In Situ P and S Wave Velocity Measurementby Satoru Ohya, Oyo Corp, Houston, TX, USA,
Abstract: A review of the in situ techniques to measure P and S wave velocities by seismic wave propagation is presented. A relatively new technique, the suspension PS logging method, is described in detail. Field results of P and S wave velocity measurements utilizing the downhole method, cross hole method, and suspension PS logging method are compared and discussed. The PS suspension logging method is a promising technique and provides accurate velocity information in layered soils.
Subject Headings: Wave velocity | Wave measurement | Shear waves | Wave propagation | Seismic tests | Field tests | Layered soils
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