Lotung downhole array. 1: Evaluation of site dynamic properties
- Rensselaer Polytechnic Inst., Troy, NY (United States). Civil and Environmental Engineering Dept.
- Electric Power Research Inst., Palo Alto, CA (United States)
- Earthquake Hazards Solutions, Austin, TX (United States)
The Lotung large-scale seismic test (LSST) site in Taiwan was instrumented in 1985 with an array of downhole and surface accelerometers, by the Electric Power Research Institute (EPRI), Palo Alto, California, and the Taiwan Power Company (TPC), Taipei, Taiwan. A total of 18 earthquakes were recorded during the period 1985--86. Correlation and spectral analyses of the recorded downhole accelerations are performed to evaluate shear wave propagation characteristics, variation of shear wave velocity with depth, and site resonant frequencies and modal configurations. A shear-beam model, calibrated by the identified site properties, is found to represent the site dynamic response characteristics over a wide frequency range. In a companion paper, strong-motion earthquake records are utilized to investigate the Lotung site large-strain soil response characteristics.
- OSTI ID:
- 37136
- Journal Information:
- Journal of Geotechnical Engineering, Vol. 121, Issue 4; Other Information: PBD: Apr 1995
- Country of Publication:
- United States
- Language:
- English
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