Accession Number:

AD0774801

Title:

Material Properties for Postshot Mixed Company Analysis: Recommendations Based on Recent Laboratory and in situ Test Data

Descriptive Note:

Final rept.

Corporate Author:

ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS

Personal Author(s):

• Ehrgott, John Q.
• Jackson, Jr, John G.

Report Date:

1974-01-01

Pagination or Media Count:

79.0

Abstract:

The paper presents the results of a reevaluation of the Mixed Company site profile and constitutive properties using both field and laboratory data. Revisions to the subsurface profile were based primarily on the water contents determined in the soil overburden at shot time. An extensive reanalysis of the seismic velocity data was conducted. New constitutive property recommendations for the overburden soil were developed based on laboratory tests conducted on specimens taken in the field just a few days after the event. The properties of the Kayenta Formation were revised to consider the effect of loading rate on the initial portion of the uniaxial strain UX test stress-strain curves, the effects of anisotropy on the observed triaxial shear TX and UX test behaviors, and the correlation observed between shear strength obtained from laboratory tests and strength obtained from an in situ test.

Descriptors:

• *ROCK MECHANICS
• *SOIL MECHANICS
• *NUCLEAR EXPLOSIONS
• PRECURSORS
• SITES
• AIRBURST
• GROUND SHOCK
• NUCLEAR INDUSTRIAL APPLICATIONS
• SEISMIC DETECTION
• CRATERING
• GROUND MOTION
• SURVEYS
• HIGH EXPLOSIVES
• PREDICTIONS
• SIMULATION
• STRESSES
• TEST METHODS

Subject Categories:

• Geology, Geochemistry and Mineralogy
• Soil Mechanics
• Explosions

Distribution Statement:

APPROVED FOR PUBLIC RELEASE