Graph Line Settlement For Free

Elastic settlement calculation using displacement influence factors has the general form (Poulos and Davis, 1974):(1) ? = q B E s I where ? is the foundation settlement; q is the applied stress; B means the foundation width; Es stands for the equivalent elastic soil modulus; and I is the displacement influence factor.

Deformation parameters: Assessment of primary and secondary consolidation settlement. The primary consolidation settlement can be calculated from the coefficient of volume compressibility mv, which can further lead to the Young's modulus E? = (1 + v?)(1 ? 2v?)/[mv(1 ? v?)], with an assumed Poisson's ratio v?.

The settlement can be calculated by knowing the size of the dike, total load on the soil due to weight of the dike and the soil properties such as elastic modulus, Poisson's ratio, compression index, recompression index, secondary compression index, effective preconsolidation stress, coefficient of consolidation and ...

Total settlement refers to the overall change in vertical distance. Differential settlement involves an expected amount that the total settlement will vary between points over a horizontal distance, which can be caused by variations in the foundation soil profile and wall height over a certain distance.

The primary consolidation settlement can be calculated from the coefficient of volume compressibility mv, which can further lead to the Young's modulus E? = (1 + v?)(1 ? 2v?)/[mv(1 ? v?)], with an assumed Poisson's ratio v?.

Coefficient of consolidation. The Coefficient of consolidation at each pressures increment is calculated by using the following equations : Cv = 0.197 d2/t50 (Log fitting method) Cv = 0.848 d2/t90 (Square fitting method)

Therefore, to determine the settlements, it is necessary to know: the course of vertical stresses ?z with depth. The settlement-generating base stress ?1 = ?0 - ? ? h must be used, taking into consideration the stress reduction by the excavation unloading for the embedment depth of the foundations.