@ ŒfÚŽGŽi˜ajF “ú–{’nkHŠwƒVƒ“ƒ|ƒWƒEƒ€˜_•¶W VolF 9-1Šª ”NF 1994”N •ÅF 955-960•Å ’˜ŽÒi˜ajF - ƒ^ƒCƒgƒ‹i˜ajF - ´˜^i˜ajF
- ƒL[ƒ[ƒhi˜ajF - ŒfÚŽGŽi‰pjF PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM ’˜ŽÒi‰pjF Takashi AKIYOSHI, Kunihiko FUCHIDA, Huolang FANG, Toshihiro TAMAKI, Masahiko KATO ƒ^ƒCƒgƒ‹i‰pjF ANTI-LIQUEFACTION EFFECT OF IMPROVED GROUNDS BY SCP ´˜^i‰pjF
Critical and optimal parameters for anti-liquefaction design of ground improvement by sand compaction piles (SCP) are investigated. To perform this for a variety of grounds the two-dimensional finite element program NUW2 for dynamic effective stress analysis is developed based on the two-phase mixture theory of Biot and the strain space plasticity theory of soil, and used for the analysis of actual grounds and model grounds which are compacted by the SCP-execution program WAP3. The good performance of the numerical procedure used here is proved by a comparison of numerical and experimental results, and the optimal compaction to resist liquefaction is illustrated for model grounds. ƒL[ƒ[ƒhi‰pjF - ‹LŽ–‹æ•ªF - ‹æ•ª @@@ˆÏˆõ‰ï˜_•¶W