논문실적
| A LARGE SCALE RESONANT COLUMN TESTING SYSTEM FOR EVALUATING DYNAMIC PROPERTIES OF GRAVELLY FILL MATERIALS |
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학술지명 32nd Annual USSD Conference
저자 신동훈,하익수,김남룡,김민섭
발표일 2012-04-24
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This article introduces a large scale resonant column testing apparatus to evaluate small-strain shear modulus, damping ratio, and the modulus reduction curve corresponding to shear strain level of gravelly soils. These key parameters are important for the seismic analysis of geotechnical systems such as earth embankment dams and the main purpose of this new testing system is focusing on the characterization of gravelly fill materials for dam construction. Detailed configurations of the fixed-free Stokoe type resonant column testing apparatus which can test 200mm in diameter specimen are introduced, and the system was calibrated. A series of tests for gravelly fill material have been conducted on large scale specimens 200mm in diameter and 400mm in height. The result and applicability of this testing apparatus to evaluate dynamic properties of gravelly fill materials is addressed. Finally, the applicability of this new system is discussed. |
