Soil Profile page

Used to input all the relevant Soil Profile data.

Setting

Description

Elasticity of Soil

Young's modulus for soil in the layer containing the tip (bearing) (E_s), in the selected units.

Note: The default value of 0.3 ksi may be high for some loose sands or soft clays, but is generally conservative for most soils used for drilled pier tips.

Number of Layers

Specify the number of soil layers to be added to the table.

Note: If the water table is located within a soil layer, soil layer should be split into two parts.

Generate Table

Click to generate a table with a number of rows corresponding to the No. of Layers specified.

CAUTION: If data has already been added to the table, clicking this button again will delete the current data and rebuild the table.

Depth / Cohesion / Density Unit

Units used for Soil Layer Depth, Soil Cohesion (undrained shear strength) and Soil Density in the Soil Profile table cells. All cells in a column must be entered in the same type of units.

Soil Profile Table

Column	Description
Soil Type	Select the soil type that best describes the layer (API Method) Select from Clay, Silt, Sand, Gravel, Sand-Silt and Others (FHWA Method) Select from Clay and Sand. Clay is selected in case of cohesive soil and either of Silt, Sand, Gravel, Sand-Silt is chosen for Cohesionless soil.
Density Type	(API method) Select soil density from Very Loose, Loose, Medium, Dense, Very Dense. Selection is used to determine Nq values from Table 6.4.3-1— "Design Parameters for Cohesionless Siliceous Soil"
Depth	Depth for each soil layer is measured from Ground Elevation (GE, by default 0ft) to top of the respective soil layer.
Friction Angle	Effective Friction Angle (Soil-Pile Friction Angle) for cohesionless soil layer, in degrees. It is assumed that the soil’s Angle of Internal Friction equal to the Effective Friction Angle.
Cohesion	Undrained shear strength of a cohesive soil.
Avg. Density	Average soil density for the respective soil layer. Note: If the water table is located within a soil layer, soil layer should be split into two parts with different soil densities.
N60	(FHWA Method) Input for design value for SPT (Standard Penetration Test) blow count, taken as average value within the soil layer. Unit for N60 is B/ft (Blows/ft).

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Exits the Wizard without creating a new Drilled Pier Job.

Column	Description
Soil Type	Select the soil type that best describes the layer (API Method) Select from Clay, Silt, Sand, Gravel, Sand-Silt and Others (FHWA Method) Select from Clay and Sand. Clay is selected in case of cohesive soil and either of Silt, Sand, Gravel, Sand-Silt is chosen for Cohesionless soil.
Density Type	(API method) Select soil density from Very Loose, Loose, Medium, Dense, Very Dense. Selection is used to determine Nq values from Table 6.4.3-1— "Design Parameters for Cohesionless Siliceous Soil"
Depth	Depth for each soil layer is measured from Ground Elevation (GE, by default 0ft) to top of the respective soil layer.
Friction Angle	Effective Friction Angle (Soil-Pile Friction Angle) for cohesionless soil layer, in degrees. It is assumed that the soil’s Angle of Internal Friction equal to the Effective Friction Angle.
Cohesion	Undrained shear strength of a cohesive soil.
Avg. Density	Average soil density for the respective soil layer. Note: If the water table is located within a soil layer, soil layer should be split into two parts with different soil densities.
N60	(FHWA Method) Input for design value for SPT (Standard Penetration Test) blow count, taken as average value within the soil layer. Unit for N60 is B/ft (Blows/ft).