Posted in Deep Foundations, Pile Driving Equipment

Concrete Pile Head Response to Impact

Our newest research item is this one, which is an expansion of the work with steel piles earlier this year. Abstract is as follows:

The application of semi-infinite pile theory to the behaviour of driven piles has been studied since Parola (1970). Most of the effort, however, has been concentrated on piles which do not require a cushion between the pile head and the pile driving accessory, such as steel piles. Concrete piles, on the other hand, are generally driven with this additional cushion. In this paper the same type of semi-infinite type of analysis is applied to this problem. Both the case of a rigid pile head and a pile head which responds without reflection from the pile are studied using both closed-form and numerical solutions. Two case histories are included which illustrate the application of the method, along with parametric studies of both pile head conditions.

You can download the paper here, or go to Researchgate to do so.

Posted in Deep Foundations

Amsterdam has been collapsing for years. Now it’s paying the price

Amsterdam’s day of reckoning shouldn’t really have come as a surprise.
The city’s children grow up with a verse: “Amsterdam, die grote stad / Die is gebouwd op palen / Als die stad eens ommeviel / Wie zou dat dan betalen?
Loosely translated: “Amsterdam, big city / It is built on piles / If the city would collapse / Who would pay for that?”
The city is now collapsing — and the Dutch are paying.

Amsterdam has been collapsing for years. Now it’s paying the price–from CNN

This is a new paper to update and expand on part of the first technical paper presented by a Vulcan employee: the paper “A Proposal for a Simplified Model for the Determination of Dynamic Loads and Stresses During Pile Driving,” originally presented at the 1987 Offshore Technology Conference. The abstract is here: Warrington (1987) was […]

via OTC 5395 Revisited: Analysis of Cushioned Pile Hammers — vulcanhammer.info

OTC 5395 Revisited: Analysis of Cushioned Pile Hammers — vulcanhammer.info

GRL Engineers, Inc. has provided reliable testing services and analyses in the deep foundations industry for over 40 years. Known for quick response-time, the engineering firm covers testing throughout the United States and offshore. This Pennsylvania Office of GRL Engineers, Inc., provides driven pile and drilled shaft testing services for bridges, highways, ports, and large…

via GRL Engineer’s Pennsylvania Office Provides Remote Testing Services to Help Meet Construction Project Timelines — Pile Buck Magazine

GRL Engineer’s Pennsylvania Office Provides Remote Testing Services to Help Meet Construction Project Timelines — Pile Buck Magazine

Fugro defeated 60 other teams from industry and academia in a contest to predict pile driving blowcount vs. depth for jacket piles installed in the North Sea. The contest ran from April to December of […] The post Fugro Wins Pile-Driving Prediction Contest With Machine-Learning appeared first on GeoPrac.net.

via Fugro Wins Pile-Driving Prediction Contest With Machine-Learning — GeoPrac.net

Fugro Wins Pile-Driving Prediction Contest With Machine-Learning — GeoPrac.net