Accession Number : ADA302119

Title :   Acoustic Emission on Cofferdam Distress Warning System and Ancillary Acoustic Emission Monitoring; Melvin Price Locks and Dam. Phase 3.

Descriptive Note : Final rept.

Corporate Author : GROUND ENGINEERING INC ST LOUIS MO

PDF Url : ADA302119

Report Date : SEP 1995

Pagination or Media Count : 189

Abstract : A research program was conducted to develop a cofferdam distress warning system and monitor the acoustic emissions generated by the third-phase cofferdam of the Melvin Price Lock and Dam. The purpose of this study was to extend existing understanding of acoustic emission (AE) within large sheet-pile cell stractures to the design, configaration, and operation of a cofferdam Distress Warning System (DWS) capable of automatic operation for an extended period and to correlate the acoustic emissions with the forces acting on the cofferdam. (MM)

Descriptors :   *ACOUSTIC EMISSIONS, *PILE STRUCTURES, *HEAD(FLUID MECHANICS), *DAMS, *LOCKS(WATERWAYS), *HYDROSTATIC PRESSURE, *ACOUSTIC CHANNELS, *GEOPHONES, PREAMPLIFIERS, IMPACT, STRESS ANALYSIS, MONITORING, LEAKAGE(FLUID), FIELD TESTS, REPORTS, STRAIN(MECHANICS), FALSE ALARMS, SEISMIC DETECTION, SENSITIVITY, POWER SUPPLIES, CALIBRATION, RIVERS, FLOODS, RAINFALL, ELEVATION, SITE INVESTIGATIONS, MISSISSIPPI RIVER, FRICTION, COLLISIONS, LIGHT EMITTING DIODES, BARGES, WARNING SYSTEMS, MULTICHANNEL, CHANNEL SELECTORS.

Subject Categories : Hydrology, Limnology and Potamology
      Civil Engineering
      Acoustics
      Fluid Mechanics
      Seismology

Distribution Statement : APPROVED FOR PUBLIC RELEASE