Any questions concerning this product can be directed to the NIOSH Mining Program, Sean Warren swar[email protected] or Mike Raffaldi [email protected] About After Pakalnis (2008) Methodology Towards Ground Support. 1/2 and 1/3 Span Deadweight Wedge

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    Nov 23, 2020 · Amy Chambers, MS Amy Chambers, MS, is a research engineer working in the NIOSH Spokane Mining Research Division. She joined NIOSH in July 2015. Ms. Chambers seeks to ensure underground miners have a stable roof to Read More > Posted on March 22, 2018 by Valerie Coughanour, MA, MFA 2 Comments

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