UNDERGROUND EXPLOSION EFFECTS.

UNDERGROUND EXPLOSION EFFECTS. PDF Author: D. C. Sachs
Publisher:
ISBN:
Category : Blast effect
Languages : en
Pages : 118

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Book Description
Project 1.7 of Operation TEAPOT was concerned with the measurement of surface and subsurface effects of an underground explosion of a 1.2-kt nuclear burst (Shot 7). The measurements included free-field earth and airblast effects, as well as loading on underground structural devices. This report deals with the presentation and analysis of the free-field data only; the structural data have been transmitted to the appropriate agencies for their analysis. From the 76 channels installed on TEAPOT Shot 7, 75 usable records were obtained. The free-field quantities measured include air-blast pressure, earth acceleration, earth stress and strain, and permanent earth displacement. The results are discussed by phenomenon and, in each case, the TEAPOT data are compared with pretest predictions. Also, where data are available, comparisons are made with previous underground nuclear test results. Some aspects of seismology and soil mechanics as applied to underground explosion phenomena are presented and, finally, the most pertinent high explosives results from subsequent tests conducted at the TEAPOT location are summarized. (Author).

UNDERGROUND EXPLOSION EFFECTS.

UNDERGROUND EXPLOSION EFFECTS. PDF Author: D. C. Sachs
Publisher:
ISBN:
Category : Blast effect
Languages : en
Pages : 118

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Book Description
Project 1.7 of Operation TEAPOT was concerned with the measurement of surface and subsurface effects of an underground explosion of a 1.2-kt nuclear burst (Shot 7). The measurements included free-field earth and airblast effects, as well as loading on underground structural devices. This report deals with the presentation and analysis of the free-field data only; the structural data have been transmitted to the appropriate agencies for their analysis. From the 76 channels installed on TEAPOT Shot 7, 75 usable records were obtained. The free-field quantities measured include air-blast pressure, earth acceleration, earth stress and strain, and permanent earth displacement. The results are discussed by phenomenon and, in each case, the TEAPOT data are compared with pretest predictions. Also, where data are available, comparisons are made with previous underground nuclear test results. Some aspects of seismology and soil mechanics as applied to underground explosion phenomena are presented and, finally, the most pertinent high explosives results from subsequent tests conducted at the TEAPOT location are summarized. (Author).

Design of Underground Installations in Rock

Design of Underground Installations in Rock PDF Author:
Publisher:
ISBN:
Category : Blast effect
Languages : en
Pages : 72

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Effects of Stemming on Underground Explosions

Effects of Stemming on Underground Explosions PDF Author: Waterways Experiment Station (U.S.)
Publisher:
ISBN:
Category : Cratering
Languages : en
Pages : 84

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Some Seismic Effects of Underground Explosions in Cavities

Some Seismic Effects of Underground Explosions in Cavities PDF Author: George L. Lamb
Publisher:
ISBN:
Category : Elastic waves
Languages : en
Pages : 72

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Effects of Nuclear Earth-Penetrator and Other Weapons

Effects of Nuclear Earth-Penetrator and Other Weapons PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309096731
Category : Technology & Engineering
Languages : en
Pages : 146

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Book Description
Underground facilities are used extensively by many nations to conceal and protect strategic military functions and weapons' stockpiles. Because of their depth and hardened status, however, many of these strategic hard and deeply buried targets could only be put at risk by conventional or nuclear earth penetrating weapons (EPW). Recently, an engineering feasibility study, the robust nuclear earth penetrator program, was started by DOE and DOD to determine if a more effective EPW could be designed using major components of existing nuclear weapons. This activity has created some controversy about, among other things, the level of collateral damage that would ensue if such a weapon were used. To help clarify this issue, the Congress, in P.L. 107-314, directed the Secretary of Defense to request from the NRC a study of the anticipated health and environmental effects of nuclear earth-penetrators and other weapons and the effect of both conventional and nuclear weapons against the storage of biological and chemical weapons. This report provides the results of those analyses. Based on detailed numerical calculations, the report presents a series of findings comparing the effectiveness and expected collateral damage of nuclear EPW and surface nuclear weapons under a variety of conditions.

