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

한국지반공학회 (Korean Geotechnical Society)
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충전절리면의 미끄러짐특성에 관한 연구

A Study on the Sliding Characteristics of Infilling-joint Surface

  • 이정엽 (한국건설기술연구원 토목연구부 지반구조물그룹) ;
  • 박영목 (영남대학교 토목공학과) ;
  • 김재석 (영남대학교 토목공학과) ;
  • 구호본 (한국건설기술연구원 토목연구부 지반구조물그룹) ;
  • 백용 (한국건설기술연구원 토목연구부 지반구조물그룹)
  • Lee, Jung-Yub (Geostructure Research Group, Korea Institute of Construction Technology) ;
  • Park, Yeong-Mog (Dept. of Civil Engineering, Yeungnam Univ.) ;
  • Kim, Jae-Seok (Dept. of Civil Engineering, Yeungnam Univ.) ;
  • Koo, Ho-Bon (Geostructure Research Group, Korea Institute of Construction Technology) ;
  • Baek, Yong (Geostructure Research Group, Korea Institute of Construction Technology)
  • 발행 : 2003.03.01
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초록

The purpose of this study is to understand the sliding characteristics of the infilling-joint surface using the new devised shear test apparatus with changeable slope for the original infilling materials and the infilling materials experienced cyclic freezing-thawing processes. Three types of the mother rock classified as the igneous rock, the metamorphic rock and the sedimentary rock and the infilling materials were collected for laboratory test. The cohesion according to the slope change of the rock joint shows large variation within ${\pm}$5 degrees but the internal friction angle shows appears the linear decreasing tendency. It is confirmed that the affecting factor of slope change of rock joint at the behavior of rock mass is larger than that of the infilling thickness. Test results show that the cohesion and the internal friction angle in 100 times of cyclic freezing-thawing processes are decreased about 50 percent compared with original one. A further study using various infillings materials would lead to a better understanding of the failure mechanism of rock mass by slope change of rock joint.

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