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March 2018

Volume 70 Issue 3

FEATURED ARTICLES

Barbara J. Arnold; An interview with the 2018 SME President	Preview
Recovery of valuable elements from Chinese coal byproducts Maoming Fan, Yuemin Zhao, Zhanyuan Long, Wenxuan Liu	Preview
Mineworker fatigue: A review of what we know and future decisions Tim Bauerle, Zoë Dugdale , Gerald Poplin	Preview

TECHNICAL PAPERS

Three-dimensional slope stability analysis of block sliding slope failure at the Pikeview Quarry, El Paso County, Colorado J.-B. C. Varnier, J.A. Cremeens, D.D. Overton	Abstract
Refuge alternatives relief valve testing and design with updated test stand T.J. Lutz, P.T. Bissert, G.T. Homce, J.A. Yonkey	Abstract

TUNNELING AND UNDERGROUND CONSTRUCTION

UCA of SME News
Construction of the longest road tunnel in Mexico Hector Conceso Aragon, Miguel Banuet Rodriquez	Preview
Sequential Excavation Method with ground freezing for DC Water’s First Street Tunnel Ivan Hee, William Bracken, Harald Cordes, Stephen Njoloma	Preview
More than 350 attend George A. Fox Conference in New York William Gleason	Preview

SME NEWS

SME Foundation
Fine Grind
Personal News
Minerals Education Coalition
Student Chapters
Membership
Hardinge Award
Obituaries
Necrology
New Media

DEPARTMENTS

Politics of Mining
Industry Newswatch
New Products
Coming Events/Short Courses
Classifieds
Drift of Things