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Hi Guys. The solution we're looking at is to determine failure somewhere along the length of an installed bolt. It may be corrosion, stress cracking, shear failure - so not just tensile load failure, which stress/strain measurement might show. There are plenty of easy strain washer solutions to...

Thanks for the great input, guys. I agree that monitoring the rock is a good approach for general changes in movement - I'm wondering how many measure bolts you'd have per holding bolt (10%?). I think the issues with bolts includes things like corrosion, shear failure, etc, as well as tensile...

Hi. I just joined the group as I don't have a background in hard rock mining directly, but have been in the upstream oil industry for many years. I have a potential client looking for a method to monitor and identify when rock bolts fail and to send a radio frequency signal to a receiver...

I manage a small R&D company in Brisbane. We generally work on oil and gas industry on developing new downhole sensors. I have a B.Sc. in Physics and an M. Eng. in Petroleum Reservoir Engineering, with 25 years experience in the international upstream petroleum service industry. My company staff...