The “IPA Newsletter vol.1, 1” was first published on September 2016, sending out the latest information of Press-in Method. Since then, IPA Newsletter has been published quarterly (March, June, September and December) and delivered to people involved in Press-in Method like academic researchers and practical engineers. As new technologies, case studies and on-site interview are published, please look at the Newsletters.
From December 2024 issue, we have moved from the conventional PDF format to a web page format. This will make it easier to view on smartphones, and will also make it easier to translate into multiple languages.
It would be greatly appreciated if you could send articles to the IPA secretariat (tokyo@press-in.org).
Latest Issue
Editorial Remarks from the persons in charge
We are pleased to publish the September 2026 issue. The theme of the September 2026 issue, Pile Performance and Piling Mechanism, highlights the fundamental relationship between pile installation processes and soil behaviour in modern geotechnical engineering. As discussed, in From Interface to Installation Mechanics: Soil-Pile Interaction in Press-in Piles Based on Laboratory Tests, interface resistance evolves with confinement and surface characteristics during installation, providing new insight into the mechanisms governing shaft resistance in press-in piles. Complementing this perspective, the featured paper on estimating soil failure parameters from Press-in data demonstrates how installation records can be used to better understand ground conditions and improve the evaluation of soil strength parameters. Together, these contributions illustrate how ongoing research is advancing both the scientific understanding and practical application of pile behaviour.
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