Application of the Non-Destructive Testing Method to Determine the G_max of Bangkok Clay

Abstract:

This article presents the application of the non-destructive testing method (so called Bender element test) to measure the shear wave velocity and determine the maximum shear modulus of soft Bangkok clay samples. This research proposes the bender element technique to measure the shear wave velocity by means of piezoelectric ceramic sensors. The details of the bender element test were clearly explained. The laboratory bender element test data of the shear wave velocity were compared with the field test results and show that the field propagating waves pass along layers of higher stiffness while the laboratory test data were performed on small, possible less stiff material. The inversion calculation of the shear wave velocity in the field test is based on a linear elastic isotropic assumption which is not valid for the Bangkok subsoil and might be a second reason for the noticed differences in velocity.

• Periodical: Applied Mechanics and Materials (Volume 418)
• Pages: 157-160
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.418.157
• Online since: September 2013
• Authors: Keeratikan Piriyakul
• Keywords: Bangkok Clay, Bender Element Test, Shear Modulus, Shear Wave Velocity

References

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