17CVL57 Geotechnical Engineering Laboratory syllabus for CV

Modules

1. Visual soil classification. Water content determination by oven drying method and infrared moisture method. Specific gravity test (pycnometer and density bottle method).

2. Grain size analysis

i. Sieve analysis

ii. Hydrometer analysis

3. In-situ density tests

i. Core-cutter method

ii. Sand replacement method

4. Consistency limits

i. Liquid limit test (by Casagrande's and cone penetration method)

ii. Plastic limit test iii. Shrinkage limit test

5. Standard compaction test (light and heavy compaction)

6. Co-efficient of permeability test

i. Constant head test

ii. Variable head test

7. Shear strength tests

i. Unconfined compression test

ii. Direct shear test

iii. Triaxial test (undrained unconsolidated)

8. Consolidation test : Determination of compression index and co- efficient of consolidation

9. Laboratory vane shear test

10. Demonstration of Swell pressure test, Standard penetration test and boring equipment

Course outcomes:

Students will be able to conduct appropriate laboratory/field experiments and interpret the results to determine

1. Physical and index properties of the soil

2. Classify based on index properties and field identification

3. To determine OMC and MDD, plan and assess field compaction program

4. Shear strength and consolidation parameters to assess strength and deformation characteristics

5. In-situ shear strength characteristics (SPT- Demonstration)

Question paper pattern:

• All experiments are to be included in the examination except demonstration exercises.
• Candidate to perform experiment assigned to him
• Marks are to be allotted as per the split up of marks shown on the cover page of answer script

Reference Books:

1. Punmia B C, Soil Mechanics and Foundation Engineering- (2017), 16th Edition, Laxmi Publications co., New Delhi.

2. Lambe T.W., “Soil Testing for Engineers”, Wiley Eastern Ltd., New Delhi.

3. Head K.H., “Manual of Soil Laboratory Testing” Vol. I, II, III, Princeton Press

4. Bowles J.E., “Engineering Properties of Soil and Their Measurements”,- McGraw Hill Book Co. New York.

5. Relevant BIS Codes of Practice: 2720(Part-3/Sec. 1) – 1987; IS 2720 (Part – 2)- 1973; IS 2720 (Part – 4) – 1985; IS 2720 (Part – 5) – 1985; IS 2720 (Part – 6) – 1972; IS 2720 (Part – 7) – 1980; IS 2720 (Part – 8) – 1983; IS 2720 (Part – 17) – 1986; IS 2720 (Part - 1 0) – 1973; IS 2720 (Part – 13) – 1986; IS2720 (Part 11) – 1971; IS2720 (Part 15) – 1986; IS 2720 (Part 30) – 1987; IS 2720 (Part 14) – 1977; IS 2720 (Part – 14) – 1983; IS 2720 (Part – 28) – 1974; IS 2720 (Part – 29) – 1 966, IS 2720 (Part-60) 1965.