Forensic Engineers and Consultants

Tag Archive: hazardous machine functions

  1. Case Study of an Injury Involving a Soil Mixer

    Leave a Comment
    Co-Authored with Aron Olson, P.E.

    In May, 2014, a plant farm worker was seriously injured when he fell into the hopper of an electrically powered soil mixer.  The mixer in question used a rotating steel ribbon powered by a 7-1/2 hp electric motor to mix batches of materials such as sand, mulch, wood shavings, fertilizers and other landscaping materials to create potting soil. At the top of the hopper sidewalls, within 6 inches of the ribbon, was a steel grate. (more…)

  2. A Case Study in a Coal Mine: What are a Machine Rebuilder’s Responsibilities?

    Leave a Comment
    Co-Authored with Aron Olson, P.E.

    In November of 2010, a miner was injured by a roof bolting machine (roof bolter) in an Alabama underground coal mine. The roof bolter in question had undergone a complete rebuild intended to return the machine to the original equipment manufacturer’s (OEM’s) specifications. Warren was hired to analyze both the design of the roof bolter and the actions of the rebuilder to determine if either contributed to the unfortunate coal miner’s serious injury. Background information on coal mining and roof bolters, as well as an analysis of the roof bolter and the actions of the rebuilder are included. (more…)

Type ofLoss

Not sure what you're looking for?
Browse All

Select Loss Category