Environmental Engineering

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

By Yoseph Bar-Cohen, Kris Zacny

Uniquely accomplished and recent, this publication 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 most sensible rating public and company examine associations and supply the following real-life examples, difficulties, options and case stories, subsidized through colour pictures throughout.
The result's a must have 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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Additional resources for Drilling in Extreme Environments: Penetration and Sampling on Earth and other Planets

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To address the challenges presented by the large variety of materials that need to be penetrated in drilling into our own planet’s surface, scientists and engineers have developed many types of drills, with mechanical drills being the most common. Mechanical drills use a bit with a tip that interacts with the drilled medium and applies cutting or breaking forces over a small area to achieve large shear and/or impact stresses. These types of bits are widely used and can be purchased at local hardware stores.

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. After World War II, hand-held jackhammers were developed that could be flexibly attached to an air cylinder; these drills allowed miners to drill in any desired direction without the need to mount the drill on a support structure.

The sample was removed and placed on the blue sheet. (b) Granite hole with powder removed. Courtesy ESA and Galileo Avionica. 60 Near-Earth asteroid sampling system. (a) Sampling principle; (b) conceptual corer tool; (c) robotic arm; (d) sample transfer operations to the Earth re-entry capsule. Courtesy ESA and Galileo Avionica. 67 RESOLVE Sample Acquisition and Preprocessing System (EBRC) in drilling mode. Courtesy NORCAT. 104 Subsurface stratigraphy inferred from coring and drilling using the DAME drill during the 2006 test in the Haughton Crater on Devon Island, Arctic.

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