Engineering Research Equipment Grant:  Closed-Loop Cyclic   Triaxial Testing System for Earthquake Engineering Research
{'Code': '07030000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CMMI', 'LongName': 'Div Of Civil, Mechanical, & Manufact Inn'}}
{'SignBlockName': 'Clifford J. Astill', 'PO_EMAI': None, 'PO_PHON': None}
An acoustic system capable of making accurate                                   shear and compression-wave velocity                                             measurements in soil specimens has been                                         developed at the University of New Hampshire.                                   This system has been used to determine the                                      relationship between acoustic wave                                              transmission characteristics and liquefaction                                   resistance in sands.                                                                                                                                            The objective of this project is to upgrade                                     an existing cyclic triaxial soil loading                                        device, and to increase the speed of                                            operation of the acoustic system.  The aim is                                   to determine the capability of this system to                                   investigate the behavior of clays under                                         dynamic loading, specifically:                                                  (1) The generation of residual pore-water                                       pressures and pore-pressure variation during                                    individual loading cycles;                                                      (2) Shear modulus degradation and threshold                                     levels of cyclic shear strain;                                                  (3) Evolution of material damping with cyclic                                   strain level.                                                                                                                                                   This new testing system has the potential to                                    yield important information on the failure of                                   earth masses and building foundations during                                    earthquakes due to the phenomenon of soil                                       liquefaction.
[{'FirstName': 'Pedro', 'LastName': 'de Alba', 'PI_MID_INIT': 'A', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Pedro A de Alba', 'EmailAddress': 'pedro.dealba@unh.edu', 'NSF_ID': '000453140', 'StartDate': '04/15/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}, {'FirstName': 'Kenneth', 'LastName': 'Baldwin', 'PI_MID_INIT': 'C', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Kenneth C Baldwin', 'EmailAddress': 'kcb@christa.unh.edu', 'NSF_ID': '000096596', 'StartDate': '04/15/1989', 'EndDate': None, 'RoleCode': 'Co-Principal Investigator'}, {'FirstName': 'Jean', 'LastName': 'Benoit', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Jean Benoit', 'EmailAddress': 'jean.benoit@unh.edu', 'NSF_ID': '000469467', 'StartDate': '04/15/1989', 'EndDate': None, 'RoleCode': 'Co-Principal Investigator'}]
{'Name': 'University of New Hampshire', 'CityName': 'DURHAM', 'ZipCode': '038242620', 'PhoneNumber': '6038622172', 'StreetAddress': '51 COLLEGE RD', 'StreetAddress2': 'BLDG 107', 'CountryName': 'United States', 'StateName': 'New Hampshire', 'StateCode': 'NH', 'CONGRESSDISTRICT': '01', 'CONGRESS_DISTRICT_ORG': 'NH01', 'ORG_UEI_NUM': 'GBNGC495XA67', 'ORG_LGL_BUS_NAME': 'UNIVERSITY SYSTEM OF NEW HAMPSHIRE', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1496', 'Text': 'GEOTECHNICAL II'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1988&All=true', 'xml': '8820956.xml'}