A sonic system for the determination of 'in situ' dynamic properties and for the outlining of fracture zones: M34-20/75E-PDF

“A sonic system is described which has been developed for probing the rock around mining openings. With this system, transit time measurements of a few hundred microseconds to many milliseconds can be made with an accuracy of 5%. The sonic apparatus is relatively portable and entirely independent of external power requirements, allowing its use in remote mining locations. A hammer blow is used as a source of signal. For transit time measurements between boreholes, hydraulically wedged transmitting and receiving units have been developed; receiving units for application on rock faces have also been developed and used. The basic assumption on which sonic transit velocity is related to fracture zone is stated and some of the possible applications of such measurements are outlined. Field measurements to substantiate some of the statements made are also included"--Abstract, p. i.

Permanent link to this Catalogue Record: What is a permanent link?
http://publications.gc.ca/pub?id=9.841168&sl=0
MARC XML Format   MARC HTML Format

Department/Agency Natural Resources Canada. Mines Branch.
Title A sonic system for the determination of 'in situ' dynamic properties and for the outlining of fracture zones
Series Title Technical bulletin ;
Publication Type Series - View Master Record
Language [English]
Format Electronic
Electronic Document

Archived Content

Information identified as archived is provided for reference, research or recordkeeping purposes. It is not subject to the Government of Canada Web Standards and has not been altered or updated since it was archived. Please contact the authoring department to request a format other than those available.

We invite you to consult the Frequently Asked Questions page for additional information regarding the Archived Content notice.


Having trouble opening this document?

Note: The URLs contained in this/these document(s) may no longer be functional
Note Caption title. Imperfect copy: cover missing. Digitized edition from print [produced by Natural Resources Canada].
Date 1965]
Number of Pages iv, 23 p. :
Catalogue Number
  • M34-20/75E-PDF
Departmental Catalogue Number 299962
Subject Terms Mining industry