In situ impulse test: an experimental and analytical evaluation of data interpretation procedures
Special experimental field testing and analytical studies were undertaken at Fort Lawton in Seattle, Washington, to study ''close-in'' wave propagation and evaluate data interpretation procedures for a new in situ impulse test. This test was developed to determine the shear wave velocity and dynamic modulus of soils underlying potential nuclear power plant sites. The test is different from conventional geophysical testing in that the velocity variation with strain is determined for each test. In general, strains between 10/sup -1/ and 10/sup -3/ percent are achieved. The experimental field work consisted of performing special tests in a large test sand fill to obtain detailed ''close-in'' data. Six recording transducers were placed at various points on the energy source, while approximately 37 different transducers were installed within the soil fill, all within 7 feet of the energy source. Velocity measurements were then taken simultaneously under controlled test conditions to study shear wave propagation phenomenology and help evaluate data interpretation procedures. Typical test data are presented along with detailed descriptions of the results.
- Research Organization:
- Shannon and Wilson, Inc., Seattle, WA (USA); Agbabian Associates, El Segundo, CA (USA)
- OSTI ID:
- 7144476
- Report Number(s):
- PB-257154; NUREG-0028; TRN: 77-011817
- Country of Publication:
- United States
- Language:
- English
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47 OTHER INSTRUMENTATION
NUCLEAR POWER PLANTS
REACTOR SITES
SOILS
TESTING
MEASURING INSTRUMENTS
SEISMOLOGY
SHOCK WAVES
NUCLEAR FACILITIES
POWER PLANTS
THERMAL POWER PLANTS
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440300 - Miscellaneous Instruments- (-1989)