Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to page options Skip directly to site content

Mining Publication: FLAC Simulation of Split-Pipe Tests on an Instrumented Cable Bolt

NOTE: This page is archived for historical purposes and is no longer being maintained or updated. Contact NIOSH Mining if you need an accessible version.

Original creation date: April 2002

Image of publication FLAC Simulation of Split-Pipe Tests on an Instrumented Cable Bolt

A new instrumented cable bolt has been developed by the National Institute for Occupational Safety and Health at the Spokane Research Laboratory in Spokane, WA. Although various instruments are available to measure load distribution and magnitude along a grouted cable, this instrument is innovative in that it uses strain gauges internal to the cable as load-measuring sensors. The instrument has been successfully tested in the field at FMC's Granger Mine, Meikle Mine, and Getchell Mine. A "split-pipe" laboratory pull test was performed on each of three cable bolts instrumented with the new device. Each test consisted of grouting a 1.83-m-long cable in two 0.91-m-long sections of schedule 80 pipe. A numerical analysis was then performed in which laboratory boundary conditions were simulated and model properties derived from textbook guidelines. The loads calculated by the model were then compared to the measured loads.

Authors: M Ruest, LA Martin

Conference Paper - April 2002

Canadian Institute of Mining Annual Conference, Vancouver, BC, 2002 Apr; :9 pp