Discussion "Measuring Shear Wave Velocity Using Bender Elements" By Leong, E. C., Yeo, S. H., and Rahardjo, H

A discussion of a paper with the aforementioned title, published in this journal (Volume 28, No. 5), is presented. The discussers use their own experiences with bender element installation and measurements to contribute complementary information to the original article. Although the discussers agree that parallel connection is more difficult than series connection, they feel that parallel connection offers an important advantage in that the parallel connection grounds the outside electrodes and the source bender element becomes a self-shielded transducer. This configuration prevents crosstalk, particularly in soils with high electrical conductivity.