Abutment Earth Pressure [CSB]

The Abutment Earth Pressure workflow item is used to apply horizontal earth pressure loads on abutment walls. It supports both active earth pressure and live load surcharge loading conditions.

General

Abutment: Select the abutment on which the earth pressure will be applied.

Stage: Select the construction stage at which the earth pressure load is applied.

Load Type [Earth Pressure/Live Load Surcharge]: Specify the type of earth pressure loading. "Earth Pressure" applies a linearly varying lateral pressure based on the soil's unit weight and the active pressure coefficient. "Live Load Surcharge" applies a uniform lateral pressure over the abutment wall height.

Active Lateral Earth Pressure Coefficient (Ka): The active lateral earth pressure coefficient used to calculate the horizontal pressure from the backfill soil.

Backfill Soil Unit Weight: The unit weight of the backfill soil behind the abutment.

Heel Side Width: The width of the heel side of the abutment footing. This parameter is only applicable when the Load Type is set to "Live Load Surcharge".