Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)

Korean Geotechnical Society (한국지반공학회)
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A Methodology to Determine Resilient Modulus for Crushed Rock-Soil Mixture

암버력-토사 성토의 회복탄성계수 산정방법

  • Park, In-Beom (Geotechnical and Tunnel Engineering Division, Chunil Engineering co., ltd.) ;
  • Kim, Seong-Su (Dept. of Civil Engineering, Kyunghee University) ;
  • Jung, Young-Hoon (Dept. of Civil Engineering, Kyunghee University) ;
  • Mok, Young-Jin (Dept. of Civil Engineering, Kyunghee University)
  • 박인범 ((주)천일기술단 지반터널사업부) ;
  • 김성수 (경희대학교 토목공학과) ;
  • 정영훈 (경희대학교 토목공학과) ;
  • 목영진 (경희대학교 토목공학과)
  • Published : 2010.09.09
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Abstract

A method was developed to determine resilient modulus for crushed rock-soil mixtures whose usage has been increased recently without engineering specifications. The method is based on the subtle different modulus called nonlinear dynamic modulus and was lately implemented in residual soils and engineered crushed-stones. Hereby. the same method was expanded to crushed rock-soil mixtures containing as large grain diameter as 300mm. The method utilize field direct-arival tests for the determination of maximum Young's modulus, and a large scale free-free resonant column test, which is recently developed to is capable to test as large grain diameter as 25mm, for modulus reduction curves. The prediction model of resilient modulus was evaluated for crushed rock-soil mixtures of a highway construction site at Gimcheon, Korea.

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