Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2008.10a
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- Pages.1404-1414
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- 2008
An Assessment of a Resilient Modulus Model by Comparing Predicted and Measured Elastic Deformation of Railway Trackbeds
철도노반의 탄성변위 예측 및 측정을 통한 회복탄성계수 모델 평가
- Park, Chul-Soo (Railroad Structure Research Department, Korea Railroad Research Institute) ;
- Kim, Eun-Jung (Dept. of Civil Eng., Kyunghee University) ;
- Oh, Sang-Hoon (Dept. of Civil Eng., Kyunghee University) ;
- Kim, Hak-Sung (Dept. of Civil Eng., Kyunghee University) ;
- Mok, Young-Jin (College of Architecture and Civil Engineering, Kyunghee University)
- 박철수 (한국철도기술연구원 철도구조연구실) ;
- 김은정 (경희대학교 토목공학과) ;
- 오상훈 (경희대학교 토목공학과) ;
- 김학성 (경희대학교 토목공학과) ;
- 목영진 (경희대학교 토목건축대학)
- Published : 2008.10.10
Abstract
In the mechanistic-empirical trackbed design of railways, the resilient modulus is the key input parameter. This study focused on the resilient modulus prediction model, which is the functions of mean effective principal stress and axial strain, for three types of railroad trackbed materials such as crushed stone, weathered soil, and crushed-rock soil mixture. The model is composed with the maximum Young's modulus and nonlinear values for higher strain in parallel with dynamic shear modulus. The maximum values is modeled by model parameters,
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