GARY G. LaFRANCE, P.E.
Consulting Civil Engineer
5734 Meadowbrook Drive
Harrisburg, Pennsylvania 17112-3137, U.S.A.
E-mail: g.g.lafrance@att.net
Phone:
+1 717 657 2520
Fax:
+1 717 657 2520
PVR Version 7.2 for Windows is a major update of the popular PVR for DOS program for calculating swell potential (potential vertical rise) of foundation clays by the original TxDOT Test Method Tex-124 . Sold commercially since 1993, PVR is used by leading geotechnical consultants in the South and Southwest (U.S.A.) where the semi-arid climate, moisture variations, and the presence of foundation clays pose a concern over the performance of shallow building foundations. PVR Version 7.2 for Windows has been designed as a 32-bit application for the Windows 9x, Me, 2000, XP and NT4 operating systems with the standard Windows graphical user interface and features.
TSD16 (© Gary G. LaFrance, P.E., 2004)
TSD Version 1.6 is a new 32-bit Windows, interactive, three-dimensional (3D), slicing program for processing ground-penetrating radar (GPR) data acquired with the Ramac X3M manufactured by Malå GeoScience, Malå, Sweden. TSD stands for "Time-Series Differentials." Time series are below-ground, horizontal planes that can be referenced to the elapsed time from the initial radar pulse. Differentials are the differences over a horizontal plane between the magnitudes (as absolute values) of the GPR reflections and the average value across the plane. This procedure is similar to deducting the mean trace from a two-dimensional (2D) GPR profile. The extent of the horizontal planes is defined by two sets of closely spaced GPR profiles at right angles to each other.
TSD16 will handle up to 30 rows and 30 columns of GPR profiles; and up to 30 time-series (horizontal planes) for a maximum of 27,000 3D grid points. The main purpose of TSD16 is to interactively view the GPR data with a 3D slicer subroutine. SuperPlot3D-Lite Slicer will enable the user to see volumetric color mapping of the time-series differentials from infinite perspectives. The volumetric color map of time-series differentials can assist in identifying targets which may be otherwise overlooked by conventional, two-dimensional (2D) viewing of profiles. SuperPlot3D-Lite Raster can be called from SuperPlot3D-Lite Slicer for 2D viewing of selected horizontal or vertical slices.
SEEPCALC(tm) by Gary G. LaFrance, P.E., 2005
SEEPCALC(tm) is FREEWARE for the 32-bit Windows platform. This program, written by Gary G. LaFrance, P.E., extends and incorporates the code of SEEPAG2D authored by Professor Wesley P. James (Ref.: "Water Resources & Engineering", Ralph A. Wurbs and Wesley P. James, Prentice-Hall, Inc., © 2002). SEEPCALC(tm) is exclusively for students and academicians who use Professors Wurbs and James' textbook. SEEPCALC(tm) cannot be used or developed for commercial purposes.
SEEPCALC(tm) extends Professor James' SEEPAG2D to the 32-bit Windows platform to allow students using the Wurbs/James textbook to experience a wider range of real world applications for analyzing seepage beneath dams. In addition to computing the volume of flow for a specified width of embankment, SEEPCALC(tm) will calculate the exit gradients and Lane's creep ratio and compare these computed values to published criteria. A 2d plot of the exit gradient near the downstrem toe can be made using a built-in graphics module, SuperPlot 2D-Lite(tm), which is part of the Absoft 7.5 fortran compiler package used to create SEEPCALC(tm). A FREE copy of the SEEPCALC(tm) package will be sent to Email requests. Contact the author at . . . . . . g.g.lafrance@att.net.
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