Shallow SH-wave seismic refraction and reflection methodssite-specific seismic hazards applications
The SH-wave seismic technique is becoming more common in shallow engineering and environmental surveys, because of its insensitivity to ground-water masking, and its frequent capacity to provide higher resolution relative to the traditional P-wave method. In this paper, we show applications of the SH-wave method for earthquake site classification and shallow investigation of active faults in the Gansu Province of the Peoples Republic of China. The seismic S-wave velocities and thicknesses of the shallow nonlithified sediments have a significant role in sitespecific earthquake ground-motion response; thus are the basis for many of the empirical and theoretical earthquake hazard classifications in geotechnical earthquake engineering. The SH-wave refraction/reflection method has been shown to be effective in characterizing these dynamic site properties. In addition, SH-wave CMP profiles in urban areas underlain by low-velocity, watersaturated sediment can assist in the identification of shallow neotectonic structures (i.e. ≤ 50m) that are a primary input parameter to any seismic hazard analysis.
SH-wave seismic investigation site classification active fault investigation seismic hazards
Yuxia Lu Edward W. Woolery Zhenming Wang Yucheng Shi
Lanzhou Base of Institute of Earthquake Prediction, CEA, 730000, China Lanzhou Institute of Seismolo Department of Earth and Environment Sciences,University of Kentucky, KY, 40506, USA Kentucky Geological Survey,KY,40506,USA Lanzhou Base of Institute of Earthquake Prediction,CEA,730000,China Lanzhou Institute of Seismology,
国际会议
成都
英文
90-95
2010-06-14（万方平台首次上网日期，不代表论文的发表时间）