Passionista47: Civil Insights Hub

                                      ·         Stresses induced in a soil mass due to weight of overlying soil and due to applied loads. ·     These stresses are required to design a foundation such that the shear stress on any stratum of soil below it does not exceed, after providing Factor of safety for bearing capacity of soil. ·     Further the vertical stresses transmitted to the soil layers below the foundation will lead to vertical deformation in the soil, causing foundation settlement. ·      This settlement, again should not be allowed to exceed the permissible settlement. ·     Hence, the knowledge of distribution of stresses with in a soil mass, induced by loads applied on the surface of soil, is a requisite for a foundation design.  ·      The stress induced...

Understanding how soils behave under loads is   critical in geotechnical engineering . Engineers design foundations, retaining walls, and embankments based on how soil responds to stress.  Water may influence the nature of the mineral surface chemically and consequently affect the bonding forces between adjacent soil grain. This kind of interaction between the soil solid and water is called chemical interaction.  The other kind of interaction is a physical interaction between solid and water.  Volume of the soil skeleton as a whole can change due to rearrangement of soil particles into new position mainly by  rolling and sliding  due to forces acting between the particles This physical interaction is studied when we study the  effective stress concept: given by Terzaghi.  The effective stress concept applies to a fully saturated soil and relates three key concepts to help us grasp soil behaviour:   Total Stress,  Neutral Stress ( Pore Wa...