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Terms: J Whyatt

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 27

Time-dependent rock mass motion at the Homestake Mine, Lead, SD.

Authors

Brady-T; Johnson-JC; Pariseau-B; Stahl-M; Whyatt-J

Source

2000 SME Annual Meeting, Salt Lake City, Utah, February 28 - March 1, 2000. Littleton, CO: Society for Mining, Metallurgy, and Exploration, Inc., Preprint 00-40, 2000 Feb; :1-7

Link

http://www.onemine.org/search/summary.cfm/TimeDependent-Rock-Mass-Motion-At-The-Homestake-Mine-Lead-SD?d=9115CEDE9061DED0D6A27E6768EB37D30283D3424434D2EB1F43C8E4065A304437758&fullText=Preprint%2000%2 

NIOSHTIC No.

20020898 

Abstract

An elastic-viscoplastic material model allows for time-dependent rock mass motion in proportion to excess stress above the elastic limit. The model produces rounded stair-step curves of displacement versus time that are similar to those obtained from recent borehole extensometer measurements made in the central portion of the Ross shaft pillar at the Homestake mine. The work in progress, including two- and three-dimensional finite element analyses using the UTAH2/3 codes, indicates that the model is a step towards more realistic safety and stability analysis, but that inclusion of rock mass damage may be desirable.

Keywords

Mining-industry; Models; Underground-mining; Geology

Publication Date

20000226

Document Type

Conference/Symposia Proceedings

Fiscal Year

2000

NTIS Accession No.

NTIS Price

NIOSH Division

SRL

Source Name

2000 SME Annual Meeting, Salt Lake City, Utah, February 28 - March 1, 2000

State

CO; UT; WA; SD