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welcome back uh we are here to discuss our next method to determine the immediate settlements uh this method is mostly applicable to sands but can also be applied to place so lets start with the method its name is shematman method after the name of a scientist its a semi-empirical approach that means youll be using some of the principles of mathematics and some of the properties obtained from laboratory testing so its actually a theory plus model studies for vertical strain in sands below foundation as function of depth from the elasticity theory we are all aware that the strain in a volumetric strain in any material is given by the is also is a function of uh the pressure its elastic properties and some geometrical factor as you have previously seen in the dimension concordia method also so uh here ev is the vertical strain delta q is the net foundation contact pressure es is the modulus of elasticity of sand and iv is a strain influence factor for soil beneath foundation as i sa
