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   REINFORCEMENT OF A QUAY IN THE PORT OF LE HAVRE WITH RIGID INCLUSIONS
   
   
   
   As part of the reinforcement work of the Joannes Couvert quay in the Port of
   Le Havre, soil reinforcement by rigid inclusions (RI) is planned to be used
   in the rear of the future quay structure, to allow the passage of heavy
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SOFTWARE PRODUCTS


PAVEMENT-DESIGN PACKAGE (PFC3D 5)

 1. Home
 2. Software
 3. Pavement-Design Package in PFC
 4. Pavement-Design Package (PFC3D 5)

PFC

 * PFC
 * Why Choose PFC ?
 * Distinct Element Method in PFC
 * PFC System Requirements
 * New in PFC 7.0
   * Contact Models
   * Rigid Blocks and Clumps
   * Particle Inlets
   * Multi-Threaded FISH
 * Features in PFC
   * User Interface in PFC
   * Construction in PFC
   * FISH Scripting in PFC
   * Python Scripting in PFC
   * Solutions in PFC
   * Analysis in PFC
   * Built-in Contact Models in PFC
     * PFC Contact Models
     * PFC Thermal Analysis
     * Rolling Resistance Linear Model in PFC
     * Burger's Model in PFC
   * Fluid Dynamics in PFC
 * Software Documentation
 * PFC Applications
 * Material-Modeling Support in PFC
   * Material-Modeling Support Webinar
   * Material-Modeling Support Publications
   * Material-modeling Support Download Files
 * Pavement-Design Package in PFC
   * Pavement-Design Package (PFC3D 5)

The pavement-design package (Potyondy, 2019) for the Particle Flow Code in 3
Dimensions (PFC3D) supports creation and triaxial testing of a synthetic
unsaturated granular material containing geogrid.* The geogrid provides lateral
restraint to the granular material as a result of interlocking and friction
between the geogrid and the granular material, and this is believed to be the
primary structural benefit of adding geogrid to the aggregate base layer of a
pavement structure. The package can be used to study and quantify the effect of
microstructural properties on macroscopic response, which includes the
stress-strain curves produced during triaxial tests. The microstructural
properties of the granular material include: grain size distribution of
spherical or clumped grains, grain material type, moisture content and initial
specimen porosity. The microstructural properties of the geogrid include:
geometry, structural stiffness and grid-grain interface behavior. The package is
being used to improve pavement-design methodology in Minnesota by estimating
geogrid gain factors (defined as the ratio of resilient modulus of the aggregate
base with geogrid to resilient modulus of the aggregate base without geogrid)
for typical geogrid-reinforced aggregate roadway configurations in which the
grain-size distribution, initial specimen porosity, moisture content and
confining stress are varied (Potyondy et al., 2016; Siekmeier et al., 2016;
Siekmeier and Casanova, 2016). The package could be extended to investigate the
behavior of other aggregate-geogrid systems such as a geogrid pull-out or
wheel-load test.

* [The pavement-design package is provided in the form of a consistent set of
FISH functions that operate within PFC3D version 5.0. FISH is a programming
language embedded within PFC3D. The PFC3D code can be obtained HERE, and the
pavement-design package is provided below.



REFERENCES

Potyondy, D. (2019) "Pavement-Design Package for PFC3D [pdPkg15]," Itasca
Consulting Group, Inc., Technical Memorandum ICG16-8528-15TM (April 1, 2019),
Minneapolis, Minnesota. DOWNLOAD LINK

The additional references cited above are defined in the references section of
the pavement-design package memo, and the documents themselves are provided in
the pdPkgN/Documentation directory.

FILES:

pdPkg15 (ZIP, 209 MB)
PavementDesignPkg[pdPkg15].pdf (24 MB)


pdPkg Release fistPkg Release PFC3D RELEASE Date / Description 15 26 5.00.39

04/08/19

Complete final pdPkg for PFC3D version 5. This package will be ported to operate
with PFC3D version 6. Add magazine article
(Siekmeier&Bittmann(2019)-MN_UseOfGrid.pdf) to Documentation directory. This
article describes the work that has been recognized by the University of
Minnesota Center for Transportation Studies 2018 Research Partnership Award to
Geogrid Reinforced Aggregate Base Pavement Design.

Add report (Siekmeier(2018)-GeogridAggBase.pdf) to Documentation directory. This
report utilizes the pavement-design package to provide a performance
specification consisting of DCP and LWD target values for geogrid reinforced
aggregate base.

