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The Effects Of Explosions On Snow
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Book Synopsis Effect of Explosions on Snow Structures by : Henryk Szostak
Download or read book Effect of Explosions on Snow Structures written by Henryk Szostak and published by . This book was released on 1966 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the summar of 1960, tests were conducted on the Greenland Ice Cap to study the resistance and behavior of snow structures to dynamic loading from a surface or above-surface air blast of 4 or 32 lb. spherical cast TNT. A number of small-and full-scale vertical and full-size horizontal arches were constructed in processed snow pads. Arch spans and arch crown thickness were varied to establish a relation between surface overpressure and the ratio of arch span (S) to arch crown thickness (T). Some correlation was found for vertical structures but none between vertical and horizontal arches. The results show that, for the same charge weight and S/T ratio, the horizontal structures can withstand over 100 psi overpressure, while smale-scale vertical arches fail at 20 psi. (Author).
Book Synopsis The Effects of Explosions on Snow by : Stephan Simioni
Download or read book The Effects of Explosions on Snow written by Stephan Simioni and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Explosions and Snow by : Malcolm Mellor
Download or read book Explosions and Snow written by Malcolm Mellor and published by . This book was released on 1965 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph summarizes available information on the response of snow to explosions and on the modification of blase effects by snow.
Book Synopsis The Effects of Explosives on the Physical Properties of Snow by : Robyn Elaine Wooldridge
Download or read book The Effects of Explosives on the Physical Properties of Snow written by Robyn Elaine Wooldridge and published by . This book was released on 2013 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explosives are a critically important component of avalanche control programs. They are used to both initiate avalanches and to test snowpack instability by ski areas, highway departments and other avalanche programs around the world. Current understanding of the effects of explosives on snow is mainly limited to shock wave behavior demonstrated through stress wave velocities, pressures and attenuation. This study seeks to enhance current knowledge of how explosives physically alter snow by providing data from field-based observations and analyses that quantify the effect of explosives on snow density, snow hardness and snow stability test results. Density, hardness and stability test results were evaluated both before and after the application of 0.9 kg cast pentolite boosters as surface and air blasts. Changes in these properties were evaluated at specified distances up to 5.5 meters (m) from the blast center for surface blasts and up to 4 m from the blast center for air blasts. A density gauge, hand hardness, a ram penetrometer, Compression Tests (CTs), and Extended Column Tests (ECTs) were used. In addition to the field based observations, the measurement error of the density gauge was established in laboratory tests. Results from surface blasts did not provide conclusive data. Air blasts yielded statistically significant density increases out to a distance of 1.5 m from the blast center and down to a depth of 50 centimeters (cm). Statistically significant density increases were also observed at the surface (down to 20 cm) out to a distance of 4 m. Hardness data showed little to no measurable change. Results from CTs showed a statistically significant decrease in the number of taps needed for column failure 4 m from the blast center in the post-explosive tests. A smaller data set of ECT results showed no overall change in ECT score. The findings of this study provide a better understanding of the physical changes in snow following explosives, which may lead to more effective and efficient avalanche risk mitigation.
Book Synopsis A Study of the Effects of Snow Cover on High Explosive Blast Parameters by : Denver Research Institute
Download or read book A Study of the Effects of Snow Cover on High Explosive Blast Parameters written by Denver Research Institute and published by . This book was released on 1966 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Explosives on Snow by : Alfred Fuchs
Download or read book Effects of Explosives on Snow written by Alfred Fuchs and published by . This book was released on 1957 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of a Shock Wave on a Peter Snow Arch by : John E. Mc.Coy
Download or read book Effects of a Shock Wave on a Peter Snow Arch written by John E. Mc.Coy and published by . This book was released on 1960 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Army Snow Ice and Permafrost Research Establishment (USA SIPRE) was requested by the Office, Chief of Engineers to conduct a small-scale test to evaluate the resistance of a rigid snow trench cover to the blast effects of a military explosive. The USA SIPRE field crew conducting research on snow structures at Camp Century, 138 miles inland from Camp Tuto, Greenland, was requested to prepare the test setup. U.S. Army Engineer Waterways Experiment Station (USA WES) was requested to measure the magnitude of the pressure wave during the test. The objective of the test was to obtain preliminary information which would be used to estimate the probable effect of large-scale explosions on a snow arch roof. (Author).
Book Synopsis Some Effects of High Explosives on Snow by : Edward R. LaChapelle
Download or read book Some Effects of High Explosives on Snow written by Edward R. LaChapelle and published by . This book was released on 1956 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Explosions in Snow by : Clifton W. Livingston
Download or read book Explosions in Snow written by Clifton W. Livingston and published by . This book was released on 1968 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of a 20-ton TNT Explosion on a Snow Cover by : Roy E. Bates
Download or read book Effects of a 20-ton TNT Explosion on a Snow Cover written by Roy E. Bates and published by . This book was released on 1968 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Explosives on Snow by : Alfred Fuchs
Download or read book Effects of Explosives on Snow written by Alfred Fuchs and published by . This book was released on 1957 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Explosions and Snow by : Malcolm Mellor
Download or read book Explosions and Snow written by Malcolm Mellor and published by . This book was released on 1965 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph summarizes available information on the response of snow to explosions and on the modification of blase effects by snow.
Book Synopsis CRREL Report by : Cold Regions Research and Engineering Laboratory (U.S.)
Download or read book CRREL Report written by Cold Regions Research and Engineering Laboratory (U.S.) and published by . This book was released on 1976 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Blasting and Blast Effects in Cold Regions: Air blast by : Malcolm Mellor
Download or read book Blasting and Blast Effects in Cold Regions: Air blast written by Malcolm Mellor and published by . This book was released on 1985 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Explosions in Snow by : Cold Regions Research and Engineering Laboratory (U.S.)
Download or read book Explosions in Snow written by Cold Regions Research and Engineering Laboratory (U.S.) and published by . This book was released on 1962 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis USA CRREL Technical Publications by : Cold Regions Research and Engineering Laboratory (U.S.)
Download or read book USA CRREL Technical Publications written by Cold Regions Research and Engineering Laboratory (U.S.) and published by . This book was released on 1972 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SIPRE Report written by and published by . This book was released on with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
