한국지구물리탐사학회:학술대회논문집
- 2005.09a
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- Pages.117-123
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- 2005
In-hole seismic method for measuring dynamic properties of soils
지반물성치 측정을 위한 인흘탄성파시험
- Mok Young Jin (College of Architecture and Civil Engineering, Kyung Hee University) ;
- Kim Young Su (Korea Engineering Consultants Corporation Co., Ltd.) ;
- You Chang Yeon (Major in Civil Eng., College of Architecture and Civil Engineering, Kyung Hee University) ;
- Han Man Jin (Major in Civil Eng., College of Architecture and Civil Engineering, Kyung Hee University)
- Published : 2005.09.01
Abstract
An in-hole seismic tests, which has been developed for measuring dynamic properties of soils and rock mass, is a bore hole seismic method that has cost effectiveness and practicality. The upgraded features include the motorized triggering system rather than the manual prototype version in the previous studies and a damper between source and receiver in the module. The performance of the probe has been verified through extensive cross-hole tests and in-hole tests at various sites. The dynamic stiffness of subsurface materials and rock mass have been evaluated and recently, the measurement of shear wave velocity was successfully adopted at horizontal holes of tunnel-face to install explosives. So the application of in-hole seismic test for various soil materials was certified.
지반의 동적물성치 측정을 위해 시도된 인홀시험법은 경제성과 실용성을 갖춘 공내 탄성파탐사이다. 이전 연구에서 개발된 인홀 장비의 수동식 트리거(trigger) 시스템을 전기식 시스템으로 개량하였고, 발진자와 감지기 사이에 최적의 연결재를 개발하였다. 여러 현장에서 크로스홀 시험과 인홀 시험을 통하여 이 장비의 성능을 검증하였다. 토사층과 암반에서 동적 강성을 평가하였고, 최근에는 터널막장의 수평한 장약공에서도 전단파속도를 측정함으로서 다양한 지반에의 적용성을 확인하였다.