JNTUK R20 3-1 Geotechnical Engineering-1 Material | Full Notes PDF Download

JNTUK R20 Geotechnical Engineering 1 Materials PDF Download

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Students taking JNTUK’s R20 Civil Branch Can Download the R20 3-1 Geotechnical Engineering 1 (GTE-1) Materials/Notes PDFs below.


  • To help the student discover the soil’s index properties and to classify them.
  • To introduce the idea of Seepage of water into soils and determine Seepage’s discharge.
  • To help students discern between consolidation and compaction of soils and to assess the extent and rate of settlement due to consolidation.
  • The student will be able to comprehend the notion of the shear strength of soils, assessment of shear properties of sands and clays, as well as the fields of their use.


Introduction The formation of soil – clay mineralogy and soil structure Adsorbed water volume Relationship – Relative Density.

Unit-1: Download Materials pdf  | Reference 2

Index properties of soils Grain size analysis Methods for Hydrometer and Sieve consistent indexes and limits – Different types of soil classifications – Unified soil classification and I.S. Soil classification.

Unit-1B Material Download PDF | Reference 2


Permeability Soil water capillary rise – one dimensioned flow of water in soils – Darcy’s LawPermeability – Factors that affect the determination by the laboratory of the coefficient of permeability. Of layers of systems.

Geostatic Stresses Absolute and neutral stress quick conditions for sand

Seepage:2-D flow and Laplace’s equation for Seepage through soils and Flow nets: Characteristics, Uses, and Benefits.

Download UNIT-2 Material PDF | Reference-2


Stress Distribution in soils: Strains caused by loads applied – Boussinesq’s and Westergaard’s theories on point loads and the areas of various shapes – Newmark’s influence chart 2:2 the distribution method for stress.

Download UNIT-3 Material PDF | Reference-2


Compaction Mechanism of Compaction influences – the factors that affect it – effects of soil compaction the control of compaction.

Consolidation Compressibility of soils, e-p, and e-log P curves The history of stress and the concept of Consolidation – Spring Analogy Terzaghi’s theory on one-dimensional consolidation – Time rate of consolidation as well as the degree of consolidation. – Determination of the coefficient for consolidation (cv) over consolidated and typically solid clays.

Download UNIT-4 Material PDF | Reference-2


Shear Strength in Soils is a fundamental mechanism for shear strength. Mohr-Coulomb Theories of Failure Stress-Strain behavior of Sands Critical Void Ratio, Stress-Strain behavior of clays – determination of Shear StrengthDifferent drainage conditions.

Unit-5 Materials PDF Download |  Reference 2



  1. Gopal Ranjan and A.S.R.Rao, “Basic and Applied Soil Mechanics,” New Age International Publishers.
  2. V.N.S.Murthy, “Soil Mechanics and Foundation Engineering,” CBS publishers
  3. M.Palani Kumar, “Soil Mechanics,” PHI Learning


  1. D.W. Taylor, “Fundamentals of Soil mechanics,” Wiley.
  2. Holtz and Kovacs, “An introduction to Geotechnical Engineering” Prentice Hall
  3. Donald P. Coduto, Man-chu Ronald Young, and William A. Kitch,


  • The student should be aware of the definitions of the various soil mechanics parameters and determine their inter-relationships.
  • The student needs to understand the techniques for determining the various soil index properties and be able to classify the soils.
  • The student needs to understand the importance of soil’s various engineering properties, like compaction, permeability, and shear strength. They should be able to determine their importance in the lab.
  • The student must be competent to apply these principles in daily civil engineering practices.

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