ARIAS INTENSITY ASSESSMENT OF LIQUEFACTION TEST SITES ON THE EAST-SIDE OF SAN-FRANCISCO BAY AFFECTED BY THE LOMA-PRIETA, CALIFORNIA, EARTHQUAKE OF 17 OCTOBER 1989
Re. Kayen et Jk. Mitchell, ARIAS INTENSITY ASSESSMENT OF LIQUEFACTION TEST SITES ON THE EAST-SIDE OF SAN-FRANCISCO BAY AFFECTED BY THE LOMA-PRIETA, CALIFORNIA, EARTHQUAKE OF 17 OCTOBER 1989, Natural hazards, 16(2-3), 1997, pp. 243-265
Uncompacted artificial-fill deposits on the east side of San Francisco
Bay suffered severe levels of soil liquefaction during the Loma Priet
a earthquake of 17 October 1989. Damaged areas included maritime-port
facilities, office buildings, and shoreline transportation arteries, r
anging from 65 to 85 km from the north end of the Loma Prieta rupture
zone. Typical of all these sites, which represent occurrences of lique
faction-induced damage farthest from the rupture zone, are low cone pe
netration test and Standard Penetration Test resistances in zones of c
ohesionless silty and sandy hydraulic fill, and underlying soft cohesi
ve Holocene and Pleistocene sediment that strongly amplified ground mo
tions. Postearthquake investigations at five study sites using standar
d penetration tests and cone penetration tests provide a basis for eva
luation of the Arias intensity-based methodology for assessment of liq
uefaction susceptibility.