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http://dx.doi.org/10.12652/Ksce.2011.31.1C.019

Physical and Mechanical Characteristics of Subgrade Soil using Nondestructive and Penetration Tests  

Kim, Kyu-Sun (삼성물산(주) 건설부문 기반기술연구소)
Kim, Dong-Hee (고려대학교 건축.사회환경공학부)
Fratta, Dante (위스콘신매디슨대학교 사회환경공학과)
Lee, Woojin (고려대학교 건축.사회환경공학부)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.31, no.1C, 2011 , pp. 19-27 More about this Journal
Abstract
This paper evaluates the applicability of wave-based nondestructive methodologies and a penetration test for compaction quality measurements during road construction. To evaluate the physical and mechanical properties of compacted subgrade soil layers, soil stiffness gauge (SSG), time domain reflectometry (TDR), and miniature electro-mechanical systems (MEMS) accelerometers were used to nondestructively evaluate the soil response during and after compaction and dynamic cone penetrometer (DCP) profiles were used to evaluate the soil shear strength after compaction was completed. At the field site, two types of soils were compacted with four different compaction equipments and energies. Field testing results indicate that soil parameters evaluated by different testing methods, which are SSG, TDR, MEMS accelerometer, and DCP, are highly correlated. In addition, it is shown that the physical and mechanical tests deployed in this study can be used as alternative methods to the conventional compaction quality evaluation methods when assessing the overall quality and the engineering response of compacted lifts.
Keywords
nondestructive test; penetration test; elastic wave; compaction;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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