Settle3D is a 3-dimensional program for the analysis of vertical consolidation and settlement under foundations, embankments and surface loads. The program combines the simplicity of one-dimensional analysis with the power and visualization capabilities of more sophisticated three-dimensional programs. The following is a listing of the major additions, changes and enhancements which have been made in the upgrade of Settle3D from version 1 to version 2. Note: for a list of changes and bug fixes since the initial release of Settle3D version 2, see the Settle3D version 2 Update History page. Multi Layer Stress Methods * Multiple Layer stress solution accounts for the effect of layer stiffness on stress distribution * Elastic properties (modulus, Poisson ratio) can be defined for each material in Soil Properties dialog * Three options to define elastic modulus (from immediate Es, from consolidation Cc or User defined) * Westergaard stress solution (added in version 2.004) Loading * Add conical load * Add pre-load * Rectangular, circular or polygonal loads can now be specified as either flexible or rigid * Rigid load can be applied as pressure or as a force and two moments Back Analysis * Compute the pre-load fill height required to obtain a specific settlement at any stage * Works for absolute settlement or relative settlement between two stages * Pre-load can be user-defined by entering height and unit weight of fill material * Time point query - estimate time required to achieve a certain consolidation settlement or degree of consolidation Hydro-Consolidation Region for Collapsible Soil * Define a hydroconsolidation region * Define hydroconsolidation properties for each soil layer Empirical Methods for Cohesionless Soils * Apply empirical settlement methods to rectangular or circular loads * Schmertmann * Peck, Hanson, Thornburn * Schultze and Sherif * D'Appolonia