Development of In-Situ Stress Measurement Technique Using   Ultrasonic Wave Attenuation Method
{'Code': '07030000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CMMI', 'LongName': 'Div Of Civil, Mechanical, & Manufact Inn'}}
{'SignBlockName': 'Barbara Weatherly', 'PO_EMAI': 'bweather@nsf.gov', 'PO_PHON': '7032927384'}
This research develops a novel approach using pulse transmission                technique to measure in situ stress in deep geologic strata through             boreholes.  The study develops a predictive model for stress                    distribution and stress-attenuation relationships for various types of          rocks.  A Boreholes Ultrasonic device will be designed and constructed.         The device has multiple ultrasonic transducers arranged in a drill stem         with spring loaded coupling between the transducer and the drill hole           wall.  Alterations of compression waves will be measured along the              points on the borehole surface and in situ stress distributions will be         calculated.
{'FirstName': 'Syd', 'LastName': 'Peng', 'PI_MID_INIT': 'S', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Syd S Peng', 'EmailAddress': None, 'NSF_ID': '000402151', 'StartDate': '09/01/1986', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'West Virginia University', 'CityName': 'MORGANTOWN', 'ZipCode': '26506', 'PhoneNumber': '3042930111', 'StreetAddress': '1500 UNIVERSITY AVE', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'West Virginia', 'StateCode': 'WV', 'CONGRESSDISTRICT': '02', 'CONGRESS_DISTRICT_ORG': 'WV02', 'ORG_UEI_NUM': 'MNL4D3VQUWA5', 'ORG_LGL_BUS_NAME': 'WEST VIRGINIA UNIVERSITY', 'ORG_PRNT_UEI_NUM': None}
{'Name': None, 'CityName': None, 'StateCode': None, 'ZipCode': None, 'StreetAddress': None, 'CountryCode': None, 'CountryName': None, 'StateName': None, 'CountryFlag': None, 'CONGRESSDISTRICT': None, 'CONGRESS_DISTRICT_PERF': '""'}
{'Code': '1441', 'Text': 'MECHANICS'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1986&All=true', 'xml': '8612242.xml'}