The SRD soil input is defined in order to calculate soil resistance to driving and self penetration of a pile. It is defined in a series of layers in the SRD Soil input table as shown below. The soil properties which require definition depend upon the SRD method specified for a particular layer. It is possible to specify properties which are not used for the current SRD method.
An example of the SRD soil input table.¶
It is only possible to use one SRD main method and this is selected from the options in the combo box below the main soil input table. For example, it is not possible to use the ALM sand method with the STEVENS clay method.
Once the main method has been selected it is necessary to select sub methods from the main soil table. These sub methods are outlined further in the separate main method sections.
Selection of the Main SRD method.¶
It is always necessary to specify the bottom depth of a layer, a soil effective unit weight and method. The top depth is filled in automatically and the top most layer must always have a top depth of 0m and this is filled in automatically. Once the SRD sub method has been selected various cells will then be highlighted in yellow and it is necessary to fill these in.
Note that where cells are highlighted in green then they contain optional/alternative input, reference to that input can be found in the section of the particular method for more information. In addition some parameters below the main soil input table may also be highlighted and these parameters will also be used in the analysis. Default values are typically provided (such as \(K\) for the Stevens - sand method) and are highlighted to bring them to the user’s attention. More information on these parameters can also be found in the relevant method sections.