Introduction, applications of soil mechanics in civil engineering. The nature of soil, types of soil, density, water content, Atterberg limits, subsurface soil investigation. Stresses and strains in soil elements, description of the stress state at a point with the Mohr's circle, total and effective stresses, the "effective stress principle", geostatic stresses and stress changes due to externally applied loads (under plane strain and axisymmetric conditions). Phenomenological and microscopic description of soil deformation mechanisms. The triple role of the fluid phase. Stress-strain relationships under different loading conditions: one-dimensional compression, cylindrical (tri-axial) compression, simple shear, torsion. Shear strength of a soil element, Mohr-Coulomb failure criterion. Undrained loading: excess pore pressure, stress-strain relations under various loading conditions, undrained shear strength of soils. Laboratory: Demonstration of common soil mechanics tests used to determine physical and mechanical properties.
|1||Introduction - Physical characteristics of soils||2x4=8|
|2||Stresses in the ground - Geostatic stresses - Soil deformation||1x4=4|
|3||Effective stress principle - Stress -strain relationships - Linear elasticity||2x4=8|
|4||One-dimensional deformation (oedometer test)||2x4=8|
|5||Transmission of stresses in the ground||1x4=4|
|6||Shear strength of soils - Measurement of shear strength parameters||3x4=16|
|7||Soil behaviour under undrained conditions||2x4=8|
Knowledge of basic principles of Soil Mechanics and applications in simple problems of settlement and bearing capacity.
|Teaching methods||Lectures in class. Solution of simple examples and problems in class and home assignments. Discussion of case studies in class.|
|Teaching media||Use of blackboard and powerpoint slides.|
|Computer and software use||Students solve in class (with the assistance of tutors) simple examples using mainly EXCEL.|
|Problems - Applications||Yes|
|Assignments (projects, reports)||Solution of several home problem sets. Attendance of one soil mechanics lab.|