英文摘要 |
More than 650 seismograph stations all over Taiwan have been installed by the Central Weather Bureau(CWB) to record the ground motion data. In order to obtain the geological conditions and soil profiles of these strong motion stations, a site investigation project was established by the National Center for Research on Earthquake Engineering(NCREE) and CWB in 2000. The site investigation mainly consists of three parts: the basic description of a site, the on-site boring, and the Suspension P-S Logger Technique which is used to determine the shear wave velocities of the stratum at various depths. The Suspension P-S Logger Technique, using a single down-hole probe with one source and two receivers, allows continuous measurements of wave velocities with high resolution. With reference to Kyoshin Net in Japan and ROSRINE in USA, a preliminary engineering geological database for 229 seismograph stations has been constructed on a web page for convenient accession. |