@ ŒfÚŽGŽi˜ajF “ú–{’nkHŠwƒVƒ“ƒ|ƒWƒEƒ€u‰‰W VolF 4Šª ”NF 1975”N •ÅF 399-406•Å ’˜ŽÒi˜ajF - ƒ^ƒCƒgƒ‹i˜ajF - ´˜^i˜ajF
- ƒL[ƒ[ƒhi˜ajF - ŒfÚŽGŽi‰pjF PROCEEDINGS OF JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM ’˜ŽÒi‰pjF Kiichi TANIMOTO, Tsutomu NODA, Ryo FUDO ƒ^ƒCƒgƒ‹i‰pjF FUNDAMENTAL STUDY OF THE APPLICATION OF SEISMIC TECHNIQUES TO DETERMINATION OF SOIL PROPERTIES ´˜^i‰pjF
The mechanical properties of sandy soils are often measured with remolded samples in laboratory. However, the samples seem to have different structure based on geological and loading history, even if they have equal density and water content, from that in place. Therefore, field measurement is considered more reasonable to determine the mechanical properties. Also, anisotropy of ground, which often exists in field condition, should be taken into account in the measurement. This study is a first step to respond to the requirements mentioned above and describes (1) a fundamental laboratory study of seismic method and of shear test to examine shear parameter as an index of the mechanical properties of soils and (2) their application to field case studies carried out at some sites. From the study, some correlations among soil density, soil moisture, seismic velocity and shear parameter were obtained and some characteristics of such correlation with respect to anisotropic soils were clarified. ƒL[ƒ[ƒhi‰pjF - ‹LŽ–‹æ•ªF - ‹æ•ª @@@ˆÏˆõ‰ï˜_•¶W