Download or read book Scaling Dimensions of Craters Produced by Buried Explosions written by Albert J. Chabai and published by . This book was released on 1965 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: The question of the proper scaling of crater dimensions resulting from buried explosions is investigated. Dimensional analyses are performed from which four different scaling rules are derived. Data are reviewed in an attempt to distinguish which scaling rules are fundamental to cratering. Inability to perform cratering experiments with similitude apparently is one reason for lack of an unambiguous answer to the scaling question. Influences of possible sources of similarity violation are qualitatively examined, and some experiments are suggested which may provide more direct information about the correct scaling of crater dimensions.
Download or read book Method for Predicting the Shape of Explosion produced Craters written by John N. Strange and published by . This book was released on 1964 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of the Atmospheric lithostatic Pressure Ratio on Explosive Craters in Dry Soil written by Robert W. Herr and published by . This book was released on 1971 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atmospheric-lithostatic pressure ratio effects on explosive crater dimensions in dry soil.
Download or read book Crater Scaling Laws for Desert Alluvium written by A. J. Chabai and published by . This book was released on 1959 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On Cratering written by Milo D. Nordyke and published by . This book was released on 1961 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: A theory of the important cratering mechanisms, which has been evolved on the basis of these data and data from other sources, is outlined.
Download or read book Geotechnical Centrifuge Modeling of Explosion Induced Craters written by Deborah J. Goodings and published by . This book was released on 1988 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: One hundred twenty-one model tests of explosion induced craters in dry sand were conducted using small charges of PETN detonated at accelerations between 1g and 101g; ninety-six were found to be useful in analysis. Extrapolation to prototype dimensions indicates that for half-buried charges, crater volume, V, is a function of explosive weight, W to the 0.84 power, and crater radius and depth are functions of W to the 0.28 power. There were no detectable acceleration related scale effects from 31g to 101g. This confirms the value of the geotechnical centrifuge in modelling explosion induced craters at less than 100 g provided attention is paid to certain test conditions and scale effects. These include soil particle size, and angularity and soil strength which appear to strongly affect model crater volume and shape. Crater volume is also very sensitive to the unit weight of dry sand and to a lesser degree to charge location, geometry and orientation. Boundary effects arising from model dimensions and the centrifuge enclosure were examined. Keywords: Cratering, Model test extrapolation, Half buried high explosives. (EDC).
Download or read book The Encyclopedia of Field and General Geology written by Charles W. Finkl and published by Springer Science & Business Media. This book was released on 1988-04-30 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt: Field work, supplemented by laboratory studies, is a cornerstone for the geological sciences. This volume provides an introduction to general field work through selected topics that illustrate specific techniques and methodologies. One hundred and twenty-three main entries prepared by leading authorities from around the world deal with aspects of exploration surveys, geotechnical engineering, environmental management. field techniques, mapping, prospecting, and mining. Special efforts were made to include topics that consider aspects of environmental geology in particular those subjects that involve field inspections related to, for example, the placement of artificial fills, sediment control in canals and waterways, the geologic effects of cities, or the importance of expansive soils to environmental management and engineering. In addition, some widely ranging topics dealing with legal affairs, geological methodology, the scope and organization of geology, report writing, and other concepts, such as those related to plate tectonics and continental drift, provide a necessary perspective to the arena of field geology.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1965 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Analysis and Modelling in Geomechanics written by John W. Bull and published by CRC Press. This book was released on 2003-09-02 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: In geomechanics, existing design methods are very much dependent upon sophisticated on-site techniques to assess ground conditions. This book describes numerical analysis, computer simulation and modelling that can be used to answer some highly complex questions associated with geomechanics. The contributors, who are all international experts in the field, also give insights into the future directions of these methods. Numerical Analysis and Modelling in Geomechanics will appeal to professional engineers involved in designing and building both onshore and offshore structures, where geomechanical considerations may well be outside the usual codes of practice, and therefore specialist advice is required. Postgraduate researchers, degree students carrying out project work in this area will also find the book an invaluable resource.
Download or read book Crater Measurements from a Twenty ton Surface Explosion written by Waterways Experiment Station (U.S.) and published by . This book was released on 1962 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cratering from High Explosive Charges written by Waterways Experiment Station (U.S.) and published by . This book was released on 1961 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Explosive Cratering Experiments written by Luke J. Vortman and published by . This book was released on 1961 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1969-03 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book United States Army Combat Forces Journal written by and published by . This book was released on 1964 with total page 1180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annex V Study of Engineering Feasibility written by United States. Atlantic-Pacific Interoceanic Canal Study Commission and published by . This book was released on 1970 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Craters from Two Charges Buried in Vertical Array written by Luke J. Vortman and published by . This book was released on 1964 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series of experiments was performed to study the crater dimensions produced by two 64-pound HE charges fired in a vertical configuration at varying depths and with varying distances between the charges. Firings were made both simultaneously and with time delays. For simultaneous firings, the dimensions are usually between those of a single charge equivalent in weight to the two charges and those of a single charge equivalent in weight to one of the charges. For long-time-delay firings (5.5 seconds, with the top charge fired first), crater depths are greater than for a single charge equivalent in weight to the two charges for one spacing, while other dimensions fall in the range mentioned above. This increased depth is potentially the most valuable characteristic of the dual-charge technique. Short-time-delay firings (1 to 10 msec) produced depths about the same as and radii and volumes smaller than either simultaneous or long-delay shots.
Download or read book Crater Scaling in Granite for Small Charges written by Dennis V. D'Andrea and published by . This book was released on 1970 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
