March/April 2022 - 51

DFI Journal: Volume 16, Issue 1
The next issue of the DFI Journal - Volume 16, Issue 1 - is
expected to be available this spring. The issue includes the
following papers:
* " Fibre-Reinforced Grout for Micropile Construction, " by
Maged Abdlrahem. This study investigates the use of four
types of fibers in grout mixture with different dosages to
enhance the strength of grout used for micropile
construction.
* " Modified Standard Penetration Test for Drilled Shaft
Design in Weak Fine-Grained Rocks, " by Tim Stark, et al.
The paper discusses a new procedure termed the
Modified SPT (MSPT), which uses the penetration rate
(inches per blow), not the sum of blow counts for the last
30 cm (12 in) of penetration, to estimate UCS.
* " Evaluation of Negative Skin Friction on Bridge Abutment
Piles, " by M. Hesham El Naggar. The author discusses a
comprehensive field monitoring program that was
created to evaluate development of drag forces. The
results show that the maximum drag force was developed
after the complete dissipation of excess pore water
pressure and that the location of neutral plane varied
during the embankment construction stages.
* " Side Resistance of Drilled Shafts in Weak Fine-Grained
Sedimentary Rock, " by Tim Stark. The author discusses
analysis based on studies using a database of side
resistance of large diameter drilled shafts in only weak
fine-grained rocks, such as, weak shales, mudstones and
siltstones.
*
" Increase of CPT-Determined Density of Sand Due to
Installation of Press-in Piles, " by Bengt Fellenius. This
article discusses the findings of post-test CPTU soundings
used in a pile testing program in Singapore.
* " Application of the Concrete Stressmeter for Augered Castin-Place
Deep Foundation Testing, " by Jon Sinnreich. This
paper discusses the stressmeter installation procedure
which calls for pre-filling gage tube with the same mix of
concrete as the surrounding concrete, then attaching the
gage to steel reinforcement prior to casting.
Access to all journal-related publications, including older
journal papers, current papers and papers published online
ahead of print, is available at www.dfi-journal.org. Active
DFI members receive all journal publications free of charge.
Non-DFI members can purchase DFI Journal articles for $25 or
become a DFI member for only $125 per year.
DEEP FOUNDATIONS * MAR/APR 2022 * 51
http://www.dfi-journal.org http://www.dbmcontractors.com/ https://www.eijkelkamp-usa.com/

March/April 2022

Table of Contents for the Digital Edition of March/April 2022

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