Steady flow analysis and unsteady flow analysis can be performed, and a wide range of boundary conditions are supported so that almost all 2D seepage phenomenon can be modeled.

Analysis Type	Steady flow analysis
	Unsteady flow analysis
Analysis Model	Two-dimensional vertical plane flow model
	Axisymmetric flow model
	Two-dimensional horizontal plane flow model
Boundary Conditions	Known hydraulic head(:Steady:Unsteady)
	Potential seepage face(:Steady:Unsteady)
	Rainfall(:Steady:Unsteady)
	Flux(:Steady:Unsteady)
	Fluctuating water level(:Unsteady)
	Outflow forbidden(:Unsteady)
	Point source(:Steady:Unsteady)

Anisotropy of water permeability coefficient, terrain inclination

The following 2 settings are available:

1. Analysis by the vanGenuchten model (identification value)
2. Analysis by the table of moisture characteristic curve (θ-ψ curve) and unsaturated hydraulic conductivity (θ-Kr curve)

1. Allowing terrain configuration model creation from a variety of electronic medium and drawing (AutoCAD2007, SXF, and printed drawing). Automatic mesh is also supported.
2. Common operating interface with our geotechnical series FEM products
3. Anisotropy of water permeability coefficient, terrain inclination
4. Cutoff wall available
5. Simultaneous setting of rainfall boundary and water level variation boundary
6. Automatic calculation of pressure hydraulic head node value from initial seepage surface input in the unsteady analysis
7. Saturated-unsaturated seepage FEM steady and unsteady analysis is available. As FEM analysis result, model figure, equal potential contour, equal pore pressure chart, hydrodynamic gradient figure (horizontally and vertically), and saturate rate figure export.
8. Direct input via table for unsaturated seepage property
9. Support for Japanese main parameter including "River Bank Structure Guideline"
10. Obvious output with animated time history for unstable analysis result

This is FEM analysis software but its interface is very similar to our UC-1 design software, so that the customer can manipulate as usual design software. In addition, this interface is common mesh split interface with other geotechnical series, it results in time savings in the learning the operations.

AutoCAD2007 format and SXF format CAD file can be imported, and modeling by scanning of the drawing (paper information) is available.

All input items from the model creation tab to analysis condition tab can be output with graphical figures. It can freely be customized by switching items on the printing setting window, thus you can output statements required.

▲Setting window of printing items of pre part

▲[Calculation sheet] model figure

▲[Calculation sheet] water level
variation boundary

▲[Calculation sheet] element definition

Gunma University's Solver whose quality and reliability has been highly-acclaimed is used.

Many post output functions and animations allow the access of the analysis result visually in all aspects.
This application allows the output of FEM analysis result in flow net(streamline net), and the time transition of flow net can be checked in animation.
Unsteady analysis results can be saved in AVI format as a movies file.

Post processor outputs all analysis results from model figure to numerical output with graphical figures. Like the preprocessor, output contents can freely be customized by switching items on the printing setting window. Output flexibility is well considered, so that node number, element number, and time range (during unsteady analaysis) can also be customized.

▲Setting window of print items of Post part

▲[Calculation sheet]
Contour figure - equal potential

▲[Calculation sheet]
Vector figure

▲[Calculation sheet]
Time history figure - node

▲[Calculation sheet]
Time history figure - element

1. Check of the rainfall influence against road banks
2. Influences of rainfall and spring in large basin
3. Measures of seepage surface and water pressure distribution in river levee
4. Design calculation of fill type dam body and investigation of seepage on the ground around reservoir
5. Examination of permeability in the basic process like curtain grouting
6. Design calculation of dam body of reservoir and one for disaster prevention
7. Examination of piping and boiling during excavation
8. Influences of confined groundwater
9. Effect of drainage well on pore pressure distribution in landslide region 
10. Investigation of seepage in cofferdam