7/29/2019 Cle205 Soil-mechanics Eth 2.10 Ac19

1/2

CLE 205 SOIL MECHANICS

Course Prerequisites: MAT-101

Version No. : 1.01

Objectives:1. To impart the fundamental concepts of soil mechanics2. To understand the bearing capacity3. To know the importance of index properties like grain size, consistency limits, soil classification4. To understand the concept of compaction and consolidation of soils

Expected Outcome : Students will be able to1. Identify the properties for good foundation sites2. Students should be able to find permeability of soil.3. Know the importance engineering properties such as Consolidation, Shear strength.

UNIT I : Weight volume relations and Index properties (9 hours)

Importance of geotechnical engineering 3-phase diagram Weight-volume relations Index properties of

soils Simple soil engineering tests - Atterbergs limits Classification of soils Theory of compaction.

UNIT II: Soil water and Permeability (9 hours)

Soil water - Effective and neutral stresses Flow of water through soils Permeability Darcys law

Seepage and flow-nets - Quick sand.

UNIT III: Stress distribution in soils (9 hours)

Vertical pressure distribution = Boussinesqs equation for point load and uniformly distributed loads of

different shapes Newmarks influence chart Westergaards equation Isobar diagram Pressure bulb -Contact pressure

UNIT IV: Compressibility and Consolidation (9 hours)

Compressibility e-log p curve Preconsolidation pressure - Primary consolidation Terzaghis

consolidation theory - Laboratory consolidation test Determination of C vby Taylors and Casagrandesmethods

UNIT V: Shear strength of soils (9 hours)

Stress analysis by Mohrs circle - Mohrs strength theory Shear strength of soils Mohr-Coloumb

strength envelope Laboratory shear tests Direct shear test Triaxial compression Unconfined

compression test Vane shear test Shear strength of saturated cohesive soils Shear strength ofcohesionless soils - conditions for liquefaction

Text Book:1. Dr.K.R.Arora (2001), Soil Mechanics and Foundation Engineering, Standard Publishers, Delhi 110

006.

Reference Books:

1. Shashi K Gulhati & Manoj Datta (2005), Geotechnical Engineering Principles and Practices PearsonEducation Ltd.2. Prasad (2006),Soil Dynamics & Earth Quake Engineering, Prentice-Hall of India.3. Varghese (2006), Foundation Engineering, Prentice Hall of India.4. Donald P Coduto (2002), Geotechnical Engineering Principles and practices, Pearson Education Ltd.Mode of Evaluation: Assignment, Seminar and Written Examination.

Recommended by the Board of Studies on : 31/10/09

Date of approval by the Academic Council : 21/11/09

L T P C

2 1 2 4

7/29/2019 Cle205 Soil-mechanics Eth 2.10 Ac19

2/2

CLE 205 SOIL MECHANICS LAB

Course Prerequisites: MAT-101

Version No. : 1.01

Objectives:

1. To gain experience regarding the determination of properties of different types of soils andunderstand how they behave

2. To provide an opportunity to learn how to measure the shear strength of the soil and its importance3. To impart knowledge about the foundation engineering

Expected Outcome : Student will be able to

1. Determine the index properties of the soil2. Classify the soil

3. Indetify the suitability of the soil for different foundations

Details of Experiments

1. Determination of Moisture Content. (IS 2720 Part 2 1973 Water Content)2. Determination of Specific Gravity & Relative Density for sand. (IS 2720 part 3 section 1 & 2

specific gravity, IS 2720 Part 14 1983 determination of density index)3. Sieve Analysis for Coarse Grained soil (IS 2720 Part 4 -1985 grain size analysis)4. Consistency Limits and Indices (IS 2720 part 5 1985 determination of liquid limit & plastic limit)5. Standard Proctors Compaction Test (IS 2720 part 15 1986 consolidation properties)6. Field Density Test (IS 2720 Part 27 & 28 1975 Dry density in place by sand replacement & core

cutter method)

7. Permeability Test (IS 2720 Part 17 & 36 1987 Determination of permeability)8. Unconfined Compression Test for Cohesive Soil (IS 2720 Part 10 1991 Unconfined

Compressive Strength)

9. Vane Shear Strength for Cohesive Soil (IS 2720 Part 30 1980 Laboratory vane shear test)10. Direct Shear Test on Sand (IS 2720 Part 13 1986 Direct shear test)11. California Bearing Ratio Test (IS 2720 Part 16 -1987 laboratory determination of CBR)12. Triaxial Compression Test (IS 2720 Part 11 & 12 1983 Triaxial test)13. Consolidation Test (Consolidation Properties)Reference Books:

1. Geo technical Lab Manual Prepared by VIT Staff.

2. Lambe T.N. (1997), Soil Testing for Engineers, John Wiley Ltd.3. T.K.Bowles (1998), Engineering Properties of Soils and their measurements, Tata McGraw Hill

Publications

Mode of Evaluation : Experiments/Record Work/Oral/Practical Examinations.

Recommended by the Board of Studies on : 31/10/09

Date of approval by the Academic Council : 21/11/09