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Effects of Specimen Radius on the Stress State Near a Roof Bolt Anchor: A Finite Element Determination.

Authors
Wade-LV; Stahl-PA
Source
NTIS: PB 221 868 :24 pages
Link
NIOSHTIC No.
10000997
Abstract
This Bureau of Mines work was performed to theoretically determine the effects of specimen radius and specimen boundary conditions on the stress state in the rock near the anchor for rock specimens used to investigate expansion anchor behavior. Finite element analyses were performed on mathematical models of varying radius and boundary conditions. A review of the results of these analyses revealed a definite convergence of all stress measures considered as the specimen radius increased. There was, however, a significant variation in all stress measures as the specimen diameter increased from 8 to 12 inches.
Publication Date
19730101
Document Type
IH; Report of Investigations
Fiscal Year
1973
NTIS Accession No.
PB-221868
NTIS Price
A03
Identifying No.
RI 7748
NIOSH Division
PRC;
Source Name
NTIS: PB 221 868
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