A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Project HOBO, Grouting Support
The grouting operation conducted in connection with Project HOBO consisted of four high-explosive shots made underground in tuff at the Nevada Test Site to permit a comparison between the seismic signal generated by a contained explosion in tuff and that produced by a tamped detonation in salt. To obtain shot data, three sets of instruments were placed in holes at the test site. Grouting mixtures were specially designed to match the density and sonic velocity of the in-situ material in which the instrument holes were drilled, and the instrument holes were pumped with these mixtures after the instruments were embedded. Three shot holes were drilled and pumped with a quick-setting grount mixtures for containing the detonation of the high explosive, Pelletol, and a fourth hole was drilled and filled with a special set of mixtures to provide a dry hole for the detonation of the Pelletol. Field-cast grount specimens were tested in the laboratory. The field grounting was considered successful, and laboratory test results of the field-cast specimens checked the results of density tests made in the field. (Author)
Project HOBO, Grouting Support
The grouting operation conducted in connection with Project HOBO consisted of four high-explosive shots made underground in tuff at the Nevada Test Site to permit a comparison between the seismic signal generated by a contained explosion in tuff and that produced by a tamped detonation in salt. To obtain shot data, three sets of instruments were placed in holes at the test site. Grouting mixtures were specially designed to match the density and sonic velocity of the in-situ material in which the instrument holes were drilled, and the instrument holes were pumped with these mixtures after the instruments were embedded. Three shot holes were drilled and pumped with a quick-setting grount mixtures for containing the detonation of the high explosive, Pelletol, and a fourth hole was drilled and filled with a special set of mixtures to provide a dry hole for the detonation of the Pelletol. Field-cast grount specimens were tested in the laboratory. The field grounting was considered successful, and laboratory test results of the field-cast specimens checked the results of density tests made in the field. (Author)
Project HOBO, Grouting Support
J. M. Polatty (author) / M. Glass (author)
1960
24 pages
Report
No indication
English
asunnottomuus . homelessness - Koditon - hobo, kulkuri vai pummi? . Homeless - hobo, tramp or bum?
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| NTIS | 1961
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HOBO protocol Handover of Office Building Operations
| British Library Online Contents | 2003