensional consolidation theory; Time-dependent ground settlement

➢    Shear Strength: Mohr-Coulomb theory; Laboratory and field methods to determine shear strength parameters using Direct shear test, Triaxial shear test (UU,CU,CD), Vane shear test etc.

➢    Rocks: Engineering classification of rocks; Engineering properties of rocks; Rock failure criteria.

➢    Geological Explorations: Indirect methods for site investigations; Seismic survey; Resistivity method

Teaching /Learning Methods:

Classroom lectures, tutorial discussions, laboratory demonstrations

Assessment Strategy:

Continuous Assessment

40%

Final Assessment

60%

Details:
Assignments/Quizzes/Tutorials 20%
Mid Semester Examination 20%

Theory (%)

60

Practical (%)

-

Other (%)

-

Recommended Reading:

➢    Knappett, J.A. & Craig, R.F. (2017). Craig’s Soil Mechanics, Taylor & Francis, 8th edn, New York.

➢    Das, B.M. & Sobhan, K. (2014). Principles of Geotechnical Engineering, 8th edn, PWS Publishers.

➢    Lamb, T.W. & Whitman, R.V. (2008). Soil Mechanics, SI Version, Wiley India Pvt. Limited.

➢    Blyth, F.G.H. & De Freitas, M.H. (1984). Geology for Engineers, 7th edn, ELBS Publication.

➢    Cooray, P.G. (1984). An Introduction to the Geology of Sri Lanka, 2nd edn, National Museums of Sri Lanka.

Recommended Reading:

➢    Chudley, R. and Greeno, R. (2012). Building Construction Handbook, 10th edition, Routledge, Taylor and Francis Group, London and New York.

➢    Royal Institution of Chartered Surveyors. (1988). Standard Method of Measurement SMM7, 7th edition.