CROSSHOLE: AN INTERPRETIVE COMPUTER CODE FOR CROSSHOLE SEISMIC TEST RESULTS, DOCUMENTATION, AND EXAMPLES

The crosshole seismic test is a method for determination of in situ compression and shear wave velocities in soil and rock as a function of depth. Transient times of seismic waves are measured between the seismic energy source located in one borehole and triaxial receiver geophones located at the same or different depths in nearby boreholes. Apparent velocities are calculated by dividing the distance between the source and receiver by the transient time. In nonuniform media, such as layered soil systems, apparent velocities are frequently not equal to true velocities. In order to determine true velocities and correct interface depths, the actual travel path of the seismic waves (whether direct or refracted through a higher velocity layer at another depth) must be considered. This report documents CROSSHOLE, a computer program that was developed to perform the large number of calculations required to determine true velocities and interface depths for multilayer soil and rock profiles. Several helpful examples are included to demonstrate various input and output options available to the user. /Author/

  • Corporate Authors:

    U.S. Army Waterways Experiment Station

    3909 Halls Ferry Road
    Vicksburg, MS  United States  39180-6199
  • Authors:
    • Butler, D K
    • Skoglund, G R
    • Landers, G B
  • Publication Date: 1978-7

Media Info

  • Features: Appendices; Figures; References;
  • Pagination: 35 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00183695
  • Record Type: Publication
  • Report/Paper Numbers: Final Rpt.
  • Files: TRIS
  • Created Date: Dec 3 1978 12:00AM