BEHAVIOR OF MICROTREMOR H/V SPECTRUM AND PHASE VELOCITY ON THE BASIN PERIPHERAL AND INVERSION FOR DETERMINING BASIN STRUCTURE

摘要：

For expanding microtremor survey techniques to make it possible to estimate the irregular subsurface structure in sedimentary basins, the behavior of the H/V spectra and the phase velocities of microtremors on the basin periphery area was investigated to the southern Osaka basin. In the terrace area with a steep basement inclination, geophysical exploration methods on the basis of one-dimensional horizontally stratified model using microtremor phase velocity might have brought undesirable results. As the reason of the experimental results, it spectra measurements in a long period range. Therefore, the highly-accurate inversion analysis using microtremor H/V spectra was proposed as a tool for the modeling of the shape of basin-bedrock interface of basin structure based on numerical experiments.

关键词： Microtremors H/V spectrum Phase velocity Irregular subsurface structure Inversion

作者: H. Uebayashi H. Kawabe K.Kamae M.Horike

作者单位: Research Reactor Institute, Kyoto University, Osaka, Japan Dept. of Architectural Engineering ,Osaka Institute of Technology, Osaka.Japan

会议类型: 国际会议

会议名称: 14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-12（万方平台首次上网日期，不代表论文的发表时间）