Get Drilling in Extreme Environments: Penetration and Sampling PDF

By Yoseph Bar-Cohen, Kris Zacny

ISBN-10: 3527408525

ISBN-13: 9783527408528

Uniquely finished and recent, this booklet covers terrestrial in addition to extraterrestrial drilling and excavation, combining the expertise of drilling with the cutting-edge in robotics. The authors come from and best rating public and company study associations and supply right here real-life examples, difficulties, ideas and case stories, sponsored by way of colour images throughout.
The result's essential for oil businesses and all scientists desirous about planetary learn with robot probes.
With a foreword through Harrison "Jack" Schmitt -- the 1st geologist to drill at the moon.

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Extra resources for Drilling in Extreme Environments: Penetration and Sampling on Earth and other Planets

Example text

This pneumatic drill was a hammer-type drill that impacted a metal rod into rocks. This particular drill and many others, invented by Joseph W. Fowle (1849–1851) and Cave in Paris (1851), were driven by steam. Although these drills found numerous applications on the surface, they were not suitable for underground drilling, where in fact most of the drilling for mineral excavation was taking place. In the early stages, the steam machinery had to be kept close to the boiler, since lengthy hoses were not available and the steam lost its heat and pressure when transported over long distances.

20 Typical DISC drill control screen depiction of a coring run. The figure shows from the start of the run (when the drill is at the bottom of the hole, ready to cut ice) to the end of the cutting, but not the core break. The abscissa is the time axis: one division is 90 s. On the ordinate there is a specific scale for each quantity. 25 N m. 5 m. (4) Blue: weight on bit (WOB), from À2500 N (value on abscissa) to þ 2500 N; one division is 625 N. (5) Green: cable tension, from 0 to 5000 N; one division is 625 N.

6 km deep, is the world deepest mine (the shaft is visible in the background). The hills in the foreground are tailings of recovered and processed gold-bearing rock. Today, drill rods can slide more freely in a chuck and do not deform when the piston hits their top end. The invention of the replaceable bit in 1918 by A. L. Hawkesworth, a mechanical foreman for the Anaconda Company in Butte, MT, USA, made drilling even more efficient, because now only cutting edges were replaced and not entire drill sections.

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Drilling in Extreme Environments: Penetration and Sampling on Earth and other Planets by Yoseph Bar-Cohen, Kris Zacny


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