한국지반공학회:학술대회논문집 (Proceedings of the Korean Geotechical Society Conference)
- 한국지반공학회 2006년도 춘계 학술발표회 논문집
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- Pages.402-413
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- 2006
정규압밀점토의 강성도와 전단강도의 상관관계
Relationship Between Stiffness And Shear Strength of Normally Consolidated Clays
- Park, Chi-Won (Dept. of Civil Engineering, Kyunghee Univ.) ;
- Park, Dong-Sun (Korea Land Corporation) ;
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Mok, Young-Jin
(Dept. of Civil Engineering, Kyunghee Univ.)
- 발행 : 2006.03.24
초록
Strength evaluation of soft soils is a formidable task because of difficulties in sampling, specimen preparation and setting in triaxial cells. In undrained triaxial testing, sampling disturbance, verticality of specimen and bedding effect give a great influence on shear strength measurements. In the other hand, shear wave measurements of specimens are less influenced by these factors. In this research, the bender elements were attached top cap and base pedestal of triaxial cell and shear wave velocities were measured. To initiate a methodology to evaluate shear strength indirectly by measuring shear wave velocity, a relationship between shear strength and shear wave velocity was developed with kaolinite specimens consolidated in the laboratory. Undrained shear strength turns out to increase linearly with shear wave velocity. Stress-strain curves can also be predicted with a hyperbolic model and shear wave measurements.