14 25 5.00.35

6/22/2018

Provide report (PFC_PavementDesign-Phase2.pdf) and associated documents in
Documentation directory. This report summarizes the work for the MnDOT project
"Geogrid Specification for Aggregate Base Reinforcement." The pdPkg14 is the
deliverable of the project.

13 25 5.00.32

3/10/2018

The package has been provided to John Siekmeier of MnDOT as a deliverable for
the project "Geogrid Specification for Aggregate Base Reinforcement." The work
is summarized as follows, with documentation listed in square brackets after
each item --- see REFERENCES section below for abbreviations.

 1. Extend the geogrid representation to allow different geogrid types to be
    modeled. Create beam contact model, and verify that a string of spherical
    balls joined by beamed contacts provides the behavior of a structural beam
    of rectangular cross section with properties of Young's modulus and
    Poisson's ratio. Enhance geogrid representation via beamed grids, add
    ability to create triaxial beamed grids, and determine grid properties to
    match Tensar SS20 Single Rib Tensile (SRT) and Aperture Stability Modulus
    (ASM) grid tests. [pdPkg & BCM]
 2. Add Multiple Aperture Tensile (MAT) grid test. [pdPkg]
 3. Enhance hill material to include general grain shapes via clumped grains.
    [fistPkg, example of use in MV]
 4. Add typical roadway model, used to map out the modulus-porosity-grid-grain
    shape relationship. [MV]
 5. Add Dynamic Cone Penetrometer (DCP) and Light Weight Deflectometer (LWD)
    probes. [MV]
 6. Did not investigate ideas to improve material genesis. Did not investigate
    behavior during large-strain triaxial tests; however, PFC3D modeling of
    railway ballast by Mahmud (2017) suggests that matching the triaxial shear
    strength (maximum deviator stress that can be sustained by the material)
    requires polyhedral grains, because clumps are not sufficiently angular. It
    is not yet known if resilient modulus can be matched by clumps or polyhedral
    grains.

REFERENCE

Mahmud, S.M.N. (2017) "Effect of Particle Size Distribution and Packing
Characteristics on Railroad Ballast Shear Strength: A Numerical Study Using the
Discrete Element Method," M.S. Thesis, Boise State University [advisor: Deb
Mishra].

REFERENCES (in Documentation directory)

[fistPkg] Potyondy, D. (2017) “Material-Modeling Support in PFC [fistPkg25],”
Itasca Consulting Group, Inc., Technical Memorandum ICG7766-L (March 16, 2017),
Minneapolis, MN.

[pdPkg] Potyondy, D. (2018) “Pavement-Design Package for PFC3D [pdPkg13],”
Itasca Consulting Group, Inc., Technical Memorandum ICG16-8528-15TM (March 9,
2018), Minneapolis, MN.

[BCM] Potyondy, D. (2018) “Beam Contact Model [version 1],” Itasca Consulting
Group, Inc., Technical Memorandum 2-3558-01:17TM07 (March 9, 2018), Minneapolis,
MN.

[MV] Potyondy, D. (2018a) "Model-Validation Tests," Itasca Consulting Group,
Inc., Technical Memorandum 2-3558-01:17TM52 (March 9, 2018), Minneapolis, MN.

MODIFICATIONS

 1. Add memo ModelValidationTests.
 2. Add typical roadway model (see ModelValidationTests).
 3. Fix minor typoes in pdPkgMemo.
 4. Move grid tests to ExampleProjects\GridTests.
 5. Add Multiple Aperture Tensile (MAT) test to \GridTests.
 6. Rename grid-set parameters (grid-grain => grid-surface):
    * gd_ggemod => gd_gsemod
    * gd_ggkrat => gd_gskrat
    * gd_ggfric => gd_gsfric
 7. Add capability to perform resilient-modulus tests, and to perform DCP and
    LWD probes to ExampleProjects\MG-HillGrid.
 8. Provide additional Documentation items (see pdPkg-Documentation.pdf in
    Documentation directory).

