Forensic Engineers and Consultants

Tag Archive: roof bolting

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

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    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…)

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