NIOSHTIC-2 Publications Search

Advanced Search   Search Help   About NIOSHTIC-2    Feedback

An investigation of the scale invariant properties of failure.

Authors
Brady BT
Source
Internat J Rock Mech Min Sci & Geomech Absts 1977; 14(3):121-126
Link
NIOSHTIC No.
10009646
Abstract
The inclusion theory of failure predicts that seismicity precursors (seismicity increase followed by seismicity decrease in the immediate vicinity of an impending failure) will precede failure. A precursor is defined as an effect produced within a physical system which indicates that the process leading to failure of the system has begun. A key prediction of the inclusion theory is that the process of failure is scale invariant, or simply, the same physical processes are operative on the small scale (laboratory), intermediate scale (mine failure), and large scale (earthquake). This Bureau of Mines paper presents experimental evidence showing that anomalous seismicity precedes failures of rock on the laboratory scale, rock bursts in mines, and earthquakes.
Keywords
Failure-analysis; Geology; Geophysics; Rock-mechanics; Ground-stability; Rock-bursts; Laboratories; Physical-properties; Mining-industry
Publication Date
19770101
Document Type
OP
Fiscal Year
1977
Identifying No.
OP 64-77
Issue of Publication
3
NIOSH Division
DRC
Source Name
International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts
State
CO
Page last reviewed: December 17, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division