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Evaluation of Maximum Shear Modulus of Silty Sand in Songdo Area in the West Coast of Korea Using Various Testing Methods  

Jung Young-Hoon (Northwestern University)
Lee Kang-Won (R&D Center, Korea Gas Corporation)
Kim Myoung-Mo (School of Civil Urban and Geoenvironment system, Seoul National University)
Kwon Hyung-Min (School of Civil Urban and Geoenvironment system, Seoul National University)
Chung Choong-Ki (School of Civil Urban and Geoenvironment system, Seoul National University)
Publication Information
Journal of the Korean Geotechnical Society / v.21, no.9, 2005 , pp. 65-75 More about this Journal
Abstract
Maximum shear modulus of soil is a principal parameter for the design of earth structures under static and dynamic loads. In this study, the statistical data of maximum shear moduli of silty sands in Songdo area in the west coast of Korea evaluated by various field and laboratory tests - standard penetration test (SPT), cone penetration test (CPT), self-boring pressuremeter test (SBPT), downhole test (DH), seismic cone penetration test (SCPT) and resonant column test (RC) were analyzed. Based on the measurement of shear moduli using DH which is known as maximum value at very small strain, the new empirical correlations between shear moduli and SPT or CPT values were proposed. Predictions of maximum shear moduli using the proposed correlations were compared with the data obtained from DH. The good agreement confirmed that the proposed correlations reasonably predicted the maximum shear moduli of silty sands in the area.
Keywords
CPT; Down hole test; Maximum shear modulus; Small strain; SPT;
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