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Seismic Hard In-Situ Source Test (SHIST) CRALE 1D and 2D Scoping Calculations.

ADA300913

Publication Date	1995
Personal Author	Koik, V. E.; Rocco, J. R.; Thomsen, J. M.
Page Count	132
Abstract	SHIST (Seismic Hard rock In-Situ Source Test) was a proposed prototype High Explosive (HE) seismic source function experiment designed to provide a benchmark data set for seismic source function models in hard rock geology and also to provide a threshold of detection calibration point for regional seismic monitoring systems. This report describes preliminary material models developed for the site and 1D and 2D finite difference scoping calculations performed to serve as a starting point should the test (or other HE test requiring a hard rock geology) be revived in the future. The intent of this study was to investigate the details of the shock wave propagation into granite, and to determine the seismic transition point (the range at which the stress wave developed by the HE source began to decay as an elastic wave) to assist with gage placement activities.
Keywords	Underground explosions Seismic waves Monitoring Finite element analysis Shock waves Faults(Geology) Wave propagation Transitions Calibration Hardness Seismology High explosives Stress waves Elastic waves Crale computer programs Shist(Seismic hard rick in situ source test) Seismic sources
Source Agency	Secretary of Defense Non Paid ADAS
NTIS Subject Category	79E - Detonations, Explosion Effects, & Ballistics 48F - Geology & Geophysics 63I - Seismic Detection
Corporate Authors	Titan Corp., Chatsworth, CA.
Document Type	Technical Report
Title Note	Technical rept. 15 Sep 93-15 Mar 95.
NTIS Issue Number	199609

Seismic Hard In-Situ Source Test (SHIST) CRALE 1D and 2D Scoping Calculations.

Seismic Hard In-Situ Source Test (SHIST) CRALE 1D and 2D Scoping Calculations.
ADA300913

Publication Date	1995
Personal Author	Koik, V. E.; Rocco, J. R.; Thomsen, J. M.
Page Count	132
Abstract	SHIST (Seismic Hard rock In-Situ Source Test) was a proposed prototype High Explosive (HE) seismic source function experiment designed to provide a benchmark data set for seismic source function models in hard rock geology and also to provide a threshold of detection calibration point for regional seismic monitoring systems. This report describes preliminary material models developed for the site and 1D and 2D finite difference scoping calculations performed to serve as a starting point should the test (or other HE test requiring a hard rock geology) be revived in the future. The intent of this study was to investigate the details of the shock wave propagation into granite, and to determine the seismic transition point (the range at which the stress wave developed by the HE source began to decay as an elastic wave) to assist with gage placement activities.
Keywords	Underground explosions Seismic waves Monitoring Finite element analysis Shock waves Faults(Geology) Wave propagation Transitions Calibration Hardness Seismology High explosives Stress waves Elastic waves Crale computer programs Shist(Seismic hard rick in situ source test) Seismic sources
Source Agency	Secretary of Defense Non Paid ADAS
NTIS Subject Category	79E - Detonations, Explosion Effects, & Ballistics 48F - Geology & Geophysics 63I - Seismic Detection
Corporate Authors	Titan Corp., Chatsworth, CA.
Document Type	Technical Report
Title Note	Technical rept. 15 Sep 93-15 Mar 95.
NTIS Issue Number	199609