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2015 Vol.31, Issue 2 Preview Page
Comparison of Critical Tractive Forces for Application of Soil Improvement Material to Bank Revetment Work

호안 제방사면 보강을 위한 지반개량재의 한계소류력 비교

You-Seong Kim1
,
Jae-Hong Kim2*
,
Se-Gwan Seo3
,
In-Hwang Bhang4
김 유성1
,
김 재홍2*
,
서 세관3
,
방 인황4
1Prof., Dept. of Civil Engrg., Chonbuk National Univ.
2Research Prof., Dept. of Civil Engrg., Chonbuk National Univ.
3Graduate Student, Dept. of Civil Engrg., Chonbuk National Univ.
4CEO, N-GENIUS
1전북대학교 토목공학과 교수
2전북대학교 토목공학과 연구교수
3전북대학교 토목공학과 박사과정
4전북대학교 토목공학과 박사과정, 엔지니어스(주) 대표이사
*교신저자. *Corresponding Author. 
28 February 2015. pp. 65-73
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Abstract

The bank revetment work which is conducted on the slope of river bank to protect against flowing water as a geotechnical structure has been applied as an average value of critical tractive force based on domestic and international standard design. Currently, an appropriate evaluation is needed for the hydraulic stability and geotechnical behavior analysis of bank revetments because of the effects of climate change and ambiguous design criterion. This study has compared the critical tractive forces of soil improvement material and conventional materials used for the bank revetment work. Through various experiments, the shear strength of mixtures with soil improvement material was investigated by curing time and mixture ratio. It was found that the critical tractive force of the mixture obtained from a scour test is suitable to the reinforcement of the slope of river bank which has problems such as seepage erosion and scour.

Keywords
Revetment work
Tractive force
Scour test
Soil improvement material
Seepage erosion

제방을 보호하기 위하여 법면에 설치되는 호안공사는 국내외 설계기준에 의하여 하상과 호안법면에서의 최대 소류력을 산정하여 제방 사면에 평균적인 개념으로 적용하고 있다. 최근에는 기후변화로 인한 극우강우가 많아지고 호안의 안정성을 위한 평가기법이 제시되지 않기 때문에 호안사면의 수리학적 안정성과 지반공학적 파괴거동의 적절한 평가가 필요하다. 본 연구에서는 하천사면을 보강 시, 최대소류력에 견딜 수 있는 강도를 기존재료인 원지반과 지반개량재를 비교하였다. 지반개량재의 다양한 역학적 실험을 통하여 원지반토와 지반개량재의 함유량에 따른 최적의 혼합비율과 적절한 강도의 양생일을 예측할 수 있었다. 세굴률 시험결과를 바탕으로 원지반토와 지반개량재 혼합토의 허용소류력을 비교･분석한 결과, 호안 제방의 비탈면을 보강하기에 충분한 강도증진과 그에 따른 안정성을 확인할 수 있어 하천호안의 세굴과 침식 방지효과가 있으리라 판단되었다.

References
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Information
  • Publisher :The Korean Geotechnical Society
  • Publisher(Ko) :한국지반공학회
  • Journal Title :Journal of the Korean Geotechnical Society
  • Journal Title(Ko) :한국지반공학회 논문집
  • Volume : 31
  • No :2
  • Pages :65-73
  • Received Date : 2014-11-03
  • Revised Date : 2015-01-22
  • Accepted Date : 2015-01-30
  • DOI :https://doi.org/10.7843/kgs.2015.31.2.65
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