Selected notable improvements from major releases are
highlighted on this page.
SHAFT 2026
Allows for the new input of
User-Defined Soil Layer
so users can enter specific values of
Unit Side Friction and Unit End Bearing
for the top and bottom of each layer. This feature is very useful for a site where an
internally-instrumented test pile of smaller diameter (to reduce test costs) provided
unit skin friction for several layers, plus unit end bearing for the layer at the tip.
Using this input, SHAFT can easily estimate the axial response (capacity and movements)
of production piles with different diameters than the test pile.
New feature to evaluate if group reduction factors would be applicable when the
modeled pile is in close spacing with others nearby. Under 'Data > Evaluate Pile
Group Effects' users can now quickly evaluate the group effects for piles on a
Rectangular,
Circular or
General plan layout. For each layout, results are quickly computed and displayed under
'Graphics > Combined Plot Single Pile Factor', where users can check the applicable
reduction factor for each pile depth (and the influence/contribution that was originated
from side resistance and end bearing).
Users can now evaluate any swelling layer of Clay by entering negative Alpha values in
the soil properties, so as to see the
effects on pile capacity and penetration.
Users can now select to
Generate a Formatted Report in Microsoft Word format. The user may select
to include in the formatted report several tables to echo print the user's model
data and also several different output tables and graphs.
Many improvements are also made to operational features and smaller technical
additions, such as:
The
Shaft Elevation is now displayed on the background
when opening existing SHAFT models.
Added new features to the 'Plot' dialog when observing any 'Graphics' results,
so users can select to
Copy data to clipboard and paste into a spreadsheet (or other software)
all the X and Y data of the selected plot for further editing.
The new 'Plot' dialog also allows to
Copy as image to clipboard so the image can be pasted into other software
to incorporate into a presentation or for further editing.
User-selected depths for printing of internally-generated t-z curves
have been increased to 100 (upgraded from 50 in previous version).
A new Single Sign On (SSO) feature is introduced for licenses with large corporations
(Enterprise Level Remote Subscription Licenses) to ease the login and licensing process
for their unlimited number of users.
Expanded the FHWA Drilled Shaft criteria for Sand
with the new GEC-10 criteria where users can optionally define the
Over Consolidation Ratio (OCR) at Top/Bottom of each layer.
Allows users to define an
Elevation measurement for the vertical axis of
resulting plots (instead of depths from grade).
Added the
Brown et al (2018) GEC-10 criteria for FHWA Clay & Shale,
where users can define the entries of undrained cohesion using
three different laboratory tests: Unconfiend compression (UC) test,
unconsolidated undrained (UU) test and consolidated isotropically
undrained triaxial compression (CIUC) test.
New and enhanced v2023 of the Technical Manual is now distributed in standard PDF file format.
All changes to any output plot/graphics (titles, legends, etc) done by
the user are now associated and saved with the SHAFT model and remain available when
re-opening the same input-data file.
Other minor changes were made throughout the program interface to improve
data input and output displays.