ŒfÚŽGŽi˜ajF“ú–{’nkHŠwƒVƒ“ƒ|ƒWƒEƒ€˜_•¶W
VolF11Šª
”NF 2002”N
•ÅF 711-716•Å
’˜ŽÒi˜ajF •—ŠÔ@ŠîŽ÷C哪@‹I–¾CX@—FGC‘呺@—mŽjC•Ÿ“‡@‰pWCŽÂè@—F—˜
ƒ^ƒCƒgƒ‹i˜ajF ‰ßˆ³–§—š—ð‚ðŽó‚¯‚½»Ž¿’n”Ղ̉t󉻒ïR
´˜^i˜ajF -
ƒL[ƒ[ƒhi˜ajF ‰ßˆ³–§C‰tó‰»C‰“S—Íډ׎ÀŒ±CK0ˆ³–§C‚Ђ¸‚ݧŒäŒJ•Ô‚µŽOŽ²ŽŽŒ±
ŒfÚŽGŽi‰pjF THE EARTHQUAKE ENGINEERING SYMPOSIUM PROCEEDINGS
’˜ŽÒi‰pjF Kazama Motoki, Sento Noriaki, Mori Tomohiro, Omura Hirofumi, Fukushima Hideaki, Shinozaki Tomotoshi
ƒ^ƒCƒgƒ‹i‰pjF LIQUEFACTION RESISTANCE OF SANDY GROUND SUBJECTED TO OVER-CONSOLIDATION HISTORY
´˜^i‰pjF Pre-loading method and dewatering method are countermeasures against liquefaction expecting over-consolidation effect. This effect is studied by centrifuge model tests and strain-controlled cyclic tri-axial tests, in which the model ground and the specimen were consolidated through various consolidation histories. The following results are obtained from this study: 1) Over-consolidation effect contributing a settlement reduction is confirmed by centrifuge test. However the effect diminished as the shaking level increased, 2) K 0 -value increase as the OCR increases, but the value decreases after unloading and reloading history, and 3) Over-consolidation effect due to strengthening soil fabric diminished when the specimen is subjected to the cyclic shear strain level over two percent.
ƒL[ƒ[ƒhi‰pjF Over-consolidation, Liquefaction, Centrifuge test, K0-consolidation, Strain-controlled cyclic shear test
‹LŽ–‹æ•ªF -
‹æ•ªF ˆÏˆõ‰ï˜_•¶W