QUAKE/W is a geotechnical finite element software product for
the dynamic analysis of earth structures subjected to earthquake
shaking, or point dynamic forces from a blast or a sudden
impact load. Using QUAKE/W, you can determine the motion
and excess pore-water pressures that arise due to shaking.
Its comprehensive formulation makes QUAKE/W well suited
to analyzing a wide range of problems.
Generalized material property functions allow you to use
any laboratory or published data. Three constitutive models
are supported: a Linear-Elastic model, an Equivalent Linear
model, and an effective stress Non-Linear model. QUAKE/W
uses the Direct Integration Method to compute the motion
and excess pore-water pressures arising from inertial forces
at user-defined time steps.
QUAKE/W can be used to analyze almost any dynamic earthquake
problem you will encounter in your geotechnical, civil,
and mining engineering projects.
Defining
a Dynamic Earthquake Model
The unique CAD-like technology in QUAKE/W allows you to generate
your finite element mesh by drawing regions on the screen.
You can then specify material properties, import earthquake
records, and apply boundary conditions and structural elements.
If you make a mistake, you can correct it with the Undo command.
Viewing the Analysis Results
Once you have solved your problem, QUAKE/W offers many tools
for viewing results. Animate the motion by viewing at the
displacements for successive steps. Look at the complete displacement,
velocity and acceleration history record at key points. Perform
a spectral analysis at these points to study the ground motion
frequency and seismic characteristics. Generate contours or
x-y plots of stress, strain, pore-water pressure, and over
35 other parameters. Show the shaded liquefaction zone. View
any stress state as a Mohr Circle with the associated space-force
diagrams. Then export the results into other applications,
such as Microsoft Excel or Word, for further analysis or to
prepare presentations.
Use
QUAKE/W results in a SLOPE/W stability analysis
Earthquake shaking of ground structures creates inertial forces
that may affect the stability of the structures. The shaking
may also generate excess pore-water pressures. Both the dynamic
stress conditions and the generated pore-water pressures can
be taken into SLOPE/W to study how an earthquake affects the
earth structure stability and deformation. SLOPE/W can perform
a Newmark-type of deformation analysis to determine the yield
acceleration and estimate the permanent deformation of the
earth structure.
Dissipate excess QUAKE/W pore-water pressures in SEEP/W
Excess pore-water pressures generated during an earthquake
can be brought into SEEP/W to study how long it will take
to dissipate them.
QUAKE/W 2007 is part of GeoStudio 2007, an integrated tool
containing GEO-SLOPE's leading suite of geotechnical modeling
software products: SLOPE/W, SEEP/W, SIGMA/W, QUAKE/W, TEMP/W,
CTRAN/W, AIR/W and VADOSE/W. Using GeoStudio means you can
run all of these products in one environment, creating one
model definition that is shared among all products.
For example, when you create your geometry and material
properties in one product, they are available immediately
in all other products. Your model is stored in one definition
file, which is based on the industry-standard XML format.
Sharing the data lets you run many analyses on the same
problem. You can use the results from one analysis in another,
or import files created by previous versions of the software.
Typical Applications
QUAKE/W
can model the dynamic behavior of almost any earth structure,
including:
Earth
embankment dams
Natural
soil and rock slopes
Loose
ground deposits
Estimation
of post-earthquake deformation
Impact
loads from dynamic blasting
Any
natural, near-horizontal ground sites with potential for
excess pore-water pressure generation during earthquake
shaking
Linear
analysis using linear-elastic soil properties.
Equivalent
Linear analysis, which varies soil properties for successive
iterations (Damping Ratio and G-Modulus vary with cyclic
strain for successive iterations).
Generalized
data point functions for specifying material properties,
including functions for overburden correction function
(Ks), shear stress correction (Ka), cyclic number, pore
pressure, damping ratio, and G modulus reduction.
Imported
earthquake records; both horizontal and vertical acceleration
vs. time records can be used.
Scale
peak acceleration and time duration of imported earthquake
records for site-specific conditions.
Boundary
condition types include X and Y displacements, forces,
pressures, and spring constants, as well as stress, fluid
pressure, and self-weight gravity loading.
Definition
of liquefaction potential using a collapse surface and
steady-state strength.
Structural
elements for soil-structure interaction; specifying both
axial and flexural stiffness can affect the dynamic response
of the system.
History
nodes show complete record of displacement, velocity and
acceleration.
Many
ways to view results, including x-y plots, contours, deformed
mesh, animation, spectral analysis, data tables, and Mohr
circles.
View
most result parameters for static conditions, dynamic
conditions, or both.
View
displacements, velocities and accelerations as relative
values (the finite element results) or as absolute values
(the results added to the earthquake record).
And
many more!
Engineering
Methodology Book
When you purchase a QUAKE/W 2007 license you also receive
a copy of the QUAKE/W Engineering Methodology book, Dynamic
Modeling with QUAKE/W 2007. This book is not a software
manual but a full-length book that discusses why and how
to model. It does not describe how to use the commands in
the software or which buttons to click - that is provided
in detail in the Online Help. Instead it is about thinking:
how to think before, during and after setting up and solving
a model. The Engineering Methodology book has chapters devoted
to:
The
GeoStudio Student Edition is a free product designed as
an aid to learning geotechnical numerical modeling. It is
an ideal teaching tool for university professors both at
the undergraduate and graduate levels.
The software contains limited versions of SLOPE/W, SEEP/W,
SIGMA/W, QUAKE/W, TEMP/W, CTRAN/W, AIR/W and VADOSE/W.
The
GeoStudio Basic Edition is a feature-limited version of
seven products: SLOPE/W, SEEP/W, SIGMA/W, QUAKE/W, TEMP/W,
CTRAN/W and AIR/W. The Basic Edition is ideal for use in
routine engineering practice for the analysis of problems
with limited geometric complexity. While primarily intended
for analyzing the stability of natural and man-made earth
slopes, you can also use GeoStudio Basic for the analysis
of confined and unconfined steady-state seepage problems,
for the analysis of linear-elastic settlement and stress
distribution problems, for the tracking of contaminants
within ground water flow and for the analysis of freeze-thaw
problems.
Pentium
III with Microsoft Windows 2000, XP, or Vista
Intel dual-core processor with 1 GB of RAM recommended
800x600 display (1024x768 or higher is recommended)
Microsoft Internet Explorer 6 or higher
.NET 1.1 (.NET 2.0 included on the CD)
| 
QUAKE/W is a geotechnical finite element software product for
the dynamic analysis of earth structures subjected to earthquake
shaking, or point dynamic forces from a blast or a sudden
impact load. Using QUAKE/W, you can determine the motion
and excess pore-water pressures that arise due to shaking.
Its comprehensive formulation makes QUAKE/W well suited
to analyzing a wide range of problems. 
Product Integration Chart
