Key Facts of Soil Mechanics

Key Facts of Soil Mechanics:- * The oven drying method is an accurate method of finding out water content in a sample of soil. * Pycnometer method is used for determination of water content of soils for coarse grained soils. * Plasticity is the property of a soil that permits is to be deformed rapidly, without rupture, without elastic rebound and without volume change. * physical disintegration of rocks form cohesion less soils. * Water is an agent of transportation for alluvial soils. * Sand is a cohesion less soil. * Density index for a natural soil is used to express its relative compactness. * Newton`s law is used in Hydrometer analysis. * Compact coarse sand is a non-cohesive soil. * The angle between the abscissa and tangent to the curve representing the relationship of shearing resistance to normal stress acting with the soil is called Angle of internal friction. * The ratio of settlement at any time, to the final settlement is known as a degree of consolidation * Plasticity index represents the range of water content between liquid and plastic limit * Lacturine soil is a fine grained soil transported by water and deposited at the bottom of lakes * The soil collected at the base of steep cliff because of the effect of the force of gravity on the broken rock fragments, is called Colluvial soil. * The maximum differential settlement in case of foundation on cleyey soil is restricted to 40 mm.