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UNIT-I
INTRODUCTION INDex pROpeRTIes Of sOIls
Soil formation – Soil structure and clay mineralogy – Adsorbed water – Mass- volume relationship
– Relative density - Grain size analysis – Sieve and hydrometer methods – Consistency limits and
indices – Various types of soil classifications – Unified soil classification and I.S soil classification.
UNIT-II
peRmeabIlITy
Soil water – Capillary rise – One dimensioned flow of water through soils – Darcy’s law- Permeability
– Factors affecting – Laboratory determination of coefficient of permeability – Permeability of layered
systems.Geostatic stresses:Total, Neutral and effective stresses – Quick sand condition seepage:
– 2-D flow and Laplace’s equation - Seepage through soils – Flow nets: characteristics and uses.
UNIT-III
sTRess DIsTRIbUTION IN sOIls
Stresses induced by applied loads- Boussinesq’s and Westergaard’s theories for point loads and areas
of different shapes – Newmark’s influence chart – 2:1 stress distribution method.
UNIT-IV
COmpaCTION aND CONsOlIDaTION
Compaction: Mechanism of compaction – Factors affecting – Effects of compaction on soil properties
- Compaction control
Consolidation: Compressibility of soils – e-p and e-log p curves – Stress history – Concept of
consolidation - Spring analogy - Terzaghi’s theory of one-dimensional consolidation – Time rate of
consolidation and degree of consolidation – Determination of coefficient of consolidation (cv) - Over
consolidated and normally consolidated clays.
UNIT-V
sheaR sTReNGTh Of sOIls
Basic mechanism of shear strength - Mohr – Coulomb failure theories – Stress-strain behavior of
sands-Critical void ratio – Stress-strain behavior of clays – Shear strength determination-Various
drainage conditions.