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Showing 1 to 5 of 5 for “"pilot holes"”.
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Design and implementation of an automated gamma probe for jet boring uranium mining.
… radiometric data in Jet Boring System (JBS) pilot holes at the Cigar Lake uranium mine is presented. Variant design is used to design, develop, test and implement the detector's hardware, fi rmware and software. The battery powered detector is attached inside a JBS drill rod to collect …
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Design of a Pneumatic Tool for Manual Drilling Operations in Confined Spaces
… The purpose of this device is to back-drill pilot holes inside a commercial airplane wing. It is lightweight, and a “locator pin” enables the operator to align the drill over a pilot hole. A suction pad stabilizes the system, and an air motor and flexible drive shaft power the drill. Two …
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Technical Design, Surgical Challenges, and Troubleshooting in a Fully Guided Implant Workflow
… the first guide was designed to position the pilot holes for the 3 guide fixation pins. The teeth (namely FDI tooth position 12 and 23), soft tissue tuberosities, and fixation pins were to stabilize the second implant guide in the maxilla. The design of the second guide focuses on the correct …
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Effect of Cracking on Lag Bolt Performance
… were specific gravity, lag screw diameter, and pilot hole diameter. Two species of wood, Douglas-fir and spruce-pine-fir, three lag screws diameters, and three pilot hole diameters for each species of wood were implemented. Models were developed to predict lag screw connection capacity and 5% …
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Stress Estimation From Borehole Scans For Prediction Of Excavation Overbreak In Brittle Rock
… of crack accumulation in both cases. From two pilot holes, acoustic televiewer surveys were completed to characterize the occurrence and geometry of breakout. This was done to predict the orientation of major principal stresses in the horizontal axis, with the results being further validated by …