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Application of seismic shear wave detection in dividing shallow strata of rock and soil

CHEN Xiang-fu,An Xi-feng(Henan academy of geophysical and engineering exploration,Xinxiang 453000,China)  
This paper discusses basic characteristic of transverse wave and indicates that shear wave detection,which has high exploration precision and is not influenced by the degree of saturation,has advantage in unconsolidated strata as well as thickness detection.Therefore,seismic shear wave detection can be used to divide Quaternary unconsolidated strata.Based on the case of urban geologic survey in Guangzhou,the paper introduces data collection method used in shallow exploration in process of seismic transverse wave detection,and analyses the geologic explanation for results as well as divides the strata in this way coupled with method of well logging.The analysis shows that most of rock-soil strata have good corresponding relation to reflecting surface,and that seismic shear wave exploration method combined with well logging is feasible to divide Quaternary unconsolidated strata.
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