Soil shear wave velocity is an important parameter of earthquake engineering. Classification of engineering site sort

reassessment of saturated sandy soil liquefaction and subsoil earthquake response analysis all depend on subsoil shear wave velocity. An optimized approach for single-hole method of shear wave velocity measurement is presented. The approach overcomes main irrationalities of minus velocities

over-large and over-small velocities and large velocity differences among measuring points in the same layer of traditional analysis method

improves the data processing precision and efficiency of single-hole method.