한국지반공학회:학술대회논문집 (Proceedings of the Korean Geotechical Society Conference)
- 한국지반공학회 2006년도 춘계 학술발표회 논문집
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- Pages.161-170
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- 2006
연약지반의 강성 측정을 위한 벤더 엘리멘트의 현장 적용성 연구
Implementation of Bender Elements to In-situ Measurements of Stiffness of Soft Clays
- Jung, Jae-Woo (Dept. of Civil Eng. KyungHee Univ.) ;
- Han, Man-Jin (Dept. of Civil Eng. KyungHee Univ.) ;
- Kim, Bong-Chan (DIKE Co., Ldt.) ;
- Mok, Young-Jin (Dept. of Civil Eng, KyungHee Vniv.)
- 발행 : 2006.03.24
초록
Bender elements, composed of thin piezo-ceramics and elastic shims, have been used to measure shear wave velocities of specimens in laboratories. In a preliminary stage of their field applications, an in-house research of optimizing suitable bender elements and geometrical arrangement has been carried out in a barrel of kaolinite-water mixture. Two types of measurement configuration, similar to cross-hole and in-hole seismic testing, has been implemented. A pair of prototype instrumented rods was penetrated into a soft clay layer in the west coast and excellent shear waves were recorded. Development of penetration device(mandrel) and associated instrumented rods are in progress for deeper investigation.