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
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
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
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
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
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
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
Although Vulcan became a "one-product" company with the success of the Warrington-Vulcan hammers, it furnished a wide variety of accessories and other products to go with its successful pile hammers. From the turn of the century until the Great Depression, Vulcan issued one catalogue to cover the entire line of steam hammers, drop hammers, accessories … Continue reading In the Catalogue: Vulcan Leaders, Rigs and Accessories, 1906-1931
Vulcan is best known for its "open type" Naysmith-ancestry hammers. Most of Vulcan's competitors (MKT, Union/Arnott, etc.) produced "closed type" hammers, where the ram was invisible to the users. But Vulcan ventured into the closed hammer type as well. The first of this type Vulcan produced was the #5, shown at right. First produced in … Continue reading Vulcan #5: The First Closed Hammer
To simplify Sheet Pile Designations for domestic manufacturers, there has been formulated a "New Standard, Designation" system. Given in the table below are the new and old designations for reference purposes. NEW STANDARD DESIGNATIONU.S. ARMY CORPS OF ENGR. DESIGNATIONU.S. STEELBETHLEHEMWEIRTON STEEL (DlV. OF NAT'L.)AREA SQUARE INCHESLB. PER LINEAR FT.PZ38238MZ38ZP38 16.7757PZ32232MZ32ZP32 16.4756PZ27227MZ27ZP27 11.9140.5PDA27DA27MP116DP2 10.5936PMA22MA22MP115AP3 10.5936PSA23SA23MP112SP4WS38.9930.7PSA28SA28MP113SP5WS410.9837.3PS28S28MP101SRAWS110.2935PS32S32MP102SP7AWS211.7640PSX35 MP103SP7B 13.0944.5 WZ27 (not comp. PZ27)1936 PWZ2211.0329.33 When ordering Helmets … Continue reading Vulcan Onshore Tip #51: Sheet Pile Designations
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