If you are performing a Combination
Analysis with Swedge,
the Joint orientations
can be imported from a Dips .DIP
or .DWP file. This allows you to quickly import all joint orientations
from a Dips file into Swedge.
NOTE: Dips
is a program for the graphical and statistical analysis of orientation
data using stereonets, available from Rocscience - click
here for more information.
You may import a single set
of joint data or two sets.
If a single set of joint data is defined, then
it is assumed that all joints have the same strength properties. All possible
combinations of two joints within the single joint set will be analyzed.
If two sets of joint data are defined, then you
may define different strength properties for each set. All possible combinations
of two joints, using one joint from each
set, will be analyzed.
To import joint orientations from a Dips
file:
Select Input
Data and select the Joints
tab.
If you will be defining two joint sets, then select
the Use Two Joint Sets checkbox.
If you are defining a single joint set then do not select this checkbox.
Select the Import
from Dips button.
You will see an Open
file dialog. Navigate to the desired folder and open the desired Dips file.
You will see the Dips
Data Import Options dialog. Select the desired data import options
(see below for details), and select OK. The orientation data will be imported
into Swedge and will appear in
the spreadsheet area in the dialog.
Define the strength
properties for the joint set. You can choose Mohr-Coulomb, Barton-Bandis
or Power Curve models. All joints in the joint set will be assigned these
strength properties.
If you are importing two joint sets, then select
Joint Set 2 from the combo box
at the top of the dialog. Repeat steps 3 to 6 to import the joint orientations
and define the strength for Joint Set 2.
When you are finished defining the joint data,
select OK or Apply to run the Combination analysis.
Dips Data Import Options
The Dips Data ImportOptions
(see step 5 above) are described below.
Data to Import
To import all planes from a Dips
.DIP file select the Individual Planes
from Dips File option.
NOTE: if your .DIP file contains
raw Oriented Core data, see the important note below about import of .DIP
files.
To import planes from a Dips
.DWP file select the Planes File (dwp)
Orientations option. NOTE: a Dips
.DWP file is an auxiliary data file generated by the Dips
program. It is used to store mean planes and other data, from the analysis
of a Dips (.DIP) file.
To simultaneously import planes from a .DIP file
and the corresponding .DWP file, select the Both
option.
NOTE: if a .DWP file does not exist, then only the first option will
be enabled (i.e. only the .DIP import option will be available).
Weighted or Unweighted Values
The Weighted or Unweighted
options will ONLY be available if you are importing a .DWP file (see above).
The weighting refers to the Terzaghi weighting which can be used to account
for bias correction in joint orientation measurements (see the Dips
documentation for information about bias correction weighting).
If the Weighted option is selected, then only
the Weighted mean orientations will be imported from a .DWP file.
If the Unweighted option is selected, then only
the Unweighted mean orientations will be imported from a .DWP file.
If you are only importing a .DIP file, the Weighted / Unweighted options
are not applicable and will NOT be available.
Replace or Append
If the Replace option is selected,
then any existing data in the spreadsheet (e.g. the default data) will
be automatically deleted before the Dips
data is imported.
If the Append option is selected,
then any existing data in the spreadsheet will be preserved, and the new
data will be appended after the last existing row of data in the spreadsheet.
Import of .DIP Files
Most .DIP files can be imported directly into Swedge.
However, there is an important exception:
If your Dips
.DIP file contains raw (unprocessed) Oriented Core (Borehole) data, then
the .DIP file CANNOT be imported directly into Swedge.
However, in all cases, it is possible to import
a .DIP file, if you simply use the Save
Processed File option in Dips,
to save the .DIP file in a processed format. Swedge
will then be able to read the processed file without any problem.
In general, if you are having a problem importing
a .DIP file into Swedge, try
using the Save Processed File option in Dips
to save the .DIP file in a processed format.
For information about the Save Processed
File option in Dips, see
the Dips
documentation.
and select the Joints
tab.