The Mechanical Characteristics of St. Peter Sandstone in Clayton, IA
Abstract
St. Peter sandstone is an arenaceous sheet that covers large area in North America. The interest for St. Peter sandstone has been increasing due to the upward trend for hydrofracturing and the consequent need for fracking sand. This material is possesses very unique mechanical properties. On the one hand, it is brittle as characterized by an unusually high friction angle, up to 69°, and steeply curved failure envelopes. On the other hand, it Is friable, possessing extremely low, and in most cases zero cohesion. The underground mines that are working under this condition are lacking the ground control techniques for this particular mining environment. The geotechnical properties of the St. Peter sandstone were examined using uniaxial test, triaxial test, porosity test, flexural strength test. This paper aims to investigate the effect of microstructure on strength properties, utilizing microscopic studies, index test (porosity, size distribution).
Recommended Citation
A. H. Bagherieh and M. C. Ge, "The Mechanical Characteristics of St. Peter Sandstone in Clayton, IA," 2014 SME Annual Meeting and Exhibit, SME 2014: Leadership in Uncertain Times, pp. 582 - 585, Society for Mining, Metallurgy, and Exploration (SME), Jan 2014.
Department(s)
Mining Engineering
International Standard Book Number (ISBN)
978-163266526-3
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Society for Mining, Metallurgy, and Exploration (SME), All rights reserved.
Publication Date
01 Jan 2014
