Lotung downhole array. 1: Evaluation of site dynamic properties

Journal Article · Sat Apr 01 04:00:00 EST 1995 · Journal of Geotechnical Engineering

DOI:https://doi.org/10.1061/(ASCE)0733-9410(1995)121:4(350)· OSTI ID:37136

Elgamal, A W; Zeghal, M ^[1]; Tang, H T ^[2]; Stepp, J C ^[3]

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1. Rensselaer Polytechnic Inst., Troy, NY (United States). Civil and Environmental Engineering Dept.
2. Electric Power Research Inst., Palo Alto, CA (United States)
3. 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, Journal Name: Journal of Geotechnical Engineering Journal Issue: 4 Vol. 121; ISSN 0733-9410; ISSN JGENDZ
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
54 ENVIRONMENTAL SCIENCES
58 GEOSCIENCES
EARTHQUAKES
MONITORING
NUCLEAR POWER PLANTS
RESPONSE FUNCTIONS
RISK ASSESSMENT
SEISMIC EFFECTS
SEISMIC S WAVES
SITE CHARACTERIZATION
SOILS
TAIWAN
WAVE PROPAGATION