What Does Compressional Wave Velocity Mean?
Compressional wave velocity is a measure of the velocity with which sound waves pass through soil and rock strata. It varies with porosity, lithology, degree of fracturing and bulk density of the earth material. Site investigation for trenchless construction includes both soil and rock depending on geology, and the degree of saturation greatly influences the compressional wave velocity.
Different methods such as suspension logging, seismic refraction, crosshole test, and downhole test are used to measure compressional wave velocity.