@ ŒfÚŽGŽi˜ajF “ú–{’nkHŠwƒVƒ“ƒ|ƒWƒEƒ€˜_•¶W VolF 9-1Šª ”NF 1994”N •ÅF 961-966•Å ’˜ŽÒi˜ajF ŒÜ\—’@rˆê ƒ^ƒCƒgƒ‹i˜ajF ƒGƒlƒ‹ƒM[‚É‚æ‚é‰t󉻈À‘S—¦‚Ì•]‰¿ ´˜^i˜ajF
- ƒL[ƒ[ƒhi˜ajF - ŒfÚŽGŽi‰pjF PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM ’˜ŽÒi‰pjF Shunichi IGARASHI ƒ^ƒCƒgƒ‹i‰pjF EVALUATION OF ENERGY-BASED FACTOR OF SAFETY AGAINST LIQUEFACTION ´˜^i‰pjF
The factor of safety against liquefaction of saturated soil is defined: F¡ = ¡(¡/¡) where ¡ is the strain energy increament in the pore-water due to the plastic deformation of the skeleton and ¡ is the increament necessary to cause liquefaction. A pair of material constants, namely energy absorption ratio and dynamic internal friction angle, are introduced to express the strength of soil against liquefaction. A procedure is developed to evaluate F¡ from strong motion parameters and is verified by the case study of the Wildlife Liquefaction Array. ƒL[ƒ[ƒhi‰pjF - ‹LŽ–‹æ•ªF - ‹æ•ª @@@ˆÏˆõ‰ï˜_•¶W