Skempton’s Pore Pressure Parameters
Skempton’s pore pressure parameters are extremely useful in field problems that require the prediction of pore pressures.
Sensitivity of Soil (Soil Mechanics)
Sensitivity of Soil can range from 1 to 100, so it’s divided into 7 categories: insensitive, sensitive, medium sensitive, extra sensitive, quick, medium quick and slightly quick.
Thixotropy of Clay (Soil Mechanics)
Thixotropy of clay is the process of strength loss and gain with no alteration in volume or water content.
Shear Tests Based on Drainage Conditions
Types of shear tests based on drainage conditions are: Unconsolidated Undrained test, Consolidate Undrained Test & Consolidated Drained Test.
Unconfined Compression Test【IS 2720(Part 10):1991 PDF】
Unconfined Compression Test is a variant of an undrained unconsolidated triaxial compression test with confining cell pressure equal to atmospheric pressure.
Triaxial Shear Test for Shear Strength of Soil
The triaxial shear test or triaxial compression test is the laboratory test that better simulates field loading.
Direct Shear Test for Shear Strength of Soil
The most common method for determining the shear strength of soil is the direct shear test. The detailed procedure is enclosed in article.
Vane Shear Test [ IS 2720 (Part XXX) – 1980 ]
The vane shear test is carried out in accordance with IS: 2720 (part XXX) – 1980. It is used for determining undrained shear strength of clay.
Principal Planes (Shear Strenth of Soil)
There are three planes on which the shear stresses are zero at any point in a stressed body, which are mainly mentioned as principal planes.
Effective Stress Concept in Soil Mechanics
Karl Terzaghi was the first to propose this effective stress concept principle. In soil mechanics, this is a very critical concept.