Bibliographic Citation
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Title | Rock mechanics investigations at the Lucky Friday Mine. Part 1. Instrumentation of an experimental underhand longwall stope. Report of Investigations/1992 |
Creator/Author | Williams, T.J. ; Wyatt, J.K. ; Poad, M.E. |
Publication Date | 1992 Jan 01 |
OSTI Identifier | OSTI ID: 6878661 |
Report Number(s) | PB-93-132835/XAB;BUMINES-RI--9432 |
Resource Type | Technical Report |
Resource Relation | See also Part 2, PB--93-132843 |
Research Org | Bureau of Mines, Spokane, WA (United States). Spokane Research Center |
Subject | 012031 -- Coal, Lignite, & Peat-- Underground Mining-- Strata Mechanics & Control-- (1987-); COAL MINING-- ROCK MECHANICS; BENCH-SCALE EXPERIMENTS;CAVING MINING;DESIGN;EVALUATION;INFORMATION;INSTALLATION;INVESTIGATIONS;LEADING ABSTRACT;MATHEMATICAL MODELS;MINES;MONITORING;PERFORMANCE TESTING;STABILITY |
Related Subject | ABSTRACTS;ADMINISTRATIVE PROCEDURES;DOCUMENT TYPES;MECHANICS;MINING;TESTING;UNDERGROUND FACILITIES;UNDERGROUND MINING |
Description/Abstract | Researchers at the U.S.^Bureau of Mines monitored rock mass response to mining of an experimental underhand longwall stope in Hecla Mining Co.`s Lucky Friday Mine, Mullan, ID.^The stope design, the Lucky Friday underhand longwall (LFUL), was proposed as a means of controlling rock bursting while, at the same time, allowing increased mechanization of mining operations.^Instruments were specifically manufactured to monitor three geomechanical factors (backfill performance, ramp stability, and rock mass response) that directly affect the success of the stope design.^Despite considerable difficulties with instrument installation and survival in the harsh mine environment, especially within the stope fill, sufficient information was collected to suggest that the LFUL method was successful in achieving project goals.^The conclusion, along with favorable economic and operational evidence, led the mine to adopt the method throughout the mine. |
Country of Publication | United States |
Language | English |
Format | Pages: (32 p) |
Availability | NTIS |
System Entry Date | 2001 May 13 |
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