Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Stress Distribution Around Resin-grouted Bolts.

Authors
Radcliffe-DE; Stateham-RM
Source
MISSING :39 pages
Link
NIOSHTIC No.
10000910
Abstract
Ninety-seven roof bolts were instrumented with strain gages and resin-grouted in three areas of the Bear Coal Mine, Somerset, Colorado, By the Bureau of Mines. Measurements taken with these instruments indicate roof support is achieved through a combination of point suspension and resistance to vertical and horizontal stresses caused by localized shearing in the roof. The localized shearing results in bending of the bolts, yielding due to high vertical stresses, and the transfer of high loads to the bolt head or plate.
Publication Date
19800101
Document Type
IH; Report of Investigations
Fiscal Year
1980
NTIS Accession No.
NTIS Price
Identifying No.
RI 8440
NIOSH Division
DRC;
Source Name
MISSING
State
CO;
TOP