Journal of the Korean Geosynthetics Society (한국지반신소재학회논문집)

Korean Geosynthetics Society (한국지반신소재학회)
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Experimental and Field Investigations for the Accuracy of the Frost Depth Indicator with Methylene Blue Solution

실내실험과 현장실험을 통한 Methylene Blue 동결깊이 측정장치 신뢰성 검토에 관한 연구

  • Kim, Hak Seung (Geotechnical Engineering Research Division, Korea Institute of Construction Technology) ;
  • Lee, Jangguen (Geotechnical Engineering Research Division, Korea Institute of Construction Technology) ;
  • Kim, Young Seok (Geotechnical Engineering Research Division, Korea Institute of Construction Technology) ;
  • Kang, Jae-Mo (Geotechnical Engineering Research Division, Korea Institute of Construction Technology) ;
  • Hong, Seung-Seo (Geotechnical Engineering Research Division, Korea Institute of Construction Technology)
  • Received : 2013.08.06
  • Accepted : 2013.09.04
  • Published : 2013.09.30
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Abstract

The frost depth is one of important factors in the design of structures such as roadways, buried pipeline, and foundations. A frost indicator with methylene blue solution has several advantages with respect to installation cost, maintenance, and simple measurement. However, as a geotechnical engineering aspect, the accuracy of the frost indicator has not been proved yet. This paper presents experimental and field investigations of the accuracy of the frost indicator and contour maps of maximum frost depth. The contour maps of maximum frost depth can be applied to design geo-infrastructure in South Korea.

동결깊이는 영구 동토지역 및 계절성 동토지역에서 도로의 동상방지층, 매설관의 깊이 및 건물의 기초를 설계하는데 중요한 고려사항이다. methylene blue 동결깊이 측정장치는 지중 온도센서를 이용한 계측시스템과 비교하여 저렴하고 유지관리와 측정이 용이한 장점을 지니고 있다. 그러나 지반공학적 관점에서 지중에 매설된 methylene blue 동결깊이 측정장치의 신뢰성을 검토한 연구는 미미하다. 본 논문에서는 실내실험과 현장실험을 통해 methylene blue 동결깊이 측정장치의 신뢰성을 검토하고, 나아가 국내 현장에서 검증된 측정장치로 장기간 측정된 동결깊이 실측 데이터를 이용하여 최대 동결깊이 분포도를 작성하였다. 본 연구를 바탕으로 실측된 동결깊이는 향후 국내 지반구조물 설계에 중요한 자료로 활용될 수 있을 것으로 판단된다.

Keywords

References

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