Explosive Shocks in Air

Explosive Shocks in Air PDF Author: Gilbert F. Kinney
Publisher: Springer Science & Business Media
ISBN: 3642866824
Category : Technology & Engineering
Languages : en
Pages : 281

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Book Description
A purpose of science is to organize diversified factual knowledge into a coherent body of information, and to present this from the simplest possible viewpoint. This is a formidable task where our knowledge is incomplete, as it is with explosions. Here one runs the risk of oversimplification, naivete, and incom pleteness. Nevertheless a purpose of this work is to present as simply as possible a general description of the basic nature of explosions. This treatise should be of interest to all who are working with explosives such as used in construction or in demolition work, in mining operations, or in military applications. It should also be of interest to those concemed with disasters such as explosions or earthquakes, to those involved in civil defense precautions, and to those concemed with defense against terrorists. That is, this material should be of interest to all who wish to utilize, or to avoid, the effects of explosions as weil as to those whose interest is primarily scientific in nature.

Surface Motions from an Underground Explosion

Surface Motions from an Underground Explosion PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 60

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Book Description
Seismic effects of Rainier, a 1.7-kt nuclear shot detonated 900 feet underground, were measured in terms of ground surface motion at ten strong-motion seismograph stations located 1200 to 45,000 feet from the source. In addition, records were borrowed from seven teleseismic stations located 100 to 300 miles from the source. Recorded accelerations attenuated from a maximum singlecomponent value of 2.6 g at 1280 feet to 0.009 g at 17,640 feet. Gutenberg-Richter magnitude of Rainier, calculated as for a natural earthquake from seven WoodAnderson seismograph records, was 4.6. Earthquakes of 4.6 magnitude are felt up to 60 miles from the epicenter, however, Rainier was felt by only a few observers at 21/2 miles. Seismologists at established teleseismic stations were able to pick out Rainier's elastic wave signature on seismograms at considerable distance. Very small amplitude waves from Rainier were found on the Coast and Geodetic Survey, College, Alaska, seismogram, 3600 km away, although attempts in the eastern United States at distances of 2000 to 3000 km, using conventional instruments, were not successful.

Nuclear Explosion Effects on Structures and Protective Construction

Nuclear Explosion Effects on Structures and Protective Construction PDF Author: U.S. Atomic Energy Commission
Publisher:
ISBN:
Category : Atomic bomb
Languages : en
Pages : 64

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ISC Security Design Criteria for New Federal Office Buildings and Major Modernization Projects

ISC Security Design Criteria for New Federal Office Buildings and Major Modernization Projects PDF Author: National Research Council
Publisher: National Academies Press
ISBN: 0309088801
Category : Technology & Engineering
Languages : en
Pages : 126

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Book Description
In November 1999, GSA and the U.S. Department of State convened a symposium to discuss the apparently conflicting objectives of security from terrorist attack and the design of public buildings in an open society. The symposium sponsors rejected the notion of rigid, prescriptive design approaches. The symposium concluded with a challenge to the design and security professions to craft aesthetically appealing architectural solutions that achieve balanced, performance-based approaches to both openness and security. In response to a request from the Office of the Chief Architect of the Public Buildings Service, the National Research Council (NRC) assembled a panel of independent experts, the Committee to Review the Security Design Criteria of the Interagency Security Committee. This committee was tasked to evaluate the ISC Security Design Criteria to determine whether particular provisions might be too prescriptive to allow a design professional "reasonable flexibility" in achieving desired security and physical protection objectives.

Effects of Type of Cut, Delay, and Explosive on Underground Blasting in Frozen Gravel

Effects of Type of Cut, Delay, and Explosive on Underground Blasting in Frozen Gravel PDF Author: Richard A. Dick
Publisher:
ISBN:
Category : Blast effect
Languages : en
Pages : 26

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