Steady State Groundwater
Three-dimension finite element groundwater seepage analysis can be carried out with RS3. The seepage analysis can be used in conjunction with stress analysis (e.g. to calculate pore pressures for effective stress analysis). It can also be used as a standalone groundwater option, independently of the stress analysis in RS3 (i.e. you can run a seepage analysis without necessarily computing a stress analysis).
The steps required for steady state groundwater seepage analysis are summarized below.
Project Settings
You must first set the Groundwater Method = Steady State in the Groundwater page of the Project Settings 
dialog.
On the Solver Options page of the Project Settings dialog, you can choose:
- Analysis Type: Couple (Biot) or Uncoupled
On the Units page of the Project Settings dialog, you can choose:
- Permeability Units
Hydraulic Material Properties
The hydraulic material properties (i.e. the permeability characteristics of your materials) are defined with the Define Hydraulic Properties 
option in the Groundwater menu.
TIP: the Hydraulics tab can also be accessed directly from the Material Properties dialog.
Groundwater Boundary Conditions
The hydraulic boundary conditions are defined with the Add Groundwater Boundary Conditions 
option in the Groundwater menu (e.g. total head, pressure head, infiltration, nodal flow, unknown, etc.).
Discharge Sections
To compute the steady-state flow volume across a surface, use the Add Discharge Section 
option in the Groundwater menu to define a discharge section.
Compute
The main Compute
option will compute both seepage and stress analysis.
To compute the seepage analysis only, without computing the stress analysis, you can use the Compute Groundwater 
option. This allows you to view and verify the seepage analysis results before proceeding to the stress analysis.
Groundwater Results
After computing a seepage analysis you can view contours of the groundwater results, including pore pressure, total head, hydraulic gradient, velocity, etc. If the discharge sections were defined, you can view the volumetric flow rates across any surface. Other results such as flow vectors can be displayed.