A DEVICE FOR THE MEASUREMENT OF SUB-SURFACE GROUND VIBRATIONS

A new device in place of a buried sensor is described in this paper that can be used to measure the free-field sub-surface ground vibrations in the horizontal direction. Laboratory modal analyses showed that the device has a natural frequency of about 600 Hz. For practical applications, the upper frequency limit of the device is taken as 300 Hz, which is well above the range of frequencies normally encountered in practice. Test measurements using both the device and buried sensors in residual soils from an impact load and a blast load are presented. Evaluation of the test results shows that the characteristics of the stress waves generated by these loads can be measured accurately with the device. Compared to a buried sensor, the device has the added advantages of ease of alignment to the source and ease of retrieval.

  • Availability:
  • Corporate Authors:

    American Society for Testing and Materials

    100 Barr Harbor Drive, P.O. Box C700
    West Conshohocken, PA  United States  19428-2957
  • Authors:
    • Leong, E C
    • Cheong, H K
    • Pan, T C
  • Publication Date: 1996-9

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00726879
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Oct 24 1996 12:00AM