the beta version of Geo Studio 2019 build 3d is now available this
QuickStart guide provides a short overview of the features and
capabilities of our 3d modeling software
this video demonstrates how to create a three-dimensional model from an existing
2d analysis using the same project tree format and model workflow as
two-dimensional geo studio models we will set up our geometry in the new 3d
editor offering feature based geometry design the main features highlighted in
this video are extrude cut and merge we then demonstrate how to apply materials
and boundary conditions to the three-dimensional domain how to generate
the 3d finite element mesh and how to solve and view our results finally a
two-dimensional cross-section is generated from the 3d model to be used
in a slope W stability analysis
when opening Geo studio you will notice that an additional drop-down menu is
available on the start page allowing you to select the geometry dimension after
selecting a dimension the corresponding products are highlighted all products
are available for two dimensional modeling currently seep/w is the only
product available for 3d modeling however geo Studios three-dimensional
analysis capabilities will increase over time I will open the analysis Quick
Start Guide
in the define project window we can see the seepage analyses are conducted on a
two-dimensional domain however a Geo Studio project may include multiple
geometries including both two-dimensional and three-dimensional
configurations to add a 3d geometry to the project file click on the top of the
analysis tree press the Add button and select 3d geometry seepage analyses can
now be added to this geometry you can see that the project tree
navigation is the same as previous versions of Geo Studio
you will notice when clicking from the 2d geometry to the 3d geometry the Geo
Studio window looks slightly different for 3d analyses the main portion of the
Geo Studio window is a read-only preview of the 3d domain the preview window does
not provide any editing capabilities but we can zoom pen rotate and select
geometry items in order to view their properties to conduct a 3d analysis we
will follow the same project workflow as for a 2d analysis the workflow steps are
one set up the model geometry to define the materials and boundary conditions
and apply these to the domain three generate the finite element mesh
throughout the domain four solve and five view and interpret the results let
us set up a 3d geometry based on the cross-section defined in the 2d seepage
analysis to import an analysis into our 3d analysis we must launch the 3d editor
under the define menu I will then click on the drop down arrow beside the import
icon along the top toolbar and select import analysis this feature is
specifically named analysis and not geometry because importing a 2d geo
studio analysis brings the geometry materials and boundary conditions into
3d I can choose which of the two dimensional seepage analyses I wish to
import into 3d the two-dimensional cross-section
appears along the z equals 0 plane which is called the front plane I will
right-click on front plane and select normal 2 to confirm this
in addition to the front plain there are two other construction planes available
in the geometry Explorer the top plane where y equals zero and the right plane
where x equals zero these construction planes assist in drawing sketches in the
3d model space and represent local XY coordinate systems
the imported analysis is listed as a sketch item under the design history
right-click on this item and select edit to view and edit the cross-section the
imported cross-section was comprised of two regions and thus there are two
solids created in our 3d analysis these solids are listed under bodies in the
geometry Explorer when this geometry item was imported the 3d editor
automatically extruded the cross-section by one meter in the Z dimension if we
want to consider a 100 metre long section we can add a slice at a distance
of 100 meters from the front to remove the default slice at 1 meter right click
and select delete
I want to add a high permeability cylindrical drain halfway along the
embankment geometry to do so I will right-click on right plane and select
sketch this opens the sketch tools on the x equals zero plane the orthographic
view setting is typically required in sketch mode to better visualize the
sketching plane I can also modify how solids are displayed in the 3d editor
I will draw a circle with a center at x equals negative 50 and y equals 16 and a
radius of 1 meter
this circle is a 2d profile called profile 1 in the design history I can
now create a three-dimensional solid by extruding this circle
you this 3-d cylinder cuts through the
embankment because the cylindrical solid comes after the embankment solid in the
design history and therefore governs to remove the portions of the cylinder
outside of the embankment we will use the explicit boolean operations
available in the 3d editor by selecting the cut icon
after assigning the input bodies I will select the fourth option from the five
cut options available
if at some point while setting up an analysis geometry we realized the
initial profile was drawn incorrectly we can go back to this profile and modify
the sketch
when we do so this change propagates through two features below it in the
design history list in this case the extruded embankment solid changes
accordingly and the cylindrical drained cutting through the embankment also
updates similarly if we change the location of the drain on profile 1 the
cut solid updates accordingly this is one of the key benefits of feature based
modeling you can modify the geometry at any stage of construction and all
subsequent operations update accordingly we can easily combine multiple solids to
create one using the merge functionality in the 3d editor select the merge icon
and click on the solids you wish to combine
to undo this action we can right-click on the merge item appearing in the
design history list and press Delete as noted before the materials and boundary
conditions are automatically created on the three-dimensional solids when a 2d
geo studio analysis is imported the foundation material is applied to the
bottom solid as shown in the properties window
similarly the solid representing the embankment has the embankment material
applied to it to change the material associated with a solid simply use the
drop-down box in the properties window to select a different material to define
a new material we must close the 3d editor and open the define materials
dialog
you
now when we relaunch the 3d editor we can apply this new material to the solid
representing the drain
we can view the applied boundary conditions by selecting a face in the 3d
view and looking at the boundary information in the properties window
to apply a new boundary condition select a solid face line or vertex and select
the desired boundary condition from the corresponding drop down menu in the
properties window
now that the geometry materials and boundary conditions are defined we will
generate the finite element mesh throughout the domain by pressing the
generate mesh icon we could use the default mesh settings but I will change
the edge lengths to 4 meters we can also specify the dominant mesh pattern to be
tetrahedral or hexahedral after clicking ok the 3d editor automatically switches
to mesh view a status bar appears in the trade during meshing if it is taking an
excessive amount of time you can click the status bar to launch a build 3d task
manager where you can stop the meshing task and modify the element size to
switch back to the geometry view click the geometry item at the top of the
window we are ready to solve the analysis the solve method is the same as
previous versions of Geo Studio I will close the 3d editor select only the 3d
analysis in the solve manager window and press the start button to begin solving
in the results view I can view parameter contours on the domain by selecting one
of the many options from the first drop-down menu the second drop-down menu
provides a list of parameters viewed as vectors
to view results in the draw graph window we now need to specify a location from
the drop down menu unlike a 2d analysis the locations need to be defined prior
to launching the draw graph window there are currently no locations defined in
this file to do so I must go back to the define view open the 3d editor and
switch to mesh view the location icon appears at the top of the window when
selected we are prompted to enter a location name in the location editor
dialog I will add a new entity select edge under location type and click on
the edge I wish to view results alone I can add multiple locations following
this same method I will go back to results view and open the draw graph
window
now I can create graphs given the locations set in the 3d editor
I will now create a two-dimensional cross-section from the 3d seepage model
to use in a slope W stability analysis to do so I will click on the front plane
as it runs perpendicular to the length of the embankment and select the section
icon in the editor window I will modify the offset value to 50 so the created
section is in the centre of the 3d embankment model after pressing ok I
will expand the geometry sections list in the geometry Explorer I will right
click on the cross-section I just created and select generate
in the main geo studio window you will see that a new geometry feature section
one is listed in the analysis tree
if I go to define project I can now add a slope W analysis to investigate the
stability of the defined cross section this simple example demonstrates the
build 3d modeling features as well as the similarities between three
dimensional and two dimensional modeling in Geo studio
bill three-d may also be used to develop complex three-dimensional models for
example this 3d seepage analysis was created by importing a geological
cross-section from an AutoCAD file and the extrude sweep cut and merge features
were used in the 3d editor to establish a section of an open-pit this analysis
can now be used to assess seepage into the pit
thank you for watching and enjoy using geo Studio 2019 build 3d