Vulcan 010 Hammer: Specifications and Information

The 010 is one of Vulcan's more popular hammers.  For many years it was the largest Warrington-Vulcan hammer in the line until the 012.  It was an upgrade from the 0R hammer, raising the ram weight from 9,300 lbs. to 10,000 lbs.  Another general arrangement of the 010 with the steam belt are shown below. … Continue reading Vulcan 010 Hammer: Specifications and Information

Driving Speed That Makes Footage Records

Above, an ad for the Warrington-Vulcan hammer, as featured in Engineering News-Record, 1926.  Note that there are two distributors listed: one in California and the venerable Woodard Wight in New Orleans, which (with its salesman Herman Hasenkampf) went on to represent Vulcan in the Gulf during the offshore years. Note also that Vulcan even at … Continue reading Driving Speed That Makes Footage Records

Vulcan #0 Hammer: Specifications and Information

First produced in 1912, the #0 hammer, although not the first Warrington-Vulcan hammer, is probably, in its own way, the most pervasive in its influence on the development of Vulcan's--and other--product line. The main Chicago general arrangement is above: others are below:   Both the design, frame and accessory configuration of the #0 hammer were … Continue reading Vulcan #0 Hammer: Specifications and Information

Vulcan 06 Hammer: Specifications and Information

The 06 hammer is basically a #1 hammer with a 6,500 lb. ram.  It uses the same leaders and driving accessories.  An 06 at the Chattanooga facility is above, general arrangements of the hammer are below.     Specifications for the Vulcan 06 are below.     In the late 1970's Vulcan made an important … Continue reading Vulcan 06 Hammer: Specifications and Information

What We Need is a Light Trailer

In 1967 Vulcan opened a fabricating facility in West Palm Beach, Florida. Across the street from our new plant was “U and Me Transfer and Storage,” (see photo above) which we hired to move a lot of our machinery. We sent one of our supervisors to Florida to help set the shop up. The shop … Continue reading What We Need is a Light Trailer

Inverse Method for Pile Dynamics Using a Polytope Method: IFCEE 2018

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This paper–which is part of the STADYN project–was presented at the IFCEE 2018 conference in Orlando, FL, 7 March 2018. The slide presentation for the paper is below.

The preprint for this paper can be found at ResearchGate.

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New Version of TAMWAVE Online Wave Equation Program Now Available

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The completely revised TAMWAVE program is now available.  The goal of this project is to produce a free, online set of routines which analyse driven piles for axial and lateral load-deflection characteristics and drivability by the wave equation. The program is not intended for commercial use but for educational purposes, to introduce students to both the wave equation and methods for estimating load-deflection characteristics of piles in both axial and lateral loading.

We have a series of posts which detail the theory behind and workings of the program:

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TAMWAVE 7: Analysis for a Cohesive Soil

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With the analysis of the concrete pile in cohesionless soils complete, we turn to an example in cohesive soils.

The analysis procedure is exactly the same.  We will first discuss the differences between the two, then consider an example.

Differences with Piles in Cohesive Soils

  • The unit weight is in put as a saturated unit weight, and the specific gravity of the soil particles is different (but not by much.)
  • Once the simulated CPT data was abandoned, the “traditional” Tomlinson formula for the unit toe resistance, namely $latex q_t = N_c c $, where $latex N_c = 9 $, was chosen.
  • The ultimate resistance along the shaft is done using the formula of Kolk and van der Velde (1996).  This was used as a beta method, for compatibility with the method used for cohesionless soils.  Unless the ratio of the cohesion to the effective stress is constant, the…

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TAMWAVE 6: Results of Wave Equation Analysis

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With the data entered for the wave equation analysis, we can now see the results.  There’s a lot of tabular data here but you need to read the notes between it to understand what the program is putting out.  If you are not familiar at all with the wave equation for piles, you need to review this as well.

General Output for Wave Equation Analysis
2018-01-06T10:13:03-05:00
Time Step, msec0.04024
Pile Weight, lbs.15,000
Pile Stiffness, lb/ft600,000
Pile Impedance, lb-sec/ft57,937.5
L/c, msec8.04688
Pile Toe Element Number102
Length of Pile Segments, ft.1
Hammer Manufacturer and SizeVULCAN O16
Hammer Rated Striking Energy, ft-lbs48750
Hammer Efficiency, percent67
Length of Hammer Cushion Stack, in.16.5
Soil Resistance to Driving (SRD) for detailed results only, kips572.7
Percent at Toe35.39
Toe Quake, in.0.220
Toe Damping, sec/ft0.07

For those familiar with the…

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