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2019 Vol.6, Issue 4 Preview Page

Original Article

Development and Verification of Eco-hybrid Rolling Mat for Preventing Bank Erosion Based on Large-scale Experiments

실규모 하천 실험을 통한 하안침식 방지 Eco-hybrid 롤링매트 공법 개발 및 검증

Un Ji12*
,
Eun-Kyung Jang3
,
Myeonghui Ahn4
,
Won Kim5
지 운12*
,
장 은경3
,
안 명희4
,
김 원5
1Senior Researcher, Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology, Goyang 10223, Korea
2Associate Professor, Department of Civil and Environmental Engineering, Korea University of Science and Technology, Daejeon 34113, Korea
3Research Specialist, Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology, Goyang 10223, Korea
4Budding Researcher, Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology, Goyang 10223, Korea
5Senior Research Fellow, Department of Land, Water and Environment Research, Korea Institute of Civil Engineering and Building Technology, Goyang 10223, Korea
1한국건설기술연구원 국토보전연구본부 수석연구원
2과학기술연합대학원대학교 건설환경공학 부교수
3한국건설기술연구원 국토보전연구본부 전임연구원
4한국건설기술연구원 국토보전연구본부 신진연구원
5한국건설기술연구원 국토보전연구본부 선임연구위원
* Corresponding Author
31 December 2019. pp. 217-226
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Abstract

Optimum engineering methods for bank protection were classified based on steepness of bank slope and an existence of waterfront facility in the floodplain, and a new concept of eco-hybrid rolling mat method which could be applicable for the unfitted cases with previously developed countermeasures was suggested in this study. The eco-hybrid rolling mat method can be constructed while maintaining the river environment and ecosystem that does not interfere with the ground and slopes, when bank erosion occurs, it is an economical and efficient construction method that can protect the revetment and the bank slope immediately. The developed eco-hybrid rolling mat method was verified for the designed structure, system, function and effect based on large-scale river experiments including field exposure and decomposition test. As a result, the normal operation and effect of the rolling mat ted under low and high velocity conditions were confirmed with respect to bank protection. The effect of bank erosion prevention was quantitatively validated by sediment concentration monitoring and analysis, and the product specification of the eco-hybrid rolling mat was presented based on the standardized mat applied in real-scale tests.

Keywords
Bank Erosion
Eco-hybrid Rolling-Mat
Large-scale Experiment
Revetment

본 연구에서는 하천의 하안 경사와 친수시설 유무에 따라 적절한 하안 보호 공법을 유형화하였으며, 특히 기존의 호안 공법으로 하안침식 방지 대책 적용이 적절하지 않은 유형에 대해 적용 가능한 신개념 Eco-hybrid 롤링매트 공법을 제시하였다. Eco-hybrid 롤링매트 공법은 지반과 사면의 교란없이 하천 환경과 생태 조건의 변화를 최소화하는 시공이 가능하고, 하안침식이 발생할 경우 즉각적인으로 호안이나 제방 사면을 보호할 수 있는 경제적이고 효율적인 공법이다. 개발된 Eco-hybrid 롤링매트 공법은 실규모 하천 실험을 통해 공법의 구조 및 시스템, 기능과 효과를 검증하였다. 현장에서 발생할 수 있는 여러 변형 및 부패 테스트를 포함한 실규모 하천 실험 검증을 수행하였으며, 저유속과 고유속 조건에서 롤링매트의 작동과 하안침식 방지 효과를 확인하였다. 하안침식 방지 효과는 유사 농도 분석을 통해 정량적으로 검증하였으며, 실험에 활용한 롤링매트를 기준으로 규격화하여 Eco-hybrid 롤링매트 공법의 제품의 시방 (안)을 제시하였다.

키워드
하안침식
친환경 롤링매트
실규모 실험
호안 공법
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Information
  • Publisher :Korean Society of Ecology and Infrastructure Engineering
  • Publisher(Ko) :응용생태공학회
  • Journal Title :Ecology and Resilient Infrastructure
  • Journal Title(Ko) :응용생태공학회 논문집
  • Volume : 6
  • No :4
  • Pages :217-226
  • Received Date : 2019-10-23
  • Revised Date : 2019-11-18
  • Accepted Date : 2019-11-18
  • DOI :https://doi.org/10.17820/eri.2019.6.4.217
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