Accession Number:
ADA022390
Title:
Dynamic Analysis of Fort Peck Dam.
Descriptive Note:
Final rept.,
Corporate Author:
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS
Personal Author(s):
Report Date:
1976-03-01
Pagination or Media Count:
304.0
Abstract:
During the investigation the following conclusions were reached 1 Active faults have not been found on either the Hinsdale or the Brockton-Froid-Weldon trends 2 An earthquake of magnitude 5.5 at Tiger Butte appears possible 3 The split-spoon blow counts that were obtained at Fort Peck Dam indicate the relative density of the Shell to be substantially greater than that obtained by WES using undisturbed samples and laboratory tests 4 Cyclic tests conducted on specimens of remolded material have significantly less dynamic strength than tests conducted on tapped undisturbed specimens 5 The results of the static analysis show that a 2.5-ft displacement imposed in the shale under the upstream and downstream toes does not cause a significant change in the static stresses in the dam and 6 The Fort Peck Dam is not expected to experience 5 strain if an earthquake of magnitude 5.5 occurs at a distance of 10 miles. It is concluded that the dam is safe for earthquakes considered possible at the site.
Descriptors:
- *DAMS
- *EARTHQUAKE RESISTANT STRUCTURES
- MATHEMATICAL MODELS
- STABILITY
- STRESS ANALYSIS
- LOADS(FORCES)
- STRUCTURAL ANALYSIS
- DYNAMIC RESPONSE
- DISPLACEMENT
- VULNERABILITY
- STRAIN(MECHANICS)
- SHELLS(STRUCTURAL FORMS)
- SOIL MECHANICS
- STRENGTH(MECHANICS)
- FAULTS(GEOLOGY)
- SOILS
- STRUCTURAL RESPONSE
- MODEL TESTS
- SAFETY
- SEISMIC WAVES
- EARTHQUAKES
- FAILURE(MECHANICS)
- MONTANA
- CYCLIC TESTS
- STRUCTURAL ENGINEERING
- SHALE
- EARTH DAMS
- ENGINEERING GEOLOGY
Subject Categories:
- Geology, Geochemistry and Mineralogy
- Seismology
- Civil Engineering