12 25 5.00.30

4/10/2017

MODIFICATIONS

 1. Create PFC3D beam contact model (see Potyondy [2017a] for model description
    and verification problem). The beam contact model matches the response
    (within 3%) of a tip-loaded cantilever beam subjected to axial, flexural and
    twisting deformations. The model is provided as a DLL that must be installed
    when installing the pdPkg.
 2. Enhance grid generation to provide biaxial and triaxial beamed grids in
    addition to existing biaxial parallel-bonded grids. The biaxial beamed grid
    has been calibrated to match SRT and ASM tests on Tensar SS20 geogrid. The
    triaxial beamed grid has been calibrated to match SRT and ASM tests on
    Tensar TX160 geogrid. The grids are symmetric --- i.e., there is no
    differentiation between TD and LD directions.
 3. Demonstrate that there are two offset curves of resilient modulus versus
    porosity for grid and no-grid models, with the grid curve lying above the
    no-grid curve. The effect of the grid on material stiffness is found by
    comparing the resilient moduli for the grid and no-grid cases at the same
    material porosity. This behavior is described at the end of the realistic
    pavement design example (see Figure 41).
 4. Use updated PFC3D executable (5.00.30) and fistPkg25.
 5. Clumped grains can be generated for both no-grid and grid models. For the
    no-grid case (in file MatGen.p3dvr), replace the call to mpParams-AG.p3dat,
    with a call to mpParams-AG_clumped.p3dat. For the grid case (in file
    MatGenGrid.p3dvr), replace the call to mpParams-AG_grid.p3dat, with a call
    to mpParams-AG_grid_clumped.p3dat.

REFERENCES
Potyondy, D. (2017a) "Beam Contact Model [version 1]," Itasca Consulting Group,
Inc., Minneapolis, MN, Technical Memorandum 2-3558-01:17TM07 (April 6, 2017).

Potyondy, D. (2017b) "Pavement-Design Package for PFC3D [pdPkg12]," Itasca
Consulting Group, Inc., Minneapolis, MN, Technical Memorandum ICG16-8528-15TM
(April 6, 2017).


11 24 5.00.27

10/17/2016

MODIFICATIONS

 1. Pavement-Design Package [pdPkg10] made available to general public by
    posting to Itasca web page {www.itascacg.com/pavement-design-package} on
    Sep09_2016.
 2. Added citation of, and inclusion of, MnDOT pdPkg report
    {Siekmeier&Casanova(2016)-pdPkg.pdf}. Also add the technical summary of this
    report {MnDOT_TS(2016)-GeogridsIncrBaseStiff.pdf}.
 3. Fix bug that occurred when adding a grid to a cylindrical or spherical
    vessel. The bug caused the code to stop execution with an error message
    after generating the grains.
 4. Use updated PFC3D executable (5.00.27), and updated fistPkg (24).

10 23 5.00.24

06/23/2016

MODIFICATIONS

 1. Use updated fistPkg (23).
 2. Rename master project directories to remove the "my" designators.
 3. Complete the realistic example in the pdPkg memo.

The first column of this table lists the Pavement-Design Package revision
number; the second and third columns list the PFC 5.0 FISHTank and PFC3D 5.0
release, respectively, against which the Pavement-Design Package has been
tested; and the fourth column describes the Pavement-Design Package revision.
Note that each revision of the Pavement-Design Package is expected to operate
with a PFC 5.0 FISHTank and PFC3D 5.0 release that is current or newer than that
listed. Since newer revisions of the Pavement-Design Package may use features
available only in newer revisions of the supporting software, they may not be
compatible with older revisions of the supporting software.

Order PFC

SOFTWARE SUPPORT

 * Request Help
 * PFC 7.0 Documentation
 * Documentation
 * Software Forum
 * FAQs
 * Find Software Agent
 * Training
 * Applied Examples
 * Tutorials
 * Utility Files

PFC UPDATES

 * PFC 7.00 Update
 * Itasca Linux 7.00 Update
 * PFC 6.00 Update
 * PFC 5.00 Update

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LATEST NEWS

 * Itasca has announced the release of FLAC2D v9 Itasca has announced the
   release of FLAC2D v9, revolutionizing the way we analyze and predict...
   Read More
 * 6th Itasca Symposium on Applied Numerical Modeling The next Itasca Symposium
   will take place June 3 - 6, 2024, in Toronto, Canada....
   Read More
 * Itasca International Inc. announces the Selection of its New CEO Itasca
   International Inc. announces the Selection of its New CEO ...
   Read More

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UPCOMING EVENTS

18 Apr
Python in Itasca Software
... Read More
29 May
Getting Started with FLAC2D/FLAC3D
Objectives of the training: •Understand the FLAC2D/ FLAC3D numerical approach
and the types ofproblems it can solve•Know how to manipul... Read More
5 Jun
IMAT IMMERSIVE TRAINING
ITASCA is launching IMAT (Itasca's Mining Analysis Toolbox) our groundbreaking
software tailored exclusively for underground and open p... Read More
 * Cookie Policy
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