@ ŒfÚŽGŽi˜ajF “ú–{’nkHŠwƒVƒ“ƒ|ƒWƒEƒ€u‰‰W VolF 6Šª ”NF 1982”N •ÅF 241-248•Å ’˜ŽÒi˜ajF - ƒ^ƒCƒgƒ‹i˜ajF - ´˜^i˜ajF
- ƒL[ƒ[ƒhi˜ajF - ŒfÚŽGŽi‰pjF PROCEEDINGS OF JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM ’˜ŽÒi‰pjF Tsuneo KATAYAMA, Nobuhiko SATO ƒ^ƒCƒgƒ‹i‰pjF GROUND STRAIN MEASUREMENTS BY A VERY DENSELY LOCATED SEISMOMETER ARRAY ´˜^i‰pjF
Observation of earthquake ground motions began in the Chiba Experiment Station of the Institute of Industrial Science, the University of Tokyo, in April, 1982, by using a very densely located, three-dimensional seismometer array. The main purpose of the measurement is to obtain basic information on the properties of seismic strains near the surface of the ground. The system presently in operation uses 36 three-component borehole accelerometers on and in the ground. The observational setup is discussed in some detail together with an example of recorded ground motions. The future research plan currently under way at the same site is briefly described. ƒL[ƒ[ƒhi‰pjF - ‹LŽ–‹æ•ªF - ‹æ•ª @@@ˆÏˆõ‰ï˜_•¶W