Applications of engineering seismology for site characterization
We determined the seismic model of the soil column within a residential project site in Istanbul,Turkey.Specifically,we conducted refraction seismic survey at 20 locations using a receiver spread with 48 4.5-Hz vertical geophones at 2-m intervals.We applied non-linear tomography to first-arrival times to estimate the P-wave velocity-depth profiles and performed Rayleigh-wave inversion to estimate the S-wave velocity-depth profiles down to a depth of 30 m at each of the locations.We then combined the seismic velocities with the geotechnical borehole information regarding the lithology of the soil column and determined the site-specific geotechnical earthquake engineering parameters for the site.Specifically,we computed the maximum soil amplification ratio,maximum surface-bedrock acceleration ratio,depth interval of significant acceleration,maximum soil-rock response ratio,and design spectrum periods TA-TB.We conducted reflection seismic survey along five line traverses with lengths between 150-300 m and delineated landslide failure surfaces within the site.We recorded shot gathers at 2-m intervals along each of the seismic line traverses using a receiver spread with 48 40-Hz vertical geophones at 2-m intervals.We applied non-linear tomography to first-arrival times to estimate a P-wave velocity-depth model and analyzed the reflected waves to obtain a seismic image of the deep near-surface along each of the line traverses.
engineering seismology geotechnical engineering earthquake engineering shear-wave velocity
Oz Yilmaz Murat Eser Mehmet Berilgen
Anatolian Geophysical,Istanbul,Turkey Yildiz Technical University,Istanbul,Turkey
国际会议
The 3rd International Conference on Environmental and Engineering Geophysics(第三届环境与工程地球物理国际会议)
武汉
英文
2-13
2008-06-15（万方平台首次上网日期，不代表论文的发表时间）