CivilFEM Online Help

~TERDEF

 

~TERDEF, UETH, Lab, VAL1, ...

Layered terrain definition and properties

PREP7: GEOTECHNICAL MODULE: Terrains

UETH

User’s earth number.

Lab

 This label may take two values:

NEW	New soil definition.
LAYER	Definition of a particular layer.

VAL1, …

Fields which depend on the option introduced in Lab.

 

~TERDEF, UETH, NEW, NLAYER, EAKCN, EADir, SURFLV, BETA, Q, WKEY, WH, NAME

 

Lab=NEW

Geometric initialization and definition. The remaining of the available fields, after the introduction of NEW into the Lab field is the following:

UETH	User’s earth number.
NLAYER	Layer number (max 20).
EAKCN	Reference number of the coordinate system that defines the terrain.
EADir	Identifying label of the axis height of the terrain at the coordinate system introduced in EAKCN: X Height according to X axis. Y Height according to Y axis (default option). Z Height according to Z axis.
SURFLV	Top earth height.
BETA	Slope earth angle in sexagesimal degrees.
Q	Uniform overload over the terrain per slope length in user’s units [FL-2].
WKEY	Identifying code of the water table influence: 0 Do not consider the water table influence (by default). 1 Take into account the water table influence.
WH	Water table height (only if WKEY=1).
NAME	Terrain’s name.

 

~TERDEF, UETH, LAYER, ILAYER, MAT, THK, HBM, KSEL, DELTA

 

Lab=LAYER

The definition of the geotechnical properties for a particular layer is executed by indicating the CivilFEM’s material number for a soil or a rock, as well as the properties of this layer. The remaining available fields, after the introduction of LAYER into the field Lab is the following:

UETH	User’s earth number.
ILAYER	Number of the layer to be defined.
MAT Â	Associated material number (soil or rock material by Civil FEM)
THK Â	Layer thickness.
HBMÂ	Horizontal ballast module. > 0 User defined value. = 0 Boussinesq. = -1 Chadeysson.
KSEL  Â	Theoretical method applied to earth pressure calculation: DB According to database (By default Rankine theory). CLMB Coulomb.
DELTA	Friction angle of terrain-wall surface.

 

Notes

- This command is used not only to define the properties of a new terrain, but also to define geotechnical properties that make up the terrain.

Menu Paths

Main Menu > CIVIL Preprocessor > Geotech. Mod. > Terrains > Definition

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