A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Grouting Support
In the Flat Top 1 event, 20 tons of high explosive, stacked in a spherical shape with the centroid at the ground surface, was detonated at the U. S. Atomic Energy Commission's Nevada Test Site (NTS). The primary purpose of this project was to study cratering and ground-shock phenomena of a detonation in hard rock. A visual postshot examination of the crater and surrounding area indicated that the instruments were well embedded in grout, that good bond to instruments was obtained, and that grouting and concreting operations appeared to be successful. An additional grout was also developed which was required to match the shock impedance of the limestone in order to couple the energy of the high explosives to the formation. The Hugoniot equation of state of this grout was determined at the explosives test site of WES at Jackson, Mississippi. This grout was placed about the high explosive stack, and although the impedance was lower than required, and effective energy coupling appeared to have been achieved. (Author)
Grouting Support
In the Flat Top 1 event, 20 tons of high explosive, stacked in a spherical shape with the centroid at the ground surface, was detonated at the U. S. Atomic Energy Commission's Nevada Test Site (NTS). The primary purpose of this project was to study cratering and ground-shock phenomena of a detonation in hard rock. A visual postshot examination of the crater and surrounding area indicated that the instruments were well embedded in grout, that good bond to instruments was obtained, and that grouting and concreting operations appeared to be successful. An additional grout was also developed which was required to match the shock impedance of the limestone in order to couple the energy of the high explosives to the formation. The Hugoniot equation of state of this grout was determined at the explosives test site of WES at Jackson, Mississippi. This grout was placed about the high explosive stack, and although the impedance was lower than required, and effective energy coupling appeared to have been achieved. (Author)
Grouting Support
J. M. Polatty (author) / J. E. McDonald (author) / H. Sugiuchi (author)
1965
36 pages
Report
No indication
English
Detonations, Explosion Effects, & Ballistics , Construction Equipment, Materials, & Supplies , Cements , Explosion effects , Surface burst , Cratering , Detonation waves , Physical properties , Limestone , Concrete , Equations of state , Acoustic impedance , Grout , Ferris wheel project , Flat top shot
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