Monographs on Vibratory and Impact-Vibration Pile Driving

Axial Response of Three Vibratory and Three Impact Driven H-Piles in Sand Jean-Louis BriaudLarry M. TuckerBriaud Engineers U.S. Army Corps of EngineersMiscellaneous Paper GL-88-28August 1988 A research program to compare the ultimate axial capacity of vibratory and impact driven H-piles in sand was conducted at a San Francisco, CA, site. The effects of time-lapse after … Continue reading Monographs on Vibratory and Impact-Vibration Pile Driving

Material on Vibratory and Impact-Vibration Equipment from the Soviet Union and Russia

Improvement of the Capacity of Vibrating Hammers for Driving Pipes Into Soils (article in English) M.G. Tseitlin, VNIIGSOsnovaniya, Fundamenty i Mekhanika Gruntov, No. 3, pp. 6-9, May-June, 1973 It is known that vibrating hammers (impact-vibration hammers) are highly effective for driving pipes. However, their wide use is prevented by their insufficient durability and high energy … Continue reading Material on Vibratory and Impact-Vibration Equipment from the Soviet Union and Russia

Articles and Monographs on Vibratory and Impact-Vibration Equipment Written by Vulcan Personnel

Development of a Parameter Selection Method for Vibratory Pile Driver Design with Hammer Suspension This paper details the mathematical modelling of vibratory pile driving systems using a linear model with the objective of obtaining a closed form solution to estimate either the power requirement of the machine, the torque requirement of the motor driving the … Continue reading Articles and Monographs on Vibratory and Impact-Vibration Equipment Written by Vulcan Personnel

Reconstructing a Soviet-Era Plastic Model to Predict Vibratory Pile Driving Performance

The latest in our series of monographs on vibratory pile drivers, this one takes us back to the beginnings of vibratory pile driving in the Soviet Union. It was prepared for the ReSEARCH Dialogues at the University of Tennessee at Chattanooga in April 2021. The vibratory driver that started it all: the Soviet BT-5, used … Continue reading Reconstructing a Soviet-Era Plastic Model to Predict Vibratory Pile Driving Performance

Hydraulic Vibratory Hammer: the Foster 4200

Background The Foster hammers are an interesting part of Vulcan's last years.  The concept was to produce a vibratory hammer under a "private label" arrangement, a novelty for the pile driving equipment industry at the time (although the "Chimag" diesel hammers were a similar concept.)  In the early 1990's Vulcan produced several vibratory hammers for … Continue reading Hydraulic Vibratory Hammer: the Foster 4200

Soviet S-834 Impact-Vibration Hammer: Calculations, Part II

The introduction to this series is here.  The first installment of the calculations is here. Calculations of Main Details (Strength Calculations) Strength calculations assume that the inertial forces during impact are 150 times those of the weight. Rotor Shaft We checked the rotor shaft strength in the optimal mode, i.e., when the impacting force direction … Continue reading Soviet S-834 Impact-Vibration Hammer: Calculations, Part II

Soviet S-834 Impact-Vibration Hammer: Calculations, Part I

The introduction to this series is here. Moscow, 1963 Head of the Vibrating Machine Department L. Petrunkin Head of Vibration Machine Construction: I. Friedman Compiler: V. Morgailo and Krakinovskii Specification The impact-vibration hammer is intended for driving heavy sheet piles up to 30 cm in diameter as well as concrete piles 25 cm square up … Continue reading Soviet S-834 Impact-Vibration Hammer: Calculations, Part I

Soviet S-834 Impact-Vibration Hammer: Overview

With this we begin a series of posts on the S-834 impact-vibration hammer, which the VNIIstroidormash institute in Moscow designed and produced in the early 1960's.  With the revived interest in Soviet and Russian technology, it's a detailed look at how Soviet equipment designers came up with an equipment configuration.  But it's also a close-up … Continue reading Soviet S-834 Impact-Vibration Hammer: Overview

Reciprocating Vibratory and Impact-Vibration Hammers

Virtually all vibratory pile drivers use rotating weights to produce the alternating force that mobilises and fluidises the soil. But it's necessary to use the weights in pairs to cancel out the horizontal forces that result. What if the force could be produced using a reciprocating weight, thus eliminating the horizontal cancellation requirement? In the … Continue reading Reciprocating Vibratory and Impact-Vibration Hammers

Vulcan Vibratory Hammers and Vibratory Technology

By World War II, Vulcan's air/steam hammer line dominated its production and revenue stream. Of all of the attempts Vulcan made to diversify is pile hammer line after that time, probably the most successful was its line of vibratory pile hammers. Vibratory pile driving equipment represented a major departure for Vulcan, but it also represents … Continue reading Vulcan Vibratory Hammers and Vibratory Technology