Vulcan’s Most Famous Sheet Piling/Extractor Photo

The photo above, dating from 1949, shows a worker tightening the bolts on the connecting links of a Vulcan extractor to the top of a prepared sheet piling in preparation to impact the sheeting upwards and take it out.  This photo was used for many years in Vulcan literature, including Vulcan Bulletin 71B.  (Note: don't … Continue reading Vulcan’s Most Famous Sheet Piling/Extractor Photo

Pile Buck Ads 3: Nilens Diesel Hammer Driving Sheet Piles — vulcanhammer.net

The third in our series of vulcanhammer.net ads for Pile Buck include this one, showing a Nilens diesel hammer driving sheet piling using a “spud” or “rail” type leader in the back. Nilens was one of Vulcan’s more interesting adventures in pile driving equipment. The method used is a typically European practice that has found […] … Continue reading Pile Buck Ads 3: Nilens Diesel Hammer Driving Sheet Piles — vulcanhammer.net

Anchored Sheet Pile Wall Analysis Using Fixed End Method Without Estimation of Point of Contraflexure

The monograph Anchored Sheet Pile Wall Analysis Using Fixed End Method Without Estimation of Point of Contraflexure, which appeared on this site very early in its existence (October 2007) has been very popular.  The online routine described in the report, which you can use, is found here.  The abstract for the paper is found here: The … Continue reading Anchored Sheet Pile Wall Analysis Using Fixed End Method Without Estimation of Point of Contraflexure

Analyzing Sheet Pile Walls with SPW 2006: Part III, Anchored Walls and Some General Comments

In the last post we looked at the SPW 2006 program analyze cantilever walls.  In this post we will look at anchored walls, which are commonly seen with permanent works.  The program, along with the example problem at hand, is here.  Some instructions on the basic working of the program is here. The problem we'll … Continue reading Analyzing Sheet Pile Walls with SPW 2006: Part III, Anchored Walls and Some General Comments

Analyzing Sheet Pile Walls with SPW 2006: Part II, Cantilever Walls

In our last post, we introduced the SPW 2006 sheet piling software, intended for educational purposes.  The software can be downloaded here.  In this installment we'll look at its application to cantilever walls, i.e., those walls with no additional support other than the soil itself.  These are used in temporary works.  The file for this … Continue reading Analyzing Sheet Pile Walls with SPW 2006: Part II, Cantilever Walls

Analyzing Sheet Pile Walls with SPW 2006: Part I, Introduction

The design of sheet pile walls--and specifically analyzing them from the standpoint of sliding, overturning, and excessive bending stresses--is one of the more challenging aspects of geotechnical design.  That's because sheet piling are totally dependent upon balancing the lateral earth pressures on both sides of the wall while at the same time insuring their structural … Continue reading Analyzing Sheet Pile Walls with SPW 2006: Part I, Introduction

Pulling Adapters for Vulcan Extractors

Vulcan pile extractors were largely designed to extract sheet piling.  The standard connection had two (2) or three (3) holes that needed to be burned into the sheeting.  While this provided a very durable connection, it was time consuming and is not really applicable to piling such as wood piling. Above is a diagram, taken … Continue reading Pulling Adapters for Vulcan Extractors

Vulcan High-Frequency Vibratory Hammers

The mid-1980's were lean years at Vulcan. The offshore market was still down, the aftermath of the collapse of oil prices earlier in the decade. Vulcan's own diesel program had to be stopped, plagued by design and manufacturing problems and an overvalued US Dollar. The vibratory hammer program was going reasonably well but the market … Continue reading Vulcan High-Frequency Vibratory Hammers

Installation and Extraction of Metal Sheet Piling

Editors note: from a practical, equipment standpoint, this is one of the most interesting sections of the book. It describes the first use of vibratory hammers on an actual project, and an interesting description of driving sheet piles and problems that can arise during that installation. The vibratory method of installation and extracting piles began … Continue reading Installation and Extraction of Metal Sheet Piling

Vulcan Pile Extractors, and the Wood Pile Puller

The Vulcan Pile Extractor was the last major design by James N. Warrington (U.S. Patent 1,736,104) to enter production, which it did in 1928. The extractor uses a simple, valveless design where the ram is thrown upward by the incoming steam or air. It strikes an anvil located in the top of the machine. The … Continue reading Vulcan Pile Extractors, and the Wood Pile Puller