Notes for Geotechnical Engineering - GTE by MD WESH KARNI

Origin of soils, formation of soils, clay mineralogy and soil structure, basic terminology and their relations, index properties of soils

Particle size distribution, use of particle size distribution curve, Particle size classification, textural classification, HRB classification, Unified classification system, Indian standard soil classification system, Field identification of soils

Types of soil water, capillary tension, capillary siphoning. Stress conditions in soil: Total stress, pore pressure and effective stress

Darcy’s law, permeability, factors affecting permeability, determination of permeability (laboratory and field methods), permeability of stratified soil deposits. Estimation of yield from wells

Seepage pressure, quick condition, laplace equation for two –dimensional flow, flow net, properties and methods of construction of flow net, application of flow net, seepage through anisotropic soil and non-homogenous soil, seepage through earth dam

Compaction mechanism, factors affecting compaction, effect of compaction on soil properties, density moisture content relationship in compaction test, standard and modified proctor compaction tests, field compaction methods, relative compaction, compaction control

Introduction, spring analogy, one dimensional consolidation, Terzaghi’s theory of one dimensional consolidation, consolidation test, determination of coefficient of consolidation

Mohr’s stress circle, theory of failure for soils, determination of shear strength (direct shear test, tri-axial compression test, unconfined compression test, van shear test), shear characteristics of cohesionless soils and cohesive soils

Introduction, mechanical stabilization, cement stabilization, lime stabilization, bituminous stabilization, chemical stabilization, thermal stabilization, electrical stabilization, stabilization by grouting, use of geo-synthetic materials, reinforced earth