1893: A Newly Built Railroad Bridge in Missouri Passes a Crucial Test — Transportation History

December 27, 1893 A pivotal test ride took place for a newly completed truss railroad bridge in eastern-central Missouri. This four-span truss bridge, crossing the Missouri River at Bellefontaine Bluffs and serving as a link between Charles County and St. Louis County in the Show-Me State, had been built for the Chicago, Burlington, and Quincy […] … Continue reading  1893: A Newly Built Railroad Bridge in Missouri Passes a Crucial Test — Transportation History

Advertisement

About that “Warrington Method” For Vibratory Pile Drivability

Every now and then something comes up that you really didn't expect. That took place with a paper published this year cited "W.J. Lu, B. Li, J.F. Hou, X.W. Xu, H.F. Zou, L.M. Zhang, "Drivability of large diameter steel cylinders during hammer-group vibratory installation for the hong kong–zhuhai–macao bridge," Engineering (2022), doi: https://doi.org/10.1016/j.eng.2021.07.028." (You can … Continue reading About that “Warrington Method” For Vibratory Pile Drivability

A Laboratory Manual For Trainees In Heat Treatment – Zuyev — Mir Books

In this post, we will see the book A Laboratory Manual For Trainees In Heat Treatment by V. M. Zuyev. About the book A lab manual with a series of experiments for determining effect of various types of processes on properties of materials. Translated from the Russian by Boris V. Kuznetsov First published 1985 Revised […] … Continue reading A Laboratory Manual For Trainees In Heat Treatment – Zuyev — Mir Books

Loading Out: A Christmas Reflection

It's that time of the year. Whether you follow a formal liturgical calendar or don't, if the holiday comes and you're celebrating it, you're getting ready for it. In the construction industry, we live from job to job, and we not only have to prepare for the job to start, but for it to finish … Continue reading Loading Out: A Christmas Reflection

Alemite and Vulcan Try to Get People to Lubricate Their Equipment

The Alemite ad above illustrates the importance of proper lubrication. Vulcan used and specified Alemite grease fittings in products such as the Hydra-Nut and others to help their customers do lubrication and other important maintenance items on their Vulcan equipment. The "outside" of the Hydra-Nut (U.S. Patent 3,938,427.) Introduced in the 1970's to directly replace … Continue reading Alemite and Vulcan Try to Get People to Lubricate Their Equipment

The Paper “Vibratory and Impact-Vibration Pile Driving Equipment” Cited

It's happened again: the paper "Vibratory and Impact-Vibration Pile Driving Equipment" has been cited by Mohammed Al-Amrani and M Ikhsan Setiawan in their paper "Prefabricated and Prestressed Bio-Concrete Piles: Case Study in North Jakarta." The abstract of their paper is here: In this research, we will talk about Prefabricated and Prestressed Concrete piles in general and … Continue reading The Paper “Vibratory and Impact-Vibration Pile Driving Equipment” Cited

Fifteen Years of vulcanhammer.info

I know I've spent a fair amount of time on site anniversaries this year. Those include the quarter century anniversaries of my two original sites: vulcanhammer.net and Positive Infinity. But I think it would be remiss if I didn't stop and say something about this one. I don't have an exact date when I uploaded … Continue reading Fifteen Years of vulcanhammer.info

The Effect of Batter on Hammer Energy

Most people involved in the pile driving business know that, when you drive piles on a batter (angle) the energy from the hammer is reduced. But how much? This post attempts to answer that question, and show how Vulcan dealt with the issue. Let's start with single-acting hammers like the Warrington-Vulcan hammers: the rated striking … Continue reading The Effect of Batter on Hammer Energy

So What is the Force of the Ram?

The whole point of impact pile driving is for a moving mass to be stopped "suddenly" and in the process generate a high peak force impulse which moves the pile into the soil. Pile dynamics people tend to emphasise the force on the pile head, while hammer manufacturers tend to emphasise the peak force of … Continue reading So What is the Force of the Ram?

There Was a Good Reason To Develop North Sea Oil and Gas

The recent (apparent) sabotage of the NordStream gas line from Russia to Germany--and the effects of the loss of Russian energy to Europe--is a reminder to some of us of some fairly recent history about Europe and energy that bears repeating. Europeans used to be a lot better about remembering history than Americans, but it … Continue reading There Was a Good Reason To Develop North Sea Oil and Gas