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COMBINING LASER MEASUREMENTS WITH BACKWARD WAVE TECHNIQUES FOR EVALUATION OF…

Award Information

Agency:
Nuclear Regulatory Commission
Branch:
N/A
Award ID:
296
Program Year/Program:
1984 / SBIR
Agency Tracking Number:
296
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Sigma Research Corp
234 Littleton Rd - Ste 2e Westford, MA 01886
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1984
Title: COMBINING LASER MEASUREMENTS WITH BACKWARD WAVE TECHNIQUES FOR EVALUATION OF UNDERGROUND OPENINGS IN OIL SHALE
Agency: NRC
Contract: N/A
Award Amount: $249,949.00
 

Abstract:

SUCCESSFUL COMMERCIALIZATION OF OIL SHALE WILL INVOLVE LARGESCALE UNDERGROUND MINING OR RETORTING, AND WILL REQUIRE SUPPORT TECHNOLOGY TO EVALUATE THE INTEGRITY OF SUPPORT PILLARS, MINE ROOF ROCK, AND OTHER LARGE STRUCTURES IN OIL SHALE. IN ORDER TO ELIMINATE TIME CONSUMING AND OBTRUSIVE EVALUATION METHODS INVOLVING CONTRACT TYPE DETECTORS (GEOPHONES, ACCELEROMETERS, ETC.), IT IS PROPOSED HERE THAT OIL SHALE STRUCTURES BE EVALUATED BY NONCONTRACT OPTICAL METHODS. IN PARTICULAR, WE PROPOSE THAT THE RESPONSE OF ROCK STRUCTURES TO VARIOUS TYPES OF ACOUSTIC EXCITATION BE MEASURED AND RECORDED USING A LASER AND OPTICAL INTERFEROMETRIC TECHNIQUES. ONCE THESE ARRAY MEASUREMENT TECHNIQUES ARE FULLY DEVELOPED, WE FURTHER PROPOSE THAT OPTICALLY GATHERED ACOUSTIC DATA BE PROCESSED BY "BACKWARD WAVE PROPAGATION" TECHNIQUES. THESE TECHNIQUES WILL ALLOW US TO DETERMINE THE STATE (STRESS FIELD, CAVITIES, INCLUSIONS, ZONES OF FRACTURED ROCK, ETC.) OF THE ROCK VOLUME ADJACENT TO THE ROCK SURFACE BEING EXAMINED OPTICALLY. THIS DEMONSTRATED CAPABILITY WOULD LEAD TO THE DEVELOPMENT OF RAPID, INEXPENSIVE TOOLS FOR THE EVALUATION OF LARGE STRUCTURES IN ANY KIND OF ROCK, AND IN PARTICULAR, LEAD TO PRACTICAL EVALUATION METHODS FOR LARGE UNDERGROUND STRUCTURES IN OIL SHALE. THE INCREASED SAVINGS IN TIME AND MONEY AND THE ENHANCED SAFETY TO PERSONNEL WOULD MORE THAN OFFSET THE COST OF DEVELOPMENT.

Principal Investigator:

Gerald L. Fitzpatrick
0

Business Contact:

Small Business Information at Submission:

Sigma Research, Inc.
3200 George Washington Richland, WA 98188

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No