Geotechnical Engineering

Soils deposited in layers( from top to bottom) are designated as organic layer, litter layer, topsoil ,leaching layer, subsoil, substratum and bed rock representing the strength of soil in ascending order, Residual soil grains may break into smaller grains with the application of little pressure. Transported soil deposits subdivisions(aeoline, bentonite, boulder clay, china clay, expansive soil, glacial till, hardpan, loam, peat etc.) are based on transporting agency and place of deposition. So...

Rock cycle also known as geologic cycle is continuous never ending natural or geologic process. Soil is formed by mechanical and chemical weathering of igneous, sedimentary &metamorphic rocks transformed into sand, silt clay and gravel. Rock is formed by deposition of magma/mineral which is formed due to melting of rocks/soils as a result of volcanic eruption. Conversion of rock/soil type depends upon many factors such as temperature, climate ,rainfall, elevation, altitude etc

The common geotechnical field problems are problems due to soil characteristics, settlement of shallow foundations, soil liquefaction susceptibility, seepage/drainage water/excess water problem ,Each type has been discussed in detail and supported by proper images

Geotechnical Engineering utilizes the principles of Applied Mechanics &hydraulics to investigate subsurface ground condition and deformation in earth material which is used as structural material in cases embankment and earth dams. Each structure whether it is building foundation, bridge piers, tunnel pile foundation, well foundation requires the incorporation of investigations made by geotechnical engineer for the safety of structures.

Soil Unit Weights Inter Relationship and relations with other soil water volume /density parameters plays an important role in the analysis of soil condition ,as it enables to know about soils solid, &water content in terms of weights, which is the most essential requirements for the assessment of soil field conditions by geotechnical engineers.

Soil Weight Volume Relationship Plays an important role in the analysis of soil condition ,as it enables to know about voids, soils solid &water content volumetrically .Various conceptual terms such as porosity void ratio for representation of void space , in form of volume of voids, volume solids and total volume relationship study ascertains the soil strength on the basis of volume of voids.