한국지반공학회논문집 (Journal of the Korean Geotechnical Society)

  • 제24권11호
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  • Pages.101-109
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  • 2008
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  • 1229-2427(pISSN)
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  • 2288-646X(eISSN)
한국지반공학회 (Korean Geotechnical Society)
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단입자파쇄강도에 기초한 화강풍화토의 압축특성에 미치는 수분의 영향

Influence of Water on Compression Characteristic of Decomposed Granite Soil Based on Single Particle Crushing Strength

  • 함태규 (한국건설기술연구원 토질 및 기초연구실) ;
  • 김욱기 (일본야마구치대학교 지반공학연구실)
  • Ham, Tae-Gew (Geotechnical Engrg. Division, Korean Institute of Construction Technology) ;
  • Kim, Uk-Gie (Department of Civil and Environmental Engrg., Faculty of Engrg., Yamaguchi Univ.)
  • 발행 : 2008.11.30
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초록

수분에 기인한 화강풍화토의 압축성 변화정도를 명확히 밝히기 위하여 풍화도가 서로 다른 3종류의 화강풍화토와 실리카를 이용해, 기건상태와 습윤상태에서 단입자파쇄시험과 일차원압축시험을 실시했다. 실험결과, 입자가 침수됨에 따라 입자표면의 강도를 나타내는 제1파쇄강도가 현저히 저하되고, 일차원적인 압축성이 증가되는 것이 확인되었다. 이와 같은 결과는 입자가 침수됨에 따라 입자강도가 저하되어 입자파쇄가 증가하는 것에 기인하는 것으로 평가되었다.

In order to investigate the influence of the water on compression characteristic of decomposed granite soils, a single particle crushing test and one-dimensional compression tests were carried out on three decomposed granite soils and Silica sand. The initial fracture strength for single particle reduced and variability of the strength increases due to weakening by existing water. Moreover, it was recognized that one-dimensional compression characteristic was related to the initial fracture strength characteristic, and the initial fracture strength also has the effect of weathering.

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참고문헌

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