A STUDY OF PORE AIR PRESSURES GENERATED IN SOIL SUBJECTED TO AIR SHOCK WAVES.

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Abstract:

The propagation of pore air pressure in specimens of soil subjected to a shock wave was investigated in two series of tests. The soils tested were a uniformly graded pea gravel, a standard 20-30 Ottawa sand, and a well-graded silty sand. The orientation of the shock wave to the soil sample was head-on in the first series of tests, and side-on in the second. In the first series, the maximum overpressure reflected on the upstream end of the sample was approximately 126 psi and in the second, the maximum incident pressure was approximately 115 psi. The effect of wave shape, peak overpressure, permeability, total impulse per unit area, and positive-phase duration is ascertained. The data are also qualitatively reviewed in the light of full-scale field conditions. Author

Author(s):
Hampton, Delon
Author Organization(s):
NEW MEXICO UNIV ALBUQUERQUE AIR FORCE SHOCK TUBE FACILITY
Descriptive Note:
Rept. for Aug-Dec 62,
Annotation:
A study of pore air pressures generated in soil subjected to air shock waves.
Pagination:
0096

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFWL-TDR64 3
Contract/Grant Number(s):
AF29 601 6002
Project Number(s):
AF-5710
Monitor Series:
TDR64 3
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*SOILS, AIR, SHOCK WAVES, GRAVEL, SAND, SILT, PRESSURE, WAVE PROPAGATION, PROPAGATION, PERMEABILITY, UNDERGROUND STRUCTURES, SOIL MECHANICS, PENETRATION, INSTRUMENTATION, TEST METHODS, SHOCK TUBES, RECORDING SYSTEMS, DATA PROCESSING
Report Date:
1964 Oct 01