A study of shear wave velocity correlations of Bangkok subsoil
DOI:
https://doi.org/10.21703/0718-2813.2010.7.3712Keywords:
shear wave velocity, small strain shear modulus, down hole test, multi-channel analysis of surface wave, Bangkok clayAbstract
One of the essential soil dynamic parameters, especially in geotechnical earthquake engineering applications, is the shear wave velocity. The shear wave velocity can be used to estimate the low strain amplitude shear modulus which is one of the input parameters for a seismic site response analysis. There were a few investigation schemes trying to determine the shear wave velocity of Bangkok Clay from both laboratory and field tests. Two recent studies on the shear wave velocity of Bangkok Clay have been published by Teachavorasinskun and Lukkunaprasit (2004) and Seng (2009). The former presented a simple correlation for shear wave velocity of Bangkok clays which assume that the shear wave velocities are linear functions with depth for four particular sites around Bangkok. The latter conducted a series of down-hole tests and multi-channel analysis of surface wave (MASW) to direct measure the shear wave velocity profiles of three particular sites in Bangkok. This paper presents a unified correlation of shear wave velocity for Bangkok subsoil based on previous studies and two recent studies.
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