Underground nuclear explosion effects in granite rock fracturing

Conference · Sat Oct 31 04:00:00 EST 1970

OSTI ID:4106824

Derlich, S. ^[1]

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1. Commissariat a l'Energie Atomique, Centre d'Etude de Bruyeres-le-Chatel (France)

On the Saharan nuclear test site in Hoggar granite, mechanical properties of the altered zones were studied by in situ and laboratory measurements. In situ methods of study are drillings, television, geophysical and permeability measurements. Fracturing is one of the most important nuclear explosion effects. Several altered zones were identified. There are: crushed zone, fractured zone and stressed zone. Collapse of crushed and fractured zone formed the chimney. The extent of each zone can be expressed in terms of yield and of characteristic parameters. Such results are of main interest for industrial uses of underground nuclear explosives in hard rock. (author)

• Research Organization: Commissariat a l'Energie Atomique, Bruyeres-le-Chatel (France). Centre d'Etudes
• Sponsoring Organization: Not provided
• NSA Number: NSA-24-041496
• OSTI ID: 4106824
• Report Number(s): CONF-700101--(Vol.1)
• Country of Publication: United States
• Language: English

Related Subjects

AFRICA
DESERT
EVAPORATION
FAILURES
FRACTURES
GRANITES
GRANITES/mechanical properties of nuclear explosion-fractured Hoggar
methods for measurement of
MECHANICAL PROPERTIES
N24120* --Engineering--Nuclear Explosions--Industrial Uses
NUCLEAR EXPLOSIONS
NUCLEAR EXPLOSIONS
UNDERGROUND/effects on mechanical properties of Hoggar granite
Sahara tests on
RAIN
ROCKS
SAHARA DESERT
TESTING
UNDERGROUND EXPLOSIONS