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Rock mechanics investigations at the Lucky Friday Mine (in three parts): 2. Evaluation of underhand backfill practice for rock burst control.

Authors
Whyatt-JK; Williams-TJ; Board-MP
Source
Spokane, WA: U.S. Department of the Interior, Bureau of Mines, RI 9433, 1992 Jan; :1-10
NIOSHTIC No.
10011453
Abstract
The energy release rate (err) index was used to evaluate three underhand stope backfill parameters--cement content, density, and placement gap--to determine their influence on rock bursts. This index provides a relative measure of the likelihood of rock bursting for a given rock mass. There was no indication that increasing initial fill strength through increased cement content would affect the err.
Keywords
Mining-industry; Underground-mining; Ground-control; Ground-stability; Geology; Rock-bursts; Rock-mechanics; Rock-falls
Publication Date
19920101
Document Type
Report of Investigations
Fiscal Year
1992
NTIS Accession No.
PB93-132843
NTIS Price
A03
Identifying No.
RI-9433
NIOSH Division
SRC
Source Name
Spokane, WA: : U.S. Department of the Interior, Bureau of Mines, RI 9433
State
MA; WA
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