Main Title |
Spill alert device for earth dam failure warning |
Author |
Koerner, Robert M. ;
Lord, Jr, A. E.
|
Other Authors |
|
CORP Author |
Drexel Univ., Philadelphia, PA.;Municipal Environmental Research Lab., Cincinnati, OH. |
Publisher |
Municipal Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, |
Year Published |
1984 |
Report Number |
EPA/600/2-84/007; EPA-R-802511 |
Stock Number |
PB84-138189 |
OCLC Number |
49039305 |
Additional Subjects |
Earth dams ;
Failure ;
Warning systems ;
Acoustic signals ;
Soil properties ;
Wave propagation ;
Monitors ;
Data acquisition
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
ELBD |
EPA 600-2-84-007 |
|
AWBERC Library/Cincinnati,OH |
02/22/2002 |
NTIS |
PB84-138189 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
xii, 118 p. : ill. ; 28 cm. |
Abstract |
A spill alert device for determining earth dam safety based on the monitoring of the acoustic emissions generated in a deforming soil mass was developed and field-tested. The acoustic emissions are related to the basic mechanisms from which soils derive their strength. Laboratory feasibility tests, conducted under widely varying conditions, have resulted in an instrument package consisting of a wave guide (an iron road projecting into the earth mass), a transducer (to convert the mechanical waves transmitted from the deforming soil into an electrical signal), an amplifier (to increase the signal level), and a counter (to quantify the signal). The resulting monitoring system has been field-tested at 19 sites and found to portray accurately the stability of the particular site in question. |
Notes |
Project officer: John E. Brugger. Grant no. R-802511. Photocopy. |