Thursday, February 27, 2014

Mid Term syllabus Soil Mechanics (Backlog)

CVL 205: Soil Mechanics

Unit I: Introduction

Concept of soil,Definition and meaning of soil mechanics, History of soil mechanics

Scope of soil mechanics, Soil formation
Unit II: Weight And Volume Relationship Of Soil

Definition of soil mass, Components of soil mass, Phase diagram of soil mass and its

labeling, Weight and volume of soil with usual notation, Dry soil and wet soil

Void ratio, Porosity and their relations, Types of water in soil, Bulk density, saturated,

submerged and dry density, Difference between adsorbed water and absorbed water in

soil, Saturated, partly saturated and dry soil
Unit III: Classification Of Soil

Definition of Coarse and fine grained soil, Homogeneity, Consistency, Cohesiveness,

Toughness, Shear strength, Compressibility, Difference between coarse and fine grained

soil, Two methods of soil classification, Grain size classification of soil as per I.S.I and

classification of soil using plasticity chart, Sieve analysis and Stoke’s law, Sedimentation

analysis of soil, Particle size - Distribution curve on semi log scale, States of consistency and

its diagram, Consistency limits- Liquid limit, plastic limit, shrinkage limit and plasticity

index (P.I), Laboratory methods to find out these limits, Field identification tests
Unit IV: Permeability

Definition and understanding of permeability, Different types of soil and permeability,

Laminar and turbulent flow, Importance of permeability, Darcy’s Law

Coefficient of permeability and its determination in laboratory, Factors affecting

permeability, Confined and unconfined aquifer, Dupit’s Formula, Field determination of

permeability by pumping out and pumping in test, Concepts meaning of seepage, Effects of

seepage, Flow lines and flow net diagram (only understanding)