BAG301

Soil Mechanics

L-T-P3-1-0 Credits4 Session2023-24 TypeTheory
Appears in 1 semester

B.Tech Agricultural Engineering · Sem 3 (Core)

Syllabus

5 units
Unit1

Unit 1

Nature and origin of soil; Soil forming rocks and minerals their classification and composition, important physical properties of soil. Introduction of soil mechanics, fields of soil mechanics, phase diagram, physical and index properties of soil, classification of soils.

Unit2

Unit 2

Permeability, Darcy's Law, laboratory determination of hydraulic conductivity, equivalent hydraulic conductivity in stratified soil., effective and neutral stress, elementary concept of Boussinesq and Wester guards analysis, new mark influence chart.

Unit3

Unit 3

Shear strength, Mohr stress circle, theoretical relationship between principle stress circle, theoretical relationship between principal stress, Mohr coulomb failure theory, effective stress principle. Determination of shear parameters by direct shear test, triaxial test & vane shear test. Numerical exercise based on various types of tests.

Unit4

Unit 4

Compaction, composition of soils standard and modified protector test, abbot compaction and Jodhpur mini compaction test field compaction method and control. Consolidation of soil: Consolidation of soils, one dimensional consolidation spring analogy, Terzaghi’s theory, Laboratory consolidation test, calculation of void ratio and coefficient of volume change, Taylor’s and Casagrande’s method, determination of coefficient of consolidation.

Unit5

Unit 5

Earth pressure: plastic equilibrium in soils, active and passive states, Rankine’s theory of earth pressure, active and passive earth pressure for cohesive soils, simple numerical exercises. Stability of slopes: introduction to stability analysis of infinite and finite slopes friction circle method, Taylor’s stability number.

Course Outcomes (COs)5 outcomes

After completion of the course student will be able to:

  1. CO1Familiar with basic information of the soil and soil properties.K1&K2
  2. CO2Understand the concept of Permeability and vertical stress below applied load.K2
  3. CO3Analyze the shear strength of the soil.K4
  4. CO4Understand the concept of compaction and consolidation.K2
  5. CO5Illustrate the earth pressure theory, and stability of slope.K2&K4

Official AKTU syllabus

This subject is on page 4, 5 of the original AKTU PDF.

Official AKTU syllabus PDF ↗