S.M.F.E. | Maha Marathon | G2 Batch | Bteup Exam 2023-24 | Polytechnic | Civil Engineering
#gtechpoly #civilengineering #polytechnic #bteup
by Gaurav Sir and Team.
1. Introduction
1.1Importance of Soil Studies in Civil Engineering
1.2 Geological origin of soils with special reference to soil profiles in India: residual and transported soil, alluvial deposits, lake deposits, local soil found in UP, dunes and loess, glacial deposits, black cotton soils, conditions in which above deposits are formed and their engineering characteristics.
1.3 Names of organizations dealing with soil engineering work in India, soil map of India
2. Physical Properties of Soils
2.1 Constituents of soil and representation by a phase diagram
2.2 Definitions of void ratio, porosity, degree of saturation, water content, specific gravity, unit weight, bulk density/bulk unit weight, dry unit weight, saturated unit weight and submerged unit weight of soil grains and correlation between them
2.3 Simple numerical problems with the help of phase diagrams
3. Classification and Identification of Soils
3.1. Particle size, shape and their effect on engineering properties of soil, particle size classification of soils
3.2 Gradation and its influence on engineering properties
3.3 Relative density and its use in describing cohesionless soils
3.4 Behaviour of cohesive soils with change in water content, Atterberg's limit - definitions, use and practical significance including numerical problems
3.5 Field identification tests for soils.
3.6 Soil classification system as per IS 1498; basis, symbols, major divisions and sub divisions, groups, plasticity chart; procedure for classification of a given. soil
4. Flow of Water Through Soils.
4.1 Concept of permeability and its importance
4.2 Darcy's law, coefficient of permeability, seepage velocity and factors affecting permeability
4.3 Comparison of permeability of different soils as per Indian Standards
4.4 Measurement of permeability in the laboratory
4.5 Simple numerical problems
5. Effective Stress
5.1 Stresses in subsoil
5.2 Definition and meaning of total stress, effective stress and neutral stress
5.3 Principle of effective stress
5.4 Importance of effective stress in engineering problems
6. Deformation of Soils
6.1 Meaning, conditions/situations of occurrence with emphasis on practical significance of
a) Consolidation and settlement (b) Creep. (c) Plastic flow (d) Heaving (e) Lateral movement
6.2 Definition and practical significance of compression index, coefficient of consolidation, degree of consolidation.
6.3 Meaning of total settlement, uniform settlement and differential settlement; rate of settlement and their effects
6.4 Settlement due to construction operations and lowering of water table
6.5 Tolerable settlement for different structures as per IS
6.6 Simple numerical problems
7. Shear Strength of Soil
7.1 Concept and Significance of shear strength
7.2 7.3 Factors contributing to shear strength of cohesive and cohesion less soils, Coulomb's law Determination of shearing strength by direct shear test, unconfined
compression test and vane shear test. Drainage conditions of test and their significance
7.4 Stress and strain curve, peak strength and ultimate strength, their significance
7.5 Examples of shear failure in soils
7.6 Numerical problems:
8. Compaction
8.1 Definition and necessity of compaction
8.2 Laboratory compaction test (standard and modified proctor test as per IS